159 files changed, 15158 insertions, 6023 deletions

diff --git a/OpenSim/Region/Application/OpenSim.cs b/OpenSim/Region/Application/OpenSim.cs
index 6255515..5f07272 100644
--- a/OpenSim/Region/Application/OpenSim.cs
+++ b/OpenSim/Region/Application/OpenSim.cs
@@ -35,6 +35,7 @@ using System.Text;
 using System.Text.RegularExpressions;
 using System.Timers;
 using log4net;
+using NDesk.Options;
 using Nini.Config;
 using OpenMetaverse;
 using OpenSim.Framework;
@@ -253,8 +254,14 @@ namespace OpenSim
             m_console.Commands.AddCommand("Debug", false, "debug teleport", "debug teleport", "Toggle teleport route debugging", Debug);
 
             m_console.Commands.AddCommand("Debug", false, "debug scene",
-                                          "debug scene <scripting> <collisions> <physics>",
-                                          "Turn on scene debugging", Debug);
+                                          "debug scene active|collisions|physics|scripting|teleport true|false",
+                                          "Turn on scene debugging.",
+                                            "If active     is false then main scene update and maintenance loops are suspended.\n"
+                                          + "If collisions is false then collisions with other objects are turned off.\n"
+                                          + "If physics    is false then all physics objects are non-physical.\n"
+                                          + "If scripting  is false then no scripting operations happen.\n"
+                                          + "If teleport   is true  then some extra teleport debug information is logged.",
+                                          Debug);
 
             m_console.Commands.AddCommand("General", false, "change region",
                                           "change region <region name>",
@@ -291,7 +298,7 @@ namespace OpenSim
 
             m_console.Commands.AddCommand("Archiving", false, "save oar",
                                           //"save oar [-v|--version=<N>] [-p|--profile=<url>] [<OAR path>]",
-                                          "save oar [-h|--home=<url>] [--noassets] [--publish] [--perm=<permissions>] [<OAR path>]",
+                                          "save oar [-h|--home=<url>] [--noassets] [--publish] [--perm=<permissions>] [--all] [<OAR path>]",
                                           "Save a region's data to an OAR archive.",
 //                                          "-v|--version=<N> generates scene objects as per older versions of the serialization (e.g. -v=0)" + Environment.NewLine
                                           "-h|--home=<url> adds the url of the profile service to the saved user information.\n"
@@ -301,6 +308,7 @@ namespace OpenSim
                                           + "   this is useful if you're making oars generally available that might be reloaded to the same grid from which you published\n"
                                           + "--perm=<permissions> stops objects with insufficient permissions from being saved to the OAR.\n"
                                           + "   <permissions> can contain one or more of these characters: \"C\" = Copy, \"T\" = Transfer\n"
+                                          + "--all saves all the regions in the simulator, instead of just the current region.\n"
                                           + "The OAR path must be a filesystem path."
                                           + " If this is not given then the oar is saved to region.oar in the current directory.",
                                           SaveOar);
@@ -310,8 +318,11 @@ namespace OpenSim
                                           "Change the scale of a named prim", HandleEditScale);
 
             m_console.Commands.AddCommand("Users", false, "kick user",
-                                          "kick user <first> <last> [message]",
-                                          "Kick a user off the simulator", KickUserCommand);
+                                          "kick user <first> <last> [--force] [message]",
+                                          "Kick a user off the simulator",
+                                          "The --force option will kick the user without any checks to see whether it's already in the process of closing\n"
+                                          + "Only use this option if you are sure the avatar is inactive and a normal kick user operation does not removed them",
+                                          KickUserCommand);
 
             m_console.Commands.AddCommand("Users", false, "show users",
                                           "show users [full]",
@@ -328,10 +339,6 @@ namespace OpenSim
                                           "show circuits",
                                           "Show agent circuit data", HandleShow);
 
-            m_console.Commands.AddCommand("Comms", false, "show http-handlers",
-                                          "show http-handlers",
-                                          "Show all registered http handlers", HandleShow);
-
             m_console.Commands.AddCommand("Comms", false, "show pending-objects",
                                           "show pending-objects",
                                           "Show # of objects on the pending queues of all scene viewers", HandleShow);
@@ -416,6 +423,7 @@ namespace OpenSim
             {
                 RunCommandScript(m_shutdownCommandsFile);
             }
+            
             base.ShutdownSpecific();
         }
 
@@ -453,11 +461,17 @@ namespace OpenSim
         /// <param name="cmdparams">name of avatar to kick</param>
         private void KickUserCommand(string module, string[] cmdparams)
         {
-            if (cmdparams.Length < 4)
+            bool force = false;
+            
+            OptionSet options = new OptionSet().Add("f|force", delegate (string v) { force = v != null; });
+
+            List<string> mainParams = options.Parse(cmdparams);
+
+            if (mainParams.Count < 4)
                 return;
 
             string alert = null;
-            if (cmdparams.Length > 4)
+            if (mainParams.Count > 4)
                 alert = String.Format("\n{0}\n", String.Join(" ", cmdparams, 4, cmdparams.Length - 4));
 
             IList agents = SceneManager.GetCurrentSceneAvatars();
@@ -466,8 +480,8 @@ namespace OpenSim
             {
                 RegionInfo regionInfo = presence.Scene.RegionInfo;
 
-                if (presence.Firstname.ToLower().Contains(cmdparams[2].ToLower()) &&
-                    presence.Lastname.ToLower().Contains(cmdparams[3].ToLower()))
+                if (presence.Firstname.ToLower().Contains(mainParams[2].ToLower()) &&
+                    presence.Lastname.ToLower().Contains(mainParams[3].ToLower()))
                 {
                     MainConsole.Instance.Output(
                         String.Format(
@@ -480,7 +494,7 @@ namespace OpenSim
                     else
                         presence.ControllingClient.Kick("\nYou have been logged out by an administrator.\n");
 
-                    presence.Scene.IncomingCloseAgent(presence.UUID);
+                    presence.Scene.IncomingCloseAgent(presence.UUID, force);
                 }
             }
 
@@ -922,7 +936,8 @@ namespace OpenSim
                     }
                     else
                     {
-                        MainConsole.Instance.Output("Usage: debug scene scripting|collisions|physics|teleport true|false");
+                        MainConsole.Instance.Output(
+                            "Usage: debug scene active|scripting|collisions|physics|teleport true|false");
                     }
 
                     break;
@@ -1002,33 +1017,6 @@ namespace OpenSim
                     HandleShowCircuits();
                     break;
 
-                case "http-handlers":
-                    System.Text.StringBuilder handlers = new System.Text.StringBuilder("Registered HTTP Handlers:\n");
-
-                    handlers.AppendFormat("* XMLRPC:\n");
-                    foreach (String s in HttpServer.GetXmlRpcHandlerKeys())
-                        handlers.AppendFormat("\t{0}\n", s);
-
-                    handlers.AppendFormat("* HTTP:\n");
-                    List<String> poll = HttpServer.GetPollServiceHandlerKeys();
-                    foreach (String s in HttpServer.GetHTTPHandlerKeys())
-                        handlers.AppendFormat("\t{0} {1}\n", s, (poll.Contains(s) ? "(poll service)" : string.Empty));
-
-                    handlers.AppendFormat("* Agent:\n");
-                    foreach (String s in HttpServer.GetAgentHandlerKeys())
-                        handlers.AppendFormat("\t{0}\n", s);
-
-                    handlers.AppendFormat("* LLSD:\n");
-                    foreach (String s in HttpServer.GetLLSDHandlerKeys())
-                        handlers.AppendFormat("\t{0}\n", s);
-
-                    handlers.AppendFormat("* StreamHandlers ({0}):\n", HttpServer.GetStreamHandlerKeys().Count);
-                    foreach (String s in HttpServer.GetStreamHandlerKeys())
-                        handlers.AppendFormat("\t{0}\n", s);
-
-                    MainConsole.Instance.Output(handlers.ToString());
-                    break;
-
                 case "modules":
                     MainConsole.Instance.Output("The currently loaded shared modules are:");
                     foreach (IRegionModule module in m_moduleLoader.GetLoadedSharedModules)
@@ -1123,7 +1111,7 @@ namespace OpenSim
                             aCircuit.Name,
                             aCircuit.child ? "child" : "root",
                             aCircuit.circuitcode.ToString(),
-                            aCircuit.IPAddress.ToString(),
+                            aCircuit.IPAddress != null ? aCircuit.IPAddress.ToString() : "not set",
                             aCircuit.Viewer);
                 });
 
diff --git a/OpenSim/Region/Application/OpenSimBase.cs b/OpenSim/Region/Application/OpenSimBase.cs
index d107b7a..7232383 100644
--- a/OpenSim/Region/Application/OpenSimBase.cs
+++ b/OpenSim/Region/Application/OpenSimBase.cs
@@ -232,8 +232,6 @@ namespace OpenSim
 
             base.StartupSpecific();
 
-            m_stats = StatsManager.SimExtraStats;
-
             // Create a ModuleLoader instance
             m_moduleLoader = new ModuleLoader(m_config.Source);
 
@@ -249,51 +247,51 @@ namespace OpenSim
                 plugin.PostInitialise();
             }
 
-            AddPluginCommands();
+            if (m_console != null)
+            {
+                StatsManager.RegisterConsoleCommands(m_console);
+                AddPluginCommands(m_console);
+            }
         }
 
-        protected virtual void AddPluginCommands()
+        protected virtual void AddPluginCommands(CommandConsole console)
         {
-            // If console exists add plugin commands.
-            if (m_console != null)
-            {
-                List<string> topics = GetHelpTopics();
+            List<string> topics = GetHelpTopics();
 
-                foreach (string topic in topics)
-                {
-                    string capitalizedTopic = char.ToUpper(topic[0]) + topic.Substring(1);
+            foreach (string topic in topics)
+            {
+                string capitalizedTopic = char.ToUpper(topic[0]) + topic.Substring(1);
 
-                    // This is a hack to allow the user to enter the help command in upper or lowercase.  This will go
-                    // away at some point.
-                    m_console.Commands.AddCommand(capitalizedTopic, false, "help " + topic,
-                                                  "help " + capitalizedTopic,
-                                                  "Get help on plugin command '" + topic + "'",
-                                                  HandleCommanderHelp);
-                    m_console.Commands.AddCommand(capitalizedTopic, false, "help " + capitalizedTopic,
-                                                  "help " + capitalizedTopic,
-                                                  "Get help on plugin command '" + topic + "'",
-                                                  HandleCommanderHelp);
+                // This is a hack to allow the user to enter the help command in upper or lowercase.  This will go
+                // away at some point.
+                console.Commands.AddCommand(capitalizedTopic, false, "help " + topic,
+                                              "help " + capitalizedTopic,
+                                              "Get help on plugin command '" + topic + "'",
+                                              HandleCommanderHelp);
+                console.Commands.AddCommand(capitalizedTopic, false, "help " + capitalizedTopic,
+                                              "help " + capitalizedTopic,
+                                              "Get help on plugin command '" + topic + "'",
+                                              HandleCommanderHelp);
 
-                    ICommander commander = null;
+                ICommander commander = null;
 
-                    Scene s = SceneManager.CurrentOrFirstScene;
+                Scene s = SceneManager.CurrentOrFirstScene;
 
-                    if (s != null && s.GetCommanders() != null)
-                    {
-                        if (s.GetCommanders().ContainsKey(topic))
-                            commander = s.GetCommanders()[topic];
-                    }
+                if (s != null && s.GetCommanders() != null)
+                {
+                    if (s.GetCommanders().ContainsKey(topic))
+                        commander = s.GetCommanders()[topic];
+                }
 
-                    if (commander == null)
-                        continue;
+                if (commander == null)
+                    continue;
 
-                    foreach (string command in commander.Commands.Keys)
-                    {
-                        m_console.Commands.AddCommand(capitalizedTopic, false,
-                                                      topic + " " + command,
-                                                      topic + " " + commander.Commands[command].ShortHelp(),
-                                                      String.Empty, HandleCommanderCommand);
-                    }
+                foreach (string command in commander.Commands.Keys)
+                {
+                    console.Commands.AddCommand(capitalizedTopic, false,
+                                                  topic + " " + command,
+                                                  topic + " " + commander.Commands[command].ShortHelp(),
+                                                  String.Empty, HandleCommanderCommand);
                 }
             }
         }
@@ -623,7 +621,7 @@ namespace OpenSim
             if (account == null)
             {
                 m_log.ErrorFormat(
-                    "[OPENSIM]: Unable to store account. If this simulator is connected to a grid, you must create the estate owner account first.");
+                    "[OPENSIM]: Unable to store account. If this simulator is connected to a grid, you must create the estate owner account first at the grid level.");
             }
             else
             {
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs b/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs
index 650cd50..f6146a9 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs
@@ -241,8 +241,8 @@ namespace OpenSim.Region.ClientStack.Linden
                 m_HostCapsObj.RegisterHandler(
                     "SEED", new RestStreamHandler("POST", capsBase + m_requestPath, SeedCapRequest, "SEED", null));
 
-                m_log.DebugFormat(
-                    "[CAPS]: Registered seed capability {0} for {1}", capsBase + m_requestPath, m_HostCapsObj.AgentID);
+//                m_log.DebugFormat(
+//                    "[CAPS]: Registered seed capability {0} for {1}", capsBase + m_requestPath, m_HostCapsObj.AgentID);
 
                 //m_capsHandlers["MapLayer"] =
                 //    new LLSDStreamhandler<OSDMapRequest, OSDMapLayerResponse>("POST",
@@ -337,11 +337,12 @@ namespace OpenSim.Region.ClientStack.Linden
         public string SeedCapRequest(string request, string path, string param,
                                   IOSHttpRequest httpRequest, IOSHttpResponse httpResponse)
         {
-//            m_log.Debug("[CAPS]: Seed Caps Request in region: " + m_regionName);
+            m_log.DebugFormat(
+                "[CAPS]: Received SEED caps request in {0} for agent {1}", m_regionName, m_HostCapsObj.AgentID);
 
             if (!m_Scene.CheckClient(m_HostCapsObj.AgentID, httpRequest.RemoteIPEndPoint))
             {
-                m_log.DebugFormat(
+                m_log.WarnFormat(
                     "[CAPS]: Unauthorized CAPS client {0} from {1}",
                     m_HostCapsObj.AgentID, httpRequest.RemoteIPEndPoint);
 
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/EventQueueGetModule.cs b/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/EventQueueGetModule.cs
index e113c60..5bbdce8 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/EventQueueGetModule.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/EventQueueGetModule.cs
@@ -94,7 +94,7 @@ namespace OpenSim.Region.ClientStack.Linden
                 
                 //scene.CommsManager.HttpServer.AddLLSDHandler("/CAPS/EQG/", EventQueueFallBack);
 
-                scene.EventManager.OnNewClient += OnNewClient;
+//                scene.EventManager.OnNewClient += OnNewClient;
 
                 // TODO: Leaving these open, or closing them when we
                 // become a child is incorrect. It messes up TP in a big
@@ -102,6 +102,7 @@ namespace OpenSim.Region.ClientStack.Linden
                 // circuit is there.
 
                 scene.EventManager.OnClientClosed += ClientClosed;
+                
                 scene.EventManager.OnMakeChildAgent += MakeChildAgent;
                 scene.EventManager.OnRegisterCaps += OnRegisterCaps;
 
@@ -110,10 +111,10 @@ namespace OpenSim.Region.ClientStack.Linden
                     false,
                     "debug eq",
                     "debug eq [0|1|2]",
-                    "Turn on event queue debugging"
-                        + "<= 0 - turns off all event queue logging"
-                        + ">= 1 - turns on outgoing event logging"
-                        + ">= 2 - turns on poll notification",
+                    "Turn on event queue debugging\n"
+                        + "  <= 0 - turns off all event queue logging\n"
+                        + "  >= 1 - turns on outgoing event logging\n"
+                        + "  >= 2 - turns on poll notification",
                     HandleDebugEq);
             }
             else
@@ -226,16 +227,6 @@ namespace OpenSim.Region.ClientStack.Linden
 
         #endregion
 
-        private void OnNewClient(IClientAPI client)
-        {
-            //client.OnLogout += ClientClosed;
-        }
-
-//        private void ClientClosed(IClientAPI client)
-//        {
-//            ClientClosed(client.AgentId);
-//        }
-
         private void ClientClosed(UUID agentID, Scene scene)
         {
 //            m_log.DebugFormat("[EVENTQUEUE]: Closed client {0} in region {1}", agentID, m_scene.RegionInfo.RegionName);
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/Tests/EventQueueTests.cs b/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/Tests/EventQueueTests.cs
index cd70410..d604cf6 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/Tests/EventQueueTests.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/Tests/EventQueueTests.cs
@@ -94,7 +94,7 @@ namespace OpenSim.Region.ClientStack.Linden.Tests
             UUID spId = TestHelpers.ParseTail(0x1);
 
             SceneHelpers.AddScenePresence(m_scene, spId);
-            m_scene.IncomingCloseAgent(spId);
+            m_scene.IncomingCloseAgent(spId, false);
 
             // TODO: Add more assertions for the other aspects of event queues
             Assert.That(MainServer.Instance.GetPollServiceHandlerKeys().Count, Is.EqualTo(0));
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/RegionConsoleModule.cs b/OpenSim/Region/ClientStack/Linden/Caps/RegionConsoleModule.cs
index 0a5ad0f..fcac182 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/RegionConsoleModule.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/RegionConsoleModule.cs
@@ -109,7 +109,7 @@ namespace OpenSim.Region.ClientStack.Linden
 
             UUID capID = UUID.Random();
 
-            m_log.DebugFormat("[REGION CONSOLE]: /CAPS/{0} in region {1}", capID, m_scene.RegionInfo.RegionName);
+//            m_log.DebugFormat("[REGION CONSOLE]: /CAPS/{0} in region {1}", capID, m_scene.RegionInfo.RegionName);
             caps.RegisterHandler(
                     "SimConsoleAsync",
                     new ConsoleHandler("/CAPS/" + capID + "/", "SimConsoleAsync", agentID, this, m_scene));
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/IncomingPacket.cs b/OpenSim/Region/ClientStack/Linden/UDP/IncomingPacket.cs
index 1b8535c..e22670b 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/IncomingPacket.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/IncomingPacket.cs
@@ -45,7 +45,12 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         public Packet Packet;
 
         /// <summary>
-        /// Default constructor
+        /// No arg constructor.
+        /// </summary>
+        public IncomingPacket() {}
+
+        /// <summary>
+        /// Constructor
         /// </summary>
         /// <param name="client">Reference to the client this packet came from</param>
         /// <param name="packet">Packet data</param>
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
index ee28914..1f6af4a 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
@@ -47,6 +47,7 @@ using OpenSim.Region.Framework.Scenes;
 using OpenSim.Services.Interfaces;
 using Timer = System.Timers.Timer;
 using AssetLandmark = OpenSim.Framework.AssetLandmark;
+using RegionFlags = OpenMetaverse.RegionFlags;
 using Nini.Config;
 
 using System.IO;
@@ -354,7 +355,17 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         private bool m_deliverPackets = true;
         private int m_animationSequenceNumber = 1;
         private bool m_SendLogoutPacketWhenClosing = true;
-        private AgentUpdateArgs lastarg;
+
+        /// <summary>
+        /// We retain a single AgentUpdateArgs so that we can constantly reuse it rather than construct a new one for
+        /// every single incoming AgentUpdate.  Every client sends 10 AgentUpdate UDP messages per second, even if it
+        /// is doing absolutely nothing.
+        /// </summary>
+        /// <remarks>
+        /// This does mean that agent updates must be processed synchronously, at least for each client, and called methods
+        /// cannot retain a reference to it outside of that method.
+        /// </remarks>
+        private AgentUpdateArgs m_lastAgentUpdateArgs;
 
         protected Dictionary<PacketType, PacketProcessor> m_packetHandlers = new Dictionary<PacketType, PacketProcessor>();
         protected Dictionary<string, GenericMessage> m_genericPacketHandlers = new Dictionary<string, GenericMessage>(); //PauPaw:Local Generic Message handlers
@@ -509,19 +520,18 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         /// </summary>
         public void Close()
         {
-            Close(true);
+            Close(true, false);
         }
 
-        /// <summary>
-        /// Shut down the client view
-        /// </summary>
-        public void Close(bool sendStop)
+        public void Close(bool sendStop, bool force)
         {
             // We lock here to prevent race conditions between two threads calling close simultaneously (e.g.
             // a simultaneous relog just as a client is being closed out due to no packet ack from the old connection.
             lock (CloseSyncLock)
             {
-                if (!IsActive)
+                // We still perform a force close inside the sync lock since this is intended to attempt close where
+                // there is some unidentified connection problem, not where we have issues due to deadlock
+                if (!IsActive && !force)
                     return;
 
                 IsActive = false;
@@ -836,8 +846,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             OutPacket(mov, ThrottleOutPacketType.Unknown);
         }
 
-        public void SendChatMessage(string message, byte type, Vector3 fromPos, string fromName,
-                                    UUID fromAgentID, byte source, byte audible)
+        public void SendChatMessage(
+            string message, byte type, Vector3 fromPos, string fromName,
+            UUID fromAgentID, UUID ownerID, byte source, byte audible)
         {
             ChatFromSimulatorPacket reply = (ChatFromSimulatorPacket)PacketPool.Instance.GetPacket(PacketType.ChatFromSimulator);
             reply.ChatData.Audible = audible;
@@ -846,7 +857,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             reply.ChatData.SourceType = source;
             reply.ChatData.Position = fromPos;
             reply.ChatData.FromName = Util.StringToBytes256(fromName);
-            reply.ChatData.OwnerID = fromAgentID;
+            reply.ChatData.OwnerID = ownerID;
             reply.ChatData.SourceID = fromAgentID;
 
             OutPacket(reply, ThrottleOutPacketType.Unknown);
@@ -3984,7 +3995,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             {
                 List<ImprovedTerseObjectUpdatePacket.ObjectDataBlock> blocks = terseAgentUpdateBlocks.Value;
 
-                ImprovedTerseObjectUpdatePacket packet = new ImprovedTerseObjectUpdatePacket();
+                ImprovedTerseObjectUpdatePacket packet
+                    = (ImprovedTerseObjectUpdatePacket)PacketPool.Instance.GetPacket(PacketType.ImprovedTerseObjectUpdate);
                 packet.RegionData.RegionHandle = m_scene.RegionInfo.RegionHandle;
                 packet.RegionData.TimeDilation = timeDilation;
                 packet.ObjectData = new ImprovedTerseObjectUpdatePacket.ObjectDataBlock[blocks.Count];
@@ -4029,7 +4041,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             {
                 List<ImprovedTerseObjectUpdatePacket.ObjectDataBlock> blocks = terseUpdateBlocks.Value;
     
-                ImprovedTerseObjectUpdatePacket packet = new ImprovedTerseObjectUpdatePacket();
+                ImprovedTerseObjectUpdatePacket packet
+                    = (ImprovedTerseObjectUpdatePacket)PacketPool.Instance.GetPacket(
+                        PacketType.ImprovedTerseObjectUpdate);
                 packet.RegionData.RegionHandle = m_scene.RegionInfo.RegionHandle;
                 packet.RegionData.TimeDilation = timeDilation;
                 packet.ObjectData = new ImprovedTerseObjectUpdatePacket.ObjectDataBlock[blocks.Count];
@@ -4037,7 +4051,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 for (int i = 0; i < blocks.Count; i++)
                     packet.ObjectData[i] = blocks[i];
     
-                OutPacket(packet, ThrottleOutPacketType.Task, true);
+                OutPacket(packet, ThrottleOutPacketType.Task, true, delegate(OutgoingPacket oPacket) { ResendPrimUpdates(terseUpdates.Value, oPacket); });
             }
 
             #endregion Packet Sending
@@ -4534,7 +4548,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                     {
                         returnblock[j] = new EstateOwnerMessagePacket.ParamListBlock();
                     }
-                    j = 0;
+                    j = 0; 
 
                     returnblock[j].Parameter = Utils.StringToBytes(estateID.ToString()); j++;
                     returnblock[j].Parameter = Utils.StringToBytes(((int)Constants.EstateAccessCodex.EstateBans).ToString()); j++;
@@ -5038,7 +5052,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             Utils.UInt16ToBytes(Utils.FloatToUInt16(angularVelocity.Y, -64.0f, 64.0f), data, pos); pos += 2;
             Utils.UInt16ToBytes(Utils.FloatToUInt16(angularVelocity.Z, -64.0f, 64.0f), data, pos); pos += 2;
 
-            ImprovedTerseObjectUpdatePacket.ObjectDataBlock block = new ImprovedTerseObjectUpdatePacket.ObjectDataBlock();
+            ImprovedTerseObjectUpdatePacket.ObjectDataBlock block
+                = PacketPool.Instance.GetDataBlock<ImprovedTerseObjectUpdatePacket.ObjectDataBlock>();
+            
             block.Data = data;
 
             if (textureEntry != null && textureEntry.Length > 0)
@@ -5288,14 +5304,18 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         protected virtual void RegisterLocalPacketHandlers()
         {
             AddLocalPacketHandler(PacketType.LogoutRequest, HandleLogout);
+
+            // If AgentUpdate is ever handled asynchronously, then we will also need to construct a new AgentUpdateArgs
+            // for each AgentUpdate packet.
             AddLocalPacketHandler(PacketType.AgentUpdate, HandleAgentUpdate, false);
+            
             AddLocalPacketHandler(PacketType.ViewerEffect, HandleViewerEffect, false);
             AddLocalPacketHandler(PacketType.AgentCachedTexture, HandleAgentTextureCached, false);
             AddLocalPacketHandler(PacketType.MultipleObjectUpdate, HandleMultipleObjUpdate, false);
             AddLocalPacketHandler(PacketType.MoneyTransferRequest, HandleMoneyTransferRequest, false);
             AddLocalPacketHandler(PacketType.ParcelBuy, HandleParcelBuyRequest, false);
-            AddLocalPacketHandler(PacketType.UUIDGroupNameRequest, HandleUUIDGroupNameRequest, false);
-            AddLocalPacketHandler(PacketType.ObjectGroup, HandleObjectGroupRequest, false);
+            AddLocalPacketHandler(PacketType.UUIDGroupNameRequest, HandleUUIDGroupNameRequest);
+            AddLocalPacketHandler(PacketType.ObjectGroup, HandleObjectGroupRequest);
             AddLocalPacketHandler(PacketType.GenericMessage, HandleGenericMessage);
             AddLocalPacketHandler(PacketType.AvatarPropertiesRequest, HandleAvatarPropertiesRequest);
             AddLocalPacketHandler(PacketType.ChatFromViewer, HandleChatFromViewer);
@@ -5517,81 +5537,84 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
         #region Scene/Avatar
 
-        private bool HandleAgentUpdate(IClientAPI sener, Packet Pack)
+        private bool HandleAgentUpdate(IClientAPI sener, Packet packet)
         {
             if (OnAgentUpdate != null)
             {
-                bool update = false;
-                AgentUpdatePacket agenUpdate = (AgentUpdatePacket)Pack;
+                AgentUpdatePacket agentUpdate = (AgentUpdatePacket)packet;
 
                 #region Packet Session and User Check
-                if (agenUpdate.AgentData.SessionID != SessionId || agenUpdate.AgentData.AgentID != AgentId)
+                if (agentUpdate.AgentData.SessionID != SessionId || agentUpdate.AgentData.AgentID != AgentId)
+                {
+                    PacketPool.Instance.ReturnPacket(packet);
                     return false;
+                }
                 #endregion
 
-                AgentUpdatePacket.AgentDataBlock x = agenUpdate.AgentData;
-
-                // We can only check when we have something to check
-                // against.
+                bool update = false;
+                AgentUpdatePacket.AgentDataBlock x = agentUpdate.AgentData;
 
-                if (lastarg != null)
+                if (m_lastAgentUpdateArgs != null)
                 {
+                    // These should be ordered from most-likely to
+                    // least likely to change. I've made an initial
+                    // guess at that.
                     update =
                        (
-                        (x.BodyRotation != lastarg.BodyRotation) ||
-                        (x.CameraAtAxis != lastarg.CameraAtAxis) ||
-                        (x.CameraCenter != lastarg.CameraCenter) ||
-                        (x.CameraLeftAxis != lastarg.CameraLeftAxis) ||
-                        (x.CameraUpAxis != lastarg.CameraUpAxis) ||
-                        (x.ControlFlags != lastarg.ControlFlags) ||
+                        (x.BodyRotation != m_lastAgentUpdateArgs.BodyRotation) ||
+                        (x.CameraAtAxis != m_lastAgentUpdateArgs.CameraAtAxis) ||
+                        (x.CameraCenter != m_lastAgentUpdateArgs.CameraCenter) ||
+                        (x.CameraLeftAxis != m_lastAgentUpdateArgs.CameraLeftAxis) ||
+                        (x.CameraUpAxis != m_lastAgentUpdateArgs.CameraUpAxis) ||
+                        (x.ControlFlags != m_lastAgentUpdateArgs.ControlFlags) ||
                         (x.ControlFlags != 0) ||
-                        (x.Far != lastarg.Far) ||
-                        (x.Flags != lastarg.Flags) ||
-                        (x.State != lastarg.State) ||
-                        (x.HeadRotation != lastarg.HeadRotation) ||
-                        (x.SessionID != lastarg.SessionID) ||
-                        (x.AgentID != lastarg.AgentID)
+                        (x.Far != m_lastAgentUpdateArgs.Far) ||
+                        (x.Flags != m_lastAgentUpdateArgs.Flags) ||
+                        (x.State != m_lastAgentUpdateArgs.State) ||
+                        (x.HeadRotation != m_lastAgentUpdateArgs.HeadRotation) ||
+                        (x.SessionID != m_lastAgentUpdateArgs.SessionID) ||
+                        (x.AgentID != m_lastAgentUpdateArgs.AgentID)
                        );
                 }
                 else
                 {
+                    m_lastAgentUpdateArgs = new AgentUpdateArgs();
                     update = true;
                 }
 
-                // These should be ordered from most-likely to
-                // least likely to change. I've made an initial
-                // guess at that.
-
                 if (update)
                 {
 //                    m_log.DebugFormat("[LLCLIENTVIEW]: Triggered AgentUpdate for {0}", sener.Name);
 
-                    AgentUpdateArgs arg = new AgentUpdateArgs();
-                    arg.AgentID = x.AgentID;
-                    arg.BodyRotation = x.BodyRotation;
-                    arg.CameraAtAxis = x.CameraAtAxis;
-                    arg.CameraCenter = x.CameraCenter;
-                    arg.CameraLeftAxis = x.CameraLeftAxis;
-                    arg.CameraUpAxis = x.CameraUpAxis;
-                    arg.ControlFlags = x.ControlFlags;
-                    arg.Far = x.Far;
-                    arg.Flags = x.Flags;
-                    arg.HeadRotation = x.HeadRotation;
-                    arg.SessionID = x.SessionID;
-                    arg.State = x.State;
+                    m_lastAgentUpdateArgs.AgentID = x.AgentID;
+                    m_lastAgentUpdateArgs.BodyRotation = x.BodyRotation;
+                    m_lastAgentUpdateArgs.CameraAtAxis = x.CameraAtAxis;
+                    m_lastAgentUpdateArgs.CameraCenter = x.CameraCenter;
+                    m_lastAgentUpdateArgs.CameraLeftAxis = x.CameraLeftAxis;
+                    m_lastAgentUpdateArgs.CameraUpAxis = x.CameraUpAxis;
+                    m_lastAgentUpdateArgs.ControlFlags = x.ControlFlags;
+                    m_lastAgentUpdateArgs.Far = x.Far;
+                    m_lastAgentUpdateArgs.Flags = x.Flags;
+                    m_lastAgentUpdateArgs.HeadRotation = x.HeadRotation;
+                    m_lastAgentUpdateArgs.SessionID = x.SessionID;
+                    m_lastAgentUpdateArgs.State = x.State;
+
                     UpdateAgent handlerAgentUpdate = OnAgentUpdate;
                     UpdateAgent handlerPreAgentUpdate = OnPreAgentUpdate;
-                    lastarg = arg; // save this set of arguments for nexttime
+
                     if (handlerPreAgentUpdate != null)
-                        OnPreAgentUpdate(this, arg);
+                        OnPreAgentUpdate(this, m_lastAgentUpdateArgs);
+
                     if (handlerAgentUpdate != null)
-                        OnAgentUpdate(this, arg);
+                        OnAgentUpdate(this, m_lastAgentUpdateArgs);
 
                     handlerAgentUpdate = null;
                     handlerPreAgentUpdate = null;
                 }
             }
 
+            PacketPool.Instance.ReturnPacket(packet);
+
             return true;
         }
 
@@ -5963,7 +5986,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                         msgpack.MessageBlock.ID,
                         msgpack.MessageBlock.Offline != 0 ? true : false,
                         msgpack.MessageBlock.Position,
-                        msgpack.MessageBlock.BinaryBucket);
+                        msgpack.MessageBlock.BinaryBucket,
+                        true);
 
                 handlerInstantMessage(this, im);
             }
@@ -9245,7 +9269,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             }
             #endregion
 
-            switch (Utils.BytesToString(messagePacket.MethodData.Method))
+            string method = Utils.BytesToString(messagePacket.MethodData.Method);
+
+            switch (method)
             {
                 case "getinfo":
                     if (((Scene)m_scene).Permissions.CanIssueEstateCommand(AgentId, false))
@@ -9561,7 +9587,17 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                     return true;
 
                 default:
-                    m_log.Error("EstateOwnerMessage: Unknown method requested\n" + messagePacket);
+                    m_log.WarnFormat(
+                        "[LLCLIENTVIEW]: EstateOwnerMessage: Unknown method {0} requested for {1} in {2}",
+                        method, Name, Scene.Name);
+
+                    for (int i = 0; i < messagePacket.ParamList.Length; i++)
+                    {
+                        EstateOwnerMessagePacket.ParamListBlock block = messagePacket.ParamList[i];
+                        string data = (string)Utils.BytesToString(block.Parameter);
+                        m_log.DebugFormat("[LLCLIENTVIEW]: Param {0}={1}", i, data);
+                    }
+
                     return true;
             }
 
@@ -11949,7 +11985,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                     logPacket = false;
                 
                 if (DebugPacketLevel <= 50
-                    & (packet.Type == PacketType.ImprovedTerseObjectUpdate || packet.Type == PacketType.ObjectUpdate))
+                    && (packet.Type == PacketType.ImprovedTerseObjectUpdate || packet.Type == PacketType.ObjectUpdate))
                     logPacket = false;
 
                 if (DebugPacketLevel <= 25 && packet.Type == PacketType.ObjectPropertiesFamily)
@@ -12023,8 +12059,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             if (!ProcessPacketMethod(packet))
                 m_log.Warn("[CLIENT]: unhandled packet " + packet.Type);
-
-            PacketPool.Instance.ReturnPacket(packet);
         }
 
         private static PrimitiveBaseShape GetShapeFromAddPacket(ObjectAddPacket addPacket)
@@ -12193,7 +12227,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         {
             Kick(reason);
             Thread.Sleep(1000);
-            Close();
+            Disconnect();
         }
 
         public void Disconnect()
@@ -12481,7 +12515,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 ushort timeDilation = Utils.FloatToUInt16(TIME_DILATION, 0.0f, 1.0f);
 
 
-                ImprovedTerseObjectUpdatePacket packet = new ImprovedTerseObjectUpdatePacket();
+                ImprovedTerseObjectUpdatePacket packet
+                    = (ImprovedTerseObjectUpdatePacket)PacketPool.Instance.GetPacket(
+                        PacketType.ImprovedTerseObjectUpdate);
+
                 packet.RegionData.RegionHandle = m_scene.RegionInfo.RegionHandle;
                 packet.RegionData.TimeDilation = timeDilation;
                 packet.ObjectData = new ImprovedTerseObjectUpdatePacket.ObjectDataBlock[1];
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
index d6513c5..b8951d9 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
@@ -37,6 +37,7 @@ using log4net;
 using Nini.Config;
 using OpenMetaverse.Packets;
 using OpenSim.Framework;
+using OpenSim.Framework.Console;
 using OpenSim.Framework.Monitoring;
 using OpenSim.Region.Framework.Scenes;
 using OpenMetaverse;
@@ -100,9 +101,11 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
         /// <summary>The measured resolution of Environment.TickCount</summary>
         public readonly float TickCountResolution;
+
         /// <summary>Number of prim updates to put on the queue each time the 
         /// OnQueueEmpty event is triggered for updates</summary>
         public readonly int PrimUpdatesPerCallback;
+
         /// <summary>Number of texture packets to put on the queue each time the
         /// OnQueueEmpty event is triggered for textures</summary>
         public readonly int TextureSendLimit;
@@ -124,28 +127,37 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         
         /// <summary>Manages authentication for agent circuits</summary>
         private AgentCircuitManager m_circuitManager;
+
         /// <summary>Reference to the scene this UDP server is attached to</summary>
         protected Scene m_scene;
+
         /// <summary>The X/Y coordinates of the scene this UDP server is attached to</summary>
         private Location m_location;
+
         /// <summary>The size of the receive buffer for the UDP socket. This value
         /// is passed up to the operating system and used in the system networking
         /// stack. Use zero to leave this value as the default</summary>
         private int m_recvBufferSize;
+
         /// <summary>Flag to process packets asynchronously or synchronously</summary>
         private bool m_asyncPacketHandling;
+
         /// <summary>Tracks whether or not a packet was sent each round so we know
         /// whether or not to sleep</summary>
         private bool m_packetSent;
 
         /// <summary>Environment.TickCount of the last time that packet stats were reported to the scene</summary>
         private int m_elapsedMSSinceLastStatReport = 0;
+
         /// <summary>Environment.TickCount of the last time the outgoing packet handler executed</summary>
         private int m_tickLastOutgoingPacketHandler;
+
         /// <summary>Keeps track of the number of elapsed milliseconds since the last time the outgoing packet handler looped</summary>
         private int m_elapsedMSOutgoingPacketHandler;
+
         /// <summary>Keeps track of the number of 100 millisecond periods elapsed in the outgoing packet handler executed</summary>
         private int m_elapsed100MSOutgoingPacketHandler;
+
         /// <summary>Keeps track of the number of 500 millisecond periods elapsed in the outgoing packet handler executed</summary>
         private int m_elapsed500MSOutgoingPacketHandler;
 
@@ -159,6 +171,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         protected bool m_sendPing;
 
         private ExpiringCache<IPEndPoint, Queue<UDPPacketBuffer>> m_pendingCache = new ExpiringCache<IPEndPoint, Queue<UDPPacketBuffer>>();
+        private Pool<IncomingPacket> m_incomingPacketPool;
+
+        private Stat m_incomingPacketPoolStat;
 
         private int m_defaultRTO = 0;
         private int m_maxRTO = 0;
@@ -180,7 +195,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         /// </summary>
         private IClientAPI m_currentIncomingClient;
 
-        public LLUDPServer(IPAddress listenIP, ref uint port, int proxyPortOffsetParm, bool allow_alternate_port, IConfigSource configSource, AgentCircuitManager circuitManager)
+        public LLUDPServer(
+            IPAddress listenIP, ref uint port, int proxyPortOffsetParm, bool allow_alternate_port,
+            IConfigSource configSource, AgentCircuitManager circuitManager)
             : base(listenIP, (int)port)
         {
             #region Environment.TickCount Measurement
@@ -202,6 +219,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             m_circuitManager = circuitManager;
             int sceneThrottleBps = 0;
+            bool usePools = false;
 
             IConfig config = configSource.Configs["ClientStack.LindenUDP"];
             if (config != null)
@@ -227,6 +245,16 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 m_pausedAckTimeout = 1000 * 300; // 5 minutes
             }
 
+            // FIXME: This actually only needs to be done once since the PacketPool is shared across all servers.
+            // However, there is no harm in temporarily doing it multiple times.
+            IConfig packetConfig = configSource.Configs["PacketPool"];
+            if (packetConfig != null)
+            {
+                PacketPool.Instance.RecyclePackets = packetConfig.GetBoolean("RecyclePackets", true);
+                PacketPool.Instance.RecycleDataBlocks = packetConfig.GetBoolean("RecycleDataBlocks", true);
+                usePools = packetConfig.GetBoolean("RecycleBaseUDPPackets", usePools);
+            }
+
             #region BinaryStats
             config = configSource.Configs["Statistics.Binary"];
             m_shouldCollectStats = false;
@@ -254,20 +282,28 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             m_throttle = new TokenBucket(null, sceneThrottleBps);
             ThrottleRates = new ThrottleRates(configSource);
+
+            if (usePools)
+                EnablePools();
         }
 
         public void Start()
         {
-            if (m_scene == null)
-                throw new InvalidOperationException("[LLUDPSERVER]: Cannot LLUDPServer.Start() without an IScene reference");
+            StartInbound();
+            StartOutbound();
 
+            m_elapsedMSSinceLastStatReport = Environment.TickCount;
+        }
+
+        private void StartInbound()
+        {
             m_log.InfoFormat(
-                "[LLUDPSERVER]: Starting the LLUDP server in {0} mode",
-                m_asyncPacketHandling ? "asynchronous" : "synchronous");
+                "[LLUDPSERVER]: Starting inbound packet processing for the LLUDP server in {0} mode with UsePools = {1}",
+                m_asyncPacketHandling ? "asynchronous" : "synchronous", UsePools);
 
-            base.Start(m_recvBufferSize, m_asyncPacketHandling);
+            base.StartInbound(m_recvBufferSize, m_asyncPacketHandling);
 
-            // Start the packet processing threads
+            // This thread will process the packets received that are placed on the packetInbox
             Watchdog.StartThread(
                 IncomingPacketHandler,
                 string.Format("Incoming Packets ({0})", m_scene.RegionInfo.RegionName),
@@ -276,6 +312,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 true,
                 GetWatchdogIncomingAlarmData,
                 Watchdog.DEFAULT_WATCHDOG_TIMEOUT_MS);
+        }
+
+        private new void StartOutbound()
+        {
+            m_log.Info("[LLUDPSERVER]: Starting outbound packet processing for the LLUDP server");
+
+            base.StartOutbound();
 
             Watchdog.StartThread(
                 OutgoingPacketHandler,
@@ -285,8 +328,57 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 true,
                 GetWatchdogOutgoingAlarmData,
                 Watchdog.DEFAULT_WATCHDOG_TIMEOUT_MS);
+        }
 
-            m_elapsedMSSinceLastStatReport = Environment.TickCount;
+        public void Stop()
+        {
+            m_log.Info("[LLUDPSERVER]: Shutting down the LLUDP server for " + m_scene.RegionInfo.RegionName);
+            base.StopOutbound();
+            base.StopInbound();
+        }
+
+        protected override bool EnablePools()
+        {
+            if (!UsePools)
+            {
+                base.EnablePools();
+
+                m_incomingPacketPool = new Pool<IncomingPacket>(() => new IncomingPacket(), 500);
+
+                m_incomingPacketPoolStat
+                    = new Stat(
+                        "IncomingPacketPoolCount",
+                        "Objects within incoming packet pool",
+                        "The number of objects currently stored within the incoming packet pool",
+                        "",
+                        "clientstack",
+                        "packetpool",
+                        StatType.Pull,
+                        stat => stat.Value = m_incomingPacketPool.Count,
+                        StatVerbosity.Debug);
+
+                StatsManager.RegisterStat(m_incomingPacketPoolStat);
+
+                return true;
+            }
+
+            return false;
+        }
+
+        protected override bool DisablePools()
+        {
+            if (UsePools)
+            {
+                base.DisablePools();
+
+                StatsManager.DeregisterStat(m_incomingPacketPoolStat);
+
+                // We won't null out the pool to avoid a race condition with code that may be in the middle of using it.
+
+                return true;
+            }
+
+            return false;
         }
 
         /// <summary>
@@ -311,12 +403,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 m_currentOutgoingClient != null ? m_currentOutgoingClient.Name : "none");
         }
 
-        public new void Stop()
-        {
-            m_log.Info("[LLUDPSERVER]: Shutting down the LLUDP server for " + m_scene.RegionInfo.RegionName);
-            base.Stop();
-        }
-
         public void AddScene(IScene scene)
         {
             if (m_scene != null)
@@ -333,6 +419,117 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             m_scene = (Scene)scene;
             m_location = new Location(m_scene.RegionInfo.RegionHandle);
+
+            MainConsole.Instance.Commands.AddCommand(
+                "Debug",
+                false,
+                "debug lludp start",
+                "debug lludp start <in|out|all>",
+                "Control LLUDP packet processing.",
+                "No effect if packet processing has already started.\n"
+                    + "in  - start inbound processing.\n"
+                    + "out - start outbound processing.\n"
+                    + "all - start in and outbound processing.\n",
+                HandleStartCommand);
+
+            MainConsole.Instance.Commands.AddCommand(
+                "Debug",
+                false,
+                "debug lludp stop",
+                "debug lludp stop <in|out|all>",
+                "Stop LLUDP packet processing.",
+                "No effect if packet processing has already stopped.\n"
+                    + "in  - stop inbound processing.\n"
+                    + "out - stop outbound processing.\n"
+                    + "all - stop in and outbound processing.\n",
+                HandleStopCommand);
+
+            MainConsole.Instance.Commands.AddCommand(
+                "Debug",
+                false,
+                "debug lludp pool",
+                "debug lludp pool <on|off>",
+                "Turn object pooling within the lludp component on or off.",
+                HandlePoolCommand);
+
+            MainConsole.Instance.Commands.AddCommand(
+                "Debug",
+                false,
+                "debug lludp status",
+                "debug lludp status",
+                "Return status of LLUDP packet processing.",
+                HandleStatusCommand);
+        }
+
+        private void HandleStartCommand(string module, string[] args)
+        {
+            if (args.Length != 4)
+            {
+                MainConsole.Instance.Output("Usage: debug lludp start <in|out|all>");
+                return;
+            }
+
+            string subCommand = args[3];
+
+            if (subCommand == "in" || subCommand == "all")
+                StartInbound();
+
+            if (subCommand == "out" || subCommand == "all")
+                StartOutbound();
+        }
+
+        private void HandleStopCommand(string module, string[] args)
+        {
+            if (args.Length != 4)
+            {
+                MainConsole.Instance.Output("Usage: debug lludp stop <in|out|all>");
+                return;
+            }
+
+            string subCommand = args[3];
+
+            if (subCommand == "in" || subCommand == "all")
+                StopInbound();
+
+            if (subCommand == "out" || subCommand == "all")
+                StopOutbound();
+        }
+
+        private void HandlePoolCommand(string module, string[] args)
+        {
+            if (args.Length != 4)
+            {
+                MainConsole.Instance.Output("Usage: debug lludp pool <on|off>");
+                return;
+            }
+
+            string enabled = args[3];
+
+            if (enabled == "on")
+            {
+                if (EnablePools())
+                    MainConsole.Instance.OutputFormat("Packet pools enabled on {0}", m_scene.Name);
+            }
+            else if (enabled == "off")
+            {
+                if (DisablePools())
+                    MainConsole.Instance.OutputFormat("Packet pools disabled on {0}", m_scene.Name);
+            }
+            else
+            {
+                MainConsole.Instance.Output("Usage: debug lludp pool <on|off>");
+            }
+        }
+
+        private void HandleStatusCommand(string module, string[] args)
+        {
+            MainConsole.Instance.OutputFormat(
+                "IN  LLUDP packet processing for {0} is {1}", m_scene.Name, IsRunningInbound ? "enabled" : "disabled");
+
+            MainConsole.Instance.OutputFormat(
+                "OUT LLUDP packet processing for {0} is {1}", m_scene.Name, IsRunningOutbound ? "enabled" : "disabled");
+
+            MainConsole.Instance.OutputFormat("LLUDP pools in {0} are {1}", m_scene.Name, UsePools ? "on" : "off");
         }
 
         public bool HandlesRegion(Location x)
@@ -416,6 +613,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 byte[] data = packet.ToBytes();
                 SendPacketData(udpClient, data, packet.Type, category, method);
             }
+
+            PacketPool.Instance.ReturnPacket(packet);
         }
 
         /// <summary>
@@ -700,7 +899,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             LLUDPClient udpClient = null;
             Packet packet = null;
             int packetEnd = buffer.DataLength - 1;
-            IPEndPoint address = (IPEndPoint)buffer.RemoteEndPoint;
+            IPEndPoint endPoint = (IPEndPoint)buffer.RemoteEndPoint;
 
             #region Decoding
 
@@ -710,7 +909,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 //                    "[LLUDPSERVER]: Dropping undersized packet with {0} bytes received from {1} in {2}",
 //                    buffer.DataLength, buffer.RemoteEndPoint, m_scene.RegionInfo.RegionName);
 
-                return; // Drop undersizd packet
+                return; // Drop undersized packet
             }
 
             int headerLen = 7;
@@ -733,7 +932,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             try
             {
-                packet = Packet.BuildPacket(buffer.Data, ref packetEnd,
+//                packet = Packet.BuildPacket(buffer.Data, ref packetEnd,
+//                    // Only allocate a buffer for zerodecoding if the packet is zerocoded
+//                    ((buffer.Data[0] & Helpers.MSG_ZEROCODED) != 0) ? new byte[4096] : null);
+                // If OpenSimUDPBase.UsePool == true (which is currently separate from the PacketPool) then we
+                // assume that packet construction does not retain a reference to byte[] buffer.Data (instead, all
+                // bytes are copied out).
+                packet = PacketPool.Instance.GetPacket(buffer.Data, ref packetEnd,
                     // Only allocate a buffer for zerodecoding if the packet is zerocoded
                     ((buffer.Data[0] & Helpers.MSG_ZEROCODED) != 0) ? new byte[4096] : null);
             }
@@ -748,11 +953,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
                 return; // Drop short packet
             }
-            catch(Exception e)
+            catch (Exception e)
             {
                 if (m_malformedCount < 100)
                     m_log.DebugFormat("[LLUDPSERVER]: Dropped malformed packet: " + e.ToString());
+
                 m_malformedCount++;
+
                 if ((m_malformedCount % 100000) == 0)
                     m_log.DebugFormat("[LLUDPSERVER]: Received {0} malformed packets so far, probable network attack.", m_malformedCount);
             }
@@ -772,7 +979,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             // If there is already a client for this endpoint, don't process UseCircuitCode
             IClientAPI client = null;
-            if (!m_scene.TryGetClient(address, out client))
+            if (!m_scene.TryGetClient(endPoint, out client) || !(client is LLClientView))
             {
                 // UseCircuitCode handling
                 if (packet.Type == PacketType.UseCircuitCode)
@@ -780,13 +987,15 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                     // And if there is a UseCircuitCode pending, also drop it
                     lock (m_pendingCache)
                     {
-                        if (m_pendingCache.Contains(address))
+                        if (m_pendingCache.Contains(endPoint))
                             return;
 
-                        m_pendingCache.AddOrUpdate(address, new Queue<UDPPacketBuffer>(), 60);
+                        m_pendingCache.AddOrUpdate(endPoint, new Queue<UDPPacketBuffer>(), 60);
                     }
 
-                    object[] array = new object[] { buffer, packet };
+                    // We need to copy the endpoint so that it doesn't get changed when another thread reuses the
+                    // buffer.
+                    object[] array = new object[] { new IPEndPoint(endPoint.Address, endPoint.Port), packet };
 
                     Util.FireAndForget(HandleUseCircuitCode, array);
 
@@ -798,7 +1007,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             lock (m_pendingCache)
             {
                 Queue<UDPPacketBuffer> queue;
-                if (m_pendingCache.TryGetValue(address, out queue))
+                if (m_pendingCache.TryGetValue(endPoint, out queue))
                 {
                     //m_log.DebugFormat("[LLUDPSERVER]: Enqueued a {0} packet into the pending queue", packet.Type);
                     queue.Enqueue(buffer);
@@ -834,6 +1043,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             // Handle appended ACKs
             if (packet.Header.AppendedAcks && packet.Header.AckList != null)
             {
+//                m_log.DebugFormat(
+//                    "[LLUDPSERVER]: Handling {0} appended acks from {1} in {2}",
+//                    packet.Header.AckList.Length, client.Name, m_scene.Name);
+
                 for (int i = 0; i < packet.Header.AckList.Length; i++)
                     udpClient.NeedAcks.Acknowledge(packet.Header.AckList[i], now, packet.Header.Resent);
             }
@@ -843,6 +1056,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             {
                 PacketAckPacket ackPacket = (PacketAckPacket)packet;
 
+//                m_log.DebugFormat(
+//                    "[LLUDPSERVER]: Handling {0} packet acks for {1} in {2}",
+//                    ackPacket.Packets.Length, client.Name, m_scene.Name);
+
                 for (int i = 0; i < ackPacket.Packets.Length; i++)
                     udpClient.NeedAcks.Acknowledge(ackPacket.Packets[i].ID, now, packet.Header.Resent);
 
@@ -856,6 +1073,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             if (packet.Header.Reliable)
             {
+//                m_log.DebugFormat(
+//                    "[LLUDPSERVER]: Adding ack request for {0} {1} from {2} in {3}",
+//                    packet.Type, packet.Header.Sequence, client.Name, m_scene.Name);
+
                 udpClient.PendingAcks.Enqueue(packet.Header.Sequence);
 
                 // This is a somewhat odd sequence of steps to pull the client.BytesSinceLastACK value out,
@@ -902,6 +1123,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             if (packet.Type == PacketType.StartPingCheck)
             {
+//                m_log.DebugFormat("[LLUDPSERVER]: Handling ping from {0} in {1}", client.Name, m_scene.Name);
+
                 // We don't need to do anything else with ping checks
                 StartPingCheckPacket startPing = (StartPingCheckPacket)packet;
                 CompletePing(udpClient, startPing.PingID.PingID);
@@ -921,13 +1144,25 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             #endregion Ping Check Handling
 
+            IncomingPacket incomingPacket;
+
             // Inbox insertion
-            if (packet.Type == PacketType.AgentUpdate ||
-                packet.Type == PacketType.ChatFromViewer)
-                packetInbox.EnqueueHigh(new IncomingPacket((LLClientView)client, packet));
+            if (UsePools)
+            {
+                incomingPacket = m_incomingPacketPool.GetObject();
+                incomingPacket.Client = (LLClientView)client;
+                incomingPacket.Packet = packet;
+            }
+            else
+            {
+                incomingPacket = new IncomingPacket((LLClientView)client, packet);
+            }
+
+            if (incomingPacket.Packet.Type == PacketType.AgentUpdate ||
+                incomingPacket.Packet.Type == PacketType.ChatFromViewer)
+                packetInbox.EnqueueHigh(incomingPacket);
             else
-                packetInbox.EnqueueLow(new IncomingPacket((LLClientView)client, packet));
-//            packetInbox.Enqueue(new IncomingPacket((LLClientView)client, packet));
+                packetInbox.EnqueueLow(incomingPacket);
         }
 
         #region BinaryStats
@@ -1013,21 +1248,19 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
         private void HandleUseCircuitCode(object o)
         {
-            IPEndPoint remoteEndPoint = null;
+            IPEndPoint endPoint = null;
             IClientAPI client = null;
 
             try
             {
     //            DateTime startTime = DateTime.Now;
                 object[] array = (object[])o;
-                UDPPacketBuffer buffer = (UDPPacketBuffer)array[0];
+                endPoint = (IPEndPoint)array[0];
                 UseCircuitCodePacket uccp = (UseCircuitCodePacket)array[1];
 
                 m_log.DebugFormat(
                     "[LLUDPSERVER]: Handling UseCircuitCode request for circuit {0} to {1} from IP {2}",
-                    uccp.CircuitCode.Code, m_scene.RegionInfo.RegionName, buffer.RemoteEndPoint);
-    
-                remoteEndPoint = (IPEndPoint)buffer.RemoteEndPoint;
+                    uccp.CircuitCode.Code, m_scene.RegionInfo.RegionName, endPoint);
     
                 AuthenticateResponse sessionInfo;
                 if (IsClientAuthorized(uccp, out sessionInfo))
@@ -1038,13 +1271,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                             uccp.CircuitCode.Code,
                             uccp.CircuitCode.ID,
                             uccp.CircuitCode.SessionID,
-                            remoteEndPoint,
+                            endPoint,
                             sessionInfo);
             
                     // Send ack straight away to let the viewer know that the connection is active.
                     // The client will be null if it already exists (e.g. if on a region crossing the client sends a use
                     // circuit code to the existing child agent.  This is not particularly obvious.
-                    SendAckImmediate(remoteEndPoint, uccp.Header.Sequence);
+                    SendAckImmediate(endPoint, uccp.Header.Sequence);
             
                     // We only want to send initial data to new clients, not ones which are being converted from child to root.
                     if (client != null)
@@ -1058,12 +1291,12 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
                     lock (m_pendingCache)
                     {
-                        if (!m_pendingCache.TryGetValue(remoteEndPoint, out queue))
+                        if (!m_pendingCache.TryGetValue(endPoint, out queue))
                         {
                             m_log.DebugFormat("[LLUDPSERVER]: Client created but no pending queue present");
                             return;
                         }
-                        m_pendingCache.Remove(remoteEndPoint);
+                        m_pendingCache.Remove(endPoint);
                     }
 
                     m_log.DebugFormat("[LLUDPSERVER]: Client created, processing pending queue, {0} entries", queue.Count);
@@ -1081,9 +1314,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                     // Don't create clients for unauthorized requesters.
                     m_log.WarnFormat(
                         "[LLUDPSERVER]: Ignoring connection request for {0} to {1} with unknown circuit code {2} from IP {3}",
-                        uccp.CircuitCode.ID, m_scene.RegionInfo.RegionName, uccp.CircuitCode.Code, remoteEndPoint);
+                        uccp.CircuitCode.ID, m_scene.RegionInfo.RegionName, uccp.CircuitCode.Code, endPoint);
                     lock (m_pendingCache)
-                        m_pendingCache.Remove(remoteEndPoint);
+                        m_pendingCache.Remove(endPoint);
                 }
     
                 //            m_log.DebugFormat(
@@ -1095,7 +1328,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             {
                 m_log.ErrorFormat(
                     "[LLUDPSERVER]: UseCircuitCode handling from endpoint {0}, client {1} {2} failed.  Exception {3}{4}",
-                    remoteEndPoint != null ? remoteEndPoint.ToString() : "n/a",
+                    endPoint != null ? endPoint.ToString() : "n/a",
                     client != null ? client.Name : "unknown",
                     client != null ? client.AgentId.ToString() : "unknown",
                     e.Message,
@@ -1160,20 +1393,20 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         {
             IClientAPI client = null;
 
-            // In priciple there shouldn't be more than one thread here, ever.
-            // But in case that happens, we need to synchronize this piece of code
-            // because it's too important
-            lock (this) 
+            // We currently synchronize this code across the whole scene to avoid issues such as
+            // http://opensimulator.org/mantis/view.php?id=5365  However, once locking per agent circuit can be done
+            // consistently, this lock could probably be removed.
+            lock (this)
             {
                 if (!m_scene.TryGetClient(agentID, out client))
                 {
                     LLUDPClient udpClient = new LLUDPClient(this, ThrottleRates, m_throttle, circuitCode, agentID, remoteEndPoint, m_defaultRTO, m_maxRTO);
-
+    
                     client = new LLClientView(m_scene, this, udpClient, sessionInfo, agentID, sessionID, circuitCode);
                     client.OnLogout += LogoutHandler;
-
+    
                     ((LLClientView)client).DisableFacelights = m_disableFacelights;
-
+    
                     client.Start();
                 }
             }
@@ -1212,7 +1445,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             // on to en-US to avoid number parsing issues
             Culture.SetCurrentCulture();
 
-            while (base.IsRunning)
+            while (IsRunningInbound)
             {
                 m_scene.ThreadAlive(1);
                 try
@@ -1228,7 +1461,12 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                     }
 
                     if (packetInbox.Dequeue(100, ref incomingPacket))
+                    {
                         ProcessInPacket(incomingPacket);//, incomingPacket); Util.FireAndForget(ProcessInPacket, incomingPacket);
+
+                        if (UsePools)
+                            m_incomingPacketPool.ReturnObject(incomingPacket);
+                    }
                 }
                 catch (Exception ex)
                 {
@@ -1255,7 +1493,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             // Action generic every round
             Action<IClientAPI> clientPacketHandler = ClientOutgoingPacketHandler;
 
-            while (base.IsRunning)
+            while (base.IsRunningOutbound)
             {
                 m_scene.ThreadAlive(2);
                 try
@@ -1523,7 +1761,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             if (!client.IsLoggingOut)
             {
                 client.IsLoggingOut = true;
-                client.Close(false);
+                client.Close(false, false);
             }
         }
     }
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs b/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
index cfe7c9d..8bd3461 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
@@ -30,6 +30,8 @@ using System.Net;
 using System.Net.Sockets;
 using System.Threading;
 using log4net;
+using OpenSim.Framework;
+using OpenSim.Framework.Monitoring;
 
 namespace OpenMetaverse
 {
@@ -58,17 +60,31 @@ namespace OpenMetaverse
         /// <summary>Flag to process packets asynchronously or synchronously</summary>
         private bool m_asyncPacketHandling;
 
-        /// <summary>The all important shutdown flag</summary>
-        private volatile bool m_shutdownFlag = true;
+        /// <summary>
+        /// Pool to use for handling data.  May be null if UsePools = false;
+        /// </summary>
+        protected OpenSim.Framework.Pool<UDPPacketBuffer> m_pool;
+
+        /// <summary>
+        /// Are we to use object pool(s) to reduce memory churn when receiving data?
+        /// </summary>
+        public bool UsePools { get; protected set; }
+
+        /// <summary>Returns true if the server is currently listening for inbound packets, otherwise false</summary>
+        public bool IsRunningInbound { get; private set; }
 
-        /// <summary>Returns true if the server is currently listening, otherwise false</summary>
-        public bool IsRunning { get { return !m_shutdownFlag; } }
+        /// <summary>Returns true if the server is currently sending outbound packets, otherwise false</summary>
+        /// <remarks>If IsRunningOut = false, then any request to send a packet is simply dropped.</remarks>
+        public bool IsRunningOutbound { get; private set; }
+
+        private Stat m_poolCountStat;
 
         /// <summary>
         /// Default constructor
         /// </summary>
         /// <param name="bindAddress">Local IP address to bind the server to</param>
         /// <param name="port">Port to listening for incoming UDP packets on</param>
+        /// /// <param name="usePool">Are we to use an object pool to get objects for handing inbound data?</param>
         public OpenSimUDPBase(IPAddress bindAddress, int port)
         {
             m_localBindAddress = bindAddress;
@@ -76,7 +92,7 @@ namespace OpenMetaverse
         }
 
         /// <summary>
-        /// Start the UDP server
+        /// Start inbound UDP packet handling.
         /// </summary>
         /// <param name="recvBufferSize">The size of the receive buffer for 
         /// the UDP socket. This value is passed up to the operating system 
@@ -91,11 +107,11 @@ namespace OpenMetaverse
         /// manner (not throwing an exception when the remote side resets the
         /// connection). This call is ignored on Mono where the flag is not
         /// necessary</remarks>
-        public void Start(int recvBufferSize, bool asyncPacketHandling)
+        public void StartInbound(int recvBufferSize, bool asyncPacketHandling)
         {
             m_asyncPacketHandling = asyncPacketHandling;
 
-            if (m_shutdownFlag)
+            if (!IsRunningInbound)
             {
                 const int SIO_UDP_CONNRESET = -1744830452;
 
@@ -123,8 +139,7 @@ namespace OpenMetaverse
 
                 m_udpSocket.Bind(ipep);
 
-                // we're not shutting down, we're starting up
-                m_shutdownFlag = false;
+                IsRunningInbound = true;
 
                 // kick off an async receive.  The Start() method will return, the
                 // actual receives will occur asynchronously and will be caught in
@@ -134,28 +149,84 @@ namespace OpenMetaverse
         }
 
         /// <summary>
-        /// Stops the UDP server
+        /// Start outbound UDP packet handling.
         /// </summary>
-        public void Stop()
+        public void StartOutbound()
+        {
+            IsRunningOutbound = true;
+        }
+
+        public void StopInbound()
         {
-            if (!m_shutdownFlag)
+            if (IsRunningInbound)
             {
                 // wait indefinitely for a writer lock.  Once this is called, the .NET runtime
                 // will deny any more reader locks, in effect blocking all other send/receive
-                // threads.  Once we have the lock, we set shutdownFlag to inform the other
+                // threads.  Once we have the lock, we set IsRunningInbound = false to inform the other
                 // threads that the socket is closed.
-                m_shutdownFlag = true;
+                IsRunningInbound = false;
                 m_udpSocket.Close();
             }
         }
 
+        public void StopOutbound()
+        {
+            IsRunningOutbound = false;
+        }
+
+        protected virtual bool EnablePools()
+        {
+            if (!UsePools)
+            {
+                m_pool = new Pool<UDPPacketBuffer>(() => new UDPPacketBuffer(), 500);
+
+                m_poolCountStat
+                    = new Stat(
+                        "UDPPacketBufferPoolCount",
+                        "Objects within the UDPPacketBuffer pool",
+                        "The number of objects currently stored within the UDPPacketBuffer pool",
+                        "",
+                        "clientstack",
+                        "packetpool",
+                        StatType.Pull,
+                        stat => stat.Value = m_pool.Count,
+                        StatVerbosity.Debug);
+
+                StatsManager.RegisterStat(m_poolCountStat);
+
+                UsePools = true;
+
+                return true;
+            }
+
+            return false;
+        }
+
+        protected virtual bool DisablePools()
+        {
+            if (UsePools)
+            {
+                UsePools = false;
+                StatsManager.DeregisterStat(m_poolCountStat);
+
+                // We won't null out the pool to avoid a race condition with code that may be in the middle of using it.
+
+                return true;
+            }
+
+            return false;
+        }
+
         private void AsyncBeginReceive()
         {
-            // allocate a packet buffer
-            //WrappedObject<UDPPacketBuffer> wrappedBuffer = Pool.CheckOut();
-            UDPPacketBuffer buf = new UDPPacketBuffer();
+            UDPPacketBuffer buf;
+
+            if (UsePools)
+                buf = m_pool.GetObject();
+            else
+                buf = new UDPPacketBuffer();
 
-            if (!m_shutdownFlag)
+            if (IsRunningInbound)
             {
                 try
                 {
@@ -208,7 +279,7 @@ namespace OpenMetaverse
         {
             // Asynchronous receive operations will complete here through the call
             // to AsyncBeginReceive
-            if (!m_shutdownFlag)
+            if (IsRunningInbound)
             {
                 // Asynchronous mode will start another receive before the
                 // callback for this packet is even fired. Very parallel :-)
@@ -217,8 +288,6 @@ namespace OpenMetaverse
 
                 // get the buffer that was created in AsyncBeginReceive
                 // this is the received data
-                //WrappedObject<UDPPacketBuffer> wrappedBuffer = (WrappedObject<UDPPacketBuffer>)iar.AsyncState;
-                //UDPPacketBuffer buffer = wrappedBuffer.Instance;
                 UDPPacketBuffer buffer = (UDPPacketBuffer)iar.AsyncState;
 
                 try
@@ -235,7 +304,8 @@ namespace OpenMetaverse
                 catch (ObjectDisposedException) { }
                 finally
                 {
-                    //wrappedBuffer.Dispose();
+                    if (UsePools)
+                        m_pool.ReturnObject(buffer);
 
                     // Synchronous mode waits until the packet callback completes
                     // before starting the receive to fetch another packet
@@ -248,7 +318,7 @@ namespace OpenMetaverse
 
         public void AsyncBeginSend(UDPPacketBuffer buf)
         {
-            if (!m_shutdownFlag)
+            if (IsRunningOutbound)
             {
                 try
                 {
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs b/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs
new file mode 100644
index 0000000..9f22fb4
--- /dev/null
+++ b/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs
@@ -0,0 +1,316 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+using OpenMetaverse;
+using OpenMetaverse.Packets;
+using log4net;
+using OpenSim.Framework.Monitoring;
+
+namespace OpenSim.Region.ClientStack.LindenUDP
+{
+    public sealed class PacketPool
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        private static readonly PacketPool instance = new PacketPool();
+
+        private bool packetPoolEnabled = true;
+        private bool dataBlockPoolEnabled = true;
+
+        private PercentageStat m_packetsReusedStat = new PercentageStat(
+            "PacketsReused",
+            "Packets reused",
+            "Number of packets reused out of all requests to the packet pool",
+            "clientstack",
+            "packetpool",
+            StatType.Push,
+            null,
+            StatVerbosity.Debug);
+
+        private PercentageStat m_blocksReusedStat = new PercentageStat(
+            "PacketDataBlocksReused",
+            "Packet data blocks reused",
+            "Number of data blocks reused out of all requests to the packet pool",
+            "clientstack",
+            "packetpool",
+            StatType.Push,
+            null,
+            StatVerbosity.Debug);
+
+        /// <summary>
+        /// Pool of packets available for reuse.
+        /// </summary>
+        private readonly Dictionary<PacketType, Stack<Packet>> pool = new Dictionary<PacketType, Stack<Packet>>();
+
+        private static Dictionary<Type, Stack<Object>> DataBlocks = new Dictionary<Type, Stack<Object>>();
+
+        public static PacketPool Instance
+        {
+            get { return instance; }
+        }
+
+        public bool RecyclePackets
+        {
+            set { packetPoolEnabled = value; }
+            get { return packetPoolEnabled; }
+        }
+
+        public bool RecycleDataBlocks
+        {
+            set { dataBlockPoolEnabled = value; }
+            get { return dataBlockPoolEnabled; }
+        }
+
+        private PacketPool()
+        {
+            StatsManager.RegisterStat(m_packetsReusedStat);
+            StatsManager.RegisterStat(m_blocksReusedStat);
+
+            StatsManager.RegisterStat(
+                new Stat(
+                    "PacketsPoolCount",
+                    "Objects within the packet pool",
+                    "The number of objects currently stored within the packet pool",
+                    "",
+                    "clientstack",
+                    "packetpool",
+                    StatType.Pull,
+                    stat => { lock (pool) { stat.Value = pool.Count; } },
+                    StatVerbosity.Debug));
+
+            StatsManager.RegisterStat(
+                new Stat(
+                    "PacketDataBlocksPoolCount",
+                    "Objects within the packet data block pool",
+                    "The number of objects currently stored within the packet data block pool",
+                    "",
+                    "clientstack",
+                    "packetpool",
+                    StatType.Pull,
+                    stat => { lock (DataBlocks) { stat.Value = DataBlocks.Count; } },
+                    StatVerbosity.Debug));
+        }
+
+        /// <summary>
+        /// Gets a packet of the given type.
+        /// </summary>
+        /// <param name='type'></param>
+        /// <returns>Guaranteed to always return a packet, whether from the pool or newly constructed.</returns>
+        public Packet GetPacket(PacketType type)
+        {
+            m_packetsReusedStat.Consequent++;
+
+            Packet packet;
+
+            if (!packetPoolEnabled)
+                return Packet.BuildPacket(type);
+
+            lock (pool)
+            {
+                if (!pool.ContainsKey(type) || pool[type] == null || (pool[type]).Count == 0)
+                {
+//                    m_log.DebugFormat("[PACKETPOOL]: Building {0} packet", type);
+
+                    // Creating a new packet if we cannot reuse an old package
+                    packet = Packet.BuildPacket(type);
+                }
+                else
+                {
+//                    m_log.DebugFormat("[PACKETPOOL]: Pulling {0} packet", type);
+
+                    // Recycle old packages
+                    m_packetsReusedStat.Antecedent++;
+
+                    packet = pool[type].Pop();
+                }
+            }
+
+            return packet;
+        }
+
+        // private byte[] decoded_header = new byte[10];
+        private static PacketType GetType(byte[] bytes)
+        {
+            byte[] decoded_header = new byte[10 + 8];
+            ushort id;
+            PacketFrequency freq;
+
+            if ((bytes[0] & Helpers.MSG_ZEROCODED) != 0)
+            {
+                Helpers.ZeroDecode(bytes, 16, decoded_header);
+            }
+            else
+            {
+                Buffer.BlockCopy(bytes, 0, decoded_header, 0, 10);
+            }
+
+            if (decoded_header[6] == 0xFF)
+            {
+                if (decoded_header[7] == 0xFF)
+                {
+                    id = (ushort) ((decoded_header[8] << 8) + decoded_header[9]);
+                    freq = PacketFrequency.Low;
+                }
+                else
+                {
+                    id = decoded_header[7];
+                    freq = PacketFrequency.Medium;
+                }
+            }
+            else
+            {
+                id = decoded_header[6];
+                freq = PacketFrequency.High;
+            }
+
+            return Packet.GetType(id, freq);
+        }
+
+        public Packet GetPacket(byte[] bytes, ref int packetEnd, byte[] zeroBuffer)
+        {
+            PacketType type = GetType(bytes);
+
+//            Array.Clear(zeroBuffer, 0, zeroBuffer.Length);
+
+            int i = 0;
+            Packet packet = GetPacket(type);
+            if (packet == null)
+                m_log.WarnFormat("[PACKETPOOL]: Failed to get packet of type {0}", type);
+            else
+                packet.FromBytes(bytes, ref i, ref packetEnd, zeroBuffer);
+
+            return packet;
+        }
+
+        /// <summary>
+        /// Return a packet to the packet pool
+        /// </summary>
+        /// <param name="packet"></param>
+        public void ReturnPacket(Packet packet)
+        {
+            if (dataBlockPoolEnabled)
+            {
+                switch (packet.Type)
+                {
+                    case PacketType.ObjectUpdate:
+                        ObjectUpdatePacket oup = (ObjectUpdatePacket)packet;
+
+                        foreach (ObjectUpdatePacket.ObjectDataBlock oupod in oup.ObjectData)
+                            ReturnDataBlock<ObjectUpdatePacket.ObjectDataBlock>(oupod);
+
+                        oup.ObjectData = null;
+                        break;
+
+                    case PacketType.ImprovedTerseObjectUpdate:
+                        ImprovedTerseObjectUpdatePacket itoup = (ImprovedTerseObjectUpdatePacket)packet;
+
+                        foreach (ImprovedTerseObjectUpdatePacket.ObjectDataBlock itoupod in itoup.ObjectData)
+                            ReturnDataBlock<ImprovedTerseObjectUpdatePacket.ObjectDataBlock>(itoupod);
+
+                        itoup.ObjectData = null;
+                        break;
+                }
+            }
+
+            if (packetPoolEnabled)
+            {
+                switch (packet.Type)
+                {
+                    // List pooling packets here
+                    case PacketType.AgentUpdate:
+                    case PacketType.PacketAck:
+                    case PacketType.ObjectUpdate:
+                    case PacketType.ImprovedTerseObjectUpdate:
+                        lock (pool)
+                        {
+                            PacketType type = packet.Type;
+
+                            if (!pool.ContainsKey(type))
+                            {
+                                pool[type] = new Stack<Packet>();
+                            }
+
+                            if ((pool[type]).Count < 50)
+                            {
+//                                m_log.DebugFormat("[PACKETPOOL]: Pushing {0} packet", type);
+
+                                pool[type].Push(packet);
+                            }
+                        }
+                        break;
+                    
+                    // Other packets wont pool
+                    default:
+                        return;
+                }
+            }
+        }
+
+        public T GetDataBlock<T>() where T: new()
+        {
+            lock (DataBlocks)
+            {
+                m_blocksReusedStat.Consequent++;
+
+                Stack<Object> s;
+
+                if (DataBlocks.TryGetValue(typeof(T), out s))
+                {
+                    if (s.Count > 0)
+                    {
+                        m_blocksReusedStat.Antecedent++;
+                        return (T)s.Pop();
+                    }
+                }
+                else
+                {
+                    DataBlocks[typeof(T)] = new Stack<Object>();
+                }
+                
+                return new T();
+            }
+        }
+
+        public void ReturnDataBlock<T>(T block) where T: new()
+        {
+            if (block == null)
+                return;
+
+            lock (DataBlocks)
+            {
+                if (!DataBlocks.ContainsKey(typeof(T)))
+                    DataBlocks[typeof(T)] = new Stack<Object>();
+
+                if (DataBlocks[typeof(T)].Count < 50)
+                    DataBlocks[typeof(T)].Push(block);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/Tests/BasicCircuitTests.cs b/OpenSim/Region/ClientStack/Linden/UDP/Tests/BasicCircuitTests.cs
index 109a8e1..556df30 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/Tests/BasicCircuitTests.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/Tests/BasicCircuitTests.cs
@@ -43,7 +43,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP.Tests
     /// This will contain basic tests for the LindenUDP client stack
     /// </summary>
     [TestFixture]
-    public class BasicCircuitTests
+    public class BasicCircuitTests : OpenSimTestCase
     {
         private Scene m_scene;
         private TestLLUDPServer m_udpServer;
@@ -65,8 +65,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP.Tests
         }
 
         [SetUp]
-        public void SetUp()
+        public override void SetUp()
         {
+            base.SetUp();
             m_scene = new SceneHelpers().SetupScene();
         }
         
@@ -143,7 +144,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP.Tests
         public void TestAddClient()
         {
             TestHelpers.InMethod();
-//            XmlConfigurator.Configure();
+//            TestHelpers.EnableLogging();
 
             AddUdpServer();
 
diff --git a/OpenSim/Region/ClientStack/RegionApplicationBase.cs b/OpenSim/Region/ClientStack/RegionApplicationBase.cs
index 4672f8a..853b72d 100644
--- a/OpenSim/Region/ClientStack/RegionApplicationBase.cs
+++ b/OpenSim/Region/ClientStack/RegionApplicationBase.cs
@@ -76,7 +76,7 @@ namespace OpenSim.Region.ClientStack
 
         protected override void StartupSpecific()
         {
-            SceneManager = new SceneManager();
+            SceneManager = SceneManager.Instance;
             m_clientStackManager = CreateClientStackManager();
 
             Initialize();
diff --git a/OpenSim/Region/CoreModules/Agent/AssetTransaction/AgentAssetsTransactions.cs b/OpenSim/Region/CoreModules/Agent/AssetTransaction/AgentAssetsTransactions.cs
index 8a4fd8f..da1ff2e 100644
--- a/OpenSim/Region/CoreModules/Agent/AssetTransaction/AgentAssetsTransactions.cs
+++ b/OpenSim/Region/CoreModules/Agent/AssetTransaction/AgentAssetsTransactions.cs
@@ -57,39 +57,36 @@ namespace OpenSim.Region.CoreModules.Agent.AssetTransaction
         }
 
         /// <summary>
-        /// Return a xfer uploader if one does not already exist.
+        /// Return the xfer uploader for the given transaction.
         /// </summary>
+        /// <remarks>
+        /// If an uploader does not already exist for this transaction then it is created, otherwise the existing
+        /// uploader is returned.
+        /// </remarks>
         /// <param name="transactionID"></param>
-        /// <param name="assetID">
-        /// We must transfer the new asset ID into the uploader on creation, otherwise
-        /// we can see race conditions with other threads which can retrieve an item before it is updated with the new
-        /// asset id.
-        /// </param>
-        /// <returns>
-        /// The xfer uploader requested.  Null if one is already in existence.
-        /// FIXME: This is a bizarre thing to do, and is probably meant to signal an error condition if multiple
-        /// transfers are made.  Needs to be corrected.
-        /// </returns>
-        public AssetXferUploader RequestXferUploader(UUID transactionID, UUID assetID)
+        /// <returns>The asset xfer uploader</returns>
+        public AssetXferUploader RequestXferUploader(UUID transactionID)
         {
+            AssetXferUploader uploader;
+
             lock (XferUploaders)
             {
                 if (!XferUploaders.ContainsKey(transactionID))
                 {
-                    AssetXferUploader uploader = new AssetXferUploader(this, m_Scene, assetID, m_dumpAssetsToFile);
+                    uploader = new AssetXferUploader(this, m_Scene, transactionID, m_dumpAssetsToFile);
 
 //                    m_log.DebugFormat(
 //                        "[AGENT ASSETS TRANSACTIONS]: Adding asset xfer uploader {0} since it didn't previously exist", transactionID);
 
                     XferUploaders.Add(transactionID, uploader);
-
-                    return uploader;
+                }
+                else
+                {
+                    uploader = XferUploaders[transactionID];
                 }
             }
 
-            m_log.WarnFormat("[AGENT ASSETS TRANSACTIONS]: Ignoring request for asset xfer uploader {0} since it already exists", transactionID);
-
-            return null;
+            return uploader;
         }
 
         public void HandleXfer(ulong xferID, uint packetID, byte[] data)
@@ -151,117 +148,30 @@ namespace OpenSim.Region.CoreModules.Agent.AssetTransaction
                 string description, string name, sbyte invType,
                sbyte type, byte wearableType, uint nextOwnerMask)
         {
-            AssetXferUploader uploader = null;
-
-            lock (XferUploaders)
-            {
-                if (XferUploaders.ContainsKey(transactionID))
-                    uploader = XferUploaders[transactionID];
-            }
+            AssetXferUploader uploader = RequestXferUploader(transactionID);
 
-            if (uploader != null)
-            {
-                uploader.RequestCreateInventoryItem(
-                    remoteClient, transactionID, folderID,
-                    callbackID, description, name, invType, type,
-                    wearableType, nextOwnerMask);
+            uploader.RequestCreateInventoryItem(
+                remoteClient, folderID, callbackID,
+                description, name, invType, type, wearableType, nextOwnerMask);
 
-                return true;
-            }
-            
-            return false;
-        }
-
-        /// <summary>
-        /// Get an uploaded asset. If the data is successfully retrieved,
-        /// the transaction will be removed.
-        /// </summary>
-        /// <param name="transactionID"></param>
-        /// <returns>The asset if the upload has completed, null if it has not.</returns>
-        private AssetBase GetTransactionAsset(UUID transactionID)
-        {
-            lock (XferUploaders)
-            {
-                if (XferUploaders.ContainsKey(transactionID))
-                {
-                    AssetXferUploader uploader = XferUploaders[transactionID];
-                    AssetBase asset = uploader.GetAssetData();
-                    RemoveXferUploader(transactionID);
-
-                    return asset;
-                }
-            }
-
-            return null;
+            return true;
         }
 
         public void RequestUpdateTaskInventoryItem(IClientAPI remoteClient,
                 SceneObjectPart part, UUID transactionID,
                 TaskInventoryItem item)
         {
-            AssetXferUploader uploader = null;
-
-            lock (XferUploaders)
-            {
-                if (XferUploaders.ContainsKey(transactionID))
-                    uploader = XferUploaders[transactionID];
-            }
-
-            if (uploader != null)
-            {
-                AssetBase asset = GetTransactionAsset(transactionID);
-
-                // Only legacy viewers use this, and they prefer CAPS, which 
-                // we have, so this really never runs.
-                // Allow it, but only for "safe" types.
-                if ((InventoryType)item.InvType != InventoryType.Notecard &&
-                    (InventoryType)item.InvType != InventoryType.LSL)
-                    return;
+            AssetXferUploader uploader = RequestXferUploader(transactionID);
 
-                if (asset != null)
-                {
-//                    m_log.DebugFormat(
-//                        "[AGENT ASSETS TRANSACTIONS]: Updating item {0} in {1} for transaction {2}", 
-//                        item.Name, part.Name, transactionID);
-                    
-                    asset.FullID = UUID.Random();
-                    asset.Name = item.Name;
-                    asset.Description = item.Description;
-                    asset.Type = (sbyte)item.Type;
-                    item.AssetID = asset.FullID;
-
-                    m_Scene.AssetService.Store(asset);
-                }
-            }
-            else
-            {
-                m_log.ErrorFormat(
-                    "[AGENT ASSET TRANSACTIONS]: Could not find uploader with transaction ID {0} when handling request to update task inventory item {1} in {2}",
-                    transactionID, item.Name, part.Name);
-            }
+            uploader.RequestUpdateTaskInventoryItem(remoteClient, item);
         }
 
         public void RequestUpdateInventoryItem(IClientAPI remoteClient,
                 UUID transactionID, InventoryItemBase item)
         {
-            AssetXferUploader uploader = null;
-
-            lock (XferUploaders)
-            {
-                if (XferUploaders.ContainsKey(transactionID))
-                    uploader = XferUploaders[transactionID];
-            }
+            AssetXferUploader uploader = RequestXferUploader(transactionID);
 
-            if (uploader != null)
-            {
-                uploader.RequestUpdateInventoryItem(remoteClient, transactionID, item);
-            }
-            else
-            {
-                m_log.ErrorFormat(
-                    "[AGENT ASSET TRANSACTIONS]: Could not find uploader with transaction ID {0} when handling request to update inventory item {1} for {2}",
-                    transactionID, item.Name, remoteClient.Name);
-            }
+            uploader.RequestUpdateInventoryItem(remoteClient, item);
         }
     }
 }
diff --git a/OpenSim/Region/CoreModules/Agent/AssetTransaction/AssetTransactionModule.cs b/OpenSim/Region/CoreModules/Agent/AssetTransaction/AssetTransactionModule.cs
index 441c4ff..4bb8986 100644
--- a/OpenSim/Region/CoreModules/Agent/AssetTransaction/AssetTransactionModule.cs
+++ b/OpenSim/Region/CoreModules/Agent/AssetTransaction/AssetTransactionModule.cs
@@ -215,7 +215,7 @@ namespace OpenSim.Region.CoreModules.Agent.AssetTransaction
             IClientAPI remoteClient, SceneObjectPart part, UUID transactionID, TaskInventoryItem item)
         {
             m_log.DebugFormat(
-                "[TRANSACTIONS MANAGER] Called HandleTaskItemUpdateFromTransaction with item {0} in {1} for {2} in {3}",
+                "[ASSET TRANSACTION MODULE] Called HandleTaskItemUpdateFromTransaction with item {0} in {1} for {2} in {3}",
                 item.Name, part.Name, remoteClient.Name, m_Scene.RegionInfo.RegionName);
 
             AgentAssetTransactions transactions =
@@ -274,13 +274,8 @@ namespace OpenSim.Region.CoreModules.Agent.AssetTransaction
             }
 
             AgentAssetTransactions transactions = GetUserTransactions(remoteClient.AgentId);
-            AssetXferUploader uploader = transactions.RequestXferUploader(transaction, assetID);
-
-            if (uploader != null)
-            {
-                uploader.Initialise(remoteClient, assetID, transaction, type,
-                        data, storeLocal, tempFile);
-            }
+            AssetXferUploader uploader = transactions.RequestXferUploader(transaction);
+            uploader.StartUpload(remoteClient, assetID, transaction, type, data, storeLocal, tempFile);
         }
 
         /// <summary>
diff --git a/OpenSim/Region/CoreModules/Agent/AssetTransaction/AssetXferUploader.cs b/OpenSim/Region/CoreModules/Agent/AssetTransaction/AssetXferUploader.cs
index 4cedfe6..f6dd5af 100644
--- a/OpenSim/Region/CoreModules/Agent/AssetTransaction/AssetXferUploader.cs
+++ b/OpenSim/Region/CoreModules/Agent/AssetTransaction/AssetXferUploader.cs
@@ -49,39 +49,75 @@ namespace OpenSim.Region.CoreModules.Agent.AssetTransaction
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
         /// <summary>
+        /// Upload state.
+        /// </summary>
+        /// <remarks>
+        /// New -> Uploading -> Complete
+        /// </remarks>
+        private enum UploadState
+        {
+            New,
+            Uploading,
+            Complete
+        }
+
+        /// <summary>
         /// Reference to the object that holds this uploader.  Used to remove ourselves from it's list if we
         /// are performing a delayed update.
         /// </summary>
         AgentAssetTransactions m_transactions;
 
+        private UploadState m_uploadState = UploadState.New;
+
         private AssetBase m_asset;
         private UUID InventFolder = UUID.Zero;
         private sbyte invType = 0;
 
-        private bool m_createItem = false;
-        private uint m_createItemCallback = 0;
-        private bool m_updateItem = false;
+        private bool m_createItem;
+        private uint m_createItemCallback;
+
+        private bool m_updateItem;
         private InventoryItemBase m_updateItemData;
 
+        private bool m_updateTaskItem;
+        private TaskInventoryItem m_updateTaskItemData;
+
         private string m_description = String.Empty;
         private bool m_dumpAssetToFile;
-        private bool m_finished = false;
         private string m_name = String.Empty;
-        private bool m_storeLocal;
+//        private bool m_storeLocal;
         private uint nextPerm = 0;
         private IClientAPI ourClient;
-        private UUID TransactionID = UUID.Zero;
+
+        private UUID m_transactionID;
+
         private sbyte type = 0;
         private byte wearableType = 0;
         private byte[] m_oldData = null;
         public ulong XferID;
         private Scene m_Scene;
 
-        public AssetXferUploader(AgentAssetTransactions transactions, Scene scene, UUID assetID, bool dumpAssetToFile)
+        /// <summary>
+        /// AssetXferUploader constructor
+        /// </summary>
+        /// <param name='transactions'>/param>
+        /// <param name='scene'></param>
+        /// <param name='transactionID'></param>
+        /// <param name='dumpAssetToFile'>
+        /// If true then when the asset is uploaded it is dumped to a file with the format
+        /// String.Format("{6}_{7}_{0:d2}{1:d2}{2:d2}_{3:d2}{4:d2}{5:d2}.dat",
+        ///   now.Year, now.Month, now.Day, now.Hour, now.Minute,
+        ///   now.Second, m_asset.Name, m_asset.Type);
+        /// for debugging purposes.
+        /// </param>
+        public AssetXferUploader(
+            AgentAssetTransactions transactions, Scene scene, UUID transactionID, bool dumpAssetToFile)
         {
+            m_asset = new AssetBase();
+
             m_transactions = transactions;
+            m_transactionID = transactionID;
             m_Scene = scene;
-            m_asset = new AssetBase() { FullID = assetID };
             m_dumpAssetToFile = dumpAssetToFile;
         }
 
@@ -127,30 +163,50 @@ namespace OpenSim.Region.CoreModules.Agent.AssetTransaction
         }
 
         /// <summary>
-        /// Initialise asset transfer from the client
+        /// Start asset transfer from the client
         /// </summary>
-        /// <param name="xferID"></param>
-        /// <param name="packetID"></param>
-        /// <param name="data"></param>
-        public void Initialise(IClientAPI remoteClient, UUID assetID,
-                UUID transaction, sbyte type, byte[] data, bool storeLocal,
-                bool tempFile)
+        /// <param name="remoteClient"></param>
+        /// <param name="assetID"></param>
+        /// <param name="transaction"></param>
+        /// <param name="type"></param>
+        /// <param name="data">
+        /// Optional data.  If present then the asset is created immediately with this data
+        /// rather than requesting an upload from the client.  The data must be longer than 2 bytes.
+        /// </param>
+        /// <param name="storeLocal"></param>
+        /// <param name="tempFile"></param>
+        public void StartUpload(
+            IClientAPI remoteClient, UUID assetID, UUID transaction, sbyte type, byte[] data, bool storeLocal,
+            bool tempFile)
         {
 //            m_log.DebugFormat(
 //                "[ASSET XFER UPLOADER]: Initialised xfer from {0}, asset {1}, transaction {2}, type {3}, storeLocal {4}, tempFile {5}, already received data length {6}",
 //                remoteClient.Name, assetID, transaction, type, storeLocal, tempFile, data.Length);
 
+            lock (this)
+            {
+                if (m_uploadState != UploadState.New)
+                {
+                    m_log.WarnFormat(
+                        "[ASSET XFER UPLOADER]: Tried to start upload of asset {0}, transaction {1} for {2} but this is already in state {3}.  Aborting.",
+                        assetID, transaction, remoteClient.Name, m_uploadState);
+
+                    return;
+                }
+
+                m_uploadState = UploadState.Uploading;
+            }
+
             ourClient = remoteClient;
-            m_asset.Name = "blank";
-            m_asset.Description = "empty";
+
+            m_asset.FullID = assetID;
             m_asset.Type = type;
             m_asset.CreatorID = remoteClient.AgentId.ToString();
             m_asset.Data = data;
             m_asset.Local = storeLocal;
             m_asset.Temporary = tempFile;
 
-            TransactionID = transaction;
-            m_storeLocal = storeLocal;
+//            m_storeLocal = storeLocal;
 
             if (m_asset.Data.Length > 2)
             {
@@ -175,36 +231,35 @@ namespace OpenSim.Region.CoreModules.Agent.AssetTransaction
 
         protected void SendCompleteMessage()
         {
-            ourClient.SendAssetUploadCompleteMessage(m_asset.Type, true,
-                    m_asset.FullID);
-
             // We must lock in order to avoid a race with a separate thread dealing with an inventory item or create
             // message from other client UDP.
             lock (this)
             {
-                m_finished = true;
+                m_uploadState = UploadState.Complete;
+
+                ourClient.SendAssetUploadCompleteMessage(m_asset.Type, true, m_asset.FullID);
+
                 if (m_createItem)
                 {
-                    DoCreateItem(m_createItemCallback);
+                    CompleteCreateItem(m_createItemCallback);
                 }
                 else if (m_updateItem)
                 {
-                    StoreAssetForItemUpdate(m_updateItemData);
-    
-                    // Remove ourselves from the list of transactions if completion was delayed until the transaction
-                    // was complete.
-                    // TODO: Should probably do the same for create item.
-                    m_transactions.RemoveXferUploader(TransactionID);
+                    CompleteItemUpdate(m_updateItemData);
                 }
-                else if (m_storeLocal)
+                else if (m_updateTaskItem)
                 {
-                    m_Scene.AssetService.Store(m_asset);
+                    CompleteTaskItemUpdate(m_updateTaskItemData);
                 }
+//                else if (m_storeLocal)
+//                {
+//                    m_Scene.AssetService.Store(m_asset);
+//                }
             }
 
             m_log.DebugFormat(
                 "[ASSET XFER UPLOADER]: Uploaded asset {0} for transaction {1}",
-                m_asset.FullID, TransactionID);
+                m_asset.FullID, m_transactionID);
 
             if (m_dumpAssetToFile)
             {
@@ -232,40 +287,37 @@ namespace OpenSim.Region.CoreModules.Agent.AssetTransaction
         }
 
         public void RequestCreateInventoryItem(IClientAPI remoteClient,
-                UUID transactionID, UUID folderID, uint callbackID,
+                UUID folderID, uint callbackID,
                 string description, string name, sbyte invType,
                 sbyte type, byte wearableType, uint nextOwnerMask)
         {
-            if (TransactionID == transactionID)
+            InventFolder = folderID;
+            m_name = name;
+            m_description = description;
+            this.type = type;
+            this.invType = invType;
+            this.wearableType = wearableType;
+            nextPerm = nextOwnerMask;
+            m_asset.Name = name;
+            m_asset.Description = description;
+            m_asset.Type = type;
+
+            // We must lock to avoid a race with a separate thread uploading the asset.
+            lock (this)
             {
-                InventFolder = folderID;
-                m_name = name;
-                m_description = description;
-                this.type = type;
-                this.invType = invType;
-                this.wearableType = wearableType;
-                nextPerm = nextOwnerMask;
-                m_asset.Name = name;
-                m_asset.Description = description;
-                m_asset.Type = type;
-
-                // We must lock to avoid a race with a separate thread uploading the asset.
-                lock (this)
+                if (m_uploadState == UploadState.Complete)
                 {
-                    if (m_finished)
-                    {
-                        DoCreateItem(callbackID);
-                    }
-                    else
-                    {
-                        m_createItem = true; //set flag so the inventory item is created when upload is complete
-                        m_createItemCallback = callbackID;
-                    }
+                    CompleteCreateItem(callbackID);
+                }
+                else
+                {
+                    m_createItem = true; //set flag so the inventory item is created when upload is complete
+                    m_createItemCallback = callbackID;
                 }
             }
         }
 
-        public void RequestUpdateInventoryItem(IClientAPI remoteClient, UUID transactionID, InventoryItemBase item)
+        public void RequestUpdateInventoryItem(IClientAPI remoteClient, InventoryItemBase item)
         {
             // We must lock to avoid a race with a separate thread uploading the asset.
             lock (this)
@@ -280,9 +332,9 @@ namespace OpenSim.Region.CoreModules.Agent.AssetTransaction
                 item.AssetID = m_asset.FullID;
                 m_Scene.InventoryService.UpdateItem(item);
 
-                if (m_finished)
+                if (m_uploadState == UploadState.Complete)
                 {
-                    StoreAssetForItemUpdate(item);
+                    CompleteItemUpdate(item);
                 }
                 else
                 {
@@ -296,20 +348,59 @@ namespace OpenSim.Region.CoreModules.Agent.AssetTransaction
             }
         }
 
+        public void RequestUpdateTaskInventoryItem(IClientAPI remoteClient, TaskInventoryItem taskItem)
+        {
+            // We must lock to avoid a race with a separate thread uploading the asset.
+            lock (this)
+            {
+                m_asset.Name = taskItem.Name;
+                m_asset.Description = taskItem.Description;
+                m_asset.Type = (sbyte)taskItem.Type;
+                taskItem.AssetID = m_asset.FullID;
+
+                if (m_uploadState == UploadState.Complete)
+                {
+                    CompleteTaskItemUpdate(taskItem);
+                }
+                else
+                {
+                    m_updateTaskItem = true;
+                    m_updateTaskItemData = taskItem;
+                }
+            }
+        }
+
         /// <summary>
-        /// Store the asset for the given item.
+        /// Store the asset for the given item when it has been uploaded.
         /// </summary>
         /// <param name="item"></param>
-        private void StoreAssetForItemUpdate(InventoryItemBase item)
+        private void CompleteItemUpdate(InventoryItemBase item)
         {
 //            m_log.DebugFormat(
 //                "[ASSET XFER UPLOADER]: Storing asset {0} for earlier item update for {1} for {2}",
 //                m_asset.FullID, item.Name, ourClient.Name);
 
             m_Scene.AssetService.Store(m_asset);
+
+            m_transactions.RemoveXferUploader(m_transactionID);
+        }
+
+        /// <summary>
+        /// Store the asset for the given task item when it has been uploaded.
+        /// </summary>
+        /// <param name="taskItem"></param>
+        private void CompleteTaskItemUpdate(TaskInventoryItem taskItem)
+        {
+//            m_log.DebugFormat(
+//                "[ASSET XFER UPLOADER]: Storing asset {0} for earlier task item update for {1} for {2}",
+//                m_asset.FullID, taskItem.Name, ourClient.Name);
+
+            m_Scene.AssetService.Store(m_asset);
+
+            m_transactions.RemoveXferUploader(m_transactionID);
         }
 
-        private void DoCreateItem(uint callbackID)
+        private void CompleteCreateItem(uint callbackID)
         {
             ValidateAssets();
             m_Scene.AssetService.Store(m_asset);
@@ -339,6 +430,8 @@ namespace OpenSim.Region.CoreModules.Agent.AssetTransaction
                 ourClient.SendInventoryItemCreateUpdate(item, callbackID);
             else
                 ourClient.SendAlertMessage("Unable to create inventory item");
+
+            m_transactions.RemoveXferUploader(m_transactionID);
         }
 
         private void ValidateAssets()
@@ -416,7 +509,7 @@ namespace OpenSim.Region.CoreModules.Agent.AssetTransaction
         /// <returns>null if the asset has not finished uploading</returns>
         public AssetBase GetAssetData()
         {
-            if (m_finished)
+            if (m_uploadState == UploadState.Complete)
             {
                 ValidateAssets();
                 return m_asset;
@@ -469,4 +562,3 @@ namespace OpenSim.Region.CoreModules.Agent.AssetTransaction
         }
     }
 }
-
diff --git a/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs b/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
index 7d7176f..d1a563c 100644
--- a/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
+++ b/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
@@ -52,7 +52,7 @@ using OpenSim.Services.Interfaces;
 [assembly: Addin("FlotsamAssetCache", "1.1")]
 [assembly: AddinDependency("OpenSim", "0.5")]
 
-namespace Flotsam.RegionModules.AssetCache
+namespace OpenSim.Region.CoreModules.Asset
 {
     [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule")]
     public class FlotsamAssetCache : ISharedRegionModule, IImprovedAssetCache, IAssetService
@@ -107,8 +107,6 @@ namespace Flotsam.RegionModules.AssetCache
         private IAssetService m_AssetService;
         private List<Scene> m_Scenes = new List<Scene>();
 
-        private bool m_DeepScanBeforePurge;
-
         public FlotsamAssetCache()
         {
             m_InvalidChars.AddRange(Path.GetInvalidPathChars());
@@ -170,8 +168,6 @@ namespace Flotsam.RegionModules.AssetCache
                         m_CacheDirectoryTierLen = assetConfig.GetInt("CacheDirectoryTierLength", m_CacheDirectoryTierLen);
 
                         m_CacheWarnAt = assetConfig.GetInt("CacheWarnAt", m_CacheWarnAt);
-
-                        m_DeepScanBeforePurge = assetConfig.GetBoolean("DeepScanBeforePurge", m_DeepScanBeforePurge);
                     }
 
                     m_log.InfoFormat("[FLOTSAM ASSET CACHE]: Cache Directory {0}", m_CacheDirectory);
@@ -519,13 +515,10 @@ namespace Flotsam.RegionModules.AssetCache
             // Purge all files last accessed prior to this point
             DateTime purgeLine = DateTime.Now - m_FileExpiration;
 
-            // An optional deep scan at this point will ensure assets present in scenes,
-            // or referenced by objects in the scene, but not recently accessed 
-            // are not purged.
-            if (m_DeepScanBeforePurge)
-            {
-                CacheScenes();
-            }
+            // An asset cache may contain local non-temporary assets that are not in the asset service.  Therefore,
+            // before cleaning up expired files we must scan the objects in the scene to make sure that we retain
+            // such local assets if they have not been recently accessed.
+            TouchAllSceneAssets(false);
 
             foreach (string dir in Directory.GetDirectories(m_CacheDirectory))
             {
@@ -718,11 +711,14 @@ namespace Flotsam.RegionModules.AssetCache
 
         /// <summary>
         /// Iterates through all Scenes, doing a deep scan through assets 
-        /// to cache all assets present in the scene or referenced by assets 
-        /// in the scene
+        /// to update the access time of all assets present in the scene or referenced by assets
+        /// in the scene.
         /// </summary>
-        /// <returns></returns>
-        private int CacheScenes()
+        /// <param name="storeUncached">
+        /// If true, then assets scanned which are not found in cache are added to the cache.
+        /// </param>
+        /// <returns>Number of distinct asset references found in the scene.</returns>
+        private int TouchAllSceneAssets(bool storeUncached)
         {
             UuidGatherer gatherer = new UuidGatherer(m_AssetService);
 
@@ -745,7 +741,7 @@ namespace Flotsam.RegionModules.AssetCache
                 {
                     File.SetLastAccessTime(filename, DateTime.Now);
                 }
-                else
+                else if (storeUncached)
                 {
                     m_AssetService.Get(assetID.ToString());
                 }
@@ -873,13 +869,14 @@ namespace Flotsam.RegionModules.AssetCache
 
                         break;
 
-
                     case "assets":
-                        m_log.Info("[FLOTSAM ASSET CACHE]: Caching all assets, in all scenes.");
+                        m_log.Info("[FLOTSAM ASSET CACHE]: Ensuring assets are cached for all scenes.");
 
                         Util.FireAndForget(delegate {
-                            int assetsCached = CacheScenes();
-                            m_log.InfoFormat("[FLOTSAM ASSET CACHE]: Completed Scene Caching, {0} assets found.", assetsCached);
+                            int assetReferenceTotal = TouchAllSceneAssets(true);
+                            m_log.InfoFormat(
+                                "[FLOTSAM ASSET CACHE]: Completed check with {0} assets.",
+                                assetReferenceTotal);
                         });
 
                         break;
diff --git a/OpenSim/Region/CoreModules/Asset/Tests/FlotsamAssetCacheTests.cs b/OpenSim/Region/CoreModules/Asset/Tests/FlotsamAssetCacheTests.cs
index c91b25f..1c2bfd0 100644
--- a/OpenSim/Region/CoreModules/Asset/Tests/FlotsamAssetCacheTests.cs
+++ b/OpenSim/Region/CoreModules/Asset/Tests/FlotsamAssetCacheTests.cs
@@ -35,7 +35,6 @@ using Nini.Config;
 using NUnit.Framework;
 using OpenMetaverse;
 using OpenMetaverse.Assets;
-using Flotsam.RegionModules.AssetCache;
 using OpenSim.Framework;
 using OpenSim.Region.Framework.Scenes;
 using OpenSim.Region.Framework.Scenes.Serialization;
diff --git a/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs b/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
index 951afd7..acd156e 100644
--- a/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
@@ -286,6 +286,20 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
         
         public bool AttachObject(IScenePresence sp, SceneObjectGroup group, uint attachmentPt, bool silent, bool useAttachData, bool temp)
         {
+            if (!Enabled)
+                return false;
+
+            if (AttachObjectInternal(sp, group, attachmentPt, silent, useAttachData, temp))
+            {
+                m_scene.EventManager.TriggerOnAttach(group.LocalId, group.FromItemID, sp.UUID);
+                return true;
+            }
+
+            return false;
+        }
+        
+        private bool AttachObjectInternal(IScenePresence sp, SceneObjectGroup group, uint attachmentPt, bool silent, bool useAttachData, bool temp)
+        {
             lock (sp.AttachmentsSyncLock)
             {
 //                m_log.DebugFormat(
@@ -461,6 +475,11 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
 
         public void DetachSingleAttachmentToGround(IScenePresence sp, uint soLocalId)
         {
+            DetachSingleAttachmentToGround(sp, soLocalId, sp.AbsolutePosition, Quaternion.Identity);
+        }
+
+        public void DetachSingleAttachmentToGround(IScenePresence sp, uint soLocalId, Vector3 absolutePos, Quaternion absoluteRot)
+        {
             if (!Enabled)
                 return;
 
@@ -502,7 +521,11 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
                 so.FromItemID = UUID.Zero;
 
                 SceneObjectPart rootPart = so.RootPart;
-                so.AbsolutePosition = sp.AbsolutePosition;
+                so.AbsolutePosition = absolutePos;
+                if (absoluteRot != Quaternion.Identity)
+                {
+                    so.UpdateGroupRotationR(absoluteRot);
+                }
                 so.AttachedAvatar = UUID.Zero;
                 rootPart.SetParentLocalId(0);
                 so.ClearPartAttachmentData();
@@ -616,9 +639,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
 
             if (grp.HasGroupChanged)
             {
-//                m_log.DebugFormat(
-//                    "[ATTACHMENTS MODULE]: Updating asset for attachment {0}, attachpoint {1}",
-//                    grp.UUID, grp.AttachmentPoint);
+                m_log.DebugFormat(
+                    "[ATTACHMENTS MODULE]: Updating asset for attachment {0}, attachpoint {1}",
+                    grp.UUID, grp.AttachmentPoint);
 
                 string sceneObjectXml = SceneObjectSerializer.ToOriginalXmlFormat(grp, scriptedState);
 
@@ -862,7 +885,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
                     // This will throw if the attachment fails
                     try
                     {
-                        AttachObject(sp, objatt, attachmentPt, false, false, false);
+                        AttachObjectInternal(sp, objatt, attachmentPt, false, false, false);
                     }
                     catch (Exception e)
                     {
@@ -933,6 +956,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
 
             InventoryItemBase item = new InventoryItemBase(itemID, sp.UUID);
             item = m_scene.InventoryService.GetItem(item);
+            if (item == null)
+                return;
+
             bool changed = sp.Appearance.SetAttachment((int)AttachmentPt, itemID, item.AssetID);
             if (changed && m_scene.AvatarFactory != null)
             {
diff --git a/OpenSim/Region/CoreModules/Avatar/Attachments/Tests/AttachmentsModuleTests.cs b/OpenSim/Region/CoreModules/Avatar/Attachments/Tests/AttachmentsModuleTests.cs
index d9a619d..4e9d3f9 100644
--- a/OpenSim/Region/CoreModules/Avatar/Attachments/Tests/AttachmentsModuleTests.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Attachments/Tests/AttachmentsModuleTests.cs
@@ -62,7 +62,10 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
     public class AttachmentsModuleTests : OpenSimTestCase
     {
         private AutoResetEvent m_chatEvent = new AutoResetEvent(false);
-        private OSChatMessage m_osChatMessageReceived;
+//        private OSChatMessage m_osChatMessageReceived;
+
+        // Used to test whether the operations have fired the attach event.  Must be reset after each test.
+        private int m_numberOfAttachEventsFired;
 
         [TestFixtureSetUp]
         public void FixtureInit()
@@ -83,7 +86,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
         {
 //            Console.WriteLine("Got chat [{0}]", oscm.Message);
 
-            m_osChatMessageReceived = oscm;
+//            m_osChatMessageReceived = oscm;
             m_chatEvent.Set();
         }
 
@@ -99,6 +102,8 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
                     "attachments-test-scene", TestHelpers.ParseTail(999), 1000, 1000, config);
             SceneHelpers.SetupSceneModules(scene, config, modules.ToArray());
 
+            scene.EventManager.OnAttach += (localID, itemID, avatarID) => m_numberOfAttachEventsFired++;
+
             return scene;
         }
 
@@ -181,6 +186,8 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
             TestHelpers.InMethod();
 //            TestHelpers.EnableLogging();
 
+            m_numberOfAttachEventsFired = 0;
+
             Scene scene = CreateTestScene();
             UserAccount ua1 = UserAccountHelpers.CreateUserWithInventory(scene, 0x1);
             ScenePresence sp = SceneHelpers.AddScenePresence(scene, ua1);
@@ -189,6 +196,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
 
             SceneObjectGroup so = SceneHelpers.AddSceneObject(scene, attName, sp.UUID);
 
+            m_numberOfAttachEventsFired = 0;
             scene.AttachmentsModule.AttachObject(sp, so, (uint)AttachmentPoint.Chest, false, false, false);
 
             // Check status on scene presence
@@ -216,7 +224,8 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
 
             Assert.That(scene.GetSceneObjectGroups().Count, Is.EqualTo(1));
 
-//            TestHelpers.DisableLogging();
+            // Check events
+            Assert.That(m_numberOfAttachEventsFired, Is.EqualTo(1));
         }
 
         /// <summary>
@@ -228,6 +237,8 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
             TestHelpers.InMethod();
 //            TestHelpers.EnableLogging();
 
+            m_numberOfAttachEventsFired = 0;
+
             Scene scene = CreateTestScene();
             UserAccount ua1 = UserAccountHelpers.CreateUserWithInventory(scene, 0x1);
             ScenePresence sp = SceneHelpers.AddScenePresence(scene, ua1);
@@ -247,6 +258,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
 
             Assert.That(sp.HasAttachments(), Is.False);
             Assert.That(scene.GetSceneObjectGroups().Count, Is.EqualTo(1));
+
+            // Check events
+            Assert.That(m_numberOfAttachEventsFired, Is.EqualTo(0));
         }
 
         [Test]
@@ -261,6 +275,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
 
             InventoryItemBase attItem = CreateAttachmentItem(scene, ua1.PrincipalID, "att", 0x10, 0x20);
 
+            m_numberOfAttachEventsFired = 0;
             scene.AttachmentsModule.RezSingleAttachmentFromInventory(
                 sp, attItem.ID, (uint)AttachmentPoint.Chest);
 
@@ -280,6 +295,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
             Assert.That(sp.Appearance.GetAttachpoint(attItem.ID), Is.EqualTo((int)AttachmentPoint.Chest));
 
             Assert.That(scene.GetSceneObjectGroups().Count, Is.EqualTo(1));
+
+            // Check events
+            Assert.That(m_numberOfAttachEventsFired, Is.EqualTo(1));
         }
 
         /// <summary>
@@ -338,6 +356,8 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
             ISceneEntity so
                 = scene.AttachmentsModule.RezSingleAttachmentFromInventory(
                     sp, attItem.ID, (uint)AttachmentPoint.Chest);
+
+            m_numberOfAttachEventsFired = 0;
             scene.AttachmentsModule.DetachSingleAttachmentToGround(sp, so.LocalId);
 
             // Check scene presence status
@@ -353,6 +373,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
 
             // Check object in scene
             Assert.That(scene.GetSceneObjectGroup("att"), Is.Not.Null);
+
+            // Check events
+            Assert.That(m_numberOfAttachEventsFired, Is.EqualTo(1));
         }
 
         [Test]
@@ -369,6 +392,8 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
             SceneObjectGroup so
                 = (SceneObjectGroup)scene.AttachmentsModule.RezSingleAttachmentFromInventory(
                     sp, attItem.ID, (uint)AttachmentPoint.Chest);
+
+            m_numberOfAttachEventsFired = 0;
             scene.AttachmentsModule.DetachSingleAttachmentToInv(sp, so);
 
             // Check status on scene presence
@@ -380,6 +405,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
             Assert.That(sp.Appearance.GetAttachpoint(attItem.ID), Is.EqualTo(0));
 
             Assert.That(scene.GetSceneObjectGroups().Count, Is.EqualTo(0));
+
+            // Check events
+            Assert.That(m_numberOfAttachEventsFired, Is.EqualTo(1));
         }
 
         /// <summary>
@@ -461,10 +489,14 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
 
             SceneObjectGroup rezzedAtt = presence.GetAttachments()[0];
 
-            scene.IncomingCloseAgent(presence.UUID);
+            m_numberOfAttachEventsFired = 0;
+            scene.IncomingCloseAgent(presence.UUID, false);
 
             // Check that we can't retrieve this attachment from the scene.
             Assert.That(scene.GetSceneObjectGroup(rezzedAtt.UUID), Is.Null);
+
+            // Check events
+            Assert.That(m_numberOfAttachEventsFired, Is.EqualTo(0));
         }
 
         [Test]
@@ -480,6 +512,8 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
             AgentCircuitData acd = SceneHelpers.GenerateAgentData(ua1.PrincipalID);
             acd.Appearance = new AvatarAppearance();
             acd.Appearance.SetAttachment((int)AttachmentPoint.Chest, attItem.ID, attItem.AssetID);
+
+            m_numberOfAttachEventsFired = 0;
             ScenePresence presence = SceneHelpers.AddScenePresence(scene, acd);
 
             Assert.That(presence.HasAttachments(), Is.True);
@@ -502,6 +536,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
             Assert.That(presence.Appearance.GetAttachpoint(attItem.ID), Is.EqualTo((int)AttachmentPoint.Chest));
 
             Assert.That(scene.GetSceneObjectGroups().Count, Is.EqualTo(1));
+
+            // Check events.  We expect OnAttach to fire on login.
+            Assert.That(m_numberOfAttachEventsFired, Is.EqualTo(1));
         }
 
         [Test]
@@ -522,10 +559,14 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
 
             Vector3 newPosition = new Vector3(1, 2, 4);
 
+            m_numberOfAttachEventsFired = 0;
             scene.SceneGraph.UpdatePrimGroupPosition(attSo.LocalId, newPosition, sp.ControllingClient);
 
             Assert.That(attSo.AbsolutePosition, Is.EqualTo(sp.AbsolutePosition));
             Assert.That(attSo.RootPart.AttachedPos, Is.EqualTo(newPosition));
+
+            // Check events
+            Assert.That(m_numberOfAttachEventsFired, Is.EqualTo(0));
         }
 
         [Test]
@@ -574,6 +615,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
             Vector3 teleportPosition = new Vector3(10, 11, 12);
             Vector3 teleportLookAt = new Vector3(20, 21, 22);
 
+            m_numberOfAttachEventsFired = 0;
             sceneA.RequestTeleportLocation(
                 beforeTeleportSp.ControllingClient,
                 sceneB.RegionInfo.RegionHandle,
@@ -616,29 +658,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
             Assert.That(actualSceneAAttachments.Count, Is.EqualTo(0));
 
             Assert.That(sceneA.GetSceneObjectGroups().Count, Is.EqualTo(0));
-        }
 
-        // I'm commenting this test because scene setup NEEDS InventoryService to 
-        // be non-null
-        //[Test]
-//        public void T032_CrossAttachments()
-//        {
-//            TestHelpers.InMethod();
-//
-//            ScenePresence presence = scene.GetScenePresence(agent1);
-//            ScenePresence presence2 = scene2.GetScenePresence(agent1);
-//            presence2.AddAttachment(sog1);
-//            presence2.AddAttachment(sog2);
-//
-//            ISharedRegionModule serialiser = new SerialiserModule();
-//            SceneHelpers.SetupSceneModules(scene, new IniConfigSource(), serialiser);
-//            SceneHelpers.SetupSceneModules(scene2, new IniConfigSource(), serialiser);
-//
-//            Assert.That(presence.HasAttachments(), Is.False, "Presence has attachments before cross");
-//
-//            //Assert.That(presence2.CrossAttachmentsIntoNewRegion(region1, true), Is.True, "Cross was not successful");
-//            Assert.That(presence2.HasAttachments(), Is.False, "Presence2 objects were not deleted");
-//            Assert.That(presence.HasAttachments(), Is.True, "Presence has not received new objects");
-//        }
+            // Check events
+            Assert.That(m_numberOfAttachEventsFired, Is.EqualTo(0));
+        }
     }
 }
diff --git a/OpenSim/Region/CoreModules/Avatar/AvatarFactory/AvatarFactoryModule.cs b/OpenSim/Region/CoreModules/Avatar/AvatarFactory/AvatarFactoryModule.cs
index 4cb4370..e3bf997 100644
--- a/OpenSim/Region/CoreModules/Avatar/AvatarFactory/AvatarFactoryModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/AvatarFactory/AvatarFactoryModule.cs
@@ -533,6 +533,7 @@ namespace OpenSim.Region.CoreModules.Avatar.AvatarFactory
                         // Ignore ruth's assets
                         if (appearance.Wearables[i][j].ItemID == AvatarWearable.DefaultWearables[i][0].ItemID)
                             continue;
+
                         InventoryItemBase baseItem = new InventoryItemBase(appearance.Wearables[i][j].ItemID, userID);
                         baseItem = invService.GetItem(baseItem);
 
diff --git a/OpenSim/Region/CoreModules/Avatar/Chat/ChatModule.cs b/OpenSim/Region/CoreModules/Avatar/Chat/ChatModule.cs
index dbbb0ae..4407e40 100644
--- a/OpenSim/Region/CoreModules/Avatar/Chat/ChatModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Chat/ChatModule.cs
@@ -197,6 +197,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
             string fromName = c.From;
             string fromNamePrefix = "";
             UUID fromID = UUID.Zero;
+            UUID ownerID = UUID.Zero;
             string message = c.Message;
             IScene scene = c.Scene;
             UUID destination = c.Destination;
@@ -224,11 +225,16 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
                     fromNamePrefix = m_adminPrefix;
                 }
                 destination = UUID.Zero; // Avatars cant "SayTo"
+                ownerID = c.Sender.AgentId;
+
                 break;
 
             case ChatSourceType.Object:
                 fromID = c.SenderUUID;
 
+                if (c.SenderObject != null && c.SenderObject is SceneObjectPart)
+                    ownerID = ((SceneObjectPart)c.SenderObject).OwnerID;
+
                 break;
             }
 
@@ -262,8 +268,16 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
                             // objects on a parcel with access restrictions
                             if (c.Sender == null || Presencecheck.IsEitherBannedOrRestricted(c.Sender.AgentId) != true)
                             {
-                                if (TrySendChatMessage(presence, fromPos, regionPos, fromID, fromNamePrefix + fromName, c.Type, message, sourceType))
-                                    receiverIDs.Add(presence.UUID);
+                                if (destination != UUID.Zero)
+                                {
+                                    if (TrySendChatMessage(presence, fromPos, regionPos, fromID, ownerID, fromNamePrefix + fromName, c.Type, message, sourceType, true))
+                                        receiverIDs.Add(presence.UUID);
+                                }
+                                else
+                                {
+                                    if (TrySendChatMessage(presence, fromPos, regionPos, fromID, ownerID, fromNamePrefix + fromName, c.Type, message, sourceType, false))
+                                        receiverIDs.Add(presence.UUID);
+                                }
                             }
                         }
                     }
@@ -324,7 +338,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
                             (((SceneObjectPart)c.SenderObject).OwnerID != client.AgentId))
                             return;
                         
-                        client.SendChatMessage(c.Message, (byte)cType, CenterOfRegion, fromName, fromID, 
+                        client.SendChatMessage(c.Message, (byte)cType, CenterOfRegion, fromName, fromID, fromID,
                                                (byte)sourceType, (byte)ChatAudibleLevel.Fully);
                         receiverIDs.Add(client.AgentId);
                     }
@@ -341,15 +355,20 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
         /// <param name="fromPos"></param>
         /// <param name="regionPos">/param>
         /// <param name="fromAgentID"></param>
+        /// <param name='ownerID'>
+        /// Owner of the message.  For at least some messages from objects, this has to be correctly filled with the owner's UUID.
+        /// This is the case for script error messages in viewer 3 since LLViewer change EXT-7762
+        /// </param>
         /// <param name="fromName"></param>
         /// <param name="type"></param>
         /// <param name="message"></param>
         /// <param name="src"></param>
         /// <returns>true if the message was sent to the receiver, false if it was not sent due to failing a 
         /// precondition</returns>
-        protected virtual bool TrySendChatMessage(ScenePresence presence, Vector3 fromPos, Vector3 regionPos,
-                                                  UUID fromAgentID, string fromName, ChatTypeEnum type,
-                                                  string message, ChatSourceType src)
+        protected virtual bool TrySendChatMessage(
+            ScenePresence presence, Vector3 fromPos, Vector3 regionPos,
+            UUID fromAgentID, UUID ownerID, string fromName, ChatTypeEnum type,
+            string message, ChatSourceType src, bool ignoreDistance)
         {
             // don't send chat to child agents
             if (presence.IsChildAgent) return false;
@@ -369,8 +388,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
             }
 
             // TODO: should change so the message is sent through the avatar rather than direct to the ClientView
-            presence.ControllingClient.SendChatMessage(message, (byte) type, fromPos, fromName,
-                                                       fromAgentID, (byte)src, (byte)ChatAudibleLevel.Fully);
+            presence.ControllingClient.SendChatMessage(
+                message, (byte) type, fromPos, fromName,
+                fromAgentID, ownerID, (byte)src, (byte)ChatAudibleLevel.Fully);
             
             return true;
         }
diff --git a/OpenSim/Region/CoreModules/Avatar/Friends/CallingCardModule.cs b/OpenSim/Region/CoreModules/Avatar/Friends/CallingCardModule.cs
index d942e87..5ec0ea9 100644
--- a/OpenSim/Region/CoreModules/Avatar/Friends/CallingCardModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Friends/CallingCardModule.cs
@@ -141,7 +141,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Friends
                         client.FirstName+" "+client.LastName,
                         destID, (byte)211, false,
                         String.Empty,
-                        transactionID, false, new Vector3(), new byte[0]),
+                        transactionID, false, new Vector3(), new byte[0], true),
                         delegate(bool success) {} );
             }
         }
diff --git a/OpenSim/Region/CoreModules/Avatar/Friends/FriendsModule.cs b/OpenSim/Region/CoreModules/Avatar/Friends/FriendsModule.cs
index 24ec435..f1903c3 100644
--- a/OpenSim/Region/CoreModules/Avatar/Friends/FriendsModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Friends/FriendsModule.cs
@@ -28,6 +28,7 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Linq;
 using System.Reflection;
 using System.Threading;
 using log4net;
@@ -482,9 +483,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Friends
                 Util.FireAndForget(
                     delegate
                     {
-                        m_log.DebugFormat(
-                            "[FRIENDS MODULE]: Notifying {0} friends of {1} of online status {2}",
-                            friendList.Count, agentID, online);
+//                        m_log.DebugFormat(
+//                            "[FRIENDS MODULE]: Notifying {0} friends of {1} of online status {2}",
+//                            friendList.Count, agentID, online);
 
                         // Notify about this user status
                         StatusNotify(friendList, agentID, online);
@@ -495,42 +496,36 @@ namespace OpenSim.Region.CoreModules.Avatar.Friends
 
         protected virtual void StatusNotify(List<FriendInfo> friendList, UUID userID, bool online)
         {
-            foreach (FriendInfo friend in friendList)
+            List<string> friendStringIds = friendList.ConvertAll<string>(friend => friend.Friend);
+            List<string> remoteFriendStringIds = new List<string>();
+            foreach (string friendStringId in friendStringIds)
             {
-                UUID friendID;
-                if (UUID.TryParse(friend.Friend, out friendID))
+                UUID friendUuid;
+                if (UUID.TryParse(friendStringId, out friendUuid))
                 {
-                    // Try local
-                    if (LocalStatusNotification(userID, friendID, online))
+                    if (LocalStatusNotification(userID, friendUuid, online))
                         continue;
 
-                    // The friend is not here [as root]. Let's forward.
-                    PresenceInfo[] friendSessions = PresenceService.GetAgents(new string[] { friendID.ToString() });
-                    if (friendSessions != null && friendSessions.Length > 0)
-                    {
-                        PresenceInfo friendSession = null;
-                        foreach (PresenceInfo pinfo in friendSessions)
-                        {
-                            if (pinfo.RegionID != UUID.Zero) // let's guard against sessions-gone-bad
-                            {
-                                friendSession = pinfo;
-                                break;
-                            }
-                        }
-
-                        if (friendSession != null)
-                        {
-                            GridRegion region = GridService.GetRegionByUUID(m_Scenes[0].RegionInfo.ScopeID, friendSession.RegionID);
-                            //m_log.DebugFormat("[FRIENDS]: Remote Notify to region {0}", region.RegionName);
-                            m_FriendsSimConnector.StatusNotify(region, userID, friendID, online);
-                        }
-                    }
-
-                    // Friend is not online. Ignore.
+                    remoteFriendStringIds.Add(friendStringId);
                 }
                 else
                 {
-                    m_log.WarnFormat("[FRIENDS]: Error parsing friend ID {0}", friend.Friend);
+                    m_log.WarnFormat("[FRIENDS]: Error parsing friend ID {0}", friendStringId);
+                }
+            }
+
+            // We do this regrouping so that we can efficiently send a single request rather than one for each
+            // friend in what may be a very large friends list.
+            PresenceInfo[] friendSessions = PresenceService.GetAgents(remoteFriendStringIds.ToArray());
+
+            foreach (PresenceInfo friendSession in friendSessions)
+            {
+                // let's guard against sessions-gone-bad
+                if (friendSession.RegionID != UUID.Zero)
+                {
+                    GridRegion region = GridService.GetRegionByUUID(m_Scenes[0].RegionInfo.ScopeID, friendSession.RegionID);
+                    //m_log.DebugFormat("[FRIENDS]: Remote Notify to region {0}", region.RegionName);
+                    m_FriendsSimConnector.StatusNotify(region, userID, friendSession.UserID, online);
                 }
             }
         }
diff --git a/OpenSim/Region/CoreModules/Avatar/Gods/GodsModule.cs b/OpenSim/Region/CoreModules/Avatar/Gods/GodsModule.cs
index 716cc69..82816d9 100644
--- a/OpenSim/Region/CoreModules/Avatar/Gods/GodsModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Gods/GodsModule.cs
@@ -206,7 +206,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Gods
                     transferModule.SendInstantMessage(new GridInstantMessage(
                             m_scene, godID, "God", agentID, (byte)250, false,
                             Utils.BytesToString(reason), UUID.Zero, true,
-                            new Vector3(), new byte[] {(byte)kickflags}),
+                            new Vector3(), new byte[] {(byte)kickflags}, true),
                             delegate(bool success) {} );
                 }
                 return;
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiveWriteRequest.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiveWriteRequest.cs
index 6587ead..d0e88f6 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiveWriteRequest.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiveWriteRequest.cs
@@ -166,7 +166,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Archiver
 
             if (options.ContainsKey("verbose"))
                 m_log.InfoFormat(
-                    "[INVENTORY ARCHIVER]: Saving item {0} {1} with asset {2}",
+                    "[INVENTORY ARCHIVER]: Saving item {0} {1} (asset UUID {2})",
                     inventoryItem.ID, inventoryItem.Name, inventoryItem.AssetID);
 
             string filename = path + CreateArchiveItemName(inventoryItem);
@@ -337,11 +337,14 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Archiver
                 {
                     m_log.DebugFormat("[INVENTORY ARCHIVER]: Saving {0} assets for items", m_assetUuids.Count);
 
-                    new AssetsRequest(
-                        new AssetsArchiver(m_archiveWriter),
-                        m_assetUuids, m_scene.AssetService,
-                        m_scene.UserAccountService, m_scene.RegionInfo.ScopeID,
-                        options, ReceivedAllAssets).Execute();
+                    AssetsRequest ar
+                        = new AssetsRequest(
+                            new AssetsArchiver(m_archiveWriter),
+                            m_assetUuids, m_scene.AssetService,
+                            m_scene.UserAccountService, m_scene.RegionInfo.ScopeID,
+                            options, ReceivedAllAssets);
+
+                    Util.FireAndForget(o => ar.Execute());
                 }
                 else
                 {
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiverModule.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiverModule.cs
index 7d1fe68..765b960 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiverModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiverModule.cs
@@ -35,6 +35,7 @@ using Nini.Config;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
+using OpenSim.Framework.Console;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
 using OpenSim.Services.Interfaces;
@@ -209,6 +210,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Archiver
             Guid id, string firstName, string lastName, string invPath, string pass, string savePath,
             Dictionary<string, object> options)
         {
+//            if (!ConsoleUtil.CheckFileDoesNotExist(MainConsole.Instance, savePath))
+//                return false;
+
             if (m_scenes.Count > 0)
             {
                 UserAccount userInfo = GetUserInfo(firstName, lastName, pass);
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiveTestCase.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiveTestCase.cs
index 1056865..00727a4 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiveTestCase.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiveTestCase.cs
@@ -82,7 +82,25 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Archiver.Tests
         
         protected string m_item1Name = "Ray Gun Item";
         protected string m_coaItemName = "Coalesced Item";
-        
+
+        [TestFixtureSetUp]
+        public void FixtureSetup()
+        {
+            // Don't allow tests to be bamboozled by asynchronous events.  Execute everything on the same thread.
+            Util.FireAndForgetMethod = FireAndForgetMethod.RegressionTest;
+
+            ConstructDefaultIarBytesForTestLoad();
+        }
+
+        [TestFixtureTearDown]
+        public void TearDown()
+        {
+            // We must set this back afterwards, otherwise later tests will fail since they're expecting multiple
+            // threads.  Possibly, later tests should be rewritten so none of them require async stuff (which regression
+            // tests really shouldn't).
+            Util.FireAndForgetMethod = Util.DefaultFireAndForgetMethod;
+        }
+
         [SetUp]
         public override void SetUp()
         {
@@ -90,12 +108,6 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Archiver.Tests
             m_iarStream = new MemoryStream(m_iarStreamBytes);
         }
         
-        [TestFixtureSetUp]
-        public void FixtureSetup()
-        {
-            ConstructDefaultIarBytesForTestLoad();
-        }
-        
         protected void ConstructDefaultIarBytesForTestLoad()
         {
 //            log4net.Config.XmlConfigurator.Configure();
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiverTests.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiverTests.cs
index b112b6d..06f6e49 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiverTests.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiverTests.cs
@@ -49,7 +49,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Archiver.Tests
 {
     [TestFixture]
     public class InventoryArchiverTests : InventoryArchiveTestCase
-    {   
+    {
         protected TestScene m_scene;
         protected InventoryArchiverModule m_archiverModule;
             
@@ -69,7 +69,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Archiver.Tests
         public void TestLoadCoalesecedItem()
         {
             TestHelpers.InMethod();
-//            log4net.Config.XmlConfigurator.Configure();
+//            TestHelpers.EnableLogging();
             
             UserAccountHelpers.CreateUserWithInventory(m_scene, m_uaLL1, "password");
             m_archiverModule.DearchiveInventory(m_uaLL1.FirstName, m_uaLL1.LastName, "/", "password", m_iarStream);            
@@ -350,38 +350,38 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Archiver.Tests
             Assert.That(sog1.RootPart.CreatorID, Is.EqualTo(m_uaLL1.PrincipalID));            
         }
         
-        /// <summary>
-        /// Test loading a V0.1 OpenSim Inventory Archive (subject to change since there is no fixed format yet) where
-        /// an account exists with the same name as the creator, though not the same id.
-        /// </summary>
-        [Test]
-        public void TestLoadIarV0_1SameNameCreator()
-        {
-            TestHelpers.InMethod();
-//            log4net.Config.XmlConfigurator.Configure();
-
-            UserAccountHelpers.CreateUserWithInventory(m_scene, m_uaMT, "meowfood");
-            UserAccountHelpers.CreateUserWithInventory(m_scene, m_uaLL2, "hampshire");
-            
-            m_archiverModule.DearchiveInventory(m_uaMT.FirstName, m_uaMT.LastName, "/", "meowfood", m_iarStream);            
-            InventoryItemBase foundItem1
-                = InventoryArchiveUtils.FindItemByPath(m_scene.InventoryService, m_uaMT.PrincipalID, m_item1Name);
-
-            Assert.That(
-                foundItem1.CreatorId, Is.EqualTo(m_uaLL2.PrincipalID.ToString()), 
-                "Loaded item non-uuid creator doesn't match original");            
-            Assert.That(
-                foundItem1.CreatorIdAsUuid, Is.EqualTo(m_uaLL2.PrincipalID), 
-                "Loaded item uuid creator doesn't match original");
-            Assert.That(foundItem1.Owner, Is.EqualTo(m_uaMT.PrincipalID),
-                "Loaded item owner doesn't match inventory reciever");
-            
-            AssetBase asset1 = m_scene.AssetService.Get(foundItem1.AssetID.ToString());            
-            string xmlData = Utils.BytesToString(asset1.Data);
-            SceneObjectGroup sog1 = SceneObjectSerializer.FromOriginalXmlFormat(xmlData);
-            
-            Assert.That(sog1.RootPart.CreatorID, Is.EqualTo(m_uaLL2.PrincipalID));
-        }
+//        /// <summary>
+//        /// Test loading a V0.1 OpenSim Inventory Archive (subject to change since there is no fixed format yet) where
+//        /// an account exists with the same name as the creator, though not the same id.
+//        /// </summary>
+//        [Test]
+//        public void TestLoadIarV0_1SameNameCreator()
+//        {
+//            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+//
+//            UserAccountHelpers.CreateUserWithInventory(m_scene, m_uaMT, "meowfood");
+//            UserAccountHelpers.CreateUserWithInventory(m_scene, m_uaLL2, "hampshire");
+//            
+//            m_archiverModule.DearchiveInventory(m_uaMT.FirstName, m_uaMT.LastName, "/", "meowfood", m_iarStream);            
+//            InventoryItemBase foundItem1
+//                = InventoryArchiveUtils.FindItemByPath(m_scene.InventoryService, m_uaMT.PrincipalID, m_item1Name);
+//
+//            Assert.That(
+//                foundItem1.CreatorId, Is.EqualTo(m_uaLL2.PrincipalID.ToString()), 
+//                "Loaded item non-uuid creator doesn't match original");            
+//            Assert.That(
+//                foundItem1.CreatorIdAsUuid, Is.EqualTo(m_uaLL2.PrincipalID), 
+//                "Loaded item uuid creator doesn't match original");
+//            Assert.That(foundItem1.Owner, Is.EqualTo(m_uaMT.PrincipalID),
+//                "Loaded item owner doesn't match inventory reciever");
+//            
+//            AssetBase asset1 = m_scene.AssetService.Get(foundItem1.AssetID.ToString());            
+//            string xmlData = Utils.BytesToString(asset1.Data);
+//            SceneObjectGroup sog1 = SceneObjectSerializer.FromOriginalXmlFormat(xmlData);
+//            
+//            Assert.That(sog1.RootPart.CreatorID, Is.EqualTo(m_uaLL2.PrincipalID));
+//        }
 
         /// <summary>
         /// Test loading a V0.1 OpenSim Inventory Archive (subject to change since there is no fixed format yet) where
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
index 8176989..e26beec 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
@@ -38,15 +38,15 @@ using OpenSim.Services.Interfaces;
 
 namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
 {
-    public class InventoryTransferModule : IInventoryTransferModule, ISharedRegionModule
+    public class InventoryTransferModule : ISharedRegionModule
     {
         private static readonly ILog m_log
             = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
         /// <summary>
         private List<Scene> m_Scenelist = new List<Scene>();
-        private Dictionary<UUID, Scene> m_AgentRegions =
-                new Dictionary<UUID, Scene>();
+//        private Dictionary<UUID, Scene> m_AgentRegions =
+//                new Dictionary<UUID, Scene>();
 
         private IMessageTransferModule m_TransferModule = null;
         private bool m_Enabled = true;
@@ -76,12 +76,12 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
 
             m_Scenelist.Add(scene);
 
-            scene.RegisterModuleInterface<IInventoryTransferModule>(this);
+//            scene.RegisterModuleInterface<IInventoryTransferModule>(this);
 
             scene.EventManager.OnNewClient += OnNewClient;
-            scene.EventManager.OnClientClosed += ClientLoggedOut;
+//            scene.EventManager.OnClientClosed += ClientLoggedOut;
             scene.EventManager.OnIncomingInstantMessage += OnGridInstantMessage;
-            scene.EventManager.OnSetRootAgentScene += OnSetRootAgentScene;
+//            scene.EventManager.OnSetRootAgentScene += OnSetRootAgentScene;
         }
 
         public void RegionLoaded(Scene scene)
@@ -96,9 +96,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
 
                     m_Scenelist.Clear();
                     scene.EventManager.OnNewClient -= OnNewClient;
-                    scene.EventManager.OnClientClosed -= ClientLoggedOut;
+//                    scene.EventManager.OnClientClosed -= ClientLoggedOut;
                     scene.EventManager.OnIncomingInstantMessage -= OnGridInstantMessage;
-                    scene.EventManager.OnSetRootAgentScene -= OnSetRootAgentScene;
+//                    scene.EventManager.OnSetRootAgentScene -= OnSetRootAgentScene;
                 }
             }
         }
@@ -106,9 +106,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
         public void RemoveRegion(Scene scene)
         {
             scene.EventManager.OnNewClient -= OnNewClient;
-            scene.EventManager.OnClientClosed -= ClientLoggedOut;
+//            scene.EventManager.OnClientClosed -= ClientLoggedOut;
             scene.EventManager.OnIncomingInstantMessage -= OnGridInstantMessage;
-            scene.EventManager.OnSetRootAgentScene -= OnSetRootAgentScene;
+//            scene.EventManager.OnSetRootAgentScene -= OnSetRootAgentScene;
             m_Scenelist.Remove(scene);
         }
 
@@ -138,10 +138,10 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
             client.OnInstantMessage += OnInstantMessage;
         }
         
-        protected void OnSetRootAgentScene(UUID id, Scene scene)
-        {
-            m_AgentRegions[id] = scene;
-        }
+//        protected void OnSetRootAgentScene(UUID id, Scene scene)
+//        {
+//            m_AgentRegions[id] = scene;
+//        }
 
         private Scene FindClientScene(UUID agentId)
         {
@@ -313,6 +313,11 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
                         m_TransferModule.SendInstantMessage(im, delegate(bool success) {});
                 }
             }
+
+            // XXX: This code was placed here to try and accomdate RLV which moves given folders named #RLV/~<name>
+            // to a folder called name in #RLV.  However, this approach may not be ultimately correct - from analysis
+            // of Firestorm 4.2.2 on sending an InventoryOffered instead of TaskInventoryOffered (as was previously
+            // done), the viewer itself would appear to move and rename the folder, rather than the simulator doing it here.
             else if (im.dialog == (byte) InstantMessageDialog.TaskInventoryAccepted)
             {
                 UUID destinationFolderID = UUID.Zero;
@@ -324,6 +329,16 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
 
                 if (destinationFolderID != UUID.Zero)
                 {
+                    InventoryFolderBase destinationFolder = new InventoryFolderBase(destinationFolderID, client.AgentId);
+                    if (destinationFolder == null)
+                    {
+                        m_log.WarnFormat(
+                            "[INVENTORY TRANSFER]: TaskInventoryAccepted message from {0} in {1} specified folder {2} which does not exist",
+                            client.Name, scene.Name, destinationFolderID);
+
+                        return;
+                    }
+
                     IInventoryService invService = scene.InventoryService;
 
                     UUID inventoryID = new UUID(im.imSessionID); // The inventory item/folder, back from it's trip
@@ -331,9 +346,11 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
                     InventoryItemBase item = new InventoryItemBase(inventoryID, client.AgentId);
                     item = invService.GetItem(item);
                     InventoryFolderBase folder = null;
+                    UUID? previousParentFolderID = null;
 
                     if (item != null) // It's an item
                     {
+                        previousParentFolderID = item.Folder;
                         item.Folder = destinationFolderID;
 
                         invService.DeleteItems(item.Owner, new List<UUID>() { item.ID });
@@ -346,10 +363,22 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
 
                         if (folder != null) // It's a folder
                         {
+                            previousParentFolderID = folder.ParentID;
                             folder.ParentID = destinationFolderID;
                             invService.MoveFolder(folder);
                         }
                     }
+
+                    // Tell client about updates to original parent and new parent (this should probably be factored with existing move item/folder code).
+                    if (previousParentFolderID != null)
+                    {
+                        InventoryFolderBase previousParentFolder
+                            = new InventoryFolderBase((UUID)previousParentFolderID, client.AgentId);
+                        previousParentFolder = invService.GetFolder(previousParentFolder);
+                        scene.SendInventoryUpdate(client, previousParentFolder, true, true);
+
+                        scene.SendInventoryUpdate(client, destinationFolder, true, true);
+                    }
                 }
             }
             else if (
@@ -370,9 +399,11 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
                 InventoryItemBase item = new InventoryItemBase(inventoryID, client.AgentId);
                 item = invService.GetItem(item);
                 InventoryFolderBase folder = null;
+                UUID? previousParentFolderID = null;
                 
                 if (item != null && trashFolder != null)
                 {
+                    previousParentFolderID = item.Folder;
                     item.Folder = trashFolder.ID;
 
                     // Diva comment: can't we just update this item???
@@ -388,6 +419,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
                     
                     if (folder != null & trashFolder != null)
                     {
+                        previousParentFolderID = folder.ParentID;
                         folder.ParentID = trashFolder.ID;
                         invService.MoveFolder(folder);
                         client.SendBulkUpdateInventory(folder);
@@ -408,6 +440,16 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
                     client.SendAgentAlertMessage("Unable to delete "+
                             "received inventory" + reason, false);
                 }
+                // Tell client about updates to original parent and new parent (this should probably be factored with existing move item/folder code).
+                else if (previousParentFolderID != null)
+                {
+                    InventoryFolderBase previousParentFolder
+                        = new InventoryFolderBase((UUID)previousParentFolderID, client.AgentId);
+                    previousParentFolder = invService.GetFolder(previousParentFolder);
+                    scene.SendInventoryUpdate(client, previousParentFolder, true, true);
+
+                    scene.SendInventoryUpdate(client, trashFolder, true, true);
+                }
 
                 if (im.dialog == (byte)InstantMessageDialog.InventoryDeclined)
                 {
@@ -426,69 +468,69 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
             }
         }
 
-        public bool NeedSceneCacheClear(UUID agentID, Scene scene)
-        {
-            if (!m_AgentRegions.ContainsKey(agentID))
-            {
-                // Since we can get here two ways, we need to scan
-                // the scenes here. This is somewhat more expensive
-                // but helps avoid a nasty bug
-                //
-
-                foreach (Scene s in m_Scenelist)
-                {
-                    ScenePresence presence;
-
-                    if (s.TryGetScenePresence(agentID, out presence))
-                    {
-                        // If the agent is in this scene, then we
-                        // are being called twice in a single
-                        // teleport. This is wasteful of cycles
-                        // but harmless due to this 2nd level check
-                        //
-                        // If the agent is found in another scene
-                        // then the list wasn't current
-                        //
-                        // If the agent is totally unknown, then what
-                        // are we even doing here??
-                        //
-                        if (s == scene)
-                        {
-                            //m_log.Debug("[INVTRANSFERMOD]: s == scene. Returning true in " + scene.RegionInfo.RegionName);
-                            return true;
-                        }
-                        else
-                        {
-                            //m_log.Debug("[INVTRANSFERMOD]: s != scene. Returning false in " + scene.RegionInfo.RegionName);
-                            return false;
-                        }
-                    }
-                }
-                //m_log.Debug("[INVTRANSFERMOD]: agent not in scene. Returning true in " + scene.RegionInfo.RegionName);
-                return true;
-            }
-
-            // The agent is left in current Scene, so we must be
-            // going to another instance
-            //
-            if (m_AgentRegions[agentID] == scene)
-            {
-                //m_log.Debug("[INVTRANSFERMOD]: m_AgentRegions[agentID] == scene. Returning true in " + scene.RegionInfo.RegionName);
-                m_AgentRegions.Remove(agentID);
-                return true;
-            }
-
-            // Another region has claimed the agent
-            //
-            //m_log.Debug("[INVTRANSFERMOD]: last resort. Returning false in " + scene.RegionInfo.RegionName);
-            return false;
-        }
-
-        public void ClientLoggedOut(UUID agentID, Scene scene)
-        {
-            if (m_AgentRegions.ContainsKey(agentID))
-                m_AgentRegions.Remove(agentID);
-        }
+//        public bool NeedSceneCacheClear(UUID agentID, Scene scene)
+//        {
+//            if (!m_AgentRegions.ContainsKey(agentID))
+//            {
+//                // Since we can get here two ways, we need to scan
+//                // the scenes here. This is somewhat more expensive
+//                // but helps avoid a nasty bug
+//                //
+//
+//                foreach (Scene s in m_Scenelist)
+//                {
+//                    ScenePresence presence;
+//
+//                    if (s.TryGetScenePresence(agentID, out presence))
+//                    {
+//                        // If the agent is in this scene, then we
+//                        // are being called twice in a single
+//                        // teleport. This is wasteful of cycles
+//                        // but harmless due to this 2nd level check
+//                        //
+//                        // If the agent is found in another scene
+//                        // then the list wasn't current
+//                        //
+//                        // If the agent is totally unknown, then what
+//                        // are we even doing here??
+//                        //
+//                        if (s == scene)
+//                        {
+//                            //m_log.Debug("[INVTRANSFERMOD]: s == scene. Returning true in " + scene.RegionInfo.RegionName);
+//                            return true;
+//                        }
+//                        else
+//                        {
+//                            //m_log.Debug("[INVTRANSFERMOD]: s != scene. Returning false in " + scene.RegionInfo.RegionName);
+//                            return false;
+//                        }
+//                    }
+//                }
+//                //m_log.Debug("[INVTRANSFERMOD]: agent not in scene. Returning true in " + scene.RegionInfo.RegionName);
+//                return true;
+//            }
+//
+//            // The agent is left in current Scene, so we must be
+//            // going to another instance
+//            //
+//            if (m_AgentRegions[agentID] == scene)
+//            {
+//                //m_log.Debug("[INVTRANSFERMOD]: m_AgentRegions[agentID] == scene. Returning true in " + scene.RegionInfo.RegionName);
+//                m_AgentRegions.Remove(agentID);
+//                return true;
+//            }
+//
+//            // Another region has claimed the agent
+//            //
+//            //m_log.Debug("[INVTRANSFERMOD]: last resort. Returning false in " + scene.RegionInfo.RegionName);
+//            return false;
+//        }
+//
+//        public void ClientLoggedOut(UUID agentID, Scene scene)
+//        {
+//            if (m_AgentRegions.ContainsKey(agentID))
+//                m_AgentRegions.Remove(agentID);
+//        }
 
         /// <summary>
         ///
diff --git a/OpenSim/Region/CoreModules/Avatar/Lure/HGLureModule.cs b/OpenSim/Region/CoreModules/Avatar/Lure/HGLureModule.cs
index 92cf9d1..9c369f6 100644
--- a/OpenSim/Region/CoreModules/Avatar/Lure/HGLureModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Lure/HGLureModule.cs
@@ -186,7 +186,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Lure
                     client.FirstName+" "+client.LastName, targetid,
                     (byte)InstantMessageDialog.RequestTeleport, false,
                     message, sessionID, false, presence.AbsolutePosition,
-                    new Byte[0]);
+                    new Byte[0], true);
             m.RegionID = client.Scene.RegionInfo.RegionID.Guid;
 
             m_log.DebugFormat("[HG LURE MODULE]: RequestTeleport sessionID={0}, regionID={1}, message={2}", m.imSessionID, m.RegionID, m.message);
diff --git a/OpenSim/Region/CoreModules/Avatar/Lure/LureModule.cs b/OpenSim/Region/CoreModules/Avatar/Lure/LureModule.cs
index a889984..1949459 100644
--- a/OpenSim/Region/CoreModules/Avatar/Lure/LureModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Lure/LureModule.cs
@@ -173,7 +173,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Lure
                         client.FirstName+" "+client.LastName, targetid,
                         (byte)InstantMessageDialog.GodLikeRequestTeleport, false,
                         message, dest, false, presence.AbsolutePosition,
-                        new Byte[0]);
+                        new Byte[0], true);
             }
             else
             {
@@ -181,7 +181,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Lure
                         client.FirstName+" "+client.LastName, targetid,
                         (byte)InstantMessageDialog.RequestTeleport, false,
                         message, dest, false, presence.AbsolutePosition,
-                        new Byte[0]);
+                        new Byte[0], true);
             }
 
             if (m_TransferModule != null)
diff --git a/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs b/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
index 880b2cc..31e6ce9 100644
--- a/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
@@ -327,6 +327,14 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                     return;
                 }
 
+                // Validate assorted conditions
+                string reason = string.Empty;
+                if (!ValidateGenericConditions(sp, reg, finalDestination, teleportFlags, out reason))
+                {
+                    sp.ControllingClient.SendTeleportFailed(reason);
+                    return;
+                }
+
                 //
                 // This is it
                 //
@@ -358,6 +366,13 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             }
         }
 
+        // Nothing to validate here
+        protected virtual bool ValidateGenericConditions(ScenePresence sp, GridRegion reg, GridRegion finalDestination, uint teleportFlags, out string reason)
+        {
+            reason = String.Empty;
+            return true;
+        }
+
         /// <summary>
         /// Determines whether this instance is within the max transfer distance.
         /// </summary>
@@ -473,10 +488,11 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             // both regions
             if (sp.ParentID != (uint)0)
                 sp.StandUp();
-
             else if (sp.Flying)
                 teleportFlags |= (uint)TeleportFlags.IsFlying;
 
+            // At least on LL 3.3.4, this is not strictly necessary - a teleport will succeed without sending this to
+            // the viewer.  However, it might mean that the viewer does not see the black teleport screen (untested).
             sp.ControllingClient.SendTeleportStart(teleportFlags);
 
             // the avatar.Close below will clear the child region list. We need this below for (possibly)
@@ -552,8 +568,11 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                     // So let's wait
                     Thread.Sleep(200);
 
+                    // At least on LL 3.3.4 for teleports between different regions on the same simulator this appears
+                    // unnecessary - teleport will succeed and SEED caps will be requested without it (though possibly
+                    // only on TeleportFinish).  This is untested for region teleport between different simulators
+                    // though this probably also works.
                     m_eqModule.EstablishAgentCommunication(sp.UUID, endPoint, capsPath);
-
                 }
                 else
                 {
@@ -574,7 +593,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
 
             //sp.ControllingClient.SendTeleportProgress(teleportFlags, "Updating agent...");
 
-            if (!UpdateAgent(reg, finalDestination, agent))
+            if (!UpdateAgent(reg, finalDestination, agent, sp))
             {
                 // Region doesn't take it
                 m_log.WarnFormat(
@@ -650,7 +669,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                 // an agent cannot teleport back to this region if it has teleported away.
                 Thread.Sleep(3000);
 
-                sp.Scene.IncomingCloseAgent(sp.UUID);
+                sp.Scene.IncomingCloseAgent(sp.UUID, false);
             }
             else
             {
@@ -658,13 +677,14 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                 sp.Reset();
             }
 
-            // REFACTORING PROBLEM. Well, not a problem, but this method is HORRIBLE!
-            if (sp.Scene.NeedSceneCacheClear(sp.UUID))
-            {
-                m_log.DebugFormat(
-                    "[ENTITY TRANSFER MODULE]: User {0} is going to another region, profile cache removed",
-                    sp.UUID);
-            }
+            // Commented pending deletion since this method no longer appears to do anything at all
+//            // REFACTORING PROBLEM. Well, not a problem, but this method is HORRIBLE!
+//            if (sp.Scene.NeedSceneCacheClear(sp.UUID))
+//            {
+//                m_log.DebugFormat(
+//                    "[ENTITY TRANSFER MODULE]: User {0} is going to another region, profile cache removed",
+//                    sp.UUID);
+//            }
 
             m_entityTransferStateMachine.ResetFromTransit(sp.UUID);
         }
@@ -701,7 +721,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             return success;
         }
 
-        protected virtual bool UpdateAgent(GridRegion reg, GridRegion finalDestination, AgentData agent)
+        protected virtual bool UpdateAgent(GridRegion reg, GridRegion finalDestination, AgentData agent, ScenePresence sp)
         {
             return Scene.SimulationService.UpdateAgent(finalDestination, agent);
         }
@@ -1013,6 +1033,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             Scene initiatingScene)
         {
             Thread.Sleep(10000);
+            
             IMessageTransferModule im = initiatingScene.RequestModuleInterface<IMessageTransferModule>();
             if (im != null)
             {
@@ -1025,11 +1046,22 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                     (uint)(int)position.X,
                     (uint)(int)position.Y,
                     (uint)(int)position.Z);
-                GridInstantMessage m = new GridInstantMessage(initiatingScene, UUID.Zero,
-                "Region", agent.UUID,
-                (byte)InstantMessageDialog.GodLikeRequestTeleport, false,
-                "", gotoLocation, false, new Vector3(127, 0, 0),
-                new Byte[0]);
+
+                GridInstantMessage m
+                    = new GridInstantMessage(
+                        initiatingScene,
+                        UUID.Zero,
+                        "Region",
+                        agent.UUID,
+                        (byte)InstantMessageDialog.GodLikeRequestTeleport,
+                        false,
+                        "",
+                        gotoLocation,
+                        false,
+                        new Vector3(127, 0, 0),
+                        new Byte[0],
+                        false);
+
                 im.SendInstantMessage(m, delegate(bool success)
                 {
                     m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Client Initiating Teleport sending IM success = {0}", success);
@@ -1191,11 +1223,11 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             // the user may change their profile information in other region,
             // so the userinfo in UserProfileCache is not reliable any more, delete it
             // REFACTORING PROBLEM. Well, not a problem, but this method is HORRIBLE!
-            if (agent.Scene.NeedSceneCacheClear(agent.UUID))
-            {
-                m_log.DebugFormat(
-                    "[ENTITY TRANSFER MODULE]: User {0} is going to another region", agent.UUID);
-            }
+//            if (agent.Scene.NeedSceneCacheClear(agent.UUID))
+//            {
+//                m_log.DebugFormat(
+//                    "[ENTITY TRANSFER MODULE]: User {0} is going to another region", agent.UUID);
+//            }
 
             //m_log.Debug("AFTER CROSS");
             //Scene.DumpChildrenSeeds(UUID);
diff --git a/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs b/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs
index 3010b59..b16c37a 100644
--- a/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs
@@ -54,6 +54,59 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
 
         private GatekeeperServiceConnector m_GatekeeperConnector;
 
+        protected bool m_RestrictAppearanceAbroad;
+        protected string m_AccountName;
+        protected List<AvatarAppearance> m_ExportedAppearances;
+        protected List<AvatarAttachment> m_Attachs;
+
+        protected List<AvatarAppearance> ExportedAppearance
+        {
+            get
+            {
+                if (m_ExportedAppearances != null)
+                    return m_ExportedAppearances;
+
+                m_ExportedAppearances = new List<AvatarAppearance>();
+                m_Attachs = new List<AvatarAttachment>();
+
+                string[] names = m_AccountName.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
+
+                foreach (string name in names)
+                {
+                    string[] parts = name.Trim().Split();
+                    if (parts.Length != 2)
+                    {
+                        m_log.WarnFormat("[HG ENTITY TRANSFER MODULE]: Wrong user account name format {0}. Specify 'First Last'", name);
+                        return null;
+                    }
+                    UserAccount account = Scene.UserAccountService.GetUserAccount(UUID.Zero, parts[0], parts[1]);
+                    if (account == null)
+                    {
+                        m_log.WarnFormat("[HG ENTITY TRANSFER MODULE]: Unknown account {0}", m_AccountName);
+                        return null;
+                    }
+                    AvatarAppearance a = Scene.AvatarService.GetAppearance(account.PrincipalID);
+                    if (a != null)
+                        m_log.DebugFormat("[HG ENTITY TRANSFER MODULE]: Successfully retrieved appearance for {0}", name);
+
+                    foreach (AvatarAttachment att in a.GetAttachments())
+                    {
+                        InventoryItemBase item = new InventoryItemBase(att.ItemID, account.PrincipalID);
+                        item = Scene.InventoryService.GetItem(item);
+                        if (item != null)
+                            a.SetAttachment(att.AttachPoint, att.ItemID, item.AssetID);
+                        else
+                            m_log.WarnFormat("[HG ENTITY TRANSFER MODULE]: Unable to retrieve item {0} from inventory {1}", att.ItemID, name);
+                    }
+
+                    m_ExportedAppearances.Add(a);
+                    m_Attachs.AddRange(a.GetAttachments());
+                }
+
+                return m_ExportedAppearances;
+            }
+        }
+
         #region ISharedRegionModule
 
         public override string Name
@@ -72,8 +125,18 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                 {
                     IConfig transferConfig = source.Configs["EntityTransfer"];
                     if (transferConfig != null)
+                    {
                         m_levelHGTeleport = transferConfig.GetInt("LevelHGTeleport", 0);
 
+                        m_RestrictAppearanceAbroad = transferConfig.GetBoolean("RestrictAppearanceAbroad", false);
+                        if (m_RestrictAppearanceAbroad)
+                        {
+                            m_AccountName = transferConfig.GetString("AccountForAppearance", string.Empty);
+                            if (m_AccountName == string.Empty)
+                                m_log.WarnFormat("[HG ENTITY TRANSFER MODULE]: RestrictAppearanceAbroad is on, but no account has been given for avatar appearance!");
+                        }
+                    }
+
                     InitialiseCommon(source);
                     m_log.DebugFormat("[HG ENTITY TRANSFER MODULE]: {0} enabled.", Name);
                 }
@@ -85,7 +148,36 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             base.AddRegion(scene);
 
             if (m_Enabled)
+            {
                 scene.RegisterModuleInterface<IUserAgentVerificationModule>(this);
+                scene.EventManager.OnIncomingSceneObject += OnIncomingSceneObject;
+            }
+        }
+
+        void OnIncomingSceneObject(SceneObjectGroup so)
+        {
+            if (!so.IsAttachment)
+                return;
+
+            if (so.Scene.UserManagementModule.IsLocalGridUser(so.AttachedAvatar))
+                return;
+
+            // foreign user
+            AgentCircuitData aCircuit = so.Scene.AuthenticateHandler.GetAgentCircuitData(so.AttachedAvatar);
+            if (aCircuit != null && (aCircuit.teleportFlags & (uint)Constants.TeleportFlags.ViaHGLogin) != 0)
+            {
+                if (aCircuit.ServiceURLs != null && aCircuit.ServiceURLs.ContainsKey("AssetServerURI"))
+                {
+                    string url = aCircuit.ServiceURLs["AssetServerURI"].ToString();
+                    m_log.DebugFormat("[HG ENTITY TRANSFER MODULE]: Incoming attachement {0} for HG user {1} with asset server {2}", so.Name, so.AttachedAvatar, url);
+                    Dictionary<UUID, AssetType> ids = new Dictionary<UUID, AssetType>();
+                    HGUuidGatherer uuidGatherer = new HGUuidGatherer(so.Scene.AssetService, url);
+                    uuidGatherer.GatherAssetUuids(so, ids);
+
+                    foreach (KeyValuePair<UUID, AssetType> kvp in ids)
+                        uuidGatherer.FetchAsset(kvp.Key);
+                }
+            }
         }
 
         protected override void OnNewClient(IClientAPI client)
@@ -120,7 +212,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             int flags = Scene.GridService.GetRegionFlags(Scene.RegionInfo.ScopeID, region.RegionID);
             m_log.DebugFormat("[HG ENTITY TRANSFER MODULE]: region {0} flags: {1}", region.RegionID, flags);
 
-            if ((flags & (int)OpenSim.Data.RegionFlags.Hyperlink) != 0)
+            if ((flags & (int)OpenSim.Framework.RegionFlags.Hyperlink) != 0)
             {
                 m_log.DebugFormat("[HG ENTITY TRANSFER MODULE]: Destination region {0} is hyperlink", region.RegionID);
                 GridRegion real_destination = m_GatekeeperConnector.GetHyperlinkRegion(region, region.RegionID);
@@ -140,7 +232,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                 return true;
 
             int flags = Scene.GridService.GetRegionFlags(Scene.RegionInfo.ScopeID, reg.RegionID);
-            if (flags == -1 /* no region in DB */ || (flags & (int)OpenSim.Data.RegionFlags.Hyperlink) != 0)
+            if (flags == -1 /* no region in DB */ || (flags & (int)OpenSim.Framework.RegionFlags.Hyperlink) != 0)
                 return true;
 
             return false;
@@ -153,6 +245,8 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             {
                 // Log them out of this grid
                 Scene.PresenceService.LogoutAgent(sp.ControllingClient.SessionId);
+                string userId = Scene.UserManagementModule.GetUserUUI(sp.UUID);
+                Scene.GridUserService.LoggedOut(userId, UUID.Zero, Scene.RegionInfo.RegionID, sp.AbsolutePosition, sp.Lookat);
             }
         }
 
@@ -162,11 +256,11 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             reason = string.Empty;
             logout = false;
             int flags = Scene.GridService.GetRegionFlags(Scene.RegionInfo.ScopeID, reg.RegionID);
-            if (flags == -1 /* no region in DB */ || (flags & (int)OpenSim.Data.RegionFlags.Hyperlink) != 0)
+            if (flags == -1 /* no region in DB */ || (flags & (int)OpenSim.Framework.RegionFlags.Hyperlink) != 0)
             {
                 // this user is going to another grid
-                // check if HyperGrid teleport is allowed, based on user level
-                if (sp.UserLevel < m_levelHGTeleport)
+                // for local users, check if HyperGrid teleport is allowed, based on user level
+                if (Scene.UserManagementModule.IsLocalGridUser(sp.UUID) && sp.UserLevel < m_levelHGTeleport)
                 {
                     m_log.WarnFormat("[HG ENTITY TRANSFER MODULE]: Unable to HG teleport agent due to insufficient UserLevel.");
                     reason = "Hypergrid teleport not allowed";
@@ -200,6 +294,124 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             TeleportHome(id, client);
         }
 
+        protected override bool ValidateGenericConditions(ScenePresence sp, GridRegion reg, GridRegion finalDestination, uint teleportFlags, out string reason)
+        {
+            reason = "Please wear your grid's allowed appearance before teleporting to another grid";
+            if (!m_RestrictAppearanceAbroad)
+                return true;
+
+            // The rest is only needed for controlling appearance
+
+            int flags = Scene.GridService.GetRegionFlags(Scene.RegionInfo.ScopeID, reg.RegionID);
+            if (flags == -1 /* no region in DB */ || (flags & (int)OpenSim.Framework.RegionFlags.Hyperlink) != 0)
+            {
+                // this user is going to another grid
+                if (Scene.UserManagementModule.IsLocalGridUser(sp.UUID))
+                {
+                    m_log.DebugFormat("[HG ENTITY TRANSFER MODULE]: RestrictAppearanceAbroad is ON. Checking generic appearance");
+
+                    // Check wearables
+                    for (int i = 0; i < AvatarWearable.MAX_WEARABLES; i++)
+                    {
+                        for (int j = 0; j < sp.Appearance.Wearables[i].Count; j++)
+                        {
+                            if (sp.Appearance.Wearables[i] == null)
+                                continue;
+
+                            bool found = false;
+                            foreach (AvatarAppearance a in ExportedAppearance)
+                                if (a.Wearables[i] != null)
+                                {
+                                    found = true;
+                                    break;
+                                }
+
+                            if (!found) 
+                            {
+                               m_log.DebugFormat("[HG ENTITY TRANSFER MODULE]: Wearable not allowed to go outside {0}", i);
+                               return false;
+                            }
+
+                            found = false;
+                            foreach (AvatarAppearance a in ExportedAppearance)
+                                if (sp.Appearance.Wearables[i][j].AssetID == a.Wearables[i][j].AssetID)
+                                {
+                                    found = true;
+                                    break;
+                                }
+
+                            if (!found)
+                            {
+                                m_log.DebugFormat("[HG ENTITY TRANSFER MODULE]: Wearable not allowed to go outside {0}", i);
+                                return false;
+                            }
+                        }
+                    }
+
+                    // Check attachments
+                    foreach (AvatarAttachment att in sp.Appearance.GetAttachments())
+                    {
+                        bool found = false;
+                        foreach (AvatarAttachment att2 in m_Attachs)
+                        {
+                            if (att2.AssetID == att.AssetID)
+                            {
+                                found = true;
+                                break;
+                            }
+                        }
+                        if (!found)
+                        {
+                            m_log.DebugFormat("[HG ENTITY TRANSFER MODULE]: Attachment not allowed to go outside {0}", att.AttachPoint);
+                            return false;
+                        }
+                    }
+                }
+            }
+
+            reason = string.Empty;
+            return true;
+        }
+
+
+        //protected override bool UpdateAgent(GridRegion reg, GridRegion finalDestination, AgentData agentData, ScenePresence sp)
+        //{
+        //    int flags = Scene.GridService.GetRegionFlags(Scene.RegionInfo.ScopeID, reg.RegionID);
+        //    if (flags == -1 /* no region in DB */ || (flags & (int)OpenSim.Data.RegionFlags.Hyperlink) != 0)
+        //    {
+        //        // this user is going to another grid
+        //        if (m_RestrictAppearanceAbroad && Scene.UserManagementModule.IsLocalGridUser(agentData.AgentID))
+        //        {
+        //            // We need to strip the agent off its appearance
+        //            m_log.DebugFormat("[HG ENTITY TRANSFER MODULE]: RestrictAppearanceAbroad is ON. Sending generic appearance");
+
+        //            // Delete existing npc attachments
+        //            Scene.AttachmentsModule.DeleteAttachmentsFromScene(sp, false);
+
+        //            // XXX: We can't just use IAvatarFactoryModule.SetAppearance() yet since it doesn't transfer attachments
+        //            AvatarAppearance newAppearance = new AvatarAppearance(ExportedAppearance, true);
+        //            sp.Appearance = newAppearance;
+
+        //            // Rez needed npc attachments
+        //            Scene.AttachmentsModule.RezAttachments(sp);
+
+                   
+        //            IAvatarFactoryModule module = Scene.RequestModuleInterface<IAvatarFactoryModule>();
+        //            //module.SendAppearance(sp.UUID);
+        //            module.RequestRebake(sp, false);
+
+        //            Scene.AttachmentsModule.CopyAttachments(sp, agentData);
+        //            agentData.Appearance = sp.Appearance;
+        //        }
+        //    }
+
+        //    foreach (AvatarAttachment a in agentData.Appearance.GetAttachments())
+        //        m_log.DebugFormat("[XXX]: {0}-{1}", a.ItemID, a.AssetID);
+
+
+        //    return base.UpdateAgent(reg, finalDestination, agentData, sp);
+        //}
+
         public override bool TeleportHome(UUID id, IClientAPI client)
         {
             m_log.DebugFormat(
@@ -375,4 +587,4 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             return region;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/OpenSim/Region/CoreModules/Framework/InventoryAccess/HGAssetMapper.cs b/OpenSim/Region/CoreModules/Framework/InventoryAccess/HGAssetMapper.cs
index eaadc1b..f8ec6de 100644
--- a/OpenSim/Region/CoreModules/Framework/InventoryAccess/HGAssetMapper.cs
+++ b/OpenSim/Region/CoreModules/Framework/InventoryAccess/HGAssetMapper.cs
@@ -71,19 +71,19 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
 
         #region Internal functions
 
-        public AssetBase FetchAsset(string url, UUID assetID)
+        public AssetMetadata FetchMetadata(string url, UUID assetID)
         {
             if (!url.EndsWith("/") && !url.EndsWith("="))
                 url = url + "/";
 
-            AssetBase asset = m_scene.AssetService.Get(url + assetID.ToString());
+            AssetMetadata meta = m_scene.AssetService.GetMetadata(url + assetID.ToString());
 
-            if (asset != null)
-            {
-                m_log.DebugFormat("[HG ASSET MAPPER]: Copied asset {0} from {1} to local asset server. ", asset.ID, url);
-                return asset;
-            }
-            return null;
+            if (meta != null)
+                m_log.DebugFormat("[HG ASSET MAPPER]: Fetched metadata for asset {0} of type {1} from {2} ", assetID, meta.Type, url);
+            else
+                m_log.DebugFormat("[HG ASSET MAPPER]: Unable to fetched metadata for asset {0} from {1} ", assetID, url);
+
+            return meta;
         }
 
         public bool PostAsset(string url, AssetBase asset)
@@ -93,6 +93,7 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
                 if (!url.EndsWith("/") && !url.EndsWith("="))
                     url = url + "/";
 
+                bool success = true;
                 // See long comment in AssetCache.AddAsset
                 if (!asset.Temporary || asset.Local)
                 {
@@ -103,14 +104,7 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
                     // not having a global naming infrastructure
                     AssetBase asset1 = new AssetBase(asset.FullID, asset.Name, asset.Type, asset.Metadata.CreatorID);
                     Copy(asset, asset1);
-                    try
-                    {
-                        asset1.ID = url + asset.ID;
-                    }
-                    catch
-                    {
-                        m_log.Warn("[HG ASSET MAPPER]: Oops.");
-                    }
+                    asset1.ID = url + asset.ID;
 
                     AdjustIdentifiers(asset1.Metadata);
                     if (asset1.Metadata.Type == (sbyte)AssetType.Object)
@@ -118,11 +112,17 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
                     else
                         asset1.Data = asset.Data;
 
-                    m_scene.AssetService.Store(asset1);
-                    m_log.DebugFormat("[HG ASSET MAPPER]: Posted copy of asset {0} from local asset server to {1}", asset1.ID, url);
+                    string id = m_scene.AssetService.Store(asset1);
+                    if (id == string.Empty)
+                    {
+                        m_log.DebugFormat("[HG ASSET MAPPER]: Asset server {0} did not accept {1}", url, asset.ID);
+                        success = false;
+                    }
+                    else
+                        m_log.DebugFormat("[HG ASSET MAPPER]: Posted copy of asset {0} from local asset server to {1}", asset1.ID, url);
                 }
-                return true;
-           }
+                return success;
+            }
             else
                 m_log.Warn("[HG ASSET MAPPER]: Tried to post asset to remote server, but asset not in local cache.");
 
@@ -222,28 +222,17 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
 
         public void Get(UUID assetID, UUID ownerID, string userAssetURL)
         {
-            // Get the item from the remote asset server onto the local AssetCache
-            // and place an entry in m_assetMap
-
-            m_log.Debug("[HG ASSET MAPPER]: Fetching object " + assetID + " from asset server " + userAssetURL);
-            AssetBase asset = FetchAsset(userAssetURL, assetID); 
+            // Get the item from the remote asset server onto the local AssetService
 
-            if (asset != null)
-            {
-                // OK, now fetch the inside.
-                Dictionary<UUID, AssetType> ids = new Dictionary<UUID, AssetType>();
-                HGUuidGatherer uuidGatherer = new HGUuidGatherer(this, m_scene.AssetService, userAssetURL);
-                uuidGatherer.GatherAssetUuids(asset.FullID, (AssetType)asset.Type, ids);
-                if (ids.ContainsKey(assetID))
-                    ids.Remove(assetID);
-                foreach (UUID uuid in ids.Keys)
-                    FetchAsset(userAssetURL, uuid);
+            AssetMetadata meta = FetchMetadata(userAssetURL, assetID);
+            if (meta == null)
+                return;
 
-                m_log.DebugFormat("[HG ASSET MAPPER]: Successfully fetched asset {0} from asset server {1}", asset.ID, userAssetURL);
+            // The act of gathering UUIDs downloads the assets from the remote server
+            Dictionary<UUID, AssetType> ids = new Dictionary<UUID, AssetType>();
+            HGUuidGatherer uuidGatherer = new HGUuidGatherer(m_scene.AssetService, userAssetURL);
+            uuidGatherer.GatherAssetUuids(assetID, (AssetType)meta.Type, ids);
 
-            }
-            else
-                m_log.Warn("[HG ASSET MAPPER]: Could not fetch asset from remote asset server " + userAssetURL);
         }
 
 
@@ -257,19 +246,23 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
             if (asset != null)
             {
                 Dictionary<UUID, AssetType> ids = new Dictionary<UUID, AssetType>();
-                HGUuidGatherer uuidGatherer = new HGUuidGatherer(this, m_scene.AssetService, string.Empty);
+                HGUuidGatherer uuidGatherer = new HGUuidGatherer(m_scene.AssetService, string.Empty);
                 uuidGatherer.GatherAssetUuids(asset.FullID, (AssetType)asset.Type, ids);
+                bool success = false;
                 foreach (UUID uuid in ids.Keys)
                 {
                     asset = m_scene.AssetService.Get(uuid.ToString());
                     if (asset == null)
                         m_log.DebugFormat("[HG ASSET MAPPER]: Could not find asset {0}", uuid);
                     else
-                        PostAsset(userAssetURL, asset);
+                        success = PostAsset(userAssetURL, asset);
                 }
 
-                 // maybe all pieces got there...
-                m_log.DebugFormat("[HG ASSET MAPPER]: Successfully posted item {0} to asset server {1}", assetID, userAssetURL);
+                // maybe all pieces got there...
+                if (!success)
+                    m_log.DebugFormat("[HG ASSET MAPPER]: Problems posting item {0} to asset server {1}", assetID, userAssetURL);
+                else
+                    m_log.DebugFormat("[HG ASSET MAPPER]: Successfully posted item {0} to asset server {1}", assetID, userAssetURL);
 
             }
             else
diff --git a/OpenSim/Region/CoreModules/Framework/InventoryAccess/HGInventoryAccessModule.cs b/OpenSim/Region/CoreModules/Framework/InventoryAccess/HGInventoryAccessModule.cs
index cf72b58..6bb758e 100644
--- a/OpenSim/Region/CoreModules/Framework/InventoryAccess/HGInventoryAccessModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/InventoryAccess/HGInventoryAccessModule.cs
@@ -92,7 +92,7 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
                         m_HomeURI = thisModuleConfig.GetString("HomeURI", m_HomeURI);
                         m_OutboundPermission = thisModuleConfig.GetBoolean("OutboundPermission", true);
                         m_ThisGatekeeper = thisModuleConfig.GetString("Gatekeeper", string.Empty);
-                        m_RestrictInventoryAccessAbroad = thisModuleConfig.GetBoolean("RestrictInventoryAccessAbroad", false);
+                        m_RestrictInventoryAccessAbroad = thisModuleConfig.GetBoolean("RestrictInventoryAccessAbroad", true);
                     }
                     else
                         m_log.Warn("[HG INVENTORY ACCESS MODULE]: HGInventoryAccessModule configs not found. ProfileServerURI not set!");
@@ -263,8 +263,13 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
             //}
 
             // OK, we're done fetching. Pass it up to the default RezObject
-            return base.RezObject(remoteClient, itemID, RayEnd, RayStart, RayTargetID, BypassRayCast, RayEndIsIntersection,
-                                  RezSelected, RemoveItem, fromTaskID, attachment);
+            SceneObjectGroup sog = base.RezObject(remoteClient, itemID, RayEnd, RayStart, RayTargetID, BypassRayCast, RayEndIsIntersection,
+                                   RezSelected, RemoveItem, fromTaskID, attachment);
+
+            if (sog == null)
+                remoteClient.SendAgentAlertMessage("Unable to rez: problem accessing inventory or locating assets", false);
+
+            return sog;
 
         }
 
@@ -308,6 +313,8 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
         protected override InventoryItemBase GetItem(UUID agentID, UUID itemID)
         {
             InventoryItemBase item = base.GetItem(agentID, itemID);
+            if (item == null)
+                return null;
 
             string userAssetServer = string.Empty;
             if (IsForeignUser(agentID, out userAssetServer))
@@ -344,6 +351,7 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
 
         private void ProcessInventoryForArriving(IClientAPI client)
         {
+            // No-op for now, but we may need to do something for freign users inventory
         }
 
         //
@@ -390,6 +398,7 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
 
         private void ProcessInventoryForLeaving(IClientAPI client)
         {
+            // No-op for now
         }
 
         #endregion
diff --git a/OpenSim/Region/CoreModules/Framework/Monitoring/MonitorModule.cs b/OpenSim/Region/CoreModules/Framework/Monitoring/MonitorModule.cs
index e135c21..e411585 100644
--- a/OpenSim/Region/CoreModules/Framework/Monitoring/MonitorModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/Monitoring/MonitorModule.cs
@@ -95,14 +95,14 @@ namespace OpenSim.Region.CoreModules.Framework.Monitoring
         {
             foreach (IMonitor monitor in m_staticMonitors)
             {
-                m_log.InfoFormat(
+                MainConsole.Instance.OutputFormat(
                     "[MONITOR MODULE]: {0} reports {1} = {2}",
                     m_scene.RegionInfo.RegionName, monitor.GetFriendlyName(), monitor.GetFriendlyValue());
             }
 
             foreach (KeyValuePair<string, float> tuple in m_scene.StatsReporter.GetExtraSimStats())
             {
-                m_log.InfoFormat(
+                MainConsole.Instance.OutputFormat(
                     "[MONITOR MODULE]: {0} reports {1} = {2}",
                     m_scene.RegionInfo.RegionName, tuple.Key, tuple.Value);
             }
diff --git a/OpenSim/Region/CoreModules/Framework/Statistics/Logging/LogWriter.cs b/OpenSim/Region/CoreModules/Framework/Statistics/Logging/LogWriter.cs
index 65e4c90..fd8d5e3 100755
--- a/OpenSim/Region/CoreModules/Framework/Statistics/Logging/LogWriter.cs
+++ b/OpenSim/Region/CoreModules/Framework/Statistics/Logging/LogWriter.cs
@@ -1,161 +1,170 @@
-/*

- * Copyright (c) Contributors, http://opensimulator.org/

- * See CONTRIBUTORS.TXT for a full list of copyright holders.

- *

- * Redistribution and use in source and binary forms, with or without

- * modification, are permitted provided that the following conditions are met:

- *     * Redistributions of source code must retain the above copyright

- *       notice, this list of conditions and the following disclaimer.

- *     * Redistributions in binary form must reproduce the above copyright

- *       notice, this list of conditions and the following disclaimer in the

- *       documentation and/or other materials provided with the distribution.

- *     * Neither the name of the OpenSimulator Project nor the

- *       names of its contributors may be used to endorse or promote products

- *       derived from this software without specific prior written permission.

- *

- * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY

- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

- * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY

- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

- */

-

-using System;

-using System.IO;

-using System.Text;

-using log4net;

-

-namespace OpenSim.Region.CoreModules.Framework.Statistics.Logging

-{

-    /// <summary>

-    /// Class for writing a high performance, high volume log file.

-    /// Sometimes, to debug, one has a high volume logging to do and the regular

-    /// log file output is not appropriate.

-    /// Create a new instance with the parameters needed and

-    /// call Write() to output a line. Call Close() when finished.

-    /// If created with no parameters, it will not log anything.

-    /// </summary>

-    public class LogWriter : IDisposable

-    {

-        public bool Enabled { get; private set; }

-

-        private string m_logDirectory = ".";

-        private int m_logMaxFileTimeMin = 5;    // 5 minutes

-        public String LogFileHeader { get; set; }

-

-        private StreamWriter m_logFile = null;

-        private TimeSpan m_logFileLife;

-        private DateTime m_logFileEndTime;

-        private Object m_logFileWriteLock = new Object();

-

-        // set externally when debugging. If let 'null', this does not write any error messages.

-        public ILog ErrorLogger = null;

-        private string LogHeader = "[LOG WRITER]";

-

-        /// <summary>

-        /// Create a log writer that will not write anything. Good for when not enabled

-        /// but the write statements are still in the code.

-        /// </summary>

-        public LogWriter()

-        {

-            Enabled = false;

-            m_logFile = null;

-        }

-

-        /// <summary>

-        /// Create a log writer instance.

-        /// </summary>

-        /// <param name="dir">The directory to create the log file in. May be 'null' for default.</param>

-        /// <param name="headr">The characters that begin the log file name. May be 'null' for default.</param>

-        /// <param name="maxFileTime">Maximum age of a log file in minutes. If zero, will set default.</param>

-        public LogWriter(string dir, string headr, int maxFileTime)

-        {

-            m_logDirectory = dir == null ? "." : dir;

-

-            LogFileHeader = headr == null ? "log-" : headr;

-

-            m_logMaxFileTimeMin = maxFileTime;

-            if (m_logMaxFileTimeMin < 1)

-                m_logMaxFileTimeMin = 5;

-

-            m_logFileLife = new TimeSpan(0, m_logMaxFileTimeMin, 0);

-            m_logFileEndTime = DateTime.Now + m_logFileLife;

-

-            Enabled = true;

-        }

-

-        public void Dispose()

-        {

-            this.Close();

-        }

-

-        public void Close()

-        {

-            Enabled = false;

-            if (m_logFile != null)

-            {

-                m_logFile.Close();

-                m_logFile.Dispose();

-                m_logFile = null;

-            }

-        }

-

-        public void Write(string line, params object[] args)

-        {

-            if (!Enabled) return;

-            Write(String.Format(line, args));

-        }

-

-        public void Write(string line)

-        {

-            if (!Enabled) return;

-            try

-            {

-                lock (m_logFileWriteLock)

-                {

-                    DateTime now = DateTime.Now;

-                    if (m_logFile == null || now > m_logFileEndTime)

-                    {

-                        if (m_logFile != null)

-                        {

-                            m_logFile.Close();

-                            m_logFile.Dispose();

-                            m_logFile = null;

-                        }

-

-                        // First log file or time has expired, start writing to a new log file

-                        m_logFileEndTime = now + m_logFileLife;

-                        string path = (m_logDirectory.Length > 0 ? m_logDirectory

-                                    + System.IO.Path.DirectorySeparatorChar.ToString() : "")

-                                + String.Format("{0}{1}.log", LogFileHeader, now.ToString("yyyyMMddHHmmss"));

-                        m_logFile = new StreamWriter(File.Open(path, FileMode.Append, FileAccess.Write));

-                    }

-                    if (m_logFile != null)

-                    {

-                        StringBuilder buff = new StringBuilder(line.Length + 25);

-                        buff.Append(now.ToString("yyyyMMddHHmmssfff"));

-                        // buff.Append(now.ToString("yyyyMMddHHmmss"));

-                        buff.Append(",");

-                        buff.Append(line);

-                        buff.Append("\r\n");

-                        m_logFile.Write(buff.ToString());

-                    }

-                }

-            }

-            catch (Exception e)

-            {

-                if (ErrorLogger != null)

-                {

-                    ErrorLogger.ErrorFormat("{0}: FAILURE WRITING TO LOGFILE: {1}", LogHeader, e);

-                }

-                Enabled = false;

-            }

-            return;

-        }

-    }

-}
\ No newline at end of file
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.IO;
+using System.Text;
+using log4net;
+
+namespace OpenSim.Region.CoreModules.Framework.Statistics.Logging
+{
+    /// <summary>
+    /// Class for writing a high performance, high volume log file.
+    /// Sometimes, to debug, one has a high volume logging to do and the regular
+    /// log file output is not appropriate.
+    /// Create a new instance with the parameters needed and
+    /// call Write() to output a line. Call Close() when finished.
+    /// If created with no parameters, it will not log anything.
+    /// </summary>
+    public class LogWriter : IDisposable
+    {
+        public bool Enabled { get; private set; }
+
+        private string m_logDirectory = ".";
+        private int m_logMaxFileTimeMin = 5;    // 5 minutes
+        public String LogFileHeader { get; set; }
+
+        private StreamWriter m_logFile = null;
+        private TimeSpan m_logFileLife;
+        private DateTime m_logFileEndTime;
+        private Object m_logFileWriteLock = new Object();
+
+        // set externally when debugging. If let 'null', this does not write any error messages.
+        public ILog ErrorLogger = null;
+        private string LogHeader = "[LOG WRITER]";
+
+        /// <summary>
+        /// Create a log writer that will not write anything. Good for when not enabled
+        /// but the write statements are still in the code.
+        /// </summary>
+        public LogWriter()
+        {
+            Enabled = false;
+            m_logFile = null;
+        }
+
+        /// <summary>
+        /// Create a log writer instance.
+        /// </summary>
+        /// <param name="dir">The directory to create the log file in. May be 'null' for default.</param>
+        /// <param name="headr">The characters that begin the log file name. May be 'null' for default.</param>
+        /// <param name="maxFileTime">Maximum age of a log file in minutes. If zero, will set default.</param>
+        public LogWriter(string dir, string headr, int maxFileTime)
+        {
+            m_logDirectory = dir == null ? "." : dir;
+
+            LogFileHeader = headr == null ? "log-" : headr;
+
+            m_logMaxFileTimeMin = maxFileTime;
+            if (m_logMaxFileTimeMin < 1)
+                m_logMaxFileTimeMin = 5;
+
+            m_logFileLife = new TimeSpan(0, m_logMaxFileTimeMin, 0);
+            m_logFileEndTime = DateTime.Now + m_logFileLife;
+
+            Enabled = true;
+        }
+
+        public void Dispose()
+        {
+            this.Close();
+        }
+
+        public void Close()
+        {
+            Enabled = false;
+            if (m_logFile != null)
+            {
+                m_logFile.Close();
+                m_logFile.Dispose();
+                m_logFile = null;
+            }
+        }
+
+        public void Write(string line, params object[] args)
+        {
+            if (!Enabled) return;
+            Write(String.Format(line, args));
+        }
+
+        public void Flush()
+        {
+            if (!Enabled) return;
+            if (m_logFile != null)
+            {
+                m_logFile.Flush();
+            }
+        }
+
+        public void Write(string line)
+        {
+            if (!Enabled) return;
+            try
+            {
+                lock (m_logFileWriteLock)
+                {
+                    DateTime now = DateTime.Now;
+                    if (m_logFile == null || now > m_logFileEndTime)
+                    {
+                        if (m_logFile != null)
+                        {
+                            m_logFile.Close();
+                            m_logFile.Dispose();
+                            m_logFile = null;
+                        }
+
+                        // First log file or time has expired, start writing to a new log file
+                        m_logFileEndTime = now + m_logFileLife;
+                        string path = (m_logDirectory.Length > 0 ? m_logDirectory
+                                    + System.IO.Path.DirectorySeparatorChar.ToString() : "")
+                                + String.Format("{0}{1}.log", LogFileHeader, now.ToString("yyyyMMddHHmmss"));
+                        m_logFile = new StreamWriter(File.Open(path, FileMode.Append, FileAccess.Write));
+                    }
+                    if (m_logFile != null)
+                    {
+                        StringBuilder buff = new StringBuilder(line.Length + 25);
+                        buff.Append(now.ToString("yyyyMMddHHmmssfff"));
+                        // buff.Append(now.ToString("yyyyMMddHHmmss"));
+                        buff.Append(",");
+                        buff.Append(line);
+                        buff.Append("\r\n");
+                        m_logFile.Write(buff.ToString());
+                    }
+                }
+            }
+            catch (Exception e)
+            {
+                if (ErrorLogger != null)
+                {
+                    ErrorLogger.ErrorFormat("{0}: FAILURE WRITING TO LOGFILE: {1}", LogHeader, e);
+                }
+                Enabled = false;
+            }
+            return;
+        }
+    }
+}
diff --git a/OpenSim/Region/CoreModules/Framework/UserManagement/HGUserManagementModule.cs b/OpenSim/Region/CoreModules/Framework/UserManagement/HGUserManagementModule.cs
index 4eecaa2..acefc97 100644
--- a/OpenSim/Region/CoreModules/Framework/UserManagement/HGUserManagementModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/UserManagement/HGUserManagementModule.cs
@@ -137,6 +137,9 @@ namespace OpenSim.Region.CoreModules.Framework.UserManagement
                             ud.FirstName = words[0];
                             ud.LastName = "@" + words[1];
                             users.Add(ud);
+                            // WARNING! that uriStr is not quite right... it may be missing the / at the end,
+                            // which will cause trouble (duplicate entries on some tables). We should
+                            // get the UUI instead from the UAS. TO BE FIXED.
                             AddUser(userID, names[0], names[1], uriStr);
                             m_log.DebugFormat("[USER MANAGEMENT MODULE]: User {0}@{1} found", words[0], words[1]);
                         }
diff --git a/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs b/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs
index f4ed67b..b4811da 100644
--- a/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs
@@ -31,6 +31,7 @@ using System.Reflection;
 
 using OpenSim.Framework;
 using OpenSim.Framework.Console;
+using OpenSim.Region.ClientStack.LindenUDP;
 using OpenSim.Region.Framework;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
@@ -429,8 +430,7 @@ namespace OpenSim.Region.CoreModules.Framework.UserManagement
 
         public void AddUser(UUID uuid, string first, string last, string homeURL)
         {
-            // m_log.DebugFormat("[USER MANAGEMENT MODULE]: Adding user with id {0}, first {1}, last {2}, url {3}", uuid, first, last, homeURL);
-
+            //m_log.DebugFormat("[USER MANAGEMENT MODULE]: Adding user with id {0}, first {1}, last {2}, url {3}", uuid, first, last, homeURL);
             AddUser(uuid, homeURL + ";" + first + " " + last);
         }
 
@@ -553,8 +553,8 @@ namespace OpenSim.Region.CoreModules.Framework.UserManagement
                 MainConsole.Instance.Output("-----------------------------------------------------------------------------");
                 foreach (KeyValuePair<UUID, UserData> kvp in m_UserCache)
                 {
-                    MainConsole.Instance.Output(String.Format("{0} {1} {2}",
-                           kvp.Key, kvp.Value.FirstName, kvp.Value.LastName));
+                    MainConsole.Instance.Output(String.Format("{0} {1} {2} ({3})",
+                           kvp.Key, kvp.Value.FirstName, kvp.Value.LastName, kvp.Value.HomeURL));
                 }
     
                 return;
diff --git a/OpenSim/Region/CoreModules/Resources/CoreModulePlugin.addin.xml b/OpenSim/Region/CoreModules/Resources/CoreModulePlugin.addin.xml
index 424e0ab..6c73d91 100644
--- a/OpenSim/Region/CoreModules/Resources/CoreModulePlugin.addin.xml
+++ b/OpenSim/Region/CoreModules/Resources/CoreModulePlugin.addin.xml
@@ -15,6 +15,7 @@
         <RegionModule id="InventoryAccessModule" type="OpenSim.Region.CoreModules.Framework.InventoryAccess.BasicInventoryAccessModule" />
         <RegionModule id="HGInventoryAccessModule" type="OpenSim.Region.CoreModules.Framework.InventoryAccess.HGInventoryAccessModule" />
         <RegionModule id="LandManagementModule" type="OpenSim.Region.CoreModules.World.Land.LandManagementModule" />
+        <RegionModule id="DwellModule" type="OpenSim.Region.CoreModules.World.Land.DwellModule" />
         <RegionModule id="PrimCountModule" type="OpenSim.Region.CoreModules.World.Land.PrimCountModule" />
         <RegionModule id="ExportSerialisationModule" type="OpenSim.Region.CoreModules.World.Serialiser.SerialiserModule" />
         <RegionModule id="ArchiverModule" type="OpenSim.Region.CoreModules.World.Archiver.ArchiverModule" />
diff --git a/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTexture.cs b/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTexture.cs
new file mode 100644
index 0000000..fce9490
--- /dev/null
+++ b/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTexture.cs
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Drawing;
+using OpenSim.Region.Framework.Interfaces;
+
+namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
+{
+    public class DynamicTexture : IDynamicTexture
+    {
+        public string InputCommands { get; private set; }
+        public Uri InputUri { get; private set; }
+        public string InputParams { get; private set; }
+        public byte[] Data { get; private set; }
+        public Size Size { get; private set; }
+        public bool IsReuseable { get; private set; }
+
+        public DynamicTexture(string inputCommands, string inputParams, byte[] data, Size size, bool isReuseable)
+        {
+            InputCommands = inputCommands;
+            InputParams = inputParams;
+            Data = data;
+            Size = size;
+            IsReuseable = isReuseable;
+        }
+
+        public DynamicTexture(Uri inputUri, string inputParams, byte[] data, Size size, bool isReuseable)
+        {
+            InputUri = inputUri;
+            InputParams = inputParams;
+            Data = data;
+            Size = size;
+            IsReuseable = isReuseable;
+        }
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTextureModule.cs b/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTextureModule.cs
index 18bd018..93a045e 100644
--- a/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTextureModule.cs
+++ b/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTextureModule.cs
@@ -42,13 +42,29 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
 {
     public class DynamicTextureModule : IRegionModule, IDynamicTextureManager
     {
-        //private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
         private const int ALL_SIDES = -1;
 
         public const int DISP_EXPIRE = 1;
         public const int DISP_TEMP   = 2;
 
+        /// <summary>
+        /// If true then where possible dynamic textures are reused.
+        /// </summary>
+        public bool ReuseTextures { get; set; }
+
+        /// <summary>
+        /// If false, then textures which have a low data size are not reused when ReuseTextures = true.
+        /// </summary>
+        /// <remarks>
+        /// LL viewers 3.3.4 and before appear to not fully render textures pulled from the viewer cache if those
+        /// textures have a relatively high pixel surface but a small data size.  Typically, this appears to happen
+        /// if the data size is smaller than the viewer's discard level 2 size estimate.  So if this is setting is
+        /// false, textures smaller than the calculation in IsSizeReuseable are always regenerated rather than reused
+        /// to work around this problem.</remarks>
+        public bool ReuseLowDataTextures { get; set; }
+
         private Dictionary<UUID, Scene> RegisteredScenes = new Dictionary<UUID, Scene>();
 
         private Dictionary<string, IDynamicTextureRender> RenderPlugins =
@@ -56,6 +72,15 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
 
         private Dictionary<UUID, DynamicTextureUpdater> Updaters = new Dictionary<UUID, DynamicTextureUpdater>();
 
+        /// <summary>
+        /// Record dynamic textures that we can reuse for a given data and parameter combination rather than
+        /// regenerate.
+        /// </summary>
+        /// <remarks>
+        /// Key is string.Format("{0}{1}", data
+        /// </remarks>
+        private Cache m_reuseableDynamicTextures;
+
         #region IDynamicTextureManager Members
 
         public void RegisterRender(string handleType, IDynamicTextureRender render)
@@ -69,17 +94,17 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
         /// <summary>
         /// Called by code which actually renders the dynamic texture to supply texture data.
         /// </summary>
-        /// <param name="id"></param>
-        /// <param name="data"></param>
-        public void ReturnData(UUID id, byte[] data)
+        /// <param name="updaterId"></param>
+        /// <param name="texture"></param>
+        public void ReturnData(UUID updaterId, IDynamicTexture texture)
         {
             DynamicTextureUpdater updater = null;
 
             lock (Updaters)
             {
-                if (Updaters.ContainsKey(id))
+                if (Updaters.ContainsKey(updaterId))
                 {
-                    updater = Updaters[id];
+                    updater = Updaters[updaterId];
                 }
             }
 
@@ -88,7 +113,16 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
                 if (RegisteredScenes.ContainsKey(updater.SimUUID))
                 {
                     Scene scene = RegisteredScenes[updater.SimUUID];
-                    updater.DataReceived(data, scene);
+                    UUID newTextureID = updater.DataReceived(texture.Data, scene);
+
+                    if (ReuseTextures
+                        && !updater.BlendWithOldTexture
+                        && texture.IsReuseable
+                        && (ReuseLowDataTextures || IsDataSizeReuseable(texture)))
+                    {
+                        m_reuseableDynamicTextures.Store(
+                            GenerateReusableTextureKey(texture.InputCommands, texture.InputParams), newTextureID);
+                    }
                 }
             }
 
@@ -104,6 +138,27 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
             }
         }
 
+        /// <summary>
+        /// Determines whether the texture is reuseable based on its data size.
+        /// </summary>
+        /// <remarks>
+        /// This is a workaround for a viewer bug where very small data size textures relative to their pixel size
+        /// are not redisplayed properly when pulled from cache.  The calculation here is based on the typical discard
+        /// level of 2, a 'rate' of 0.125 and 4 components (which makes for a factor of 0.5).
+        /// </remarks>
+        /// <returns></returns>
+        private bool IsDataSizeReuseable(IDynamicTexture texture)
+        {
+//            Console.WriteLine("{0} {1}", texture.Size.Width, texture.Size.Height);
+            int discardLevel2DataThreshold = (int)Math.Ceiling((texture.Size.Width >> 2) * (texture.Size.Height >> 2) * 0.5);
+
+//            m_log.DebugFormat(
+//                "[DYNAMIC TEXTURE MODULE]: Discard level 2 threshold {0}, texture data length {1}",
+//                discardLevel2DataThreshold, texture.Data.Length);
+
+            return discardLevel2DataThreshold < texture.Data.Length;
+        }
+
         public UUID AddDynamicTextureURL(UUID simID, UUID primID, string contentType, string url,
                                          string extraParams, int updateTimer)
         {
@@ -167,22 +222,61 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
         public UUID AddDynamicTextureData(UUID simID, UUID primID, string contentType, string data,
                                           string extraParams, int updateTimer, bool SetBlending, int disp, byte AlphaValue, int face)
         {
-            if (RenderPlugins.ContainsKey(contentType))
+            if (!RenderPlugins.ContainsKey(contentType))
+                return UUID.Zero;
+
+            Scene scene;
+            RegisteredScenes.TryGetValue(simID, out scene);
+
+            if (scene == null)
+                return UUID.Zero;
+
+            SceneObjectPart part = scene.GetSceneObjectPart(primID);
+
+            if (part == null)
+                return UUID.Zero;
+
+            // If we want to reuse dynamic textures then we have to ignore any request from the caller to expire
+            // them.
+            if (ReuseTextures)
+                disp = disp & ~DISP_EXPIRE;
+
+            DynamicTextureUpdater updater = new DynamicTextureUpdater();
+            updater.SimUUID = simID;
+            updater.PrimID = primID;
+            updater.ContentType = contentType;
+            updater.BodyData = data;
+            updater.UpdateTimer = updateTimer;
+            updater.UpdaterID = UUID.Random();
+            updater.Params = extraParams;
+            updater.BlendWithOldTexture = SetBlending;
+            updater.FrontAlpha = AlphaValue;
+            updater.Face = face;
+            updater.Url = "Local image";
+            updater.Disp = disp;
+
+            object objReusableTextureUUID = null;
+
+            if (ReuseTextures && !updater.BlendWithOldTexture)
             {
-                DynamicTextureUpdater updater = new DynamicTextureUpdater();
-                updater.SimUUID = simID;
-                updater.PrimID = primID;
-                updater.ContentType = contentType;
-                updater.BodyData = data;
-                updater.UpdateTimer = updateTimer;
-                updater.UpdaterID = UUID.Random();
-                updater.Params = extraParams;
-                updater.BlendWithOldTexture = SetBlending;
-                updater.FrontAlpha = AlphaValue;
-                updater.Face = face;
-                updater.Url = "Local image";
-                updater.Disp = disp;
+                string reuseableTextureKey = GenerateReusableTextureKey(data, extraParams);
+                objReusableTextureUUID = m_reuseableDynamicTextures.Get(reuseableTextureKey);
+
+                if (objReusableTextureUUID != null)
+                {
+                    // If something else has removed this temporary asset from the cache, detect and invalidate
+                    // our cached uuid.
+                    if (scene.AssetService.GetMetadata(objReusableTextureUUID.ToString()) == null)
+                    {
+                        m_reuseableDynamicTextures.Invalidate(reuseableTextureKey);
+                        objReusableTextureUUID = null;
+                    }
+                }
+            }
 
+            // We cannot reuse a dynamic texture if the data is going to be blended with something already there.
+            if (objReusableTextureUUID == null)
+            {
                 lock (Updaters)
                 {
                     if (!Updaters.ContainsKey(updater.UpdaterID))
@@ -191,11 +285,29 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
                     }
                 }
 
+//                m_log.DebugFormat(
+//                    "[DYNAMIC TEXTURE MODULE]: Requesting generation of new dynamic texture for {0} in {1}",
+//                    part.Name, part.ParentGroup.Scene.Name);
+
                 RenderPlugins[contentType].AsyncConvertData(updater.UpdaterID, data, extraParams);
-                return updater.UpdaterID;
             }
-            
-            return UUID.Zero;
+            else
+            {
+//                m_log.DebugFormat(
+//                    "[DYNAMIC TEXTURE MODULE]: Reusing cached texture {0} for {1} in {2}",
+//                    objReusableTextureUUID, part.Name, part.ParentGroup.Scene.Name);
+
+                // No need to add to updaters as the texture is always the same.  Not that this functionality
+                // apppears to be implemented anyway.
+                updater.UpdatePart(part, (UUID)objReusableTextureUUID);
+            }
+
+            return updater.UpdaterID;
+        }
+
+        private string GenerateReusableTextureKey(string data, string extraParams)
+        {
+            return string.Format("{0}{1}", data, extraParams);
         }
 
         public void GetDrawStringSize(string contentType, string text, string fontName, int fontSize,
@@ -215,6 +327,13 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
 
         public void Initialise(Scene scene, IConfigSource config)
         {
+            IConfig texturesConfig = config.Configs["Textures"];
+            if (texturesConfig != null)
+            {
+                ReuseTextures = texturesConfig.GetBoolean("ReuseDynamicTextures", false);
+                ReuseLowDataTextures = texturesConfig.GetBoolean("ReuseDynamicLowDataTextures", false);
+            }
+
             if (!RegisteredScenes.ContainsKey(scene.RegionInfo.RegionID))
             {
                 RegisteredScenes.Add(scene.RegionInfo.RegionID, scene);
@@ -224,6 +343,11 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
 
         public void PostInitialise()
         {
+            if (ReuseTextures)
+            {
+                m_reuseableDynamicTextures = new Cache(CacheMedium.Memory, CacheStrategy.Conservative);
+                m_reuseableDynamicTextures.DefaultTTL = new TimeSpan(24, 0, 0);
+            }
         }
 
         public void Close()
@@ -269,9 +393,60 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
             }
 
             /// <summary>
+            /// Update the given part with the new texture.
+            /// </summary>
+            /// <returns>
+            /// The old texture UUID.
+            /// </returns>
+            public UUID UpdatePart(SceneObjectPart part, UUID textureID)
+            {
+                UUID oldID;
+
+                lock (part)
+                {
+                    // mostly keep the values from before
+                    Primitive.TextureEntry tmptex = part.Shape.Textures;
+
+                    // FIXME: Need to return the appropriate ID if only a single face is replaced.
+                    oldID = tmptex.DefaultTexture.TextureID;
+
+                    if (Face == ALL_SIDES)
+                    {
+                        oldID = tmptex.DefaultTexture.TextureID;
+                        tmptex.DefaultTexture.TextureID = textureID;
+                    }
+                    else
+                    {
+                        try
+                        {
+                            Primitive.TextureEntryFace texface = tmptex.CreateFace((uint)Face);
+                            texface.TextureID = textureID;
+                            tmptex.FaceTextures[Face] = texface;
+                        }
+                        catch (Exception)
+                        {
+                            tmptex.DefaultTexture.TextureID = textureID;
+                        }
+                    }
+
+                    // I'm pretty sure we always want to force this to true
+                    // I'm pretty sure noone whats to set fullbright true if it wasn't true before.
+                    // tmptex.DefaultTexture.Fullbright = true;
+
+                    part.UpdateTextureEntry(tmptex.GetBytes());
+                }
+
+                return oldID;
+            }
+
+            /// <summary>
             /// Called once new texture data has been received for this updater.
             /// </summary>
-            public void DataReceived(byte[] data, Scene scene)
+            /// <param name="data"></param>
+            /// <param name="scene"></param>
+            /// <param name="isReuseable">True if the data given is reuseable.</param>
+            /// <returns>The asset UUID given to the incoming data.</returns>
+            public UUID DataReceived(byte[] data, Scene scene)
             {
                 SceneObjectPart part = scene.GetSceneObjectPart(PrimID);
 
@@ -281,7 +456,8 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
                         String.Format("DynamicTextureModule: Error preparing image using URL {0}", Url);
                     scene.SimChat(Utils.StringToBytes(msg), ChatTypeEnum.Say,
                                   0, part.ParentGroup.RootPart.AbsolutePosition, part.Name, part.UUID, false);
-                    return;
+                    
+                    return UUID.Zero;
                 }
 
                 byte[] assetData = null;
@@ -319,56 +495,29 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
                 IJ2KDecoder cacheLayerDecode = scene.RequestModuleInterface<IJ2KDecoder>();
                 if (cacheLayerDecode != null)
                 {
-                    cacheLayerDecode.Decode(asset.FullID, asset.Data);
-                    cacheLayerDecode = null;
+                    if (!cacheLayerDecode.Decode(asset.FullID, asset.Data))
+                        m_log.WarnFormat(
+                            "[DYNAMIC TEXTURE MODULE]: Decoding of dynamically generated asset {0} for {1} in {2} failed",
+                            asset.ID, part.Name, part.ParentGroup.Scene.Name);
                 }
 
-                UUID oldID = UUID.Zero;
-
-                lock (part)
-                {
-                    // mostly keep the values from before
-                    Primitive.TextureEntry tmptex = part.Shape.Textures;
-
-                    // remove the old asset from the cache
-                    oldID = tmptex.DefaultTexture.TextureID;
-                    
-                    if (Face == ALL_SIDES)
-                    {
-                        tmptex.DefaultTexture.TextureID = asset.FullID;
-                    }
-                    else
-                    {
-                        try
-                        {
-                            Primitive.TextureEntryFace texface = tmptex.CreateFace((uint)Face);
-                            texface.TextureID = asset.FullID;
-                            tmptex.FaceTextures[Face] = texface;
-                        }
-                        catch (Exception)
-                        {
-                            tmptex.DefaultTexture.TextureID = asset.FullID;
-                        }
-                    }
-
-                    // I'm pretty sure we always want to force this to true
-                    // I'm pretty sure noone whats to set fullbright true if it wasn't true before.
-                    // tmptex.DefaultTexture.Fullbright = true;
-
-                    part.UpdateTextureEntry(tmptex.GetBytes());
-                }
+                UUID oldID = UpdatePart(part, asset.FullID);
 
                 if (oldID != UUID.Zero && ((Disp & DISP_EXPIRE) != 0))
                 {
-                    if (oldAsset == null) oldAsset = scene.AssetService.Get(oldID.ToString());
+                    if (oldAsset == null)
+                        oldAsset = scene.AssetService.Get(oldID.ToString());
+
                     if (oldAsset != null)
                     {
-                        if (oldAsset.Temporary == true)
+                        if (oldAsset.Temporary)
                         {
                             scene.AssetService.Delete(oldID.ToString());
                         }
                     }
                 }
+
+                return asset.FullID;
             }
 
             private byte[] BlendTextures(byte[] frontImage, byte[] backImage, bool setNewAlpha, byte newAlpha)
diff --git a/OpenSim/Region/CoreModules/Scripting/LSLHttp/UrlModule.cs b/OpenSim/Region/CoreModules/Scripting/LSLHttp/UrlModule.cs
index 56221aa..0b9174f 100644
--- a/OpenSim/Region/CoreModules/Scripting/LSLHttp/UrlModule.cs
+++ b/OpenSim/Region/CoreModules/Scripting/LSLHttp/UrlModule.cs
@@ -58,6 +58,7 @@ namespace OpenSim.Region.CoreModules.Scripting.LSLHttp
         public string body;
         public int responseCode;
         public string responseBody;
+        public string responseType = "text/plain";
         //public ManualResetEvent ev;
         public bool requestDone;
         public int startTime;
@@ -270,6 +271,22 @@ namespace OpenSim.Region.CoreModules.Scripting.LSLHttp
             }
         }
         
+        public void HttpContentType(UUID request, string type)
+        {
+            lock (m_UrlMap)
+            {
+                if (m_RequestMap.ContainsKey(request))
+                {
+                    UrlData urlData = m_RequestMap[request];
+                    urlData.requests[request].responseType = type;
+                }
+                else
+                {
+                    m_log.Info("[HttpRequestHandler] There is no http-in request with id " + request.ToString());
+                }
+            }
+        }
+        
         public void HttpResponse(UUID request, int status, string body)
         {
             lock (m_RequestMap)
diff --git a/OpenSim/Region/CoreModules/Scripting/LoadImageURL/LoadImageURLModule.cs b/OpenSim/Region/CoreModules/Scripting/LoadImageURL/LoadImageURLModule.cs
index 6f83948..45e6527 100644
--- a/OpenSim/Region/CoreModules/Scripting/LoadImageURL/LoadImageURLModule.cs
+++ b/OpenSim/Region/CoreModules/Scripting/LoadImageURL/LoadImageURLModule.cs
@@ -32,6 +32,7 @@ using System.Net;
 using Nini.Config;
 using OpenMetaverse;
 using OpenMetaverse.Imaging;
+using OpenSim.Region.CoreModules.Scripting.DynamicTexture;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
 using log4net;
@@ -67,12 +68,18 @@ namespace OpenSim.Region.CoreModules.Scripting.LoadImageURL
             return true;
         }
 
-        public byte[] ConvertUrl(string url, string extraParams)
+//        public bool AlwaysIdenticalConversion(string bodyData, string extraParams)
+//        {
+//            // We don't support conversion of body data.
+//            return false;
+//        }
+
+        public IDynamicTexture ConvertUrl(string url, string extraParams)
         {
             return null;
         }
 
-        public byte[] ConvertStream(Stream data, string extraParams)
+        public IDynamicTexture ConvertData(string bodyData, string extraParams)
         {
             return null;
         }
@@ -165,11 +172,11 @@ namespace OpenSim.Region.CoreModules.Scripting.LoadImageURL
 
         private void HttpRequestReturn(IAsyncResult result)
         {
-
             RequestState state = (RequestState) result.AsyncState;
             WebRequest request = (WebRequest) state.Request;
             Stream stream = null;
             byte[] imageJ2000 = new byte[0];
+            Size newSize = new Size(0, 0);
 
             try
             {
@@ -182,37 +189,43 @@ namespace OpenSim.Region.CoreModules.Scripting.LoadImageURL
                         try
                         {
                             Bitmap image = new Bitmap(stream);
-                            Size newsize;
 
                             // TODO: make this a bit less hard coded
                             if ((image.Height < 64) && (image.Width < 64))
                             {
-                                newsize = new Size(32, 32);
+                                newSize.Width = 32;
+                                newSize.Height = 32;
                             }
                             else if ((image.Height < 128) && (image.Width < 128))
                             {
-                                newsize = new Size(64, 64);
+                                newSize.Width = 64;
+                                newSize.Height = 64;
                             }
                             else if ((image.Height < 256) && (image.Width < 256))
                             {
-                                newsize = new Size(128, 128);
+                                newSize.Width = 128;
+                                newSize.Height = 128;
                             }
                             else if ((image.Height < 512 && image.Width < 512))
                             {
-                                newsize = new Size(256, 256);
+                                newSize.Width = 256;
+                                newSize.Height = 256;
                             }
                             else if ((image.Height < 1024 && image.Width < 1024))
                             {
-                                newsize = new Size(512, 512);
+                                newSize.Width = 512;
+                                newSize.Height = 512;
                             }
                             else
                             {
-                                newsize = new Size(1024, 1024);
+                                newSize.Width = 1024;
+                                newSize.Height = 1024;
                             }
 
-                            Bitmap resize = new Bitmap(image, newsize);
-
-                            imageJ2000 = OpenJPEG.EncodeFromImage(resize, true);
+                            using (Bitmap resize = new Bitmap(image, newSize))
+                            {
+                                imageJ2000 = OpenJPEG.EncodeFromImage(resize, true);
+                            }
                         } 
                         catch (Exception)
                         {
@@ -227,7 +240,6 @@ namespace OpenSim.Region.CoreModules.Scripting.LoadImageURL
             }
             catch (WebException)
             {
-                
             }
             finally
             {
@@ -236,9 +248,14 @@ namespace OpenSim.Region.CoreModules.Scripting.LoadImageURL
                     stream.Close();
                 }
             }
-            m_log.DebugFormat("[LOADIMAGEURLMODULE] Returning {0} bytes of image data for request {1}",
+
+            m_log.DebugFormat("[LOADIMAGEURLMODULE]: Returning {0} bytes of image data for request {1}",
                                        imageJ2000.Length, state.RequestID);
-            m_textureManager.ReturnData(state.RequestID, imageJ2000);
+
+            m_textureManager.ReturnData(
+                state.RequestID,
+                new OpenSim.Region.CoreModules.Scripting.DynamicTexture.DynamicTexture(
+                    request.RequestUri, null, imageJ2000, newSize, false));
         }
 
         #region Nested type: RequestState
diff --git a/OpenSim/Region/OptionalModules/Scripting/ScriptModuleComms/ScriptModuleCommsModule.cs b/OpenSim/Region/CoreModules/Scripting/ScriptModuleComms/ScriptModuleCommsModule.cs
index c5c96a9..dc54c3f 100644
--- a/OpenSim/Region/OptionalModules/Scripting/ScriptModuleComms/ScriptModuleCommsModule.cs
+++ b/OpenSim/Region/CoreModules/Scripting/ScriptModuleComms/ScriptModuleCommsModule.cs
@@ -130,13 +130,25 @@ namespace OpenSim.Region.OptionalModules.Scripting.ScriptModuleComms
             m_scriptModule.PostScriptEvent(script, "link_message", args);
         }
 
+        private static MethodInfo GetMethodInfoFromType(Type target, string meth, bool searchInstanceMethods)
+        {
+            BindingFlags getMethodFlags =
+                    BindingFlags.NonPublic | BindingFlags.Public;
+
+            if (searchInstanceMethods)
+                getMethodFlags |= BindingFlags.Instance;
+            else
+                getMethodFlags |= BindingFlags.Static;
+
+            return target.GetMethod(meth, getMethodFlags);
+        }
+
         public void RegisterScriptInvocation(object target, string meth)
         {
-            MethodInfo mi = target.GetType().GetMethod(meth,
-                    BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance);
+            MethodInfo mi = GetMethodInfoFromType(target.GetType(), meth, true);
             if (mi == null)
             {
-                m_log.WarnFormat("[MODULE COMMANDS] Failed to register method {0}",meth);
+                m_log.WarnFormat("[MODULE COMMANDS] Failed to register method {0}", meth);
                 return;
             }
 
@@ -151,38 +163,71 @@ namespace OpenSim.Region.OptionalModules.Scripting.ScriptModuleComms
 
         public void RegisterScriptInvocation(object target, MethodInfo mi)
         {
-            m_log.DebugFormat("[MODULE COMMANDS] Register method {0} from type {1}", mi.Name, target.GetType().Name);
+            m_log.DebugFormat("[MODULE COMMANDS] Register method {0} from type {1}", mi.Name, (target is Type) ? ((Type)target).Name : target.GetType().Name);
 
             Type delegateType;
-            var typeArgs = mi.GetParameters()
+            List<Type> typeArgs = mi.GetParameters()
                     .Select(p => p.ParameterType)
                     .ToList();
 
             if (mi.ReturnType == typeof(void))
             {
-                    delegateType = Expression.GetActionType(typeArgs.ToArray());
+                delegateType = Expression.GetActionType(typeArgs.ToArray());
             }
             else
             {
-                    typeArgs.Add(mi.ReturnType);
-                    delegateType = Expression.GetFuncType(typeArgs.ToArray());
+                typeArgs.Add(mi.ReturnType);
+                delegateType = Expression.GetFuncType(typeArgs.ToArray());
             }
 
-            Delegate fcall = Delegate.CreateDelegate(delegateType, target, mi);
+            Delegate fcall;
+            if (!(target is Type))
+                fcall = Delegate.CreateDelegate(delegateType, target, mi);
+            else
+                fcall = Delegate.CreateDelegate(delegateType, (Type)target, mi.Name);
 
             lock (m_scriptInvocation)
             {
-                ParameterInfo[] parameters = fcall.Method.GetParameters ();
+                ParameterInfo[] parameters = fcall.Method.GetParameters();
                 if (parameters.Length < 2) // Must have two UUID params
                     return;
 
                 // Hide the first two parameters
                 Type[] parmTypes = new Type[parameters.Length - 2];
-                for (int i = 2 ; i < parameters.Length ; i++)
+                for (int i = 2; i < parameters.Length; i++)
                     parmTypes[i - 2] = parameters[i].ParameterType;
                 m_scriptInvocation[fcall.Method.Name] = new ScriptInvocationData(fcall.Method.Name, fcall, parmTypes, fcall.Method.ReturnType);
             }
         }
+
+        public void RegisterScriptInvocation(Type target, string[] methods)
+        {
+            foreach (string method in methods)
+            {
+                MethodInfo mi = GetMethodInfoFromType(target, method, false);
+                if (mi == null)
+                    m_log.WarnFormat("[MODULE COMMANDS] Failed to register method {0}", method);
+                else
+                    RegisterScriptInvocation(target, mi);
+            }
+        }
+
+        public void RegisterScriptInvocations(IRegionModuleBase target)
+        {
+            foreach(MethodInfo method in target.GetType().GetMethods(
+                    BindingFlags.Public | BindingFlags.Instance |
+                    BindingFlags.Static))
+            {
+                if(method.GetCustomAttributes(
+                        typeof(ScriptInvocationAttribute), true).Any())
+                {
+                    if(method.IsStatic)
+                        RegisterScriptInvocation(target.GetType(), method);
+                    else
+                        RegisterScriptInvocation(target, method);
+                }
+            }
+        }
         
         public Delegate[] GetScriptInvocationList()
         {
@@ -285,6 +330,20 @@ namespace OpenSim.Region.OptionalModules.Scripting.ScriptModuleComms
             }
         }
 
+        public void RegisterConstants(IRegionModuleBase target)
+        {
+            foreach (FieldInfo field in target.GetType().GetFields(
+                    BindingFlags.Public | BindingFlags.Static |
+                    BindingFlags.Instance))
+            {
+                if (field.GetCustomAttributes(
+                        typeof(ScriptConstantAttribute), true).Any())
+                {
+                    RegisterConstant(field.Name, field.GetValue(target));
+                }
+            }
+        }
+
         /// <summary>
         /// Operation to check for a registered constant
         /// </summary>
diff --git a/OpenSim/Region/CoreModules/Scripting/VectorRender/Tests/VectorRenderModuleTests.cs b/OpenSim/Region/CoreModules/Scripting/VectorRender/Tests/VectorRenderModuleTests.cs
index 9787c8c..41baccc 100644
--- a/OpenSim/Region/CoreModules/Scripting/VectorRender/Tests/VectorRenderModuleTests.cs
+++ b/OpenSim/Region/CoreModules/Scripting/VectorRender/Tests/VectorRenderModuleTests.cs
@@ -45,31 +45,292 @@ using OpenSim.Tests.Common.Mock;
 namespace OpenSim.Region.CoreModules.Scripting.VectorRender.Tests
 {
     [TestFixture]
-    public class VectorRenderModuleTests
+    public class VectorRenderModuleTests : OpenSimTestCase
     {
+        Scene m_scene;
+        DynamicTextureModule m_dtm;
+        VectorRenderModule m_vrm;
+
+        private void SetupScene(bool reuseTextures)
+        {
+            m_scene = new SceneHelpers().SetupScene();
+
+            m_dtm = new DynamicTextureModule();
+            m_dtm.ReuseTextures = reuseTextures;
+//            m_dtm.ReuseLowDataTextures = reuseTextures;
+
+            m_vrm = new VectorRenderModule();
+
+            SceneHelpers.SetupSceneModules(m_scene, m_dtm, m_vrm);
+        }
+
         [Test]
         public void TestDraw()
         {
             TestHelpers.InMethod();
 
-            Scene scene = new SceneHelpers().SetupScene();
-            DynamicTextureModule dtm = new DynamicTextureModule();
-            VectorRenderModule vrm = new VectorRenderModule();
-            SceneHelpers.SetupSceneModules(scene, dtm, vrm);
-
-            SceneObjectGroup so = SceneHelpers.AddSceneObject(scene);
+            SetupScene(false);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
             UUID originalTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
 
-            dtm.AddDynamicTextureData(
-                scene.RegionInfo.RegionID,
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
                 so.UUID,
-                vrm.GetContentType(),
+                m_vrm.GetContentType(),
                 "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;",
                 "",
                 0);
 
+            Assert.That(originalTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
+
+        [Test]
+        public void TestRepeatSameDraw()
+        {
+            TestHelpers.InMethod();
+
+            string dtText = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;";
+
+            SetupScene(false);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
+
+        [Test]
+        public void TestRepeatSameDrawDifferentExtraParams()
+        {
+            TestHelpers.InMethod();
+
+            string dtText = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;";
+
+            SetupScene(false);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "alpha:250",
+                0);
+
+            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
+
+        [Test]
+        public void TestRepeatSameDrawContainingImage()
+        {
+            TestHelpers.InMethod();
+
+            string dtText
+                = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World; Image http://localhost/shouldnotexist.png";
+
+            SetupScene(false);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
+
+        [Test]
+        public void TestDrawReusingTexture()
+        {
+            TestHelpers.InMethod();
+
+            SetupScene(true);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+            UUID originalTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;",
+                "",
+                0);
 
             Assert.That(originalTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
         }
+
+        [Test]
+        public void TestRepeatSameDrawReusingTexture()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            string dtText = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;";
+
+            SetupScene(true);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            Assert.That(firstDynamicTextureID, Is.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
+
+        /// <summary>
+        /// Test a low data dynamically generated texture such that it is treated as a low data texture that causes
+        /// problems for current viewers.
+        /// </summary>
+        /// <remarks>
+        /// As we do not set DynamicTextureModule.ReuseLowDataTextures = true in this test, it should not reuse the
+        /// texture
+        /// </remarks>
+        [Test]
+        public void TestRepeatSameDrawLowDataTexture()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            string dtText = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;";
+
+            SetupScene(true);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "1024",
+                0);
+
+            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "1024",
+                0);
+
+            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
+
+        [Test]
+        public void TestRepeatSameDrawDifferentExtraParamsReusingTexture()
+        {
+            TestHelpers.InMethod();
+
+            string dtText = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;";
+
+            SetupScene(true);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "alpha:250",
+                0);
+
+            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
+
+        [Test]
+        public void TestRepeatSameDrawContainingImageReusingTexture()
+        {
+            TestHelpers.InMethod();
+
+            string dtText
+                = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World; Image http://localhost/shouldnotexist.png";
+
+            SetupScene(true);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/CoreModules/Scripting/VectorRender/VectorRenderModule.cs b/OpenSim/Region/CoreModules/Scripting/VectorRender/VectorRenderModule.cs
index 8b2f2f8..673c2d1 100644
--- a/OpenSim/Region/CoreModules/Scripting/VectorRender/VectorRenderModule.cs
+++ b/OpenSim/Region/CoreModules/Scripting/VectorRender/VectorRenderModule.cs
@@ -30,10 +30,12 @@ using System.Drawing;
 using System.Drawing.Imaging;
 using System.Globalization;
 using System.IO;
+using System.Linq;
 using System.Net;
 using Nini.Config;
 using OpenMetaverse;
 using OpenMetaverse.Imaging;
+using OpenSim.Region.CoreModules.Scripting.DynamicTexture;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
 using log4net;
@@ -45,9 +47,13 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
 {
     public class VectorRenderModule : IRegionModule, IDynamicTextureRender
     {
+        // These fields exist for testing purposes, please do not remove.
+//        private static bool s_flipper;
+//        private static byte[] s_asset1Data;
+//        private static byte[] s_asset2Data;
+
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
-        private string m_name = "VectorRenderModule";
         private Scene m_scene;
         private IDynamicTextureManager m_textureManager;
         private Graphics m_graph;
@@ -61,12 +67,12 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
 
         public string GetContentType()
         {
-            return ("vector");
+            return "vector";
         }
 
         public string GetName()
         {
-            return m_name;
+            return Name;
         }
 
         public bool SupportsAsynchronous()
@@ -74,14 +80,20 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
             return true;
         }
 
-        public byte[] ConvertUrl(string url, string extraParams)
+//        public bool AlwaysIdenticalConversion(string bodyData, string extraParams)
+//        {
+//            string[] lines = GetLines(bodyData);
+//            return lines.Any((str, r) => str.StartsWith("Image"));
+//        }
+
+        public IDynamicTexture ConvertUrl(string url, string extraParams)
         {
             return null;
         }
 
-        public byte[] ConvertStream(Stream data, string extraParams)
+        public IDynamicTexture ConvertData(string bodyData, string extraParams)
         {
-            return null;
+            return Draw(bodyData, extraParams);
         }
 
         public bool AsyncConvertUrl(UUID id, string url, string extraParams)
@@ -91,21 +103,28 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
 
         public bool AsyncConvertData(UUID id, string bodyData, string extraParams)
         {
-            Draw(bodyData, id, extraParams);
+            // XXX: This isn't actually being done asynchronously!
+            m_textureManager.ReturnData(id, ConvertData(bodyData, extraParams));
+
             return true;
         }
 
         public void GetDrawStringSize(string text, string fontName, int fontSize, 
                                       out double xSize, out double ySize)
         {
-            using (Font myFont = new Font(fontName, fontSize))
+            lock (this)
             {
-                SizeF stringSize = new SizeF();
-                lock (m_graph)
+                using (Font myFont = new Font(fontName, fontSize))
                 {
-                    stringSize = m_graph.MeasureString(text, myFont);
-                    xSize = stringSize.Width;
-                    ySize = stringSize.Height;
+                    SizeF stringSize = new SizeF();
+
+                    // XXX: This lock may be unnecessary.
+                    lock (m_graph)
+                    {
+                        stringSize = m_graph.MeasureString(text, myFont);
+                        xSize = stringSize.Width;
+                        ySize = stringSize.Height;
+                    }
                 }
             }
         }
@@ -144,6 +163,13 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
             {
                 m_textureManager.RegisterRender(GetContentType(), this);
             }
+
+                // This code exists for testing purposes, please do not remove.
+//            s_asset1Data = m_scene.AssetService.Get("00000000-0000-1111-9999-000000000001").Data;
+//            s_asset1Data = m_scene.AssetService.Get("9f4acf0d-1841-4e15-bdb8-3a12efc9dd8f").Data;
+
+            // Terrain dirt - smallest bin/assets file (6004 bytes)
+//            s_asset2Data = m_scene.AssetService.Get("b8d3965a-ad78-bf43-699b-bff8eca6c975").Data;
         }
 
         public void Close()
@@ -152,7 +178,7 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
 
         public string Name
         {
-            get { return m_name; }
+            get { return "VectorRenderModule"; }
         }
 
         public bool IsSharedModule
@@ -162,7 +188,7 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
 
         #endregion
 
-        private void Draw(string data, UUID id, string extraParams)
+        private IDynamicTexture Draw(string data, string extraParams)
         {
             // We need to cater for old scripts that didnt use extraParams neatly, they use either an integer size which represents both width and height, or setalpha
             // we will now support multiple comma seperated params in the form  width:256,height:512,alpha:255
@@ -305,40 +331,57 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
 
             Bitmap bitmap = null;
             Graphics graph = null;
+            bool reuseable = false;
 
             try
             {
-                if (alpha == 256)
-                    bitmap = new Bitmap(width, height, PixelFormat.Format32bppRgb);
-                else
-                    bitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb);
-
-                graph = Graphics.FromImage(bitmap);
-    
-                // this is really just to save people filling the 
-                // background color in their scripts, only do when fully opaque
-                if (alpha >= 255)
+                // XXX: In testing, it appears that if multiple threads dispose of separate GDI+ objects simultaneously,
+                // the native malloc heap can become corrupted, possibly due to a double free().  This may be due to
+                // bugs in the underlying libcairo used by mono's libgdiplus.dll on Linux/OSX.  These problems were
+                // seen with both libcario 1.10.2-6.1ubuntu3 and 1.8.10-2ubuntu1.  They go away if disposal is perfomed
+                // under lock.
+                lock (this)
                 {
-                    using (SolidBrush bgFillBrush = new SolidBrush(bgColor))
+                    if (alpha == 256)
+                        bitmap = new Bitmap(width, height, PixelFormat.Format32bppRgb);
+                    else
+                        bitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb);
+    
+                    graph = Graphics.FromImage(bitmap);
+        
+                    // this is really just to save people filling the 
+                    // background color in their scripts, only do when fully opaque
+                    if (alpha >= 255)
                     {
-                        graph.FillRectangle(bgFillBrush, 0, 0, width, height);
+                        using (SolidBrush bgFillBrush = new SolidBrush(bgColor))
+                        {
+                            graph.FillRectangle(bgFillBrush, 0, 0, width, height);
+                        }
                     }
-                }
-    
-                for (int w = 0; w < bitmap.Width; w++)
-                {
-                    if (alpha <= 255) 
+        
+                    for (int w = 0; w < bitmap.Width; w++)
                     {
-                        for (int h = 0; h < bitmap.Height; h++)
+                        if (alpha <= 255) 
                         {
-                            bitmap.SetPixel(w, h, Color.FromArgb(alpha, bitmap.GetPixel(w, h)));
+                            for (int h = 0; h < bitmap.Height; h++)
+                            {
+                                bitmap.SetPixel(w, h, Color.FromArgb(alpha, bitmap.GetPixel(w, h)));
+                            }
                         }
                     }
+        
+                    GDIDraw(data, graph, altDataDelim, out reuseable);
                 }
     
-                GDIDraw(data, graph, altDataDelim);
-    
                 byte[] imageJ2000 = new byte[0];
+
+                // This code exists for testing purposes, please do not remove.
+//                if (s_flipper)
+//                    imageJ2000 = s_asset1Data;
+//                else
+//                    imageJ2000 = s_asset2Data;
+//
+//                s_flipper = !s_flipper;
     
                 try
                 {
@@ -351,15 +394,24 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
                         e.Message, e.StackTrace);
                 }
 
-                m_textureManager.ReturnData(id, imageJ2000);
+                return new OpenSim.Region.CoreModules.Scripting.DynamicTexture.DynamicTexture(
+                    data, extraParams, imageJ2000, new Size(width, height), reuseable);
             }
             finally
             {
-                if (graph != null)
-                    graph.Dispose();
-
-                if (bitmap != null)
-                    bitmap.Dispose();
+                // XXX: In testing, it appears that if multiple threads dispose of separate GDI+ objects simultaneously,
+                // the native malloc heap can become corrupted, possibly due to a double free().  This may be due to
+                // bugs in the underlying libcairo used by mono's libgdiplus.dll on Linux/OSX.  These problems were
+                // seen with both libcario 1.10.2-6.1ubuntu3 and 1.8.10-2ubuntu1.  They go away if disposal is perfomed
+                // under lock.
+                lock (this)
+                {
+                    if (graph != null)
+                        graph.Dispose();
+    
+                    if (bitmap != null)
+                        bitmap.Dispose();
+                }
             }
         }
         
@@ -418,8 +470,21 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
         }
 */
 
-        private void GDIDraw(string data, Graphics graph, char dataDelim)
+        /// <summary>
+        /// Split input data into discrete command lines.
+        /// </summary>
+        /// <returns></returns>
+        /// <param name='data'></param>
+        /// <param name='dataDelim'></param>
+        private string[] GetLines(string data, char dataDelim)
+        {
+            char[] lineDelimiter = { dataDelim };
+            return data.Split(lineDelimiter);
+        }
+
+        private void GDIDraw(string data, Graphics graph, char dataDelim, out bool reuseable)
         {
+            reuseable = true;
             Point startPoint = new Point(0, 0);
             Point endPoint = new Point(0, 0);
             Pen drawPen = null;
@@ -434,11 +499,9 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
                 myFont = new Font(fontName, fontSize);
                 myBrush = new SolidBrush(Color.Black);
 
-                char[] lineDelimiter = {dataDelim};
                 char[] partsDelimiter = {','};
-                string[] lines = data.Split(lineDelimiter);
 
-                foreach (string line in lines)
+                foreach (string line in GetLines(data, dataDelim))
                 {
                     string nextLine = line.Trim();
                     //replace with switch, or even better, do some proper parsing
@@ -469,6 +532,10 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
                     }
                     else if (nextLine.StartsWith("Image"))
                     {
+                        // We cannot reuse any generated texture involving fetching an image via HTTP since that image
+                        // can change.
+                        reuseable = false;
+
                         float x = 0;
                         float y = 0;
                         GetParams(partsDelimiter, ref nextLine, 5, ref x, ref y);
diff --git a/OpenSim/Region/CoreModules/Scripting/WorldComm/WorldCommModule.cs b/OpenSim/Region/CoreModules/Scripting/WorldComm/WorldCommModule.cs
index 07bb291..e167e31 100644
--- a/OpenSim/Region/CoreModules/Scripting/WorldComm/WorldCommModule.cs
+++ b/OpenSim/Region/CoreModules/Scripting/WorldComm/WorldCommModule.cs
@@ -28,6 +28,7 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Text.RegularExpressions;
 using Nini.Config;
 using OpenMetaverse;
 using OpenSim.Framework;
@@ -172,12 +173,42 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
         /// <param name="hostID">UUID of the SceneObjectPart</param>
         /// <param name="channel">channel to listen on</param>
         /// <param name="name">name to filter on</param>
-        /// <param name="id">key to filter on (user given, could be totally faked)</param>
+        /// <param name="id">
+        /// key to filter on (user given, could be totally faked)
+        /// </param>
+        /// <param name="msg">msg to filter on</param>
+        /// <returns>number of the scripts handle</returns>
+        public int Listen(uint localID, UUID itemID, UUID hostID, int channel,
+                string name, UUID id, string msg)
+        {
+            return m_listenerManager.AddListener(localID, itemID, hostID,
+                channel, name, id, msg);
+        }
+
+        /// <summary>
+        /// Create a listen event callback with the specified filters.
+        /// The parameters localID,itemID are needed to uniquely identify
+        /// the script during 'peek' time. Parameter hostID is needed to
+        /// determine the position of the script.
+        /// </summary>
+        /// <param name="localID">localID of the script engine</param>
+        /// <param name="itemID">UUID of the script engine</param>
+        /// <param name="hostID">UUID of the SceneObjectPart</param>
+        /// <param name="channel">channel to listen on</param>
+        /// <param name="name">name to filter on</param>
+        /// <param name="id">
+        /// key to filter on (user given, could be totally faked)
+        /// </param>
         /// <param name="msg">msg to filter on</param>
+        /// <param name="regexBitfield">
+        /// Bitfield indicating which strings should be processed as regex.
+        /// </param>
         /// <returns>number of the scripts handle</returns>
-        public int Listen(uint localID, UUID itemID, UUID hostID, int channel, string name, UUID id, string msg)
+        public int Listen(uint localID, UUID itemID, UUID hostID, int channel,
+                string name, UUID id, string msg, int regexBitfield)
         {
-            return m_listenerManager.AddListener(localID, itemID, hostID, channel, name, id, msg);
+            return m_listenerManager.AddListener(localID, itemID, hostID,
+                    channel, name, id, msg, regexBitfield);
         }
 
         /// <summary>
@@ -326,7 +357,7 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
                 if (channel == 0)
                 {
                     // Channel 0 goes to viewer ONLY
-                    m_scene.SimChat(Utils.StringToBytes(msg), ChatTypeEnum.Broadcast, 0, pos, name, id, false, false, target);
+                    m_scene.SimChat(Utils.StringToBytes(msg), ChatTypeEnum.Broadcast, 0, pos, name, id, target, false, false);
                     return true;
                 }
 
@@ -470,15 +501,25 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
             m_curlisteners = 0;
         }
 
-        public int AddListener(uint localID, UUID itemID, UUID hostID, int channel, string name, UUID id, string msg)
+        public int AddListener(uint localID, UUID itemID, UUID hostID,
+                int channel, string name, UUID id, string msg)
+        {
+            return AddListener(localID, itemID, hostID, channel, name, id,
+                    msg, 0);
+        }
+
+        public int AddListener(uint localID, UUID itemID, UUID hostID,
+                int channel, string name, UUID id, string msg,
+                int regexBitfield)
         {
             // do we already have a match on this particular filter event?
-            List<ListenerInfo> coll = GetListeners(itemID, channel, name, id, msg);
+            List<ListenerInfo> coll = GetListeners(itemID, channel, name, id,
+                    msg);
 
             if (coll.Count > 0)
             {
-                // special case, called with same filter settings, return same handle
-                // (2008-05-02, tested on 1.21.1 server, still holds)
+                // special case, called with same filter settings, return same
+                // handle (2008-05-02, tested on 1.21.1 server, still holds)
                 return coll[0].GetHandle();
             }
 
@@ -490,7 +531,9 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
 
                     if (newHandle > 0)
                     {
-                        ListenerInfo li = new ListenerInfo(newHandle, localID, itemID, hostID, channel, name, id, msg);
+                        ListenerInfo li = new ListenerInfo(newHandle, localID,
+                                itemID, hostID, channel, name, id, msg,
+                                regexBitfield);
 
                             List<ListenerInfo> listeners;
                             if (!m_listeners.TryGetValue(channel,out listeners))
@@ -631,6 +674,22 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
             return -1;
         }
 
+        /// These are duplicated from ScriptBaseClass
+        /// http://opensimulator.org/mantis/view.php?id=6106#c21945
+        #region Constants for the bitfield parameter of osListenRegex
+
+        /// <summary>
+        /// process name parameter as regex
+        /// </summary>
+        public const int OS_LISTEN_REGEX_NAME = 0x1;
+
+        /// <summary>
+        /// process message parameter as regex
+        /// </summary>
+        public const int OS_LISTEN_REGEX_MESSAGE = 0x2;
+
+        #endregion
+
         // Theres probably a more clever and efficient way to
         // do this, maybe with regex.
         // PM2008: Ha, one could even be smart and define a specialized Enumerator.
@@ -656,7 +715,10 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
                     {
                         continue;
                     }
-                    if (li.GetName().Length > 0 && !li.GetName().Equals(name))
+                    if (li.GetName().Length > 0 && (
+                        ((li.RegexBitfield & OS_LISTEN_REGEX_NAME) != OS_LISTEN_REGEX_NAME && !li.GetName().Equals(name)) ||
+                        ((li.RegexBitfield & OS_LISTEN_REGEX_NAME) == OS_LISTEN_REGEX_NAME && !Regex.IsMatch(name, li.GetName()))
+                    ))
                     {
                         continue;
                     }
@@ -664,7 +726,10 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
                     {
                         continue;
                     }
-                    if (li.GetMessage().Length > 0 && !li.GetMessage().Equals(msg))
+                    if (li.GetMessage().Length > 0 && (
+                        ((li.RegexBitfield & OS_LISTEN_REGEX_MESSAGE) != OS_LISTEN_REGEX_MESSAGE && !li.GetMessage().Equals(msg)) ||
+                        ((li.RegexBitfield & OS_LISTEN_REGEX_MESSAGE) == OS_LISTEN_REGEX_MESSAGE && !Regex.IsMatch(msg, li.GetMessage()))
+                    ))
                     {
                         continue;
                     }
@@ -697,10 +762,13 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
         {
             int idx = 0;
             Object[] item = new Object[6];
+            int dataItemLength = 6;
 
             while (idx < data.Length)
             {
-                Array.Copy(data, idx, item, 0, 6);
+                dataItemLength = (idx + 7 == data.Length || (idx + 7 < data.Length && data[idx + 7] is bool)) ? 7 : 6;
+                item = new Object[dataItemLength];
+                Array.Copy(data, idx, item, 0, dataItemLength);
 
                 ListenerInfo info =
                         ListenerInfo.FromData(localID, itemID, hostID, item);
@@ -712,12 +780,12 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
                     m_listeners[(int)item[2]].Add(info);
                 }
 
-                idx+=6;
+                idx+=dataItemLength;
             }
         }
     }
 
-    public class ListenerInfo: IWorldCommListenerInfo
+    public class ListenerInfo : IWorldCommListenerInfo
     {
         private bool m_active; // Listener is active or not
         private int m_handle; // Assigned handle of this listener
@@ -731,16 +799,29 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
 
         public ListenerInfo(int handle, uint localID, UUID ItemID, UUID hostID, int channel, string name, UUID id, string message)
         {
-            Initialise(handle, localID, ItemID, hostID, channel, name, id, message);
+            Initialise(handle, localID, ItemID, hostID, channel, name, id,
+                    message, 0);
+        }
+
+        public ListenerInfo(int handle, uint localID, UUID ItemID,
+                UUID hostID, int channel, string name, UUID id,
+                string message, int regexBitfield)
+        {
+            Initialise(handle, localID, ItemID, hostID, channel, name, id,
+                    message, regexBitfield);
         }
 
         public ListenerInfo(ListenerInfo li, string name, UUID id, string message)
         {
-            Initialise(li.m_handle, li.m_localID, li.m_itemID, li.m_hostID, li.m_channel, name, id, message);
+            Initialise(li.m_handle, li.m_localID, li.m_itemID, li.m_hostID, li.m_channel, name, id, message, 0);
+        }
+
+        public ListenerInfo(ListenerInfo li, string name, UUID id, string message, int regexBitfield)
+        {
+            Initialise(li.m_handle, li.m_localID, li.m_itemID, li.m_hostID, li.m_channel, name, id, message, regexBitfield);
         }
 
-        private void Initialise(int handle, uint localID, UUID ItemID, UUID hostID, int channel, string name,
-                                UUID id, string message)
+        private void Initialise(int handle, uint localID, UUID ItemID, UUID hostID, int channel, string name, UUID id, string message, int regexBitfield)
         {
             m_active = true;
             m_handle = handle;
@@ -751,11 +832,12 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
             m_name = name;
             m_id = id;
             m_message = message;
+            RegexBitfield = regexBitfield;
         }
 
         public Object[] GetSerializationData()
         {
-            Object[] data = new Object[6];
+            Object[] data = new Object[7];
 
             data[0] = m_active;
             data[1] = m_handle;
@@ -763,16 +845,19 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
             data[3] = m_name;
             data[4] = m_id;
             data[5] = m_message;
+            data[6] = RegexBitfield;
 
             return data;
         }
 
         public static ListenerInfo FromData(uint localID, UUID ItemID, UUID hostID, Object[] data)
         {
-            ListenerInfo linfo = new ListenerInfo((int)data[1], localID,
-                    ItemID, hostID, (int)data[2], (string)data[3],
-                    (UUID)data[4], (string)data[5]);
-            linfo.m_active=(bool)data[0];
+            ListenerInfo linfo = new ListenerInfo((int)data[1], localID, ItemID, hostID, (int)data[2], (string)data[3], (UUID)data[4], (string)data[5]);
+            linfo.m_active = (bool)data[0];
+            if (data.Length >= 7)
+            {
+                linfo.RegexBitfield = (int)data[6];
+            }
 
             return linfo;
         }
@@ -831,5 +916,7 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
         {
             return m_id;
         }
+
+        public int RegexBitfield { get; private set; }
     }
 }
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Asset/HGAssetBroker.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Asset/HGAssetBroker.cs
index 008465f..1e1c7d0 100644
--- a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Asset/HGAssetBroker.cs
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Asset/HGAssetBroker.cs
@@ -56,6 +56,8 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Asset
 
         private bool m_Enabled = false;
 
+        private AssetPermissions m_AssetPerms;
+
         public Type ReplaceableInterface 
         {
             get { return null; }
@@ -128,6 +130,9 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Asset
                     if (m_LocalAssetServiceURI != string.Empty)
                         m_LocalAssetServiceURI = m_LocalAssetServiceURI.Trim('/');
 
+                    IConfig hgConfig = source.Configs["HGAssetService"];
+                    m_AssetPerms = new AssetPermissions(hgConfig); // it's ok if arg is null
+
                     m_Enabled = true;
                     m_log.Info("[HG ASSET CONNECTOR]: HG asset broker enabled");
                 }
@@ -206,14 +211,11 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Asset
                 asset = m_HGService.Get(id);
                 if (asset != null)
                 {
-                    // Now store it locally
-                    // For now, let me just do it for textures and scripts
-                    if (((AssetType)asset.Type == AssetType.Texture) ||
-                        ((AssetType)asset.Type == AssetType.LSLBytecode) ||
-                        ((AssetType)asset.Type == AssetType.LSLText))
-                    {
+                    // Now store it locally, if allowed
+                    if (m_AssetPerms.AllowedImport(asset.Type))
                         m_GridService.Store(asset);
-                    }
+                    else
+                        return null;
                 }
             }
             else
@@ -328,7 +330,12 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Asset
 
             string id = string.Empty;
             if (IsHG(asset.ID))
-                id = m_HGService.Store(asset);
+            {
+                if (m_AssetPerms.AllowedExport(asset.Type))
+                    id = m_HGService.Store(asset);
+                else
+                    return String.Empty;
+            }
             else
                 id = m_GridService.Store(asset);
 
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Asset/LocalAssetServiceConnector.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Asset/LocalAssetServiceConnector.cs
index c78915f..449c1f1 100644
--- a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Asset/LocalAssetServiceConnector.cs
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Asset/LocalAssetServiceConnector.cs
@@ -204,8 +204,11 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Asset
         public byte[] GetData(string id)
         {
 //            m_log.DebugFormat("[LOCAL ASSET SERVICES CONNECTOR]: Requesting data for asset {0}", id);
-            
-            AssetBase asset = m_Cache.Get(id);
+
+            AssetBase asset = null;
+
+            if (m_Cache != null)
+                asset = m_Cache.Get(id);
 
             if (asset != null)
                 return asset.Data;
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Asset/Tests/AssetConnectorTests.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Asset/Tests/AssetConnectorTests.cs
new file mode 100644
index 0000000..1982473
--- /dev/null
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Asset/Tests/AssetConnectorTests.cs
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Reflection;
+using System.Threading;
+using log4net.Config;
+using Nini.Config;
+using NUnit.Framework;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.CoreModules.ServiceConnectorsOut.Asset;
+using OpenSim.Tests.Common;
+
+namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Asset.Tests
+{
+    [TestFixture]
+    public class AssetConnectorsTests : OpenSimTestCase
+    {
+        [Test]
+        public void TestAddAsset()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            IConfigSource config = new IniConfigSource();
+            config.AddConfig("Modules");
+            config.Configs["Modules"].Set("AssetServices", "LocalAssetServicesConnector");
+            config.AddConfig("AssetService");
+            config.Configs["AssetService"].Set("LocalServiceModule", "OpenSim.Services.AssetService.dll:AssetService");
+            config.Configs["AssetService"].Set("StorageProvider", "OpenSim.Tests.Common.dll");
+
+            LocalAssetServicesConnector lasc = new LocalAssetServicesConnector();
+            lasc.Initialise(config);
+
+            AssetBase a1 = AssetHelpers.CreateNotecardAsset();
+            lasc.Store(a1);
+
+            AssetBase retreivedA1 = lasc.Get(a1.ID);
+            Assert.That(retreivedA1.ID, Is.EqualTo(a1.ID));
+            Assert.That(retreivedA1.Metadata.ID, Is.EqualTo(a1.Metadata.ID));
+            Assert.That(retreivedA1.Data.Length, Is.EqualTo(a1.Data.Length));
+
+            AssetMetadata retrievedA1Metadata = lasc.GetMetadata(a1.ID);
+            Assert.That(retrievedA1Metadata.ID, Is.EqualTo(a1.ID));
+
+            byte[] retrievedA1Data = lasc.GetData(a1.ID);
+            Assert.That(retrievedA1Data.Length, Is.EqualTo(a1.Data.Length));
+
+            // TODO: Add cache and check that this does receive a copy of the asset
+        }
+
+        [Test]
+        public void TestAddTemporaryAsset()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            IConfigSource config = new IniConfigSource();
+            config.AddConfig("Modules");
+            config.Configs["Modules"].Set("AssetServices", "LocalAssetServicesConnector");
+            config.AddConfig("AssetService");
+            config.Configs["AssetService"].Set("LocalServiceModule", "OpenSim.Services.AssetService.dll:AssetService");
+            config.Configs["AssetService"].Set("StorageProvider", "OpenSim.Tests.Common.dll");
+
+            LocalAssetServicesConnector lasc = new LocalAssetServicesConnector();
+            lasc.Initialise(config);
+
+            AssetBase a1 = AssetHelpers.CreateNotecardAsset();
+            a1.Temporary = true;
+
+            lasc.Store(a1);
+
+            Assert.That(lasc.Get(a1.ID), Is.Null);
+            Assert.That(lasc.GetData(a1.ID), Is.Null);
+            Assert.That(lasc.GetMetadata(a1.ID), Is.Null);
+
+            // TODO: Add cache and check that this does receive a copy of the asset
+        }
+
+        [Test]
+        public void TestAddLocalAsset()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            IConfigSource config = new IniConfigSource();
+            config.AddConfig("Modules");
+            config.Configs["Modules"].Set("AssetServices", "LocalAssetServicesConnector");
+            config.AddConfig("AssetService");
+            config.Configs["AssetService"].Set("LocalServiceModule", "OpenSim.Services.AssetService.dll:AssetService");
+            config.Configs["AssetService"].Set("StorageProvider", "OpenSim.Tests.Common.dll");
+
+            LocalAssetServicesConnector lasc = new LocalAssetServicesConnector();
+            lasc.Initialise(config);
+
+            AssetBase a1 = AssetHelpers.CreateNotecardAsset();
+            a1.Local = true;
+
+            lasc.Store(a1);
+
+            Assert.That(lasc.Get(a1.ID), Is.Null);
+            Assert.That(lasc.GetData(a1.ID), Is.Null);
+            Assert.That(lasc.GetMetadata(a1.ID), Is.Null);
+
+            // TODO: Add cache and check that this does receive a copy of the asset
+        }
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/Tests/GridConnectorsTests.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/Tests/GridConnectorsTests.cs
index b286d17..4338133 100644
--- a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/Tests/GridConnectorsTests.cs
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/Tests/GridConnectorsTests.cs
@@ -43,11 +43,15 @@ using OpenSim.Tests.Common;
 namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Grid.Tests
 {
     [TestFixture]
-    public class GridConnectorsTests
+    public class GridConnectorsTests : OpenSimTestCase
     {
         LocalGridServicesConnector m_LocalConnector;
-        private void SetUp()
+
+        [SetUp]
+        public override void SetUp()
         {
+            base.SetUp();
+
             IConfigSource config = new IniConfigSource();
             config.AddConfig("Modules");
             config.AddConfig("GridService");
@@ -71,8 +75,6 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Grid.Tests
             TestHelpers.InMethod();
 //            log4net.Config.XmlConfigurator.Configure();
 
-            SetUp();
-
             // Create 4 regions
             GridRegion r1 = new GridRegion();
             r1.RegionName = "Test Region 1";
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/GridUser/ActivityDetector.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/GridUser/ActivityDetector.cs
index b0edce7..221f815 100644
--- a/OpenSim/Region/CoreModules/ServiceConnectorsOut/GridUser/ActivityDetector.cs
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/GridUser/ActivityDetector.cs
@@ -65,11 +65,13 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.GridUser
 
         public void OnMakeRootAgent(ScenePresence sp)
         {
-//            m_log.DebugFormat("[ACTIVITY DETECTOR]: Detected root presence {0} in {1}", sp.UUID, sp.Scene.RegionInfo.RegionName);
-
             if (sp.PresenceType != PresenceType.Npc)
+            {
+                string userid = sp.Scene.UserManagementModule.GetUserUUI(sp.UUID);
+                //m_log.DebugFormat("[ACTIVITY DETECTOR]: Detected root presence {0} in {1}", userid, sp.Scene.RegionInfo.RegionName);
                 m_GridUserService.SetLastPosition(
-                    sp.UUID.ToString(), UUID.Zero, sp.Scene.RegionInfo.RegionID, sp.AbsolutePosition, sp.Lookat);
+                    userid, UUID.Zero, sp.Scene.RegionInfo.RegionID, sp.AbsolutePosition, sp.Lookat);
+            }
         }
 
         public void OnNewClient(IClientAPI client)
@@ -82,9 +84,16 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.GridUser
             if (client.SceneAgent.IsChildAgent)
                 return;
 
-//            m_log.DebugFormat("[ACTIVITY DETECTOR]: Detected client logout {0} in {1}", client.AgentId, client.Scene.RegionInfo.RegionName);
+            string userId = client.AgentId.ToString();
+            if (client.Scene is Scene)
+            {
+                Scene s = (Scene)client.Scene;
+                userId = s.UserManagementModule.GetUserUUI(client.AgentId);
+            }
+            //m_log.DebugFormat("[ACTIVITY DETECTOR]: Detected client logout {0} in {1}", userId, client.Scene.RegionInfo.RegionName);
+
             m_GridUserService.LoggedOut(
-                client.AgentId.ToString(), client.SessionId, client.Scene.RegionInfo.RegionID,
+                userId, client.SessionId, client.Scene.RegionInfo.RegionID,
                 client.SceneAgent.AbsolutePosition, client.SceneAgent.Lookat);
         }
     }
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/GridUser/RemoteGridUserServiceConnector.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/GridUser/RemoteGridUserServiceConnector.cs
index badb552..04acf67 100644
--- a/OpenSim/Region/CoreModules/ServiceConnectorsOut/GridUser/RemoteGridUserServiceConnector.cs
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/GridUser/RemoteGridUserServiceConnector.cs
@@ -44,6 +44,9 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.GridUser
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
+        private const int KEEPTIME = 30; // 30 secs
+        private ExpiringCache<string, GridUserInfo> m_Infos = new ExpiringCache<string, GridUserInfo>();
+
         #region ISharedRegionModule
 
         private bool m_Enabled = false;
@@ -128,23 +131,60 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.GridUser
 
         public bool LoggedOut(string userID, UUID sessionID, UUID region, Vector3 position, Vector3 lookat)
         {
+            if (m_Infos.Contains(userID))
+                m_Infos.Remove(userID);
+
             return m_RemoteConnector.LoggedOut(userID, sessionID, region, position, lookat);
         }
 
 
         public bool SetHome(string userID, UUID regionID, Vector3 position, Vector3 lookAt)
         {
-            return m_RemoteConnector.SetHome(userID, regionID, position, lookAt);
+            if (m_RemoteConnector.SetHome(userID, regionID, position, lookAt))
+            {
+                // Update the cache too
+                GridUserInfo info = null;
+                if (m_Infos.TryGetValue(userID, out info))
+                {
+                    info.HomeRegionID = regionID;
+                    info.HomePosition = position;
+                    info.HomeLookAt = lookAt;
+                }
+                return true;
+            }
+
+            return false;
         }
 
         public bool SetLastPosition(string userID, UUID sessionID, UUID regionID, Vector3 position, Vector3 lookAt)
         {
-            return m_RemoteConnector.SetLastPosition(userID, sessionID, regionID, position, lookAt);
+            if (m_RemoteConnector.SetLastPosition(userID, sessionID, regionID, position, lookAt))
+            {
+                // Update the cache too
+                GridUserInfo info = null;
+                if (m_Infos.TryGetValue(userID, out info))
+                {
+                    info.LastRegionID = regionID;
+                    info.LastPosition = position;
+                    info.LastLookAt = lookAt;
+                }
+                return true;
+            }
+
+            return false;
         }
 
         public GridUserInfo GetGridUserInfo(string userID)
         {
-            return m_RemoteConnector.GetGridUserInfo(userID);
+            GridUserInfo info = null;
+            if (m_Infos.TryGetValue(userID, out info))
+                return info;
+
+            info = m_RemoteConnector.GetGridUserInfo(userID);
+
+            m_Infos.AddOrUpdate(userID, info, KEEPTIME);
+
+            return info;
         }
 
         public GridUserInfo[] GetGridUserInfo(string[] userID)
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Simulation/LocalSimulationConnector.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Simulation/LocalSimulationConnector.cs
index 6eb99ea..8ed1833 100644
--- a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Simulation/LocalSimulationConnector.cs
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Simulation/LocalSimulationConnector.cs
@@ -313,7 +313,11 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Simulation
 
             if (m_scenes.ContainsKey(destination.RegionID))
             {
-                Util.FireAndForget(delegate { m_scenes[destination.RegionID].IncomingCloseAgent(id); });
+//                    m_log.DebugFormat(
+//                        "[LOCAL SIMULATION CONNECTOR]: Found region {0} {1} to send AgentUpdate",
+//                        s.RegionInfo.RegionName, destination.RegionHandle);
+
+                Util.FireAndForget(delegate { m_scenes[destination.RegionID].IncomingCloseAgent(id, false); });
                 return true;
             }
             //m_log.Debug("[LOCAL COMMS]: region not found in SendCloseAgent");
diff --git a/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs b/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs
index 619550c..ade5e76 100644
--- a/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs
+++ b/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs
@@ -43,6 +43,7 @@ using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
 using OpenSim.Region.Framework.Scenes.Serialization;
 using OpenSim.Services.Interfaces;
+using System.Threading;
 
 namespace OpenSim.Region.CoreModules.World.Archiver
 {
@@ -52,7 +53,30 @@ namespace OpenSim.Region.CoreModules.World.Archiver
     public class ArchiveReadRequest
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        /// <summary>
+        /// Contains data used while dearchiving a single scene.
+        /// </summary>
+        private class DearchiveContext
+        {
+            public Scene Scene { get; set; }
+
+            public List<string> SerialisedSceneObjects { get; set; }
+
+            public List<string> SerialisedParcels { get; set; }
+
+            public List<SceneObjectGroup> SceneObjects { get; set; }
+
+            public DearchiveContext(Scene scene)
+            {
+                Scene = scene;
+                SerialisedSceneObjects = new List<string>();
+                SerialisedParcels = new List<string>();
+                SceneObjects = new List<SceneObjectGroup>();
+            }
+        }
         
+
         /// <summary>
         /// The maximum major version of OAR that we can read.  Minor versions shouldn't need a max number since version
         /// bumps here should be compatible.
@@ -62,9 +86,10 @@ namespace OpenSim.Region.CoreModules.World.Archiver
         /// <summary>
         /// Has the control file been loaded for this archive?
         /// </summary>
-        public bool ControlFileLoaded { get; private set; }        
+        public bool ControlFileLoaded { get; private set; }
 
-        protected Scene m_scene;
+        protected string m_loadPath;
+        protected Scene m_rootScene;
         protected Stream m_loadStream;
         protected Guid m_requestId;
         protected string m_errorMessage;
@@ -91,16 +116,27 @@ namespace OpenSim.Region.CoreModules.World.Archiver
             {
                 if (m_UserMan == null)
                 {
-                    m_UserMan = m_scene.RequestModuleInterface<IUserManagement>();
+                    m_UserMan = m_rootScene.RequestModuleInterface<IUserManagement>();
                 }
                 return m_UserMan;
             }
         }
 
+        /// <summary>
+        /// Used to cache lookups for valid groups.
+        /// </summary>
+        private IDictionary<UUID, bool> m_validGroupUuids = new Dictionary<UUID, bool>();
+
+        private IGroupsModule m_groupsModule;
+
+        private IAssetService m_assetService = null;
+
+
         public ArchiveReadRequest(Scene scene, string loadPath, bool merge, bool skipAssets, Guid requestId)
         {
-            m_scene = scene;
+            m_rootScene = scene;
 
+            m_loadPath = loadPath;
             try
             {
                 m_loadStream = new GZipStream(ArchiveHelpers.GetStream(loadPath), CompressionMode.Decompress);
@@ -120,11 +156,15 @@ namespace OpenSim.Region.CoreModules.World.Archiver
 
             // Zero can never be a valid user id
             m_validUserUuids[UUID.Zero] = false;
+
+            m_groupsModule = m_rootScene.RequestModuleInterface<IGroupsModule>();
+            m_assetService = m_rootScene.AssetService;
         }
 
         public ArchiveReadRequest(Scene scene, Stream loadStream, bool merge, bool skipAssets, Guid requestId)
         {
-            m_scene = scene;
+            m_rootScene = scene;
+            m_loadPath = null;
             m_loadStream = loadStream;
             m_merge = merge;
             m_skipAssets = skipAssets;
@@ -132,6 +172,9 @@ namespace OpenSim.Region.CoreModules.World.Archiver
 
             // Zero can never be a valid user id
             m_validUserUuids[UUID.Zero] = false;
+
+            m_groupsModule = m_rootScene.RequestModuleInterface<IGroupsModule>();
+            m_assetService = m_rootScene.AssetService;
         }
 
         /// <summary>
@@ -139,25 +182,25 @@ namespace OpenSim.Region.CoreModules.World.Archiver
         /// </summary>
         public void DearchiveRegion()
         {
-            // The same code can handle dearchiving 0.1 and 0.2 OpenSim Archive versions
-            DearchiveRegion0DotStar();
-        }
-
-        private void DearchiveRegion0DotStar()
-        {
             int successfulAssetRestores = 0;
             int failedAssetRestores = 0;
-            List<string> serialisedSceneObjects = new List<string>();
-            List<string> serialisedParcels = new List<string>();
-            string filePath = "NONE";
 
-            TarArchiveReader archive = new TarArchiveReader(m_loadStream);
+            DearchiveScenesInfo dearchivedScenes;
+
+            // We dearchive all the scenes at once, because the files in the TAR archive might be mixed.
+            // Therefore, we have to keep track of the dearchive context of all the scenes.
+            Dictionary<UUID, DearchiveContext> sceneContexts = new Dictionary<UUID, DearchiveContext>();
+
+            string fullPath = "NONE";
+            TarArchiveReader archive = null;
             byte[] data;
             TarArchiveReader.TarEntryType entryType;
-            
+
             try
             {
-                while ((data = archive.ReadEntry(out filePath, out entryType)) != null)
+                FindAndLoadControlFile(out archive, out dearchivedScenes);
+
+                while ((data = archive.ReadEntry(out fullPath, out entryType)) != null)
                 {
                     //m_log.DebugFormat(
                     //    "[ARCHIVER]: Successfully read {0} ({1} bytes)", filePath, data.Length);
@@ -165,9 +208,30 @@ namespace OpenSim.Region.CoreModules.World.Archiver
                     if (TarArchiveReader.TarEntryType.TYPE_DIRECTORY == entryType)
                         continue;
 
+
+                    // Find the scene that this file belongs to
+
+                    Scene scene;
+                    string filePath;
+                    if (!dearchivedScenes.GetRegionFromPath(fullPath, out scene, out filePath))
+                        continue;   // this file belongs to a region that we're not loading
+
+                    DearchiveContext sceneContext = null;
+                    if (scene != null)
+                    {
+                        if (!sceneContexts.TryGetValue(scene.RegionInfo.RegionID, out sceneContext))
+                        {
+                            sceneContext = new DearchiveContext(scene);
+                            sceneContexts.Add(scene.RegionInfo.RegionID, sceneContext);
+                        }
+                    }
+
+
+                    // Process the file
+
                     if (filePath.StartsWith(ArchiveConstants.OBJECTS_PATH))
                     {
-                        serialisedSceneObjects.Add(Encoding.UTF8.GetString(data));
+                        sceneContext.SerialisedSceneObjects.Add(Encoding.UTF8.GetString(data));
                     }
                     else if (filePath.StartsWith(ArchiveConstants.ASSETS_PATH) && !m_skipAssets)
                     {
@@ -181,19 +245,19 @@ namespace OpenSim.Region.CoreModules.World.Archiver
                     }
                     else if (!m_merge && filePath.StartsWith(ArchiveConstants.TERRAINS_PATH))
                     {
-                        LoadTerrain(filePath, data);
+                        LoadTerrain(scene, filePath, data);
                     }
                     else if (!m_merge && filePath.StartsWith(ArchiveConstants.SETTINGS_PATH))
                     {
-                        LoadRegionSettings(filePath, data);
+                        LoadRegionSettings(scene, filePath, data, dearchivedScenes);
                     } 
                     else if (!m_merge && filePath.StartsWith(ArchiveConstants.LANDDATA_PATH))
                     {
-                        serialisedParcels.Add(Encoding.UTF8.GetString(data));
+                        sceneContext.SerialisedParcels.Add(Encoding.UTF8.GetString(data));
                     } 
                     else if (filePath == ArchiveConstants.CONTROL_FILE_PATH)
                     {
-                        LoadControlFile(filePath, data);
+                        // Ignore, because we already read the control file
                     }
                 }
 
@@ -201,15 +265,16 @@ namespace OpenSim.Region.CoreModules.World.Archiver
             }
             catch (Exception e)
             {
-                m_log.ErrorFormat(
-                    "[ARCHIVER]: Aborting load with error in archive file {0}.  {1}", filePath, e);
+                m_log.Error(
+                    String.Format("[ARCHIVER]: Aborting load with error in archive file {0} ", fullPath), e);
                 m_errorMessage += e.ToString();
-                m_scene.EventManager.TriggerOarFileLoaded(m_requestId, m_errorMessage);
+                m_rootScene.EventManager.TriggerOarFileLoaded(m_requestId, new List<UUID>(), m_errorMessage);
                 return;
             }
             finally
             {
-                archive.Close();
+                if (archive != null)
+                    archive.Close();
             }
 
             if (!m_skipAssets)
@@ -223,32 +288,143 @@ namespace OpenSim.Region.CoreModules.World.Archiver
                 }
             }
 
-            if (!m_merge)
+            foreach (DearchiveContext sceneContext in sceneContexts.Values)
             {
-                m_log.Info("[ARCHIVER]: Clearing all existing scene objects");
-                m_scene.DeleteAllSceneObjects();
+                m_log.InfoFormat("[ARCHIVER]: Loading region {0}", sceneContext.Scene.RegionInfo.RegionName);
+
+                if (!m_merge)
+                {
+                    m_log.Info("[ARCHIVER]: Clearing all existing scene objects");
+                    sceneContext.Scene.DeleteAllSceneObjects();
+                }
+
+                try
+                {
+                    LoadParcels(sceneContext.Scene, sceneContext.SerialisedParcels);
+                    LoadObjects(sceneContext.Scene, sceneContext.SerialisedSceneObjects, sceneContext.SceneObjects);
+                    
+                    // Inform any interested parties that the region has changed. We waited until now so that all
+                    // of the region's objects will be loaded when we send this notification.
+                    IEstateModule estateModule = sceneContext.Scene.RequestModuleInterface<IEstateModule>();
+                    if (estateModule != null)
+                        estateModule.TriggerRegionInfoChange();
+                }
+                catch (Exception e)
+                {
+                    m_log.Error("[ARCHIVER]: Error loading parcels or objects ", e);
+                    m_errorMessage += e.ToString();
+                    m_rootScene.EventManager.TriggerOarFileLoaded(m_requestId, new List<UUID>(), m_errorMessage);
+                    return;
+                }
             }
 
-            LoadParcels(serialisedParcels);
-            LoadObjects(serialisedSceneObjects);
+            // Start the scripts. We delayed this because we want the OAR to finish loading ASAP, so
+            // that users can enter the scene. If we allow the scripts to start in the loop above
+            // then they significantly increase the time until the OAR finishes loading.
+            Util.FireAndForget(delegate(object o)
+            {
+                Thread.Sleep(15000);
+                m_log.Info("[ARCHIVER]: Starting scripts in scene objects");
+
+                foreach (DearchiveContext sceneContext in sceneContexts.Values)
+                {
+                    foreach (SceneObjectGroup sceneObject in sceneContext.SceneObjects)
+                    {
+                        sceneObject.CreateScriptInstances(0, false, sceneContext.Scene.DefaultScriptEngine, 0); // StateSource.RegionStart
+                        sceneObject.ResumeScripts();
+                    }
+
+                    sceneContext.SceneObjects.Clear();
+                }
+            });
 
             m_log.InfoFormat("[ARCHIVER]: Successfully loaded archive");
 
-            m_scene.EventManager.TriggerOarFileLoaded(m_requestId, m_errorMessage);
+            m_rootScene.EventManager.TriggerOarFileLoaded(m_requestId, dearchivedScenes.GetLoadedScenes(), m_errorMessage);
+        }
+
+        /// <summary>
+        /// Searches through the files in the archive for the control file, and reads it.
+        /// We must read the control file first, in order to know which regions are available.
+        /// </summary>
+        /// <remarks>
+        /// In most cases the control file *is* first, since that's how we create archives. However,
+        /// it's possible that someone rewrote the archive externally so we can't rely on this fact.
+        /// </remarks>
+        /// <param name="archive"></param>
+        /// <param name="dearchivedScenes"></param>
+        private void FindAndLoadControlFile(out TarArchiveReader archive, out DearchiveScenesInfo dearchivedScenes)
+        {
+            archive = new TarArchiveReader(m_loadStream);
+            dearchivedScenes = new DearchiveScenesInfo();
+
+            string filePath;
+            byte[] data;
+            TarArchiveReader.TarEntryType entryType;
+            bool firstFile = true;
+
+            while ((data = archive.ReadEntry(out filePath, out entryType)) != null)
+            {
+                if (TarArchiveReader.TarEntryType.TYPE_DIRECTORY == entryType)
+                    continue;
+                    
+                if (filePath == ArchiveConstants.CONTROL_FILE_PATH)
+                {
+                    LoadControlFile(filePath, data, dearchivedScenes);
+
+                    // Find which scenes are available in the simulator
+                    ArchiveScenesGroup simulatorScenes = new ArchiveScenesGroup();
+                    SceneManager.Instance.ForEachScene(delegate(Scene scene2)
+                    {
+                        simulatorScenes.AddScene(scene2);
+                    });
+                    simulatorScenes.CalcSceneLocations();
+                    dearchivedScenes.SetSimulatorScenes(m_rootScene, simulatorScenes);
+
+                    // If the control file wasn't the first file then reset the read pointer
+                    if (!firstFile)
+                    {
+                        m_log.Warn("Control file wasn't the first file in the archive");
+                        if (m_loadStream.CanSeek)
+                        {
+                            m_loadStream.Seek(0, SeekOrigin.Begin);
+                        }
+                        else if (m_loadPath != null)
+                        {
+                            archive.Close();
+                            archive = null;
+                            m_loadStream.Close();
+                            m_loadStream = null;
+                            m_loadStream = new GZipStream(ArchiveHelpers.GetStream(m_loadPath), CompressionMode.Decompress);
+                            archive = new TarArchiveReader(m_loadStream);
+                        }
+                        else
+                        {
+                            // There isn't currently a scenario where this happens, but it's best to add a check just in case
+                            throw new Exception("Error reading archive: control file wasn't the first file, and the input stream doesn't allow seeking");
+                        }
+                    }
+
+                    return;
+                }
+
+                firstFile = false;
+            }
+
+            throw new Exception("Control file not found");
         }
         
         /// <summary>
         /// Load serialized scene objects.
         /// </summary>
-        /// <param name="serialisedSceneObjects"></param>
-        protected void LoadObjects(List<string> serialisedSceneObjects)
+        protected void LoadObjects(Scene scene, List<string> serialisedSceneObjects, List<SceneObjectGroup> sceneObjects)
         {
             // Reload serialized prims
             m_log.InfoFormat("[ARCHIVER]: Loading {0} scene objects.  Please wait.", serialisedSceneObjects.Count);
 
-            UUID oldTelehubUUID = m_scene.RegionInfo.RegionSettings.TelehubObject;
+            UUID oldTelehubUUID = scene.RegionInfo.RegionSettings.TelehubObject;
 
-            IRegionSerialiserModule serialiser = m_scene.RequestModuleInterface<IRegionSerialiserModule>();
+            IRegionSerialiserModule serialiser = scene.RequestModuleInterface<IRegionSerialiserModule>();
             int sceneObjectsLoadedCount = 0;
 
             foreach (string serialisedSceneObject in serialisedSceneObjects)
@@ -269,7 +445,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver
 
                 SceneObjectGroup sceneObject = serialiser.DeserializeGroupFromXml2(serialisedSceneObject);
 
-                bool isTelehub = (sceneObject.UUID == oldTelehubUUID);
+                bool isTelehub = (sceneObject.UUID == oldTelehubUUID) && (oldTelehubUUID != UUID.Zero);
 
                 // For now, give all incoming scene objects new uuids.  This will allow scenes to be cloned
                 // on the same region server and multiple examples a single object archive to be imported
@@ -279,8 +455,8 @@ namespace OpenSim.Region.CoreModules.World.Archiver
                 if (isTelehub)
                 {
                     // Change the Telehub Object to the new UUID
-                    m_scene.RegionInfo.RegionSettings.TelehubObject = sceneObject.UUID;
-                    m_scene.RegionInfo.RegionSettings.Save();
+                    scene.RegionInfo.RegionSettings.TelehubObject = sceneObject.UUID;
+                    scene.RegionInfo.RegionSettings.Save();
                     oldTelehubUUID = UUID.Zero;
                 }
 
@@ -290,17 +466,20 @@ namespace OpenSim.Region.CoreModules.World.Archiver
                 {
                     if (part.CreatorData == null || part.CreatorData == string.Empty)
                     {
-                        if (!ResolveUserUuid(part.CreatorID))
-                            part.CreatorID = m_scene.RegionInfo.EstateSettings.EstateOwner;
+                        if (!ResolveUserUuid(scene, part.CreatorID))
+                            part.CreatorID = scene.RegionInfo.EstateSettings.EstateOwner;
                     }
                     if (UserManager != null)
                         UserManager.AddUser(part.CreatorID, part.CreatorData);
 
-                    if (!ResolveUserUuid(part.OwnerID))
-                        part.OwnerID = m_scene.RegionInfo.EstateSettings.EstateOwner;
+                    if (!ResolveUserUuid(scene, part.OwnerID))
+                        part.OwnerID = scene.RegionInfo.EstateSettings.EstateOwner;
+
+                    if (!ResolveUserUuid(scene, part.LastOwnerID))
+                        part.LastOwnerID = scene.RegionInfo.EstateSettings.EstateOwner;
 
-                    if (!ResolveUserUuid(part.LastOwnerID))
-                        part.LastOwnerID = m_scene.RegionInfo.EstateSettings.EstateOwner;
+                    if (!ResolveGroupUuid(part.GroupID))
+                        part.GroupID = UUID.Zero;
 
                     // And zap any troublesome sit target information
 //                    part.SitTargetOrientation = new Quaternion(0, 0, 0, 1);
@@ -311,14 +490,14 @@ namespace OpenSim.Region.CoreModules.World.Archiver
                     // being no copy/no mod for everyone
                     lock (part.TaskInventory)
                     {
-                        if (!ResolveUserUuid(part.CreatorID))
-                            part.CreatorID = m_scene.RegionInfo.EstateSettings.EstateOwner;
+                        if (!ResolveUserUuid(scene, part.CreatorID))
+                            part.CreatorID = scene.RegionInfo.EstateSettings.EstateOwner;
     
-                        if (!ResolveUserUuid(part.OwnerID))
-                            part.OwnerID = m_scene.RegionInfo.EstateSettings.EstateOwner;
+                        if (!ResolveUserUuid(scene, part.OwnerID))
+                            part.OwnerID = scene.RegionInfo.EstateSettings.EstateOwner;
     
-                        if (!ResolveUserUuid(part.LastOwnerID))
-                            part.LastOwnerID = m_scene.RegionInfo.EstateSettings.EstateOwner;
+                        if (!ResolveUserUuid(scene, part.LastOwnerID))
+                            part.LastOwnerID = scene.RegionInfo.EstateSettings.EstateOwner;
     
                         // And zap any troublesome sit target information
                         part.SitTargetOrientation = new Quaternion(0, 0, 0, 1);
@@ -331,26 +510,31 @@ namespace OpenSim.Region.CoreModules.World.Archiver
                         TaskInventoryDictionary inv = part.TaskInventory;
                         foreach (KeyValuePair<UUID, TaskInventoryItem> kvp in inv)
                         {
-                            if (!ResolveUserUuid(kvp.Value.OwnerID))
+                            if (!ResolveUserUuid(scene, kvp.Value.OwnerID))
                             {
-                                kvp.Value.OwnerID = m_scene.RegionInfo.EstateSettings.EstateOwner;
+                                kvp.Value.OwnerID = scene.RegionInfo.EstateSettings.EstateOwner;
                             }
+
                             if (kvp.Value.CreatorData == null || kvp.Value.CreatorData == string.Empty)
                             {
-                                if (!ResolveUserUuid(kvp.Value.CreatorID))
-                                    kvp.Value.CreatorID = m_scene.RegionInfo.EstateSettings.EstateOwner;
+                                if (!ResolveUserUuid(scene, kvp.Value.CreatorID))
+                                    kvp.Value.CreatorID = scene.RegionInfo.EstateSettings.EstateOwner;
                             }
+
                             if (UserManager != null)
                                 UserManager.AddUser(kvp.Value.CreatorID, kvp.Value.CreatorData);
+
+                            if (!ResolveGroupUuid(kvp.Value.GroupID))
+                                kvp.Value.GroupID = UUID.Zero;
                         }
                         part.TaskInventory.LockItemsForRead(false);
                     }
                 }
 
-                if (m_scene.AddRestoredSceneObject(sceneObject, true, false))
+                if (scene.AddRestoredSceneObject(sceneObject, true, false))
                 {
                     sceneObjectsLoadedCount++;
-                    sceneObject.CreateScriptInstances(0, false, m_scene.DefaultScriptEngine, 0);
+                    sceneObject.CreateScriptInstances(0, false, scene.DefaultScriptEngine, 0);
                     sceneObject.ResumeScripts();
                 }
             }
@@ -365,16 +549,17 @@ namespace OpenSim.Region.CoreModules.World.Archiver
             if (oldTelehubUUID != UUID.Zero)
             {
                 m_log.WarnFormat("Telehub object not found: {0}", oldTelehubUUID);
-                m_scene.RegionInfo.RegionSettings.TelehubObject = UUID.Zero;
-                m_scene.RegionInfo.RegionSettings.ClearSpawnPoints();
+                scene.RegionInfo.RegionSettings.TelehubObject = UUID.Zero;
+                scene.RegionInfo.RegionSettings.ClearSpawnPoints();
             }
         }
         
         /// <summary>
         /// Load serialized parcels.
         /// </summary>
+        /// <param name="scene"></param>
         /// <param name="serialisedParcels"></param>
-        protected void LoadParcels(List<string> serialisedParcels)
+        protected void LoadParcels(Scene scene, List<string> serialisedParcels)
         {
             // Reload serialized parcels
             m_log.InfoFormat("[ARCHIVER]: Loading {0} parcels.  Please wait.", serialisedParcels.Count);
@@ -382,9 +567,27 @@ namespace OpenSim.Region.CoreModules.World.Archiver
             foreach (string serialisedParcel in serialisedParcels)
             {
                 LandData parcel = LandDataSerializer.Deserialize(serialisedParcel);
-                if (!ResolveUserUuid(parcel.OwnerID))
-                    parcel.OwnerID = m_scene.RegionInfo.EstateSettings.EstateOwner;
                 
+                // Validate User and Group UUID's
+
+                if (!ResolveUserUuid(scene, parcel.OwnerID))
+                    parcel.OwnerID = m_rootScene.RegionInfo.EstateSettings.EstateOwner;
+
+                if (!ResolveGroupUuid(parcel.GroupID))
+                {
+                    parcel.GroupID = UUID.Zero;
+                    parcel.IsGroupOwned = false;
+                }
+
+                List<LandAccessEntry> accessList = new List<LandAccessEntry>();
+                foreach (LandAccessEntry entry in parcel.ParcelAccessList)
+                {
+                    if (ResolveUserUuid(scene, entry.AgentID))
+                        accessList.Add(entry);
+                    // else, drop this access rule
+                }
+                parcel.ParcelAccessList = accessList;
+
 //                m_log.DebugFormat(
 //                    "[ARCHIVER]: Adding parcel {0}, local id {1}, area {2}", 
 //                    parcel.Name, parcel.LocalID, parcel.Area);
@@ -395,23 +598,24 @@ namespace OpenSim.Region.CoreModules.World.Archiver
             if (!m_merge)
             {
                 bool setupDefaultParcel = (landData.Count == 0);
-                m_scene.LandChannel.Clear(setupDefaultParcel);
+                scene.LandChannel.Clear(setupDefaultParcel);
             }
             
-            m_scene.EventManager.TriggerIncomingLandDataFromStorage(landData);
+            scene.EventManager.TriggerIncomingLandDataFromStorage(landData);
             m_log.InfoFormat("[ARCHIVER]: Restored {0} parcels.", landData.Count);
         }
 
         /// <summary>
         /// Look up the given user id to check whether it's one that is valid for this grid.
         /// </summary>
+        /// <param name="scene"></param>
         /// <param name="uuid"></param>
         /// <returns></returns>
-        private bool ResolveUserUuid(UUID uuid)
+        private bool ResolveUserUuid(Scene scene, UUID uuid)
         {
             if (!m_validUserUuids.ContainsKey(uuid))
             {
-                UserAccount account = m_scene.UserAccountService.GetUserAccount(m_scene.RegionInfo.ScopeID, uuid);
+                UserAccount account = scene.UserAccountService.GetUserAccount(scene.RegionInfo.ScopeID, uuid);
                 m_validUserUuids.Add(uuid, account != null);
             }
 
@@ -419,6 +623,30 @@ namespace OpenSim.Region.CoreModules.World.Archiver
         }
 
         /// <summary>
+        /// Look up the given group id to check whether it's one that is valid for this grid.
+        /// </summary>
+        /// <param name="uuid"></param>
+        /// <returns></returns>
+        private bool ResolveGroupUuid(UUID uuid)
+        {
+            if (uuid == UUID.Zero)
+                return true;    // this means the object has no group
+
+            if (!m_validGroupUuids.ContainsKey(uuid))
+            {
+                bool exists;
+                
+                if (m_groupsModule == null)
+                    exists = false;
+                else
+                    exists = (m_groupsModule.GetGroupRecord(uuid) != null);
+
+                m_validGroupUuids.Add(uuid, exists);
+            }
+
+            return m_validGroupUuids[uuid];
+        }
+
         /// Load an asset
         /// </summary>
         /// <param name="assetFilename"></param>
@@ -442,7 +670,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver
             string extension = filename.Substring(i);
             string uuid = filename.Remove(filename.Length - extension.Length);
 
-            if (m_scene.AssetService.GetMetadata(uuid) != null)
+            if (m_assetService.GetMetadata(uuid) != null)
             {
                 // m_log.DebugFormat("[ARCHIVER]: found existing asset {0}",uuid);
                 return true;
@@ -462,7 +690,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver
 
                 // We're relying on the asset service to do the sensible thing and not store the asset if it already
                 // exists.
-                m_scene.AssetService.Store(asset);
+                m_assetService.Store(asset);
 
                 /**
                  * Create layers on decode for image assets.  This is likely to significantly increase the time to load archives so
@@ -490,12 +718,14 @@ namespace OpenSim.Region.CoreModules.World.Archiver
         /// <summary>
         /// Load region settings data
         /// </summary>
+        /// <param name="scene"></param>
         /// <param name="settingsPath"></param>
         /// <param name="data"></param>
+        /// <param name="dearchivedScenes"></param>
         /// <returns>
         /// true if settings were loaded successfully, false otherwise
         /// </returns>
-        private bool LoadRegionSettings(string settingsPath, byte[] data)
+        private bool LoadRegionSettings(Scene scene, string settingsPath, byte[] data, DearchiveScenesInfo dearchivedScenes)
         {
             RegionSettings loadedRegionSettings;
 
@@ -511,7 +741,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver
                 return false;
             }
 
-            RegionSettings currentRegionSettings = m_scene.RegionInfo.RegionSettings;
+            RegionSettings currentRegionSettings = scene.RegionInfo.RegionSettings;
 
             currentRegionSettings.AgentLimit = loadedRegionSettings.AgentLimit;
             currentRegionSettings.AllowDamage = loadedRegionSettings.AllowDamage;
@@ -548,12 +778,14 @@ namespace OpenSim.Region.CoreModules.World.Archiver
             foreach (SpawnPoint sp in loadedRegionSettings.SpawnPoints())
                 currentRegionSettings.AddSpawnPoint(sp);
 
+            currentRegionSettings.LoadedCreationDateTime = dearchivedScenes.LoadedCreationDateTime;
+            currentRegionSettings.LoadedCreationID = dearchivedScenes.GetOriginalRegionID(scene.RegionInfo.RegionID).ToString();
+
             currentRegionSettings.Save();
 
-            m_scene.TriggerEstateSunUpdate();
+            scene.TriggerEstateSunUpdate();
             
-            IEstateModule estateModule = m_scene.RequestModuleInterface<IEstateModule>();
-
+            IEstateModule estateModule = scene.RequestModuleInterface<IEstateModule>();
             if (estateModule != null)
                 estateModule.sendRegionHandshakeToAll();
 
@@ -563,14 +795,15 @@ namespace OpenSim.Region.CoreModules.World.Archiver
         /// <summary>
         /// Load terrain data
         /// </summary>
+        /// <param name="scene"></param>
         /// <param name="terrainPath"></param>
         /// <param name="data"></param>
         /// <returns>
         /// true if terrain was resolved successfully, false otherwise.
         /// </returns>
-        private bool LoadTerrain(string terrainPath, byte[] data)
+        private bool LoadTerrain(Scene scene, string terrainPath, byte[] data)
         {
-            ITerrainModule terrainModule = m_scene.RequestModuleInterface<ITerrainModule>();
+            ITerrainModule terrainModule = scene.RequestModuleInterface<ITerrainModule>();
 
             MemoryStream ms = new MemoryStream(data);
             terrainModule.LoadFromStream(terrainPath, ms);
@@ -586,17 +819,18 @@ namespace OpenSim.Region.CoreModules.World.Archiver
         /// </summary>
         /// <param name="path"></param>
         /// <param name="data"></param>
-        public void LoadControlFile(string path, byte[] data)
+        /// <param name="dearchivedScenes"></param>
+        public DearchiveScenesInfo LoadControlFile(string path, byte[] data, DearchiveScenesInfo dearchivedScenes)
         {
             XmlNamespaceManager nsmgr = new XmlNamespaceManager(new NameTable());
             XmlParserContext context = new XmlParserContext(null, nsmgr, null, XmlSpace.None);
             XmlTextReader xtr = new XmlTextReader(Encoding.ASCII.GetString(data), XmlNodeType.Document, context);
 
-            RegionSettings currentRegionSettings = m_scene.RegionInfo.RegionSettings;
+            // Loaded metadata will be empty if no information exists in the archive
+            dearchivedScenes.LoadedCreationDateTime = 0;
+            dearchivedScenes.DefaultOriginalID = "";
 
-            // Loaded metadata will empty if no information exists in the archive
-            currentRegionSettings.LoadedCreationDateTime = 0;
-            currentRegionSettings.LoadedCreationID = "";
+            bool multiRegion = false;
 
             while (xtr.Read()) 
             {
@@ -622,18 +856,44 @@ namespace OpenSim.Region.CoreModules.World.Archiver
                     {
                         int value;
                         if (Int32.TryParse(xtr.ReadElementContentAsString(), out value))
-                            currentRegionSettings.LoadedCreationDateTime = value;
+                            dearchivedScenes.LoadedCreationDateTime = value;
                     } 
-                    else if (xtr.Name.ToString() == "id") 
+                    else if (xtr.Name.ToString() == "row")
+                    {
+                        multiRegion = true;
+                        dearchivedScenes.StartRow();
+                    }
+                    else if (xtr.Name.ToString() == "region")
+                    {
+                        dearchivedScenes.StartRegion();
+                    }
+                    else if (xtr.Name.ToString() == "id")
+                    {
+                        string id = xtr.ReadElementContentAsString();
+                        dearchivedScenes.DefaultOriginalID = id;
+                        if (multiRegion)
+                            dearchivedScenes.SetRegionOriginalID(id);
+                    }
+                    else if (xtr.Name.ToString() == "dir")
                     {
-                        currentRegionSettings.LoadedCreationID = xtr.ReadElementContentAsString();
+                        dearchivedScenes.SetRegionDirectory(xtr.ReadElementContentAsString());
                     }
                 }
             }
-            
-            currentRegionSettings.Save();
-            
+
+            dearchivedScenes.MultiRegionFormat = multiRegion;
+            if (!multiRegion)
+            {
+                // Add the single scene
+                dearchivedScenes.StartRow();
+                dearchivedScenes.StartRegion();
+                dearchivedScenes.SetRegionOriginalID(dearchivedScenes.DefaultOriginalID);
+                dearchivedScenes.SetRegionDirectory("");
+            }
+
             ControlFileLoaded = true;
+
+            return dearchivedScenes;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/OpenSim/Region/CoreModules/World/Archiver/ArchiveScenesGroup.cs b/OpenSim/Region/CoreModules/World/Archiver/ArchiveScenesGroup.cs
new file mode 100644
index 0000000..d8dace2
--- /dev/null
+++ b/OpenSim/Region/CoreModules/World/Archiver/ArchiveScenesGroup.cs
@@ -0,0 +1,176 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using OpenSim.Region.Framework.Scenes;
+using OpenMetaverse;
+using System.Drawing;
+
+namespace OpenSim.Region.CoreModules.World.Archiver
+{
+    /// <summary>
+    /// A group of regions arranged in a rectangle, possibly with holes.
+    /// </summary>
+    /// <remarks>
+    /// The regions usually (but not necessarily) belong to an archive file, in which case we
+    /// store additional information used to create the archive (e.g., each region's
+    /// directory within the archive).
+    /// </remarks>
+    public class ArchiveScenesGroup
+    {
+        /// <summary>
+        /// All the regions. The outer dictionary contains rows (key: Y coordinate).
+        /// The inner dictionaries contain each row's regions (key: X coordinate).
+        /// </summary>
+        public SortedDictionary<uint, SortedDictionary<uint, Scene>> Regions { get; set; }
+        
+        /// <summary>
+        /// The subdirectory where each region is stored in the archive.
+        /// </summary>
+        protected Dictionary<UUID, string> m_regionDirs;
+
+        /// <summary>
+        /// The grid coordinates of the regions' bounding box.
+        /// </summary>
+        public Rectangle Rect { get; set; }
+
+
+        public ArchiveScenesGroup()
+        {
+            Regions = new SortedDictionary<uint, SortedDictionary<uint, Scene>>();
+            m_regionDirs = new Dictionary<UUID, string>();
+            Rect = new Rectangle(0, 0, 0, 0);
+        }
+
+        public void AddScene(Scene scene)
+        {
+            uint x = scene.RegionInfo.RegionLocX;
+            uint y = scene.RegionInfo.RegionLocY;
+
+            SortedDictionary<uint, Scene> row;
+            if (!Regions.TryGetValue(y, out row))
+            {
+                row = new SortedDictionary<uint, Scene>();
+                Regions[y] = row;
+            }
+
+            row[x] = scene;
+        }
+
+        /// <summary>
+        /// Called after all the scenes have been added. Performs calculations that require
+        /// knowledge of all the scenes.
+        /// </summary>
+        public void CalcSceneLocations()
+        {
+            if (Regions.Count == 0)
+                return;
+
+            // Find the bounding rectangle
+
+            uint firstY = Regions.First().Key;
+            uint lastY = Regions.Last().Key;
+
+            uint? firstX = null;
+            uint? lastX = null;
+
+            foreach (SortedDictionary<uint, Scene> row in Regions.Values)
+            {
+                uint curFirstX = row.First().Key;
+                uint curLastX = row.Last().Key;
+
+                firstX = (firstX == null) ? curFirstX : (firstX < curFirstX) ? firstX : curFirstX;
+                lastX = (lastX == null) ? curLastX : (lastX > curLastX) ? lastX : curLastX;
+            }
+
+            Rect = new Rectangle((int)firstX, (int)firstY, (int)(lastX - firstX + 1), (int)(lastY - firstY + 1));
+
+
+            // Calculate the subdirectory in which each region will be stored in the archive
+
+            m_regionDirs.Clear();
+            ForEachScene(delegate(Scene scene)
+            {
+                // We add the region's coordinates to ensure uniqueness even if multiple regions have the same name
+                string path = string.Format("{0}_{1}_{2}",
+                    scene.RegionInfo.RegionLocX - Rect.X + 1,
+                    scene.RegionInfo.RegionLocY - Rect.Y + 1,
+                    scene.RegionInfo.RegionName.Replace(' ', '_'));
+                m_regionDirs[scene.RegionInfo.RegionID] = path;
+            });
+        }
+
+        /// <summary>
+        /// Returns the subdirectory where the region is stored.
+        /// </summary>
+        /// <param name="regionID"></param>
+        /// <returns></returns>
+        public string GetRegionDir(UUID regionID)
+        {
+            return m_regionDirs[regionID];
+        }
+
+        /// <summary>
+        /// Performs an action on all the scenes in this order: rows from South to North,
+        /// and within each row West to East.
+        /// </summary>
+        /// <param name="action"></param>
+        public void ForEachScene(Action<Scene> action)
+        {
+            foreach (SortedDictionary<uint, Scene> row in Regions.Values)
+            {
+                foreach (Scene scene in row.Values)
+                {
+                    action(scene);
+                }
+            }
+        }
+        
+        /// <summary>
+        /// Returns the scene at position 'location'.
+        /// </summary>
+        /// <param name="location">A location in the grid</param>
+        /// <param name="scene">The scene at this location</param>
+        /// <returns>Whether the scene was found</returns>
+        public bool TryGetScene(Point location, out Scene scene)
+        {
+            SortedDictionary<uint, Scene> row;
+            if (Regions.TryGetValue((uint)location.Y, out row))
+            {
+                if (row.TryGetValue((uint)location.X, out scene))
+                    return true;
+            }
+
+            scene = null;
+            return false;
+        }
+
+    }
+}
diff --git a/OpenSim/Region/CoreModules/World/Archiver/ArchiveWriteRequest.cs b/OpenSim/Region/CoreModules/World/Archiver/ArchiveWriteRequest.cs
new file mode 100644
index 0000000..d751b1c
--- /dev/null
+++ b/OpenSim/Region/CoreModules/World/Archiver/ArchiveWriteRequest.cs
@@ -0,0 +1,634 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.IO.Compression;
+using System.Reflection;
+using System.Text.RegularExpressions;
+using System.Threading;
+using System.Xml;
+using log4net;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Framework.Serialization;
+using OpenSim.Region.CoreModules.World.Terrain;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+using Ionic.Zlib;
+using GZipStream = Ionic.Zlib.GZipStream;
+using CompressionMode = Ionic.Zlib.CompressionMode;
+using OpenSim.Framework.Serialization.External;
+
+namespace OpenSim.Region.CoreModules.World.Archiver
+{
+    /// <summary>
+    /// Prepare to write out an archive.
+    /// </summary>
+    public class ArchiveWriteRequest
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        /// <summary>
+        /// The minimum major version of OAR that we can write.
+        /// </summary>
+        public static int MIN_MAJOR_VERSION = 0;       
+                
+        /// <summary>
+        /// The maximum major version of OAR that we can write.
+        /// </summary>
+        public static int MAX_MAJOR_VERSION = 1;
+
+        /// <summary>
+        /// Whether we're saving a multi-region archive.
+        /// </summary>
+        public bool MultiRegionFormat { get; set; }
+
+        /// <summary>
+        /// Determine whether this archive will save assets.  Default is true.
+        /// </summary>
+        public bool SaveAssets { get; set; }
+
+        /// <summary>
+        /// Determines which objects will be included in the archive, according to their permissions.
+        /// Default is null, meaning no permission checks.
+        /// </summary>
+        public string CheckPermissions { get; set; }
+
+        protected Scene m_rootScene;
+        protected Stream m_saveStream;
+        protected TarArchiveWriter m_archiveWriter;
+        protected Guid m_requestId;
+        protected Dictionary<string, object> m_options;
+
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="module">Calling module</param>
+        /// <param name="savePath">The path to which to save data.</param>
+        /// <param name="requestId">The id associated with this request</param>
+        /// <exception cref="System.IO.IOException">
+        /// If there was a problem opening a stream for the file specified by the savePath
+        /// </exception>
+        public ArchiveWriteRequest(Scene scene, string savePath, Guid requestId) : this(scene, requestId)
+        {
+            try
+            {
+                m_saveStream = new GZipStream(new FileStream(savePath, FileMode.Create), CompressionMode.Compress, CompressionLevel.BestCompression);
+            }
+            catch (EntryPointNotFoundException e)
+            {
+                m_log.ErrorFormat(
+                    "[ARCHIVER]: Mismatch between Mono and zlib1g library version when trying to create compression stream."
+                        + "If you've manually installed Mono, have you appropriately updated zlib1g as well?");
+                m_log.ErrorFormat("{0} {1}", e.Message, e.StackTrace);
+            }
+        }
+        
+        /// <summary>
+        /// Constructor.
+        /// </summary>
+        /// <param name="scene">The root scene to archive</param>
+        /// <param name="saveStream">The stream to which to save data.</param>
+        /// <param name="requestId">The id associated with this request</param>
+        public ArchiveWriteRequest(Scene scene, Stream saveStream, Guid requestId) : this(scene, requestId)
+        {
+            m_saveStream = saveStream;
+        }
+
+        protected ArchiveWriteRequest(Scene scene, Guid requestId)
+        {
+            m_rootScene = scene;
+            m_requestId = requestId;
+            m_archiveWriter = null;
+
+            MultiRegionFormat = false;
+            SaveAssets = true;
+            CheckPermissions = null;
+        }
+
+        /// <summary>
+        /// Archive the region requested.
+        /// </summary>
+        /// <exception cref="System.IO.IOException">if there was an io problem with creating the file</exception>
+        public void ArchiveRegion(Dictionary<string, object> options)
+        {
+            m_options = options;
+
+            if (options.ContainsKey("all") && (bool)options["all"])
+                MultiRegionFormat = true;
+
+            if (options.ContainsKey("noassets") && (bool)options["noassets"])
+                SaveAssets = false;
+
+            Object temp;
+            if (options.TryGetValue("checkPermissions", out temp))
+                CheckPermissions = (string)temp;
+
+
+            // Find the regions to archive
+            ArchiveScenesGroup scenesGroup = new ArchiveScenesGroup();
+            if (MultiRegionFormat)
+            {
+                m_log.InfoFormat("[ARCHIVER]: Saving {0} regions", SceneManager.Instance.Scenes.Count);
+                SceneManager.Instance.ForEachScene(delegate(Scene scene)
+                {
+                    scenesGroup.AddScene(scene);
+                });
+            }
+            else
+            {
+                scenesGroup.AddScene(m_rootScene);
+            }
+            scenesGroup.CalcSceneLocations();
+
+
+            m_archiveWriter = new TarArchiveWriter(m_saveStream);
+
+            try
+            {
+                // Write out control file. It should be first so that it will be found ASAP when loading the file.
+                m_archiveWriter.WriteFile(ArchiveConstants.CONTROL_FILE_PATH, CreateControlFile(scenesGroup));
+                m_log.InfoFormat("[ARCHIVER]: Added control file to archive.");
+
+                // Archive the regions
+
+                Dictionary<UUID, AssetType> assetUuids = new Dictionary<UUID, AssetType>();
+
+                scenesGroup.ForEachScene(delegate(Scene scene)
+                {
+                    string regionDir = MultiRegionFormat ? scenesGroup.GetRegionDir(scene.RegionInfo.RegionID) : "";
+                    ArchiveOneRegion(scene, regionDir, assetUuids);
+                });
+
+                // Archive the assets
+
+                if (SaveAssets)
+                {
+                    m_log.DebugFormat("[ARCHIVER]: Saving {0} assets", assetUuids.Count);
+
+                    // Asynchronously request all the assets required to perform this archive operation
+                    AssetsRequest ar
+                        = new AssetsRequest(
+                            new AssetsArchiver(m_archiveWriter), assetUuids,
+                            m_rootScene.AssetService, m_rootScene.UserAccountService,
+                            m_rootScene.RegionInfo.ScopeID, options, ReceivedAllAssets);
+
+                    Util.FireAndForget(o => ar.Execute());
+
+                    // CloseArchive() will be called from ReceivedAllAssets()
+                }
+                else
+                {
+                    m_log.DebugFormat("[ARCHIVER]: Not saving assets since --noassets was specified");
+                    CloseArchive(string.Empty);
+                }
+            }
+            catch (Exception e)
+            {
+                CloseArchive(e.Message);
+                throw;
+            }
+        }
+
+
+        private void ArchiveOneRegion(Scene scene, string regionDir, Dictionary<UUID, AssetType> assetUuids)
+        {
+            m_log.InfoFormat("[ARCHIVER]: Writing region {0}", scene.RegionInfo.RegionName);
+
+            EntityBase[] entities = scene.GetEntities();
+            List<SceneObjectGroup> sceneObjects = new List<SceneObjectGroup>();
+
+            int numObjectsSkippedPermissions = 0;
+         
+            // Filter entities so that we only have scene objects.
+            // FIXME: Would be nicer to have this as a proper list in SceneGraph, since lots of methods
+            // end up having to do this
+            IPermissionsModule permissionsModule = scene.RequestModuleInterface<IPermissionsModule>();
+            foreach (EntityBase entity in entities)
+            {
+                if (entity is SceneObjectGroup)
+                {
+                    SceneObjectGroup sceneObject = (SceneObjectGroup)entity;
+
+                    if (!sceneObject.IsDeleted && !sceneObject.IsAttachment)
+                    {
+                        if (!CanUserArchiveObject(scene.RegionInfo.EstateSettings.EstateOwner, sceneObject, CheckPermissions, permissionsModule))
+                        {
+                            // The user isn't allowed to copy/transfer this object, so it will not be included in the OAR.
+                            ++numObjectsSkippedPermissions;
+                        }
+                        else
+                        {
+                            sceneObjects.Add(sceneObject);
+                        }
+                    }
+                }
+            }
+
+            if (SaveAssets)
+            {
+                UuidGatherer assetGatherer = new UuidGatherer(scene.AssetService);
+                int prevAssets = assetUuids.Count;
+                    
+                foreach (SceneObjectGroup sceneObject in sceneObjects)
+                {
+                    assetGatherer.GatherAssetUuids(sceneObject, assetUuids);
+                }
+
+                m_log.DebugFormat(
+                    "[ARCHIVER]: {0} scene objects to serialize requiring save of {1} assets",
+                    sceneObjects.Count, assetUuids.Count - prevAssets);
+            }
+
+            if (numObjectsSkippedPermissions > 0)
+            {
+                m_log.DebugFormat(
+                    "[ARCHIVER]: {0} scene objects skipped due to lack of permissions",
+                    numObjectsSkippedPermissions);
+            }
+
+            // Make sure that we also request terrain texture assets
+            RegionSettings regionSettings = scene.RegionInfo.RegionSettings;
+    
+            if (regionSettings.TerrainTexture1 != RegionSettings.DEFAULT_TERRAIN_TEXTURE_1)
+                assetUuids[regionSettings.TerrainTexture1] = AssetType.Texture;
+                
+            if (regionSettings.TerrainTexture2 != RegionSettings.DEFAULT_TERRAIN_TEXTURE_2)
+                assetUuids[regionSettings.TerrainTexture2] = AssetType.Texture;
+                
+            if (regionSettings.TerrainTexture3 != RegionSettings.DEFAULT_TERRAIN_TEXTURE_3)
+                assetUuids[regionSettings.TerrainTexture3] = AssetType.Texture;
+                
+            if (regionSettings.TerrainTexture4 != RegionSettings.DEFAULT_TERRAIN_TEXTURE_4)
+                assetUuids[regionSettings.TerrainTexture4] = AssetType.Texture;
+
+            Save(scene, sceneObjects, regionDir);
+        }
+
+        /// <summary>
+        /// Checks whether the user has permission to export an object group to an OAR.
+        /// </summary>
+        /// <param name="user">The user</param>
+        /// <param name="objGroup">The object group</param>
+        /// <param name="checkPermissions">Which permissions to check: "C" = Copy, "T" = Transfer</param>
+        /// <param name="permissionsModule">The scene's permissions module</param>
+        /// <returns>Whether the user is allowed to export the object to an OAR</returns>
+        private bool CanUserArchiveObject(UUID user, SceneObjectGroup objGroup, string checkPermissions, IPermissionsModule permissionsModule)
+        {
+            if (checkPermissions == null)
+                return true;
+
+            if (permissionsModule == null)
+                return true;    // this shouldn't happen
+
+            // Check whether the user is permitted to export all of the parts in the SOG. If any
+            // part can't be exported then the entire SOG can't be exported.
+
+            bool permitted = true;
+            //int primNumber = 1;
+
+            foreach (SceneObjectPart obj in objGroup.Parts)
+            {
+                uint perm;
+                PermissionClass permissionClass = permissionsModule.GetPermissionClass(user, obj);
+                switch (permissionClass)
+                {
+                    case PermissionClass.Owner:
+                        perm = obj.BaseMask;
+                        break;
+                    case PermissionClass.Group:
+                        perm = obj.GroupMask | obj.EveryoneMask;
+                        break;
+                    case PermissionClass.Everyone:
+                    default:
+                        perm = obj.EveryoneMask;
+                        break;
+                }
+
+                bool canCopy = (perm & (uint)PermissionMask.Copy) != 0;
+                bool canTransfer = (perm & (uint)PermissionMask.Transfer) != 0;
+
+                // Special case: if Everyone can copy the object then this implies it can also be
+                // Transferred.
+                // However, if the user is the Owner then we don't check EveryoneMask, because it seems that the mask
+                // always (incorrectly) includes the Copy bit set in this case. But that's a mistake: the viewer
+                // does NOT show that the object has Everyone-Copy permissions, and doesn't allow it to be copied.
+                if (permissionClass != PermissionClass.Owner)
+                    canTransfer |= (obj.EveryoneMask & (uint)PermissionMask.Copy) != 0;
+
+                bool partPermitted = true;
+                if (checkPermissions.Contains("C") && !canCopy)
+                    partPermitted = false;
+                if (checkPermissions.Contains("T") && !canTransfer)
+                    partPermitted = false;
+
+                // If the user is the Creator of the object then it can always be included in the OAR
+                bool creator = (obj.CreatorID.Guid == user.Guid);
+                if (creator)
+                    partPermitted = true;
+
+                //string name = (objGroup.PrimCount == 1) ? objGroup.Name : string.Format("{0} ({1}/{2})", obj.Name, primNumber, objGroup.PrimCount);
+                //m_log.DebugFormat("[ARCHIVER]: Object permissions: {0}: Base={1:X4}, Owner={2:X4}, Everyone={3:X4}, permissionClass={4}, checkPermissions={5}, canCopy={6}, canTransfer={7}, creator={8}, permitted={9}",
+                //    name, obj.BaseMask, obj.OwnerMask, obj.EveryoneMask,
+                //    permissionClass, checkPermissions, canCopy, canTransfer, creator, partPermitted);
+
+                if (!partPermitted)
+                {
+                    permitted = false;
+                    break;
+                }
+
+                //++primNumber;
+            }
+
+            return permitted;
+        }
+
+        /// <summary>
+        /// Create the control file.
+        /// </summary>
+        /// <returns></returns>
+        public string CreateControlFile(ArchiveScenesGroup scenesGroup)
+        {
+            int majorVersion;
+            int minorVersion;
+
+            if (MultiRegionFormat)
+            {
+                majorVersion = MAX_MAJOR_VERSION;
+                minorVersion = 0;
+            }
+            else
+            {
+                // To support older versions of OpenSim, we continue to create single-region OARs
+                // using the old file format. In the future this format will be discontinued.
+                majorVersion = 0;
+                minorVersion = 8;
+            }
+//
+//            if (m_options.ContainsKey("version"))
+//            {
+//                string[] parts = m_options["version"].ToString().Split('.');
+//                if (parts.Length >= 1)
+//                {
+//                    majorVersion = Int32.Parse(parts[0]);                    
+//                                        
+//                    if (parts.Length >= 2)
+//                        minorVersion = Int32.Parse(parts[1]);
+//                }
+//            }
+//            
+//            if (majorVersion < MIN_MAJOR_VERSION || majorVersion > MAX_MAJOR_VERSION)
+//            {
+//                throw new Exception(
+//                    string.Format(
+//                        "OAR version number for save must be between {0} and {1}", 
+//                        MIN_MAJOR_VERSION, MAX_MAJOR_VERSION));
+//            }
+//            else if (majorVersion == MAX_MAJOR_VERSION)
+//            {
+//                // Force 1.0
+//                minorVersion = 0;
+//            }
+//            else if (majorVersion == MIN_MAJOR_VERSION)
+//            {
+//                // Force 0.4
+//                minorVersion = 4;                                        
+//            }
+            
+            m_log.InfoFormat("[ARCHIVER]: Creating version {0}.{1} OAR", majorVersion, minorVersion);
+            if (majorVersion == 1)
+            {
+                m_log.WarnFormat("[ARCHIVER]: Please be aware that version 1.0 OARs are not compatible with OpenSim versions prior to 0.7.4. Do not use the --all option if you want to produce a compatible OAR");
+            }
+
+            String s;
+            
+            using (StringWriter sw = new StringWriter())
+            {
+                using (XmlTextWriter xtw = new XmlTextWriter(sw))
+                {
+                    xtw.Formatting = Formatting.Indented;
+                    xtw.WriteStartDocument();
+                    xtw.WriteStartElement("archive");
+                    xtw.WriteAttributeString("major_version", majorVersion.ToString());
+                    xtw.WriteAttributeString("minor_version", minorVersion.ToString());
+        
+                    xtw.WriteStartElement("creation_info");
+                    DateTime now = DateTime.UtcNow;
+                    TimeSpan t = now - new DateTime(1970, 1, 1);
+                    xtw.WriteElementString("datetime", ((int)t.TotalSeconds).ToString());
+                    if (!MultiRegionFormat)
+                        xtw.WriteElementString("id", m_rootScene.RegionInfo.RegionID.ToString());
+                    xtw.WriteEndElement();
+        
+                    xtw.WriteElementString("assets_included", SaveAssets.ToString());
+
+                    if (MultiRegionFormat)
+                    {
+                        WriteRegionsManifest(scenesGroup, xtw);
+                    }
+                    else
+                    {
+                        xtw.WriteStartElement("region_info");
+                        WriteRegionInfo(m_rootScene, xtw);
+                        xtw.WriteEndElement();
+                    }
+
+                    xtw.WriteEndElement();
+        
+                    xtw.Flush();
+                }
+
+                s = sw.ToString();
+            }
+
+            return s;
+        }
+
+        /// <summary>
+        /// Writes the list of regions included in a multi-region OAR.
+        /// </summary>
+        private static void WriteRegionsManifest(ArchiveScenesGroup scenesGroup, XmlTextWriter xtw)
+        {
+            xtw.WriteStartElement("regions");
+
+            // Write the regions in order: rows from South to North, then regions from West to East.
+            // The list of regions can have "holes"; we write empty elements in their position.
+
+            for (uint y = (uint)scenesGroup.Rect.Top; y < scenesGroup.Rect.Bottom; ++y)
+            {
+                SortedDictionary<uint, Scene> row;
+                if (scenesGroup.Regions.TryGetValue(y, out row))
+                {
+                    xtw.WriteStartElement("row");
+
+                    for (uint x = (uint)scenesGroup.Rect.Left; x < scenesGroup.Rect.Right; ++x)
+                    {
+                        Scene scene;
+                        if (row.TryGetValue(x, out scene))
+                        {
+                            xtw.WriteStartElement("region");
+                            xtw.WriteElementString("id", scene.RegionInfo.RegionID.ToString());
+                            xtw.WriteElementString("dir", scenesGroup.GetRegionDir(scene.RegionInfo.RegionID));
+                            WriteRegionInfo(scene, xtw);
+                            xtw.WriteEndElement();
+                        }
+                        else
+                        {
+                            // Write a placeholder for a missing region
+                            xtw.WriteElementString("region", "");
+                        }
+                    }
+
+                    xtw.WriteEndElement();
+                }
+                else
+                {
+                    // Write a placeholder for a missing row
+                    xtw.WriteElementString("row", "");
+                }
+            }
+
+            xtw.WriteEndElement();  // "regions"
+        }
+
+        protected static void WriteRegionInfo(Scene scene, XmlTextWriter xtw)
+        {
+            bool isMegaregion;
+            Vector2 size;
+
+            IRegionCombinerModule rcMod = scene.RequestModuleInterface<IRegionCombinerModule>();
+
+            if (rcMod != null)
+                isMegaregion = rcMod.IsRootForMegaregion(scene.RegionInfo.RegionID);
+            else
+                isMegaregion = false;
+    
+            if (isMegaregion)
+                size = rcMod.GetSizeOfMegaregion(scene.RegionInfo.RegionID);
+            else
+                size = new Vector2((float)Constants.RegionSize, (float)Constants.RegionSize);
+    
+            xtw.WriteElementString("is_megaregion", isMegaregion.ToString());
+            xtw.WriteElementString("size_in_meters", string.Format("{0},{1}", size.X, size.Y));
+        }
+
+
+        protected void Save(Scene scene, List<SceneObjectGroup> sceneObjects, string regionDir)
+        {
+            if (regionDir != string.Empty)
+                regionDir = ArchiveConstants.REGIONS_PATH + regionDir + "/";
+
+            m_log.InfoFormat("[ARCHIVER]: Adding region settings to archive.");
+
+            // Write out region settings
+            string settingsPath = String.Format("{0}{1}{2}.xml",
+                regionDir, ArchiveConstants.SETTINGS_PATH, scene.RegionInfo.RegionName);
+            m_archiveWriter.WriteFile(settingsPath, RegionSettingsSerializer.Serialize(scene.RegionInfo.RegionSettings));
+
+            m_log.InfoFormat("[ARCHIVER]: Adding parcel settings to archive.");
+
+            // Write out land data (aka parcel) settings
+            List<ILandObject> landObjects = scene.LandChannel.AllParcels();
+            foreach (ILandObject lo in landObjects)
+            {
+                LandData landData = lo.LandData;
+                string landDataPath = String.Format("{0}{1}{2}.xml",
+                    regionDir, ArchiveConstants.LANDDATA_PATH, landData.GlobalID.ToString());
+                m_archiveWriter.WriteFile(landDataPath, LandDataSerializer.Serialize(landData, m_options));
+            }
+
+            m_log.InfoFormat("[ARCHIVER]: Adding terrain information to archive.");
+
+            // Write out terrain
+            string terrainPath = String.Format("{0}{1}{2}.r32",
+                regionDir, ArchiveConstants.TERRAINS_PATH, scene.RegionInfo.RegionName);
+
+            MemoryStream ms = new MemoryStream();
+            scene.RequestModuleInterface<ITerrainModule>().SaveToStream(terrainPath, ms);
+            m_archiveWriter.WriteFile(terrainPath, ms.ToArray());
+            ms.Close();
+
+            m_log.InfoFormat("[ARCHIVER]: Adding scene objects to archive.");
+
+            // Write out scene object metadata
+            IRegionSerialiserModule serializer = scene.RequestModuleInterface<IRegionSerialiserModule>();
+            foreach (SceneObjectGroup sceneObject in sceneObjects)
+            {
+                //m_log.DebugFormat("[ARCHIVER]: Saving {0} {1}, {2}", entity.Name, entity.UUID, entity.GetType());
+
+                string serializedObject = serializer.SerializeGroupToXml2(sceneObject, m_options);
+                string objectPath = string.Format("{0}{1}", regionDir, ArchiveHelpers.CreateObjectPath(sceneObject));
+                m_archiveWriter.WriteFile(objectPath, serializedObject);
+            }
+        }
+        
+        protected void ReceivedAllAssets(
+            ICollection<UUID> assetsFoundUuids, ICollection<UUID> assetsNotFoundUuids)
+        {
+            foreach (UUID uuid in assetsNotFoundUuids)
+            {
+                m_log.DebugFormat("[ARCHIVER]: Could not find asset {0}", uuid);
+            }
+
+            //            m_log.InfoFormat(
+            //                "[ARCHIVER]: Received {0} of {1} assets requested",
+            //                assetsFoundUuids.Count, assetsFoundUuids.Count + assetsNotFoundUuids.Count);
+
+            CloseArchive(String.Empty);
+        }
+
+        
+        /// <summary>
+        /// Closes the archive and notifies that we're done.
+        /// </summary>
+        /// <param name="errorMessage">The error that occurred, or empty for success</param>
+        protected void CloseArchive(string errorMessage)
+        {
+            try
+            {
+                if (m_archiveWriter != null)
+                    m_archiveWriter.Close();
+                m_saveStream.Close();
+            }
+            catch (Exception e)
+            {
+                m_log.Error(string.Format("[ARCHIVER]: Error closing archive: {0} ", e.Message), e);
+                if (errorMessage == string.Empty)
+                    errorMessage = e.Message;
+            }
+            
+            m_log.InfoFormat("[ARCHIVER]: Finished writing out OAR for {0}", m_rootScene.RegionInfo.RegionName);
+
+            m_rootScene.EventManager.TriggerOarFileSaved(m_requestId, errorMessage);
+        }
+
+    }
+}
diff --git a/OpenSim/Region/CoreModules/World/Archiver/ArchiveWriteRequestExecution.cs b/OpenSim/Region/CoreModules/World/Archiver/ArchiveWriteRequestExecution.cs
deleted file mode 100644
index 0780d86..0000000
--- a/OpenSim/Region/CoreModules/World/Archiver/ArchiveWriteRequestExecution.cs
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * Copyright (c) Contributors, http://opensimulator.org/
- * See CONTRIBUTORS.TXT for a full list of copyright holders.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *     * Neither the name of the OpenSimulator Project nor the
- *       names of its contributors may be used to endorse or promote products
- *       derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Reflection;
-using System.Xml;
-using log4net;
-using OpenMetaverse;
-using OpenSim.Framework;
-using OpenSim.Framework.Serialization;
-using OpenSim.Framework.Serialization.External;
-using OpenSim.Region.CoreModules.World.Terrain;
-using OpenSim.Region.Framework.Interfaces;
-using OpenSim.Region.Framework.Scenes;
-
-namespace OpenSim.Region.CoreModules.World.Archiver
-{
-    /// <summary>
-    /// Method called when all the necessary assets for an archive request have been received.
-    /// </summary>
-    public delegate void AssetsRequestCallback(
-        ICollection<UUID> assetsFoundUuids, ICollection<UUID> assetsNotFoundUuids);
-
-    /// <summary>
-    /// Execute the write of an archive once we have received all the necessary data
-    /// </summary>
-    public class ArchiveWriteRequestExecution
-    {
-        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
-
-        protected ITerrainModule m_terrainModule;
-        protected IRegionSerialiserModule m_serialiser;
-        protected List<SceneObjectGroup> m_sceneObjects;
-        protected Scene m_scene;
-        protected TarArchiveWriter m_archiveWriter;
-        protected Guid m_requestId;
-        protected Dictionary<string, object> m_options;
-
-        public ArchiveWriteRequestExecution(
-             List<SceneObjectGroup> sceneObjects,
-             ITerrainModule terrainModule,
-             IRegionSerialiserModule serialiser,
-             Scene scene,
-             TarArchiveWriter archiveWriter,
-             Guid requestId,
-             Dictionary<string, object> options)
-        {
-            m_sceneObjects = sceneObjects;
-            m_terrainModule = terrainModule;
-            m_serialiser = serialiser;
-            m_scene = scene;
-            m_archiveWriter = archiveWriter;
-            m_requestId = requestId;
-            m_options = options;
-        }
-
-        protected internal void ReceivedAllAssets(
-            ICollection<UUID> assetsFoundUuids, ICollection<UUID> assetsNotFoundUuids)
-        {
-            try
-            {
-                Save(assetsFoundUuids, assetsNotFoundUuids);
-            }
-            finally
-            {
-                m_archiveWriter.Close();
-            }
-            
-            m_log.InfoFormat("[ARCHIVER]: Finished writing out OAR for {0}", m_scene.RegionInfo.RegionName);
-
-            m_scene.EventManager.TriggerOarFileSaved(m_requestId, String.Empty);
-        }
-
-        protected internal void Save(ICollection<UUID> assetsFoundUuids, ICollection<UUID> assetsNotFoundUuids)
-        {
-            foreach (UUID uuid in assetsNotFoundUuids)
-            {
-                m_log.DebugFormat("[ARCHIVER]: Could not find asset {0}", uuid);
-            }
-
-//            m_log.InfoFormat(
-//                "[ARCHIVER]: Received {0} of {1} assets requested",
-//                assetsFoundUuids.Count, assetsFoundUuids.Count + assetsNotFoundUuids.Count);
-
-            m_log.InfoFormat("[ARCHIVER]: Adding region settings to archive.");
-
-            // Write out region settings
-            string settingsPath
-                = String.Format("{0}{1}.xml", ArchiveConstants.SETTINGS_PATH, m_scene.RegionInfo.RegionName);
-            m_archiveWriter.WriteFile(settingsPath, RegionSettingsSerializer.Serialize(m_scene.RegionInfo.RegionSettings));
-
-            m_log.InfoFormat("[ARCHIVER]: Adding parcel settings to archive.");
-
-            // Write out land data (aka parcel) settings
-            List<ILandObject>landObjects = m_scene.LandChannel.AllParcels();
-            foreach (ILandObject lo in landObjects)
-            {
-                LandData landData = lo.LandData;
-                string landDataPath = String.Format("{0}{1}.xml", ArchiveConstants.LANDDATA_PATH, 
-                                                    landData.GlobalID.ToString());
-                m_archiveWriter.WriteFile(landDataPath, LandDataSerializer.Serialize(landData, m_options));
-            }
-
-            m_log.InfoFormat("[ARCHIVER]: Adding terrain information to archive.");
-
-            // Write out terrain
-            string terrainPath
-                = String.Format("{0}{1}.r32", ArchiveConstants.TERRAINS_PATH, m_scene.RegionInfo.RegionName);
-
-            MemoryStream ms = new MemoryStream();
-            m_terrainModule.SaveToStream(terrainPath, ms);
-            m_archiveWriter.WriteFile(terrainPath, ms.ToArray());
-            ms.Close();
-
-            m_log.InfoFormat("[ARCHIVER]: Adding scene objects to archive.");
-           
-            // Write out scene object metadata
-            foreach (SceneObjectGroup sceneObject in m_sceneObjects)
-            {
-                //m_log.DebugFormat("[ARCHIVER]: Saving {0} {1}, {2}", entity.Name, entity.UUID, entity.GetType());
-
-                string serializedObject = m_serialiser.SerializeGroupToXml2(sceneObject, m_options);                
-                m_archiveWriter.WriteFile(ArchiveHelpers.CreateObjectPath(sceneObject), serializedObject);
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/OpenSim/Region/CoreModules/World/Archiver/ArchiveWriteRequestPreparation.cs b/OpenSim/Region/CoreModules/World/Archiver/ArchiveWriteRequestPreparation.cs
deleted file mode 100644
index 4edaaca..0000000
--- a/OpenSim/Region/CoreModules/World/Archiver/ArchiveWriteRequestPreparation.cs
+++ /dev/null
@@ -1,438 +0,0 @@
-/*
- * Copyright (c) Contributors, http://opensimulator.org/
- * See CONTRIBUTORS.TXT for a full list of copyright holders.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *     * Neither the name of the OpenSimulator Project nor the
- *       names of its contributors may be used to endorse or promote products
- *       derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.IO.Compression;
-using System.Reflection;
-using System.Text.RegularExpressions;
-using System.Threading;
-using System.Xml;
-using log4net;
-using OpenMetaverse;
-using OpenSim.Framework;
-using OpenSim.Framework.Serialization;
-using OpenSim.Region.CoreModules.World.Terrain;
-using OpenSim.Region.Framework.Interfaces;
-using OpenSim.Region.Framework.Scenes;
-using Ionic.Zlib;
-using GZipStream = Ionic.Zlib.GZipStream;
-using CompressionMode = Ionic.Zlib.CompressionMode;
-
-namespace OpenSim.Region.CoreModules.World.Archiver
-{
-    /// <summary>
-    /// Prepare to write out an archive.
-    /// </summary>
-    public class ArchiveWriteRequestPreparation
-    {
-        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
-
-        /// <summary>
-        /// The minimum major version of OAR that we can write.
-        /// </summary>
-        public static int MIN_MAJOR_VERSION = 0;       
-                
-        /// <summary>
-        /// The maximum major version of OAR that we can write.
-        /// </summary>
-        public static int MAX_MAJOR_VERSION = 0;
-
-        /// <summary>
-        /// Determine whether this archive will save assets.  Default is true.
-        /// </summary>
-        public bool SaveAssets { get; set; }
-
-        protected ArchiverModule m_module;
-        protected Scene m_scene;
-        protected Stream m_saveStream;
-        protected Guid m_requestId;
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="module">Calling module</param>
-        /// <param name="savePath">The path to which to save data.</param>
-        /// <param name="requestId">The id associated with this request</param>
-        /// <exception cref="System.IO.IOException">
-        /// If there was a problem opening a stream for the file specified by the savePath
-        /// </exception>
-        public ArchiveWriteRequestPreparation(ArchiverModule module, string savePath, Guid requestId) : this(module, requestId)
-        {
-            try
-            {
-                m_saveStream = new GZipStream(new FileStream(savePath, FileMode.Create), CompressionMode.Compress, CompressionLevel.BestCompression);
-            }
-            catch (EntryPointNotFoundException e)
-            {
-                m_log.ErrorFormat(
-                    "[ARCHIVER]: Mismatch between Mono and zlib1g library version when trying to create compression stream."
-                        + "If you've manually installed Mono, have you appropriately updated zlib1g as well?");
-                m_log.ErrorFormat("{0} {1}", e.Message, e.StackTrace);
-            }
-        }
-        
-        /// <summary>
-        /// Constructor.
-        /// </summary>
-        /// <param name="module">Calling module</param>
-        /// <param name="saveStream">The stream to which to save data.</param>
-        /// <param name="requestId">The id associated with this request</param>
-        public ArchiveWriteRequestPreparation(ArchiverModule module, Stream saveStream, Guid requestId) : this(module, requestId)
-        {
-            m_saveStream = saveStream;
-        }
-
-        protected ArchiveWriteRequestPreparation(ArchiverModule module, Guid requestId)
-        {
-            m_module = module;
-
-            // FIXME: This is only here for regression test purposes since they do not supply a module.  Need to fix
-            // this.
-            if (m_module != null)
-                m_scene = m_module.Scene;
-
-            m_requestId = requestId;
-
-            SaveAssets = true;
-        }
-
-        /// <summary>
-        /// Archive the region requested.
-        /// </summary>
-        /// <exception cref="System.IO.IOException">if there was an io problem with creating the file</exception>
-        public void ArchiveRegion(Dictionary<string, object> options)
-        {
-            if (options.ContainsKey("noassets") && (bool)options["noassets"])
-                SaveAssets = false;
-
-            try
-            {
-                Dictionary<UUID, AssetType> assetUuids = new Dictionary<UUID, AssetType>();
-    
-                EntityBase[] entities = m_scene.GetEntities();
-                List<SceneObjectGroup> sceneObjects = new List<SceneObjectGroup>();
-
-                string checkPermissions = null;
-                int numObjectsSkippedPermissions = 0;
-                Object temp;
-                if (options.TryGetValue("checkPermissions", out temp))
-                    checkPermissions = (string)temp;
-         
-                // Filter entities so that we only have scene objects.
-                // FIXME: Would be nicer to have this as a proper list in SceneGraph, since lots of methods
-                // end up having to do this
-                foreach (EntityBase entity in entities)
-                {
-                    if (entity is SceneObjectGroup)
-                    {
-                        SceneObjectGroup sceneObject = (SceneObjectGroup)entity;
-
-                        if (!sceneObject.IsDeleted && !sceneObject.IsAttachment)
-                        {
-                            if (!CanUserArchiveObject(m_scene.RegionInfo.EstateSettings.EstateOwner, sceneObject, checkPermissions))
-                            {
-                                // The user isn't allowed to copy/transfer this object, so it will not be included in the OAR.
-                                ++numObjectsSkippedPermissions;
-                            }
-                            else
-                            {
-                                sceneObjects.Add(sceneObject);
-                            }
-                        }
-                    }
-                }
-
-                if (SaveAssets)
-                {
-                    UuidGatherer assetGatherer = new UuidGatherer(m_scene.AssetService);
-
-                    foreach (SceneObjectGroup sceneObject in sceneObjects)
-                    {
-                        assetGatherer.GatherAssetUuids(sceneObject, assetUuids);
-                    }
-
-                    m_log.DebugFormat(
-                        "[ARCHIVER]: {0} scene objects to serialize requiring save of {1} assets",
-                        sceneObjects.Count, assetUuids.Count);
-                }
-                else
-                {
-                    m_log.DebugFormat("[ARCHIVER]: Not saving assets since --noassets was specified");
-                }
-
-                if (numObjectsSkippedPermissions > 0)
-                {
-                    m_log.DebugFormat(
-                        "[ARCHIVER]: {0} scene objects skipped due to lack of permissions",
-                        numObjectsSkippedPermissions);
-                }
-
-                // Make sure that we also request terrain texture assets
-                RegionSettings regionSettings = m_scene.RegionInfo.RegionSettings;
-    
-                if (regionSettings.TerrainTexture1 != RegionSettings.DEFAULT_TERRAIN_TEXTURE_1)
-                    assetUuids[regionSettings.TerrainTexture1] = AssetType.Texture;
-                
-                if (regionSettings.TerrainTexture2 != RegionSettings.DEFAULT_TERRAIN_TEXTURE_2)
-                    assetUuids[regionSettings.TerrainTexture2] = AssetType.Texture;
-                
-                if (regionSettings.TerrainTexture3 != RegionSettings.DEFAULT_TERRAIN_TEXTURE_3)
-                    assetUuids[regionSettings.TerrainTexture3] = AssetType.Texture;
-                
-                if (regionSettings.TerrainTexture4 != RegionSettings.DEFAULT_TERRAIN_TEXTURE_4)
-                    assetUuids[regionSettings.TerrainTexture4] = AssetType.Texture;
-    
-                TarArchiveWriter archiveWriter = new TarArchiveWriter(m_saveStream);
-                
-                // Asynchronously request all the assets required to perform this archive operation
-                ArchiveWriteRequestExecution awre
-                    = new ArchiveWriteRequestExecution(
-                        sceneObjects,
-                        m_scene.RequestModuleInterface<ITerrainModule>(),
-                        m_scene.RequestModuleInterface<IRegionSerialiserModule>(),
-                        m_scene,
-                        archiveWriter,
-                        m_requestId,
-                        options);
-    
-                m_log.InfoFormat("[ARCHIVER]: Creating archive file.  This may take some time.");
-    
-                // Write out control file.  This has to be done first so that subsequent loaders will see this file first
-                // XXX: I know this is a weak way of doing it since external non-OAR aware tar executables will not do this
-                archiveWriter.WriteFile(ArchiveConstants.CONTROL_FILE_PATH, CreateControlFile(options));
-                m_log.InfoFormat("[ARCHIVER]: Added control file to archive.");
-
-                if (SaveAssets)
-                {
-                    AssetsRequest ar
-                        = new AssetsRequest(
-                            new AssetsArchiver(archiveWriter), assetUuids,
-                            m_scene.AssetService, m_scene.UserAccountService, 
-                            m_scene.RegionInfo.ScopeID, options, awre.ReceivedAllAssets);
-
-                    Util.FireAndForget(o => ar.Execute());
-                }
-                else
-                {
-                    awre.ReceivedAllAssets(new List<UUID>(), new List<UUID>());
-                }
-            }
-            catch (Exception) 
-            {
-                m_saveStream.Close();
-                throw;
-            }    
-        }
-
-        /// <summary>
-        /// Checks whether the user has permission to export an object group to an OAR.
-        /// </summary>
-        /// <param name="user">The user</param>
-        /// <param name="objGroup">The object group</param>
-        /// <param name="checkPermissions">Which permissions to check: "C" = Copy, "T" = Transfer</param>
-        /// <returns>Whether the user is allowed to export the object to an OAR</returns>
-        private bool CanUserArchiveObject(UUID user, SceneObjectGroup objGroup, string checkPermissions)
-        {
-            if (checkPermissions == null)
-                return true;
-
-            IPermissionsModule module = m_scene.RequestModuleInterface<IPermissionsModule>();
-            if (module == null)
-                return true;    // this shouldn't happen
-
-            // Check whether the user is permitted to export all of the parts in the SOG. If any
-            // part can't be exported then the entire SOG can't be exported.
-
-            bool permitted = true;
-            //int primNumber = 1;
-
-            foreach (SceneObjectPart obj in objGroup.Parts)
-            {
-                uint perm;
-                PermissionClass permissionClass = module.GetPermissionClass(user, obj);
-                switch (permissionClass)
-                {
-                    case PermissionClass.Owner:
-                        perm = obj.BaseMask;
-                        break;
-                    case PermissionClass.Group:
-                        perm = obj.GroupMask | obj.EveryoneMask;
-                        break;
-                    case PermissionClass.Everyone:
-                    default:
-                        perm = obj.EveryoneMask;
-                        break;
-                }
-
-                bool canCopy = (perm & (uint)PermissionMask.Copy) != 0;
-                bool canTransfer = (perm & (uint)PermissionMask.Transfer) != 0;
-
-                // Special case: if Everyone can copy the object then this implies it can also be
-                // Transferred.
-                // However, if the user is the Owner then we don't check EveryoneMask, because it seems that the mask
-                // always (incorrectly) includes the Copy bit set in this case. But that's a mistake: the viewer
-                // does NOT show that the object has Everyone-Copy permissions, and doesn't allow it to be copied.
-                if (permissionClass != PermissionClass.Owner)
-                    canTransfer |= (obj.EveryoneMask & (uint)PermissionMask.Copy) != 0;
-
-                bool partPermitted = true;
-                if (checkPermissions.Contains("C") && !canCopy)
-                    partPermitted = false;
-                if (checkPermissions.Contains("T") && !canTransfer)
-                    partPermitted = false;
-
-                // If the user is the Creator of the object then it can always be included in the OAR
-                bool creator = (obj.CreatorID.Guid == user.Guid);
-                if (creator)
-                    partPermitted = true;
-
-                //string name = (objGroup.PrimCount == 1) ? objGroup.Name : string.Format("{0} ({1}/{2})", obj.Name, primNumber, objGroup.PrimCount);
-                //m_log.DebugFormat("[ARCHIVER]: Object permissions: {0}: Base={1:X4}, Owner={2:X4}, Everyone={3:X4}, permissionClass={4}, checkPermissions={5}, canCopy={6}, canTransfer={7}, creator={8}, permitted={9}",
-                //    name, obj.BaseMask, obj.OwnerMask, obj.EveryoneMask,
-                //    permissionClass, checkPermissions, canCopy, canTransfer, creator, partPermitted);
-
-                if (!partPermitted)
-                {
-                    permitted = false;
-                    break;
-                }
-
-                //++primNumber;
-            }
-
-            return permitted;
-        }
-
-        /// <summary>
-        /// Create the control file for the most up to date archive
-        /// </summary>
-        /// <returns></returns>
-        public string CreateControlFile(Dictionary<string, object> options)
-        {
-            int majorVersion = MAX_MAJOR_VERSION, minorVersion = 8;
-//
-//            if (options.ContainsKey("version"))
-//            {
-//                string[] parts = options["version"].ToString().Split('.');
-//                if (parts.Length >= 1)
-//                {
-//                    majorVersion = Int32.Parse(parts[0]);                    
-//                                        
-//                    if (parts.Length >= 2)
-//                        minorVersion = Int32.Parse(parts[1]);
-//                }
-//            }
-//            
-//            if (majorVersion < MIN_MAJOR_VERSION || majorVersion > MAX_MAJOR_VERSION)
-//            {
-//                throw new Exception(
-//                    string.Format(
-//                        "OAR version number for save must be between {0} and {1}", 
-//                        MIN_MAJOR_VERSION, MAX_MAJOR_VERSION));
-//            }
-//            else if (majorVersion == MAX_MAJOR_VERSION)
-//            {
-//                // Force 1.0
-//                minorVersion = 0;
-//            }
-//            else if (majorVersion == MIN_MAJOR_VERSION)
-//            {
-//                // Force 0.4
-//                minorVersion = 4;                                        
-//            }
-            
-            m_log.InfoFormat("[ARCHIVER]: Creating version {0}.{1} OAR", majorVersion, minorVersion);
-            //if (majorVersion == 1)
-            //{
-            //    m_log.WarnFormat("[ARCHIVER]: Please be aware that version 1.0 OARs are not compatible with OpenSim 0.7.0.2 and earlier.  Please use the --version=0 option if you want to produce a compatible OAR");
-            //}
-
-            String s;
-            
-            using (StringWriter sw = new StringWriter())
-            {
-                using (XmlTextWriter xtw = new XmlTextWriter(sw))
-                {
-                    xtw.Formatting = Formatting.Indented;
-                    xtw.WriteStartDocument();
-                    xtw.WriteStartElement("archive");
-                    xtw.WriteAttributeString("major_version", majorVersion.ToString());
-                    xtw.WriteAttributeString("minor_version", minorVersion.ToString());
-        
-                    xtw.WriteStartElement("creation_info");
-                    DateTime now = DateTime.UtcNow;
-                    TimeSpan t = now - new DateTime(1970, 1, 1);
-                    xtw.WriteElementString("datetime", ((int)t.TotalSeconds).ToString());
-                    xtw.WriteElementString("id", UUID.Random().ToString());
-                    xtw.WriteEndElement();
-
-                    xtw.WriteStartElement("region_info");
-
-                    bool isMegaregion;
-                    Vector2 size;
-                    IRegionCombinerModule rcMod = null;
-
-                    // FIXME: This is only here for regression test purposes since they do not supply a module.  Need to fix
-                    // this, possibly by doing control file creation somewhere else.
-                    if (m_module != null)
-                        rcMod = m_module.RegionCombinerModule;
-
-                    if (rcMod != null)
-                        isMegaregion = rcMod.IsRootForMegaregion(m_scene.RegionInfo.RegionID);
-                    else
-                        isMegaregion = false;
-
-                    if (isMegaregion)
-                        size = rcMod.GetSizeOfMegaregion(m_scene.RegionInfo.RegionID);
-                    else
-                        size = new Vector2((float)Constants.RegionSize, (float)Constants.RegionSize);
-
-                    xtw.WriteElementString("is_megaregion", isMegaregion.ToString());
-                    xtw.WriteElementString("size_in_meters", string.Format("{0},{1}", size.X, size.Y));
-
-                    xtw.WriteEndElement();
-        
-                    xtw.WriteElementString("assets_included", SaveAssets.ToString());
-
-                    xtw.WriteEndElement();
-        
-                    xtw.Flush();
-                }
-
-                s = sw.ToString();
-            }
-
-//            if (m_scene != null)
-//                Console.WriteLine(
-//                    "[ARCHIVE WRITE REQUEST PREPARATION]: Control file for {0} is: {1}", m_scene.RegionInfo.RegionName, s);
-
-            return s;
-        }
-    }
-}
diff --git a/OpenSim/Region/CoreModules/World/Archiver/ArchiverModule.cs b/OpenSim/Region/CoreModules/World/Archiver/ArchiverModule.cs
index bf3b124..abf3713 100644
--- a/OpenSim/Region/CoreModules/World/Archiver/ArchiverModule.cs
+++ b/OpenSim/Region/CoreModules/World/Archiver/ArchiverModule.cs
@@ -32,6 +32,8 @@ using System.Reflection;
 using log4net;
 using NDesk.Options;
 using Nini.Config;
+using OpenSim.Framework;
+using OpenSim.Framework.Console;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
 
@@ -117,7 +119,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver
 //
 //            foreach (string param in mainParams)
 //                m_log.DebugFormat("GOT PARAM [{0}]", param);
-            
+
             if (mainParams.Count > 2)
             {
                 DearchiveRegion(mainParams[2], mergeOar, skipAssets, Guid.Empty);
@@ -146,17 +148,22 @@ namespace OpenSim.Region.CoreModules.World.Archiver
             ops.Add("noassets", delegate(string v) { options["noassets"] = v != null; });
             ops.Add("publish", v => options["wipe-owners"] = v != null);
             ops.Add("perm=", delegate(string v) { options["checkPermissions"] = v; });
+            ops.Add("all", delegate(string v) { options["all"] = v != null; });
 
             List<string> mainParams = ops.Parse(cmdparams);
 
+            string path;
             if (mainParams.Count > 2)
-            {
-                ArchiveRegion(mainParams[2], options);
-            }
+                path = mainParams[2];
             else
-            {
-                ArchiveRegion(DEFAULT_OAR_BACKUP_FILENAME, options);
-            }
+                path = DEFAULT_OAR_BACKUP_FILENAME;
+
+            // Not doing this right now as this causes some problems with auto-backup systems.  Maybe a force flag is
+            // needed
+//            if (!ConsoleUtil.CheckFileDoesNotExist(MainConsole.Instance, path))
+//                return;
+
+            ArchiveRegion(path, options);
         }
         
         public void ArchiveRegion(string savePath, Dictionary<string, object> options)
@@ -169,7 +176,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver
             m_log.InfoFormat(
                 "[ARCHIVER]: Writing archive for region {0} to {1}", Scene.RegionInfo.RegionName, savePath);
             
-            new ArchiveWriteRequestPreparation(this, savePath, requestId).ArchiveRegion(options);
+            new ArchiveWriteRequest(Scene, savePath, requestId).ArchiveRegion(options);
         }
 
         public void ArchiveRegion(Stream saveStream)
@@ -184,7 +191,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver
 
         public void ArchiveRegion(Stream saveStream, Guid requestId, Dictionary<string, object> options)
         {
-            new ArchiveWriteRequestPreparation(this, saveStream, requestId).ArchiveRegion(options);
+            new ArchiveWriteRequest(Scene, saveStream, requestId).ArchiveRegion(options);
         }
 
         public void DearchiveRegion(string loadPath)
diff --git a/OpenSim/Region/CoreModules/World/Archiver/AssetsRequest.cs b/OpenSim/Region/CoreModules/World/Archiver/AssetsRequest.cs
index 89e9593..e2f8833 100644
--- a/OpenSim/Region/CoreModules/World/Archiver/AssetsRequest.cs
+++ b/OpenSim/Region/CoreModules/World/Archiver/AssetsRequest.cs
@@ -46,6 +46,12 @@ namespace OpenSim.Region.CoreModules.World.Archiver
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
+        /// <summary>
+        /// Method called when all the necessary assets for an archive request have been received.
+        /// </summary>
+        public delegate void AssetsRequestCallback(
+            ICollection<UUID> assetsFoundUuids, ICollection<UUID> assetsNotFoundUuids);
+
         enum RequestState
         {
             Initial,
@@ -123,6 +129,10 @@ namespace OpenSim.Region.CoreModules.World.Archiver
             m_options = options;
             m_repliesRequired = uuids.Count;
 
+            // FIXME: This is a really poor way of handling the timeout since it will always leave the original requesting thread
+            // hanging.  Need to restructure so an original request thread waits for a ManualResetEvent on asset received
+            // so we can properly abort that thread.  Or request all assets synchronously, though that would be a more
+            // radical change
             m_requestCallbackTimer = new System.Timers.Timer(TIMEOUT);
             m_requestCallbackTimer.AutoReset = false;
             m_requestCallbackTimer.Elapsed += new ElapsedEventHandler(OnRequestCallbackTimeout);
diff --git a/OpenSim/Region/CoreModules/World/Archiver/DearchiveScenesGroup.cs b/OpenSim/Region/CoreModules/World/Archiver/DearchiveScenesGroup.cs
new file mode 100644
index 0000000..3dcc020
--- /dev/null
+++ b/OpenSim/Region/CoreModules/World/Archiver/DearchiveScenesGroup.cs
@@ -0,0 +1,232 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using OpenSim.Region.Framework.Scenes;
+using OpenMetaverse;
+using System.Drawing;
+using log4net;
+using System.Reflection;
+using OpenSim.Framework.Serialization;
+
+namespace OpenSim.Region.CoreModules.World.Archiver
+{
+    /// <summary>
+    /// The regions included in an OAR file.
+    /// </summary>
+    public class DearchiveScenesInfo
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        /// <summary>
+        /// One region in the archive.
+        /// </summary>
+        public class RegionInfo
+        {
+            /// <summary>
+            /// The subdirectory in which the region is stored.
+            /// </summary>
+            public string Directory { get; set; }
+
+            /// <summary>
+            /// The region's coordinates (relative to the South-West corner of the block).
+            /// </summary>
+            public Point Location { get; set; }
+
+            /// <summary>
+            /// The UUID of the original scene from which this archived region was saved.
+            /// </summary>
+            public string OriginalID { get; set; }
+
+            /// <summary>
+            /// The scene in the current simulator into which this region is loaded.
+            /// If null then the region doesn't have a corresponding scene, and it won't be loaded.
+            /// </summary>
+            public Scene Scene { get; set; }
+        }
+
+        /// <summary>
+        /// Whether this archive uses the multi-region format.
+        /// </summary>
+        public Boolean MultiRegionFormat { get; set; }
+
+        /// <summary>
+        /// Maps (Region directory -> region)
+        /// </summary>
+        protected Dictionary<string, RegionInfo> m_directory2region = new Dictionary<string, RegionInfo>();
+
+        /// <summary>
+        /// Maps (UUID of the scene in the simulator where the region will be loaded -> region)
+        /// </summary>
+        protected Dictionary<UUID, RegionInfo> m_newId2region = new Dictionary<UUID, RegionInfo>();
+
+        public int LoadedCreationDateTime { get; set; }
+        public string DefaultOriginalID { get; set; }
+
+        // These variables are used while reading the archive control file
+        protected int? m_curY = null;
+        protected int? m_curX = null;
+        protected RegionInfo m_curRegion;
+
+
+        public DearchiveScenesInfo()
+        {
+            MultiRegionFormat = false;
+        }
+
+
+        // The following methods are used while reading the archive control file
+
+        public void StartRow()
+        {
+            m_curY = (m_curY == null) ? 0 : m_curY + 1;
+            m_curX = null;
+        }
+
+        public void StartRegion()
+        {
+            m_curX = (m_curX == null) ? 0 : m_curX + 1;
+            // Note: this doesn't mean we have a real region in this location; this could just be a "hole"
+        }
+
+        public void SetRegionOriginalID(string id)
+        {
+            m_curRegion = new RegionInfo();
+            m_curRegion.Location = new Point((int)m_curX, (int)m_curY);
+            m_curRegion.OriginalID = id;
+            // 'curRegion' will be saved in 'm_directory2region' when SetRegionDir() is called
+        }
+
+        public void SetRegionDirectory(string directory)
+        {
+            m_curRegion.Directory = directory;
+            m_directory2region[directory] = m_curRegion;
+        }
+
+
+        /// <summary>
+        /// Sets all the scenes present in the simulator.
+        /// </summary>
+        /// <remarks>
+        /// This method matches regions in the archive to scenes in the simulator according to
+        /// their relative position. We only load regions if there's an existing Scene in the
+        /// grid location where the region should be loaded.
+        /// </remarks>
+        /// <param name="rootScene">The scene where the Load OAR operation was run</param>
+        /// <param name="simulatorScenes">All the scenes in the simulator</param>
+        public void SetSimulatorScenes(Scene rootScene, ArchiveScenesGroup simulatorScenes)
+        {
+            foreach (RegionInfo archivedRegion in m_directory2region.Values)
+            {
+                Point location = new Point((int)rootScene.RegionInfo.RegionLocX, (int)rootScene.RegionInfo.RegionLocY);
+                location.Offset(archivedRegion.Location);
+
+                Scene scene;
+                if (simulatorScenes.TryGetScene(location, out scene))
+                {
+                    archivedRegion.Scene = scene;
+                    m_newId2region[scene.RegionInfo.RegionID] = archivedRegion;
+                }
+                else
+                {
+                    m_log.WarnFormat("[ARCHIVER]: Not loading archived region {0} because there's no existing region at location {1},{2}",
+                        archivedRegion.Directory, location.X, location.Y);
+                }
+            }
+        }
+
+        /// <summary>
+        /// Returns the archived region according to the path of a file in the archive.
+        /// Also, converts the full path into a path that is relative to the region's directory.
+        /// </summary>
+        /// <param name="fullPath">The path of a file in the archive</param>
+        /// <param name="scene">The corresponding Scene, or null if none</param>
+        /// <param name="relativePath">The path relative to the region's directory. (Or the original
+        /// path, if this file doesn't belong to a region.)</param>
+        /// <returns>True: use this file; False: skip it</returns>
+        public bool GetRegionFromPath(string fullPath, out Scene scene, out string relativePath)
+        {
+            scene = null;
+            relativePath = fullPath;
+
+            if (!MultiRegionFormat)
+            {
+                if (m_newId2region.Count > 0)
+                    scene = m_newId2region.First().Value.Scene;
+                return true;
+            }
+
+            if (!fullPath.StartsWith(ArchiveConstants.REGIONS_PATH))
+                return true;    // this file doesn't belong to a region
+
+            string[] parts = fullPath.Split(new Char[] { '/' }, 3);
+            if (parts.Length != 3)
+                return false;
+            string regionDirectory = parts[1];
+            relativePath = parts[2];
+            
+            RegionInfo region;
+            if (m_directory2region.TryGetValue(regionDirectory, out region))
+            {
+                scene = region.Scene;
+                return (scene != null);
+            }
+            else
+            {
+                return false;
+            }
+        }
+
+        /// <summary>
+        /// Returns the original UUID of a region (from the simulator where the OAR was saved),
+        /// given the UUID of the scene it was loaded into in the current simulator.
+        /// </summary>
+        /// <param name="newID"></param>
+        /// <returns></returns>
+        public string GetOriginalRegionID(UUID newID)
+        {
+            RegionInfo region;
+            if (m_newId2region.TryGetValue(newID, out region))
+                return region.OriginalID;
+            else
+                return DefaultOriginalID;
+        }
+
+        /// <summary>
+        /// Returns the scenes that have been (or will be) loaded.
+        /// </summary>
+        /// <returns></returns>
+        public List<UUID> GetLoadedScenes()
+        {
+            return m_newId2region.Keys.ToList();
+        }
+
+    }
+}
diff --git a/OpenSim/Region/CoreModules/World/Archiver/Tests/ArchiverTests.cs b/OpenSim/Region/CoreModules/World/Archiver/Tests/ArchiverTests.cs
index 5deaf52..82f49b0 100644
--- a/OpenSim/Region/CoreModules/World/Archiver/Tests/ArchiverTests.cs
+++ b/OpenSim/Region/CoreModules/World/Archiver/Tests/ArchiverTests.cs
@@ -47,32 +47,41 @@ using ArchiveConstants = OpenSim.Framework.Serialization.ArchiveConstants;
 using TarArchiveReader = OpenSim.Framework.Serialization.TarArchiveReader;
 using TarArchiveWriter = OpenSim.Framework.Serialization.TarArchiveWriter;
 using RegionSettings = OpenSim.Framework.RegionSettings;
+using OpenSim.Region.Framework.Interfaces;
 
 namespace OpenSim.Region.CoreModules.World.Archiver.Tests
 {
     [TestFixture]
-    public class ArchiverTests
+    public class ArchiverTests : OpenSimTestCase
     {
         private Guid m_lastRequestId;
         private string m_lastErrorMessage;
 
+        protected SceneHelpers m_sceneHelpers;
         protected TestScene m_scene;
         protected ArchiverModule m_archiverModule;
+        protected SerialiserModule m_serialiserModule;
 
         protected TaskInventoryItem m_soundItem;
         
         [SetUp]
-        public void SetUp()
+        public override void SetUp()
         {
+            base.SetUp();
+
+            // FIXME: Do something about this - relying on statics in unit tests causes trouble sooner or later
+            new SceneManager();
+
             m_archiverModule = new ArchiverModule();
-            SerialiserModule serialiserModule = new SerialiserModule();
+            m_serialiserModule = new SerialiserModule();
             TerrainModule terrainModule = new TerrainModule();
 
-            m_scene = new SceneHelpers().SetupScene();
-            SceneHelpers.SetupSceneModules(m_scene, m_archiverModule, serialiserModule, terrainModule);
+            m_sceneHelpers = new SceneHelpers();
+            m_scene = m_sceneHelpers.SetupScene();
+            SceneHelpers.SetupSceneModules(m_scene, m_archiverModule, m_serialiserModule, terrainModule);
         }
-        
-        private void LoadCompleted(Guid requestId, string errorMessage)
+
+        private void LoadCompleted(Guid requestId, List<UUID> loadedScenes, string errorMessage)
         {
             lock (this)
             {
@@ -128,26 +137,10 @@ namespace OpenSim.Region.CoreModules.World.Archiver.Tests
             TestHelpers.InMethod();
 //            log4net.Config.XmlConfigurator.Configure();
 
-            SceneObjectPart part1 = CreateSceneObjectPart1();
-            SceneObjectGroup sog1 = new SceneObjectGroup(part1);
-            m_scene.AddNewSceneObject(sog1, false);
-
-            SceneObjectPart part2 = CreateSceneObjectPart2();
-            
-            AssetNotecard nc = new AssetNotecard();
-            nc.BodyText = "Hello World!";
-            nc.Encode();
-            UUID ncAssetUuid = new UUID("00000000-0000-0000-1000-000000000000");
-            UUID ncItemUuid = new UUID("00000000-0000-0000-1100-000000000000");
-            AssetBase ncAsset 
-                = AssetHelpers.CreateAsset(ncAssetUuid, AssetType.Notecard, nc.AssetData, UUID.Zero);
-            m_scene.AssetService.Store(ncAsset);
-            SceneObjectGroup sog2 = new SceneObjectGroup(part2);
-            TaskInventoryItem ncItem 
-                = new TaskInventoryItem { Name = "ncItem", AssetID = ncAssetUuid, ItemID = ncItemUuid };
-            part2.Inventory.AddInventoryItem(ncItem, true);
-            
-            m_scene.AddNewSceneObject(sog2, false);
+            SceneObjectGroup sog1;
+            SceneObjectGroup sog2;
+            UUID ncAssetUuid;
+            CreateTestObjects(m_scene, out sog1, out sog2, out ncAssetUuid);
 
             MemoryStream archiveWriteStream = new MemoryStream();
             m_scene.EventManager.OnOarFileSaved += SaveCompleted;
@@ -186,7 +179,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver.Tests
             Assert.That(filePath, Is.EqualTo(ArchiveConstants.CONTROL_FILE_PATH));
             
             ArchiveReadRequest arr = new ArchiveReadRequest(m_scene, (Stream)null, false, false, Guid.Empty);
-            arr.LoadControlFile(filePath, data);
+            arr.LoadControlFile(filePath, data, new DearchiveScenesInfo());
             
             Assert.That(arr.ControlFileLoaded, Is.True);        
             
@@ -211,6 +204,30 @@ namespace OpenSim.Region.CoreModules.World.Archiver.Tests
             // TODO: Test presence of more files and contents of files.
         }
 
+        private void CreateTestObjects(Scene scene, out SceneObjectGroup sog1, out SceneObjectGroup sog2, out UUID ncAssetUuid)
+        {
+            SceneObjectPart part1 = CreateSceneObjectPart1();
+            sog1 = new SceneObjectGroup(part1);
+            scene.AddNewSceneObject(sog1, false);
+
+            AssetNotecard nc = new AssetNotecard();
+            nc.BodyText = "Hello World!";
+            nc.Encode();
+            ncAssetUuid = UUID.Random();
+            UUID ncItemUuid = UUID.Random();
+            AssetBase ncAsset
+                = AssetHelpers.CreateAsset(ncAssetUuid, AssetType.Notecard, nc.AssetData, UUID.Zero);
+            m_scene.AssetService.Store(ncAsset);
+
+            TaskInventoryItem ncItem
+                = new TaskInventoryItem { Name = "ncItem", AssetID = ncAssetUuid, ItemID = ncItemUuid };
+            SceneObjectPart part2 = CreateSceneObjectPart2();
+            sog2 = new SceneObjectGroup(part2);
+            part2.Inventory.AddInventoryItem(ncItem, true);
+
+            scene.AddNewSceneObject(sog2, false);
+        }
+
         /// <summary>
         /// Test saving an OpenSim Region Archive with the no assets option
         /// </summary>
@@ -270,7 +287,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver.Tests
             Assert.That(filePath, Is.EqualTo(ArchiveConstants.CONTROL_FILE_PATH));
             
             ArchiveReadRequest arr = new ArchiveReadRequest(m_scene, (Stream)null, false, false, Guid.Empty);
-            arr.LoadControlFile(filePath, data);
+            arr.LoadControlFile(filePath, data, new DearchiveScenesInfo());
             
             Assert.That(arr.ControlFileLoaded, Is.True);        
             
@@ -307,7 +324,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver.Tests
 
             tar.WriteFile(
                 ArchiveConstants.CONTROL_FILE_PATH,
-                new ArchiveWriteRequestPreparation(null, (Stream)null, Guid.Empty).CreateControlFile(new Dictionary<string, Object>()));
+                new ArchiveWriteRequest(m_scene, (Stream)null, Guid.Empty).CreateControlFile(new ArchiveScenesGroup()));
 
             SceneObjectGroup sog1 = SceneHelpers.CreateSceneObject(1, ownerId, "obj1-", 0x11);
             SceneObjectPart sop2
@@ -362,11 +379,10 @@ namespace OpenSim.Region.CoreModules.World.Archiver.Tests
             // Also check that direct entries which will also have a file entry containing that directory doesn't 
             // upset load
             tar.WriteDir(ArchiveConstants.TERRAINS_PATH);
-            
+
             tar.WriteFile(
                 ArchiveConstants.CONTROL_FILE_PATH,
-                new ArchiveWriteRequestPreparation(null, (Stream)null, Guid.Empty).CreateControlFile(new Dictionary<string, Object>()));
-
+                new ArchiveWriteRequest(m_scene, (Stream)null, Guid.Empty).CreateControlFile(new ArchiveScenesGroup()));
             SceneObjectPart part1 = CreateSceneObjectPart1();
 
             part1.SitTargetOrientation = new Quaternion(0.2f, 0.3f, 0.4f, 0.5f);
@@ -389,31 +405,12 @@ namespace OpenSim.Region.CoreModules.World.Archiver.Tests
             Assert.That(soundDataResourceName, Is.Not.Null);
 
             byte[] soundData;
-            Console.WriteLine("Loading " + soundDataResourceName);
-            using (Stream resource = assembly.GetManifestResourceStream(soundDataResourceName))
-            {
-                using (BinaryReader br = new BinaryReader(resource))
-                {
-                    // FIXME: Use the inspector instead
-                    soundData = br.ReadBytes(99999999);
-                    UUID soundUuid = UUID.Parse("00000000-0000-0000-0000-000000000001");
-                    string soundAssetFileName 
-                       = ArchiveConstants.ASSETS_PATH + soundUuid 
-                            + ArchiveConstants.ASSET_TYPE_TO_EXTENSION[(sbyte)AssetType.SoundWAV];
-                    tar.WriteFile(soundAssetFileName, soundData);
-                    
-                    /*
-                    AssetBase soundAsset = AssetHelpers.CreateAsset(soundUuid, soundData);
-                    scene.AssetService.Store(soundAsset);
-                    asset1FileName = ArchiveConstants.ASSETS_PATH + soundUuid + ".wav";
-                    */
-                    
-                    TaskInventoryItem item1 
-                        = new TaskInventoryItem { AssetID = soundUuid, ItemID = soundItemUuid, Name = soundItemName };
-                    part1.Inventory.AddInventoryItem(item1, true);
-                }
-            }
-            
+            UUID soundUuid;
+            CreateSoundAsset(tar, assembly, soundDataResourceName, out soundData, out soundUuid);
+
+            TaskInventoryItem item1
+                = new TaskInventoryItem { AssetID = soundUuid, ItemID = soundItemUuid, Name = soundItemName };
+            part1.Inventory.AddInventoryItem(item1, true);
             m_scene.AddNewSceneObject(object1, false);
 
             string object1FileName = string.Format(
@@ -435,6 +432,34 @@ namespace OpenSim.Region.CoreModules.World.Archiver.Tests
             
             Assert.That(m_lastErrorMessage, Is.Null);
 
+            TestLoadedRegion(part1, soundItemName, soundData);
+        }
+
+        private static void CreateSoundAsset(TarArchiveWriter tar, Assembly assembly, string soundDataResourceName, out byte[] soundData, out UUID soundUuid)
+        {
+            using (Stream resource = assembly.GetManifestResourceStream(soundDataResourceName))
+            {
+                using (BinaryReader br = new BinaryReader(resource))
+                {
+                    // FIXME: Use the inspector instead
+                    soundData = br.ReadBytes(99999999);
+                    soundUuid = UUID.Parse("00000000-0000-0000-0000-000000000001");
+                    string soundAssetFileName
+                       = ArchiveConstants.ASSETS_PATH + soundUuid
+                            + ArchiveConstants.ASSET_TYPE_TO_EXTENSION[(sbyte)AssetType.SoundWAV];
+                    tar.WriteFile(soundAssetFileName, soundData);
+
+                    /*
+                    AssetBase soundAsset = AssetHelpers.CreateAsset(soundUuid, soundData);
+                    scene.AssetService.Store(soundAsset);
+                    asset1FileName = ArchiveConstants.ASSETS_PATH + soundUuid + ".wav";
+                    */
+                }
+            }
+        }
+
+        private void TestLoadedRegion(SceneObjectPart part1, string soundItemName, byte[] soundData)
+        {
             SceneObjectPart object1PartLoaded = m_scene.GetSceneObjectPart(part1.Name);
 
             Assert.That(object1PartLoaded, Is.Not.Null, "object1 was not loaded");
@@ -454,9 +479,6 @@ namespace OpenSim.Region.CoreModules.World.Archiver.Tests
             Assert.That(loadedSoundAsset.Data, Is.EqualTo(soundData), "saved and loaded sound data do not match");
 
             Assert.Greater(m_scene.LandChannel.AllParcels().Count, 0, "incorrect number of parcels");
-
-            // Temporary
-            Console.WriteLine("Successfully completed {0}", MethodBase.GetCurrentMethod());
         }
 
         /// <summary>
@@ -516,7 +538,8 @@ namespace OpenSim.Region.CoreModules.World.Archiver.Tests
                 SerialiserModule serialiserModule = new SerialiserModule();
                 TerrainModule terrainModule = new TerrainModule();
 
-                TestScene scene2 = new SceneHelpers().SetupScene();
+                m_sceneHelpers = new SceneHelpers();
+                TestScene scene2 = m_sceneHelpers.SetupScene();
                 SceneHelpers.SetupSceneModules(scene2, archiverModule, serialiserModule, terrainModule);
 
                 // Make sure there's a valid owner for the owner we saved (this should have been wiped if the code is
@@ -554,7 +577,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver.Tests
             tar.WriteDir(ArchiveConstants.TERRAINS_PATH);
             tar.WriteFile(
                 ArchiveConstants.CONTROL_FILE_PATH,
-                new ArchiveWriteRequestPreparation(null, (Stream)null, Guid.Empty).CreateControlFile(new Dictionary<string, Object>()));
+                new ArchiveWriteRequest(m_scene, (Stream)null, Guid.Empty).CreateControlFile(new ArchiveScenesGroup()));
 
             RegionSettings rs = new RegionSettings();
             rs.AgentLimit = 17;
@@ -664,7 +687,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver.Tests
                 SerialiserModule serialiserModule = new SerialiserModule();
                 TerrainModule terrainModule = new TerrainModule();
 
-                Scene scene = new SceneHelpers().SetupScene();
+                Scene scene = m_sceneHelpers.SetupScene();
                 SceneHelpers.SetupSceneModules(scene, archiverModule, serialiserModule, terrainModule);
 
                 m_scene.AddNewSceneObject(new SceneObjectGroup(part2), false);
@@ -700,5 +723,258 @@ namespace OpenSim.Region.CoreModules.World.Archiver.Tests
                 Assert.That(object2PartMerged.GroupPosition, Is.EqualTo(part2.GroupPosition), "object2 group position not equal after merge");
             }
         }
+
+        /// <summary>
+        /// Test saving a multi-region OAR.
+        /// </summary>
+        [Test]
+        public void TestSaveMultiRegionOar()
+        {
+            TestHelpers.InMethod();
+
+            // Create test regions
+
+            int WIDTH = 2;
+            int HEIGHT = 2;
+
+            List<Scene> scenes = new List<Scene>();
+
+            // Maps (Directory in OAR file -> scene)
+            Dictionary<string, Scene> regionPaths = new Dictionary<string, Scene>();
+
+            // Maps (Scene -> expected object paths)
+            Dictionary<UUID, List<string>> expectedPaths = new Dictionary<UUID, List<string>>();
+
+            // List of expected assets
+            List<UUID> expectedAssets = new List<UUID>();
+
+            for (uint y = 0; y < HEIGHT; y++)
+            {
+                for (uint x = 0; x < WIDTH; x++)
+                {
+                    Scene scene;
+                    if (x == 0 && y == 0)
+                    {
+                        scene = m_scene;   // this scene was already created in SetUp()
+                    }
+                    else
+                    {
+                        scene = m_sceneHelpers.SetupScene(string.Format("Unit test region {0}", (y * WIDTH) + x + 1), UUID.Random(), 1000 + x, 1000 + y);
+                        SceneHelpers.SetupSceneModules(scene, new ArchiverModule(), m_serialiserModule, new TerrainModule());
+                    }
+                    scenes.Add(scene);
+
+                    string dir = String.Format("{0}_{1}_{2}", x + 1, y + 1, scene.RegionInfo.RegionName.Replace(" ", "_"));
+                    regionPaths[dir] = scene;
+
+                    SceneObjectGroup sog1;
+                    SceneObjectGroup sog2;
+                    UUID ncAssetUuid;
+                    
+                    CreateTestObjects(scene, out sog1, out sog2, out ncAssetUuid);
+
+                    expectedPaths[scene.RegionInfo.RegionID] = new List<string>();
+                    expectedPaths[scene.RegionInfo.RegionID].Add(ArchiveHelpers.CreateObjectPath(sog1));
+                    expectedPaths[scene.RegionInfo.RegionID].Add(ArchiveHelpers.CreateObjectPath(sog2));
+
+                    expectedAssets.Add(ncAssetUuid);
+                }
+            }
+
+
+            // Save OAR
+
+            MemoryStream archiveWriteStream = new MemoryStream();
+            m_scene.EventManager.OnOarFileSaved += SaveCompleted;
+
+            Guid requestId = new Guid("00000000-0000-0000-0000-808080808080");
+
+            Dictionary<string, Object> options = new Dictionary<string, Object>();
+            options.Add("all", true);
+
+            lock (this)
+            {
+                m_archiverModule.ArchiveRegion(archiveWriteStream, requestId, options);
+                Monitor.Wait(this, 60000);
+            }
+
+
+            // Check that the OAR contains the expected data
+
+            Assert.That(m_lastRequestId, Is.EqualTo(requestId));
+
+            byte[] archive = archiveWriteStream.ToArray();
+            MemoryStream archiveReadStream = new MemoryStream(archive);
+            TarArchiveReader tar = new TarArchiveReader(archiveReadStream);
+
+            Dictionary<UUID, List<string>> foundPaths = new Dictionary<UUID, List<string>>();
+            List<UUID> foundAssets = new List<UUID>();
+
+            foreach (Scene scene in scenes)
+            {
+                foundPaths[scene.RegionInfo.RegionID] = new List<string>();
+            }
+
+            string filePath;
+            TarArchiveReader.TarEntryType tarEntryType;
+
+            byte[] data = tar.ReadEntry(out filePath, out tarEntryType);
+            Assert.That(filePath, Is.EqualTo(ArchiveConstants.CONTROL_FILE_PATH));
+
+            ArchiveReadRequest arr = new ArchiveReadRequest(m_scene, (Stream)null, false, false, Guid.Empty);
+            arr.LoadControlFile(filePath, data, new DearchiveScenesInfo());
+
+            Assert.That(arr.ControlFileLoaded, Is.True);
+
+            while (tar.ReadEntry(out filePath, out tarEntryType) != null)
+            {
+                if (filePath.StartsWith(ArchiveConstants.ASSETS_PATH))
+                {
+                    // Assets are shared, so this file doesn't belong to any specific region.
+                    string fileName = filePath.Remove(0, ArchiveConstants.ASSETS_PATH.Length);
+                    if (fileName.EndsWith("_notecard.txt"))
+                        foundAssets.Add(UUID.Parse(fileName.Substring(0, fileName.Length - "_notecard.txt".Length)));
+                }
+                else
+                {
+                    // This file belongs to one of the regions. Find out which one.
+                    Assert.IsTrue(filePath.StartsWith(ArchiveConstants.REGIONS_PATH));
+                    string[] parts = filePath.Split(new Char[] { '/' }, 3);
+                    Assert.AreEqual(3, parts.Length);
+                    string regionDirectory = parts[1];
+                    string relativePath = parts[2];
+                    Scene scene = regionPaths[regionDirectory];
+
+                    if (relativePath.StartsWith(ArchiveConstants.OBJECTS_PATH))
+                    {
+                        foundPaths[scene.RegionInfo.RegionID].Add(relativePath);
+                    }
+                }
+            }
+
+            Assert.AreEqual(scenes.Count, foundPaths.Count);
+            foreach (Scene scene in scenes)
+            {
+                Assert.That(foundPaths[scene.RegionInfo.RegionID], Is.EquivalentTo(expectedPaths[scene.RegionInfo.RegionID]));
+            }
+
+            Assert.That(foundAssets, Is.EquivalentTo(expectedAssets));
+        }
+
+        /// <summary>
+        /// Test loading a multi-region OAR.
+        /// </summary>
+        [Test]
+        public void TestLoadMultiRegionOar()
+        {
+            TestHelpers.InMethod();
+
+            // Create an ArchiveScenesGroup with the regions in the OAR. This is needed to generate the control file.
+
+            int WIDTH = 2;
+            int HEIGHT = 2;
+
+            for (uint y = 0; y < HEIGHT; y++)
+            {
+                for (uint x = 0; x < WIDTH; x++)
+                {
+                    Scene scene;
+                    if (x == 0 && y == 0)
+                    {
+                        scene = m_scene;   // this scene was already created in SetUp()
+                    }
+                    else
+                    {
+                        scene = m_sceneHelpers.SetupScene(string.Format("Unit test region {0}", (y * WIDTH) + x + 1), UUID.Random(), 1000 + x, 1000 + y);
+                        SceneHelpers.SetupSceneModules(scene, new ArchiverModule(), m_serialiserModule, new TerrainModule());
+                    }
+                }
+            }
+
+            ArchiveScenesGroup scenesGroup = new ArchiveScenesGroup();
+            SceneManager.Instance.ForEachScene(delegate(Scene scene)
+            {
+                scenesGroup.AddScene(scene);
+            });
+            scenesGroup.CalcSceneLocations();
+
+            // Generate the OAR file
+
+            MemoryStream archiveWriteStream = new MemoryStream();
+            TarArchiveWriter tar = new TarArchiveWriter(archiveWriteStream);
+
+            ArchiveWriteRequest writeRequest = new ArchiveWriteRequest(m_scene, (Stream)null, Guid.Empty);
+            writeRequest.MultiRegionFormat = true;
+            tar.WriteFile(
+                ArchiveConstants.CONTROL_FILE_PATH, writeRequest.CreateControlFile(scenesGroup));
+
+            SceneObjectPart part1 = CreateSceneObjectPart1();
+            part1.SitTargetOrientation = new Quaternion(0.2f, 0.3f, 0.4f, 0.5f);
+            part1.SitTargetPosition = new Vector3(1, 2, 3);
+
+            SceneObjectGroup object1 = new SceneObjectGroup(part1);
+
+            // Let's put some inventory items into our object
+            string soundItemName = "sound-item1";
+            UUID soundItemUuid = UUID.Parse("00000000-0000-0000-0000-000000000002");
+            Type type = GetType();
+            Assembly assembly = type.Assembly;
+            string soundDataResourceName = null;
+            string[] names = assembly.GetManifestResourceNames();
+            foreach (string name in names)
+            {
+                if (name.EndsWith(".Resources.test-sound.wav"))
+                    soundDataResourceName = name;
+            }
+            Assert.That(soundDataResourceName, Is.Not.Null);
+
+            byte[] soundData;
+            UUID soundUuid;
+            CreateSoundAsset(tar, assembly, soundDataResourceName, out soundData, out soundUuid);
+
+            TaskInventoryItem item1
+                = new TaskInventoryItem { AssetID = soundUuid, ItemID = soundItemUuid, Name = soundItemName };
+            part1.Inventory.AddInventoryItem(item1, true);
+            m_scene.AddNewSceneObject(object1, false);
+
+            string object1FileName = string.Format(
+                "{0}_{1:000}-{2:000}-{3:000}__{4}.xml",
+                part1.Name,
+                Math.Round(part1.GroupPosition.X), Math.Round(part1.GroupPosition.Y), Math.Round(part1.GroupPosition.Z),
+                part1.UUID);
+            string path = "regions/1_1_Unit_test_region/" + ArchiveConstants.OBJECTS_PATH + object1FileName;
+            tar.WriteFile(path, SceneObjectSerializer.ToXml2Format(object1));
+
+            tar.Close();
+
+            
+            // Delete the current objects, to test that they're loaded from the OAR and didn't
+            // just remain in the scene.
+            SceneManager.Instance.ForEachScene(delegate(Scene scene)
+            {
+                scene.DeleteAllSceneObjects();
+            });
+
+            // Create a "hole", to test that that the corresponding region isn't loaded from the OAR
+            SceneManager.Instance.CloseScene(SceneManager.Instance.Scenes[1]);
+
+
+            // Check thay the OAR file contains the expected data
+
+            MemoryStream archiveReadStream = new MemoryStream(archiveWriteStream.ToArray());
+
+            lock (this)
+            {
+                m_scene.EventManager.OnOarFileLoaded += LoadCompleted;
+                m_archiverModule.DearchiveRegion(archiveReadStream);
+            }
+
+            Assert.That(m_lastErrorMessage, Is.Null);
+
+            Assert.AreEqual(3, SceneManager.Instance.Scenes.Count);
+
+            TestLoadedRegion(part1, soundItemName, soundData);
+        }
+
     }
 }
diff --git a/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs b/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
index fdef9d8..5fd1bce 100644
--- a/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
+++ b/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
@@ -40,6 +40,7 @@ using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
+using RegionFlags = OpenMetaverse.RegionFlags;
 
 namespace OpenSim.Region.CoreModules.World.Estate
 {
diff --git a/OpenSim/Region/CoreModules/World/Land/DwellModule.cs b/OpenSim/Region/CoreModules/World/Land/DwellModule.cs
new file mode 100644
index 0000000..d1f05a7
--- /dev/null
+++ b/OpenSim/Region/CoreModules/World/Land/DwellModule.cs
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Reflection;
+using System.Text;
+using log4net;
+using Nini.Config;
+using OpenMetaverse;
+using OpenMetaverse.StructuredData;
+using OpenMetaverse.Messages.Linden;
+using OpenSim.Framework;
+using OpenSim.Framework.Capabilities;
+using OpenSim.Framework.Console;
+using OpenSim.Framework.Servers;
+using OpenSim.Framework.Servers.HttpServer;
+using OpenSim.Region.CoreModules.Framework.InterfaceCommander;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.Physics.Manager;
+using OpenSim.Services.Interfaces;
+using Caps = OpenSim.Framework.Capabilities.Caps;
+using GridRegion = OpenSim.Services.Interfaces.GridRegion;
+
+namespace OpenSim.Region.CoreModules.World.Land
+{
+    public class DwellModule : IDwellModule, INonSharedRegionModule
+    {
+        private Scene m_scene;
+
+        public Type ReplaceableInterface
+        {
+            get { return typeof(IDwellModule); }
+        }
+
+        public string Name
+        {
+            get { return "DwellModule"; }
+        }
+
+        public void Initialise(IConfigSource source)
+        {
+        }
+
+        public void AddRegion(Scene scene)
+        {
+            m_scene = scene;
+
+            m_scene.EventManager.OnNewClient += OnNewClient;
+        }
+
+        public void RegionLoaded(Scene scene)
+        {
+        }
+
+        public void RemoveRegion(Scene scene)
+        {
+        }
+
+        public void Close()
+        {
+        }
+
+        public void OnNewClient(IClientAPI client)
+        {
+            client.OnParcelDwellRequest += ClientOnParcelDwellRequest;
+        }
+
+        private void ClientOnParcelDwellRequest(int localID, IClientAPI client)
+        {
+            ILandObject parcel = m_scene.LandChannel.GetLandObject(localID);
+            if (parcel == null)
+                return;
+
+            client.SendParcelDwellReply(localID, parcel.LandData.GlobalID, parcel.LandData.Dwell);
+        }
+
+        public int GetDwell(UUID parcelID)
+        {
+            return 0;
+        }
+    }
+}
diff --git a/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs b/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
index aae6603..b5e2bc3 100644
--- a/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
+++ b/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
@@ -927,6 +927,7 @@ namespace OpenSim.Region.CoreModules.World.Land
             ILandObject newLand = startLandObject.Copy();
             newLand.LandData.Name = newLand.LandData.Name;
             newLand.LandData.GlobalID = UUID.Random();
+            newLand.LandData.Dwell = 0;
 
             newLand.SetLandBitmap(newLand.GetSquareLandBitmap(start_x, start_y, end_x, end_y));
 
diff --git a/OpenSim/Region/CoreModules/World/Land/LandObject.cs b/OpenSim/Region/CoreModules/World/Land/LandObject.cs
index 4f06737..d5b2adb 100644
--- a/OpenSim/Region/CoreModules/World/Land/LandObject.cs
+++ b/OpenSim/Region/CoreModules/World/Land/LandObject.cs
@@ -33,6 +33,7 @@ using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
+using RegionFlags = OpenMetaverse.RegionFlags;
 
 namespace OpenSim.Region.CoreModules.World.Land
 {
diff --git a/OpenSim/Region/CoreModules/World/Land/PrimCountModule.cs b/OpenSim/Region/CoreModules/World/Land/PrimCountModule.cs
index 102b4d7..cbb3abe 100644
--- a/OpenSim/Region/CoreModules/World/Land/PrimCountModule.cs
+++ b/OpenSim/Region/CoreModules/World/Land/PrimCountModule.cs
@@ -69,7 +69,7 @@ namespace OpenSim.Region.CoreModules.World.Land
         /// without recounting the whole sim.
         /// 
         /// We start out tainted so that the first get call resets the various prim counts.
-        /// <value>
+        /// </value>
         private bool m_Tainted = true;
         
         private Object m_TaintLock = new Object();
diff --git a/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs b/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs
index 09f6758..ab8f143 100644
--- a/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs
+++ b/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs
@@ -27,9 +27,12 @@
 
 using System;
 using System.Collections.Generic;
+using System.IO;
+using System.Linq;
 using System.Reflection;
 using System.Text;
 using System.Text.RegularExpressions;
+using System.Xml;
 using log4net;
 using Mono.Addins;
 using NDesk.Options;
@@ -40,6 +43,7 @@ using OpenSim.Framework.Console;
 using OpenSim.Framework.Monitoring;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.Framework.Scenes.Serialization;
 
 namespace OpenSim.Region.CoreModules.World.Objects.Commands
 {
@@ -83,52 +87,85 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             m_console.Commands.AddCommand(
                 "Objects", false, "delete object owner",
                 "delete object owner <UUID>",
-                "Delete a scene object by owner", HandleDeleteObject);
+                "Delete scene objects by owner",
+                "Command will ask for confirmation before proceeding.",
+                HandleDeleteObject);
 
             m_console.Commands.AddCommand(
                 "Objects", false, "delete object creator",
                 "delete object creator <UUID>",
-                "Delete a scene object by creator", HandleDeleteObject);
+                "Delete scene objects by creator",
+                "Command will ask for confirmation before proceeding.",
+                HandleDeleteObject);
 
             m_console.Commands.AddCommand(
-                "Objects", false, "delete object uuid",
-                "delete object uuid <UUID>",
-                "Delete a scene object by uuid", HandleDeleteObject);
+                "Objects", false, "delete object id",
+                "delete object id <UUID-or-localID>",
+                "Delete a scene object by uuid or localID",
+                HandleDeleteObject);
 
             m_console.Commands.AddCommand(
                 "Objects", false, "delete object name",
                 "delete object name [--regex] <name>",
                 "Delete a scene object by name.",
-                "If --regex is specified then the name is treatead as a regular expression",
+                "Command will ask for confirmation before proceeding.\n"
+                  + "If --regex is specified then the name is treatead as a regular expression",
                 HandleDeleteObject);
 
             m_console.Commands.AddCommand(
                 "Objects", false, "delete object outside",
                 "delete object outside",
-                "Delete all scene objects outside region boundaries", HandleDeleteObject);
+                "Delete all scene objects outside region boundaries",
+                "Command will ask for confirmation before proceeding.",
+                HandleDeleteObject);
 
             m_console.Commands.AddCommand(
                 "Objects",
                 false,
-                "show object uuid",
-                "show object uuid <UUID>",
-                "Show details of a scene object with the given UUID", HandleShowObjectByUuid);
+                "delete object pos",
+                "delete object pos <start-coord> to <end-coord>",
+                "Delete scene objects within the given area.",
+                ConsoleUtil.CoordHelp,
+                HandleDeleteObject);
+
+            m_console.Commands.AddCommand(
+                "Objects",
+                false,
+                "show object id",
+                "show object id [--full] <UUID-or-localID>",
+                "Show details of a scene object with the given UUID or localID",
+                "The --full option will print out information on all the parts of the object.\n"
+                    + "For yet more detailed part information, use the \"show part\" commands.",
+                HandleShowObjectById);
 
             m_console.Commands.AddCommand(
                 "Objects",
                 false,
                 "show object name",
-                "show object name [--regex] <name>",
+                "show object name [--full] [--regex] <name>",
                 "Show details of scene objects with the given name.",
-                "If --regex is specified then the name is treatead as a regular expression",
+                "The --full option will print out information on all the parts of the object.\n"
+                    + "For yet more detailed part information, use the \"show part\" commands.\n"
+                    + "If --regex is specified then the name is treatead as a regular expression.",
                 HandleShowObjectByName);
 
             m_console.Commands.AddCommand(
                 "Objects",
                 false,
-                "show part uuid",
-                "show part uuid <UUID>",
-                "Show details of a scene object parts with the given UUID", HandleShowPartByUuid);
+                "show object pos",
+                "show object pos [--full] <start-coord> to <end-coord>",
+                "Show details of scene objects within the given area.",
+                "The --full option will print out information on all the parts of the object.\n"
+                    + "For yet more detailed part information, use the \"show part\" commands.\n"
+                    + ConsoleUtil.CoordHelp,
+                HandleShowObjectByPos);
+
+            m_console.Commands.AddCommand(
+                "Objects",
+                false,
+                "show part id",
+                "show part id <UUID-or-localID>",
+                "Show details of a scene object part with the given UUID or localID", HandleShowPartById);
 
             m_console.Commands.AddCommand(
                 "Objects",
@@ -136,8 +173,28 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
                 "show part name",
                 "show part name [--regex] <name>",
                 "Show details of scene object parts with the given name.",
-                "If --regex is specified then the name is treatead as a regular expression",
+                "If --regex is specified then the name is treated as a regular expression",
                 HandleShowPartByName);
+
+            m_console.Commands.AddCommand(
+                "Objects",
+                false,
+                "show part pos",
+                "show part pos <start-coord> to <end-coord>",
+                "Show details of scene object parts within the given area.",
+                ConsoleUtil.CoordHelp,
+                HandleShowPartByPos);
+
+            m_console.Commands.AddCommand(
+                "Objects",
+                false,
+                "dump object id",
+                "dump object id <UUID-or-localID>",
+                "Dump the formatted serialization of the given object to the file <UUID>.xml",
+                "e.g. dump object uuid c1ed6809-cc24-4061-a4c2-93082a2d1f1d will dump serialization to c1ed6809-cc24-4061-a4c2-93082a2d1f1d.xml\n"
+                    + "To locate the UUID or localID in the first place, you need to use the other show object commands.\n"
+                    + "If a local ID is given then the filename used is still that for the UUID",
+                HandleDumpObjectById);
         }
 
         public void RemoveRegion(Scene scene)
@@ -150,25 +207,75 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
 //            m_log.DebugFormat("[OBJECTS COMMANDS MODULE]: REGION {0} LOADED", scene.RegionInfo.RegionName);
         }
 
-        private void HandleShowObjectByUuid(string module, string[] cmd)
+        /// <summary>
+        /// Outputs the sogs to console.
+        /// </summary>
+        /// <param name='searchPredicate'></param>
+        /// <param name='showFull'>If true then output all part details.  If false then output summary.</param>
+        private void OutputSogsToConsole(Predicate<SceneObjectGroup> searchPredicate, bool showFull)
+        {
+            List<SceneObjectGroup> sceneObjects = m_scene.GetSceneObjectGroups().FindAll(searchPredicate);
+
+            StringBuilder sb = new StringBuilder();
+
+            foreach (SceneObjectGroup so in sceneObjects)
+            {
+                AddSceneObjectReport(sb, so, showFull);
+                sb.Append("\n");
+            }
+
+            sb.AppendFormat("{0} object(s) found in {1}\n", sceneObjects.Count, m_scene.Name);
+
+            m_console.OutputFormat(sb.ToString());
+        }
+
+        private void OutputSopsToConsole(Predicate<SceneObjectPart> searchPredicate, bool showFull)
+        {
+            List<SceneObjectGroup> sceneObjects = m_scene.GetSceneObjectGroups();
+            List<SceneObjectPart> parts = new List<SceneObjectPart>();
+
+            sceneObjects.ForEach(so => parts.AddRange(Array.FindAll<SceneObjectPart>(so.Parts, searchPredicate)));
+
+            StringBuilder sb = new StringBuilder();
+
+            foreach (SceneObjectPart part in parts)
+            {
+                AddScenePartReport(sb, part, showFull);
+                sb.Append("\n");
+            }
+
+            sb.AppendFormat("{0} parts found in {1}\n", parts.Count, m_scene.Name);
+
+            m_console.OutputFormat(sb.ToString());
+        }
+
+        private void HandleShowObjectById(string module, string[] cmdparams)
         {
             if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
                 return;
 
-            if (cmd.Length < 4)
+            bool showFull = false;
+            OptionSet options = new OptionSet().Add("full", v => showFull = v != null );
+
+            List<string> mainParams = options.Parse(cmdparams);
+
+            if (mainParams.Count < 4)
             {
                 m_console.OutputFormat("Usage: show object uuid <uuid>");
                 return;
             }
 
-            UUID objectUuid;
-            if (!UUID.TryParse(cmd[3], out objectUuid))
-            {
-                m_console.OutputFormat("{0} is not a valid uuid", cmd[3]);
+            UUID uuid;
+            uint localId;
+            if (!ConsoleUtil.TryParseConsoleId(m_console, mainParams[3], out uuid, out localId))
                 return;
-            }
 
-            SceneObjectGroup so = m_scene.GetSceneObjectGroup(objectUuid);
+            SceneObjectGroup so;
+
+            if (localId != ConsoleUtil.LocalIdNotFound)
+                so = m_scene.GetSceneObjectGroup(localId);
+            else
+                so = m_scene.GetSceneObjectGroup(uuid);
 
             if (so == null)
             {
@@ -177,7 +284,7 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             }
 
             StringBuilder sb = new StringBuilder();
-            AddSceneObjectReport(sb, so);
+            AddSceneObjectReport(sb, so, showFull);
 
             m_console.OutputFormat(sb.ToString());
         }
@@ -187,70 +294,91 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
                 return;
 
+            bool showFull = false;
             bool useRegex = false;
-            OptionSet options = new OptionSet().Add("regex", v=> useRegex = v != null );
+            OptionSet options = new OptionSet();
+            options.Add("full", v => showFull = v != null );
+            options.Add("regex", v => useRegex = v != null );
 
             List<string> mainParams = options.Parse(cmdparams);
 
             if (mainParams.Count < 4)
             {
-                m_console.OutputFormat("Usage: show object name [--regex] <name>");
+                m_console.OutputFormat("Usage: show object name [--full] [--regex] <name>");
                 return;
             }
 
             string name = mainParams[3];
 
-            List<SceneObjectGroup> sceneObjects = new List<SceneObjectGroup>();
-            Action<SceneObjectGroup> searchAction;
+            Predicate<SceneObjectGroup> searchPredicate;
 
             if (useRegex)
             {
                 Regex nameRegex = new Regex(name);
-                searchAction = so => { if (nameRegex.IsMatch(so.Name)) { sceneObjects.Add(so); }};
+                searchPredicate = so => nameRegex.IsMatch(so.Name);
             }
             else
             {
-                searchAction = so => { if (so.Name == name) { sceneObjects.Add(so); }};
+                searchPredicate = so => so.Name == name;
             }
 
-            m_scene.ForEachSOG(searchAction);
+            OutputSogsToConsole(searchPredicate, showFull);
+        }
 
-            if (sceneObjects.Count == 0)
-            {
-                m_console.OutputFormat("No objects with name {0} found in {1}", name, m_scene.RegionInfo.RegionName);
+        private void HandleShowObjectByPos(string module, string[] cmdparams)
+        {
+            if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
                 return;
-            }
 
-            StringBuilder sb = new StringBuilder();
+            bool showFull = false;
+            OptionSet options = new OptionSet().Add("full", v => showFull = v != null );
 
-            foreach (SceneObjectGroup so in sceneObjects)
+            List<string> mainParams = options.Parse(cmdparams);
+
+            if (mainParams.Count < 5)
             {
-                AddSceneObjectReport(sb, so);
-                sb.Append("\n");
+                m_console.OutputFormat("Usage: show object pos [--full] <start-coord> to <end-coord>");
+                return;
             }
 
-            m_console.OutputFormat(sb.ToString());
+            Vector3 startVector, endVector;
+
+            if (!TryParseVectorRange(cmdparams.Skip(3).Take(3), out startVector, out endVector))
+                return;
+
+            Predicate<SceneObjectGroup> searchPredicate
+                = so => Util.IsInsideBox(so.AbsolutePosition, startVector, endVector);
+
+            OutputSogsToConsole(searchPredicate, showFull);
         }
 
-        private void HandleShowPartByUuid(string module, string[] cmd)
+        private void HandleShowPartById(string module, string[] cmdparams)
         {
             if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
                 return;
 
-            if (cmd.Length < 4)
+//            bool showFull = false;
+            OptionSet options = new OptionSet();
+//            options.Add("full", v => showFull = v != null );
+
+            List<string> mainParams = options.Parse(cmdparams);
+
+            if (mainParams.Count < 4)
             {
-                m_console.OutputFormat("Usage: show part uuid <uuid>");
+                m_console.OutputFormat("Usage: show part id [--full] <UUID-or-localID>");
                 return;
             }
 
             UUID objectUuid;
-            if (!UUID.TryParse(cmd[3], out objectUuid))
-            {
-                m_console.OutputFormat("{0} is not a valid uuid", cmd[3]);
+            uint localId;
+            if (!ConsoleUtil.TryParseConsoleId(m_console, mainParams[3], out objectUuid, out localId))
                 return;
-            }
 
-            SceneObjectPart sop = m_scene.GetSceneObjectPart(objectUuid);
+            SceneObjectPart sop;
+            if (localId == ConsoleUtil.LocalIdNotFound)
+                sop = m_scene.GetSceneObjectPart(objectUuid);
+            else
+                sop = m_scene.GetSceneObjectPart(localId);
 
             if (sop == null)
             {
@@ -259,84 +387,239 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             }
 
             StringBuilder sb = new StringBuilder();
-            AddScenePartReport(sb, sop);
+            AddScenePartReport(sb, sop, true);
 
             m_console.OutputFormat(sb.ToString());
         }
 
+        private void HandleShowPartByPos(string module, string[] cmdparams)
+        {
+            if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
+                return;
+
+//            bool showFull = false;
+            OptionSet options = new OptionSet();
+//            options.Add("full", v => showFull = v != null );
+
+            List<string> mainParams = options.Parse(cmdparams);
+
+            if (mainParams.Count < 5)
+            {
+                m_console.OutputFormat("Usage: show part pos [--full] <start-coord> to <end-coord>");
+                return;
+            }
+
+            string rawConsoleStartVector = mainParams[3];
+            Vector3 startVector;
+
+            if (!ConsoleUtil.TryParseConsoleMinVector(rawConsoleStartVector, out startVector))
+            {
+                m_console.OutputFormat("Error: Start vector {0} does not have a valid format", rawConsoleStartVector);
+                return;
+            }
+
+            string rawConsoleEndVector = mainParams[5];
+            Vector3 endVector;
+
+            if (!ConsoleUtil.TryParseConsoleMaxVector(rawConsoleEndVector, out endVector))
+            {
+                m_console.OutputFormat("Error: End vector {0} does not have a valid format", rawConsoleEndVector);
+                return;
+            }
+
+            OutputSopsToConsole(sop => Util.IsInsideBox(sop.AbsolutePosition, startVector, endVector), true);
+        }
+
         private void HandleShowPartByName(string module, string[] cmdparams)
         {
             if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
                 return;
 
+//            bool showFull = false;
             bool useRegex = false;
-            OptionSet options = new OptionSet().Add("regex", v=> useRegex = v != null );
+            OptionSet options = new OptionSet();
+//            options.Add("full", v => showFull = v != null );
+            options.Add("regex", v => useRegex = v != null );
 
             List<string> mainParams = options.Parse(cmdparams);
 
             if (mainParams.Count < 4)
             {
-                m_console.OutputFormat("Usage: show part name [--regex] <name>");
+                m_console.OutputFormat("Usage: show part name [--full] [--regex] <name>");
                 return;
             }
 
             string name = mainParams[3];
 
-            List<SceneObjectPart> parts = new List<SceneObjectPart>();
-
-            Action<SceneObjectGroup> searchAction;
+            Predicate<SceneObjectPart> searchPredicate;
 
             if (useRegex)
             {
                 Regex nameRegex = new Regex(name);
-                searchAction = so => so.ForEachPart(sop => { if (nameRegex.IsMatch(sop.Name)) { parts.Add(sop); } });
+                searchPredicate = sop => nameRegex.IsMatch(sop.Name);
             }
             else
             {
-                searchAction = so => so.ForEachPart(sop => { if (sop.Name == name) { parts.Add(sop); } });
+                searchPredicate = sop => sop.Name == name;
             }
 
-            m_scene.ForEachSOG(searchAction);
+            OutputSopsToConsole(searchPredicate, true);
+        }
+
+        private void HandleDumpObjectById(string module, string[] cmdparams)
+        {
+            if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
+                return;
 
-            if (parts.Count == 0)
+            if (cmdparams.Length < 4)
             {
-                m_console.OutputFormat("No parts with name {0} found in {1}", name, m_scene.RegionInfo.RegionName);
+                m_console.OutputFormat("Usage: dump object id <UUID-or-localID>");
                 return;
             }
 
-            StringBuilder sb = new StringBuilder();
+            UUID objectUuid;
+            uint localId;
+            if (!ConsoleUtil.TryParseConsoleId(m_console, cmdparams[3], out objectUuid, out localId))
+                return;
 
-            foreach (SceneObjectPart part in parts)
+            SceneObjectGroup so;
+            if (localId == ConsoleUtil.LocalIdNotFound)
+                so = m_scene.GetSceneObjectGroup(objectUuid);
+            else
+                so = m_scene.GetSceneObjectGroup(localId);
+
+            if (so == null)
             {
-                AddScenePartReport(sb, part);
-                sb.Append("\n");
+//                m_console.OutputFormat("No part found with uuid {0}", objectUuid);
+                return;
             }
 
-            m_console.OutputFormat(sb.ToString());
+            // In case we found it via local ID.
+            objectUuid = so.UUID;
+
+            string fileName = string.Format("{0}.xml", objectUuid);
+
+            if (!ConsoleUtil.CheckFileDoesNotExist(m_console, fileName))
+                return;
+            
+            using (XmlTextWriter xtw = new XmlTextWriter(fileName, Encoding.UTF8))
+            {
+                xtw.Formatting = Formatting.Indented;
+                SceneObjectSerializer.ToOriginalXmlFormat(so, xtw, true);
+            }
+            
+            m_console.OutputFormat("Object dumped to file {0}", fileName);
         }
 
-        private StringBuilder AddSceneObjectReport(StringBuilder sb, SceneObjectGroup so)
+        /// <summary>
+        /// Append a scene object report to an input StringBuilder
+        /// </summary>
+        /// <returns></returns>
+        /// <param name='sb'></param>
+        /// <param name='so'</param>
+        /// <param name='showFull'>
+        /// If true then information on all parts of an object is appended.
+        /// If false then only summary information about an object is appended.
+        /// </param>
+        private StringBuilder AddSceneObjectReport(StringBuilder sb, SceneObjectGroup so, bool showFull)
         {
-            sb.AppendFormat("Name:        {0}\n", so.Name);
-            sb.AppendFormat("Description: {0}\n", so.Description);
-            sb.AppendFormat("Location:    {0} @ {1}\n", so.AbsolutePosition, so.Scene.RegionInfo.RegionName);
-            sb.AppendFormat("Parts:       {0}\n", so.PrimCount);
-            sb.AppendFormat("Flags:       {0}\n", so.RootPart.Flags);
+            if (showFull)
+            {
+                foreach (SceneObjectPart sop in so.Parts)
+                {
+                    AddScenePartReport(sb, sop, false);
+                    sb.Append("\n");
+                }
+            }
+            else
+            {
+                AddSummarySceneObjectReport(sb, so);
+            }
 
             return sb;
         }
 
-        private StringBuilder AddScenePartReport(StringBuilder sb, SceneObjectPart sop)
+        private StringBuilder AddSummarySceneObjectReport(StringBuilder sb, SceneObjectGroup so)
         {
-            sb.AppendFormat("Name:        {0}\n", sop.Name);
-            sb.AppendFormat("Description: {0}\n", sop.Description);
-            sb.AppendFormat("Location:    {0} @ {1}\n", sop.AbsolutePosition, sop.ParentGroup.Scene.RegionInfo.RegionName);
-            sb.AppendFormat("Parent:      {0}",
-                sop.IsRoot ? "Is Root\n" : string.Format("{0} {1}\n", sop.ParentGroup.Name, sop.ParentGroup.UUID));
-            sb.AppendFormat("Link number: {0}\n", sop.LinkNum);
-            sb.AppendFormat("Flags:       {0}\n", sop.Flags);
+            ConsoleDisplayList cdl = new ConsoleDisplayList();
+            cdl.AddRow("Name", so.Name);
+            cdl.AddRow("Descrition", so.Description);
+            cdl.AddRow("Local ID", so.LocalId);
+            cdl.AddRow("UUID", so.UUID);
+            cdl.AddRow("Location", string.Format("{0} @ {1}", so.AbsolutePosition, so.Scene.Name));
+            cdl.AddRow("Parts", so.PrimCount);
+            cdl.AddRow("Flags", so.RootPart.Flags);
+
+            return sb.Append(cdl.ToString());
+        }
 
-            return sb;
+        /// <summary>
+        /// Append a scene object part report to an input StringBuilder
+        /// </summary>
+        /// <returns></returns>
+        /// <param name='sb'></param>
+        /// <param name='sop'</param>
+        /// <param name='showFull'>
+        /// If true then information on each inventory item will be shown.
+        /// If false then only summary inventory information is shown.
+        /// </param>
+        private StringBuilder AddScenePartReport(StringBuilder sb, SceneObjectPart sop, bool showFull)
+        {
+            ConsoleDisplayList cdl = new ConsoleDisplayList();
+            cdl.AddRow("Name", sop.Name);
+            cdl.AddRow("Description", sop.Description);
+            cdl.AddRow("Local ID", sop.LocalId);
+            cdl.AddRow("UUID", sop.UUID);
+            cdl.AddRow("Location",  string.Format("{0} @ {1}", sop.AbsolutePosition, sop.ParentGroup.Scene.Name));
+            cdl.AddRow(
+                "Parent",
+                sop.IsRoot ? "Is Root" : string.Format("{0} {1}", sop.ParentGroup.Name, sop.ParentGroup.UUID));
+            cdl.AddRow("Link number", sop.LinkNum);
+            cdl.AddRow("Flags", sop.Flags);
+
+            object itemsOutput;
+            if (showFull)
+            {
+                StringBuilder itemsSb = new StringBuilder("\n");
+                itemsOutput = AddScenePartItemsReport(itemsSb, sop.Inventory).ToString();
+            }
+            else
+            {
+                itemsOutput = sop.Inventory.Count;
+            }
+
+
+            cdl.AddRow("Items", itemsOutput);
+
+            return sb.Append(cdl.ToString());
+        }
+
+        private StringBuilder AddScenePartItemsReport(StringBuilder sb, IEntityInventory inv)
+        {
+            ConsoleDisplayTable cdt = new ConsoleDisplayTable();
+            cdt.Indent = 2;
+
+            cdt.AddColumn("Name", 50);
+            cdt.AddColumn("Type", 12);
+            cdt.AddColumn("Running", 7);
+            cdt.AddColumn("Item UUID", 36);
+            cdt.AddColumn("Asset UUID", 36);
+
+            foreach (TaskInventoryItem item in inv.GetInventoryItems())
+            {
+                bool foundScriptInstance, scriptRunning;
+                foundScriptInstance
+                    = SceneObjectPartInventory.TryGetScriptInstanceRunning(m_scene, item, out scriptRunning);
+
+                cdt.AddRow(
+                    item.Name,
+                    ((InventoryType)item.InvType).ToString(),
+                    foundScriptInstance ? scriptRunning.ToString() : "n/a",
+                    item.ItemID.ToString(),
+                    item.AssetID.ToString());
+            }
+
+            return sb.Append(cdt.ToString());
         }
 
         private void HandleDeleteObject(string module, string[] cmd)
@@ -398,19 +681,24 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
         
                     break;
         
-                case "uuid":
-                    if (!UUID.TryParse(o, out match))
+                case "id":
+                    UUID uuid;
+                    uint localId;
+                    if (!ConsoleUtil.TryParseConsoleId(m_console, o, out uuid, out localId))
                         return;
 
                     requireConfirmation = false;
                     deletes = new List<SceneObjectGroup>();
-        
-                    m_scene.ForEachSOG(delegate (SceneObjectGroup g)
-                    {
-                        if (g.UUID == match && !g.IsAttachment)
-                            deletes.Add(g);
-                    });
-        
+
+                    SceneObjectGroup so;
+                    if (localId == ConsoleUtil.LocalIdNotFound)
+                        so = m_scene.GetSceneObjectGroup(uuid);
+                    else
+                        so = m_scene.GetSceneObjectGroup(localId);
+
+                    if (!so.IsAttachment)
+                       deletes.Add(so);
+
         //                if (deletes.Count == 0)
         //                    m_console.OutputFormat("No objects were found with uuid {0}", match);
         
@@ -450,6 +738,10 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
         
                     break;
 
+                case "pos":
+                    deletes = GetDeleteCandidatesByPos(module, cmd);
+                    break;
+
                 default:
                     m_console.OutputFormat("Unrecognized mode {0}", mode);
                     return;
@@ -464,7 +756,7 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
                     string.Format(
                         "Are you sure that you want to delete {0} objects from {1}",
                         deletes.Count, m_scene.RegionInfo.RegionName),
-                    "n");
+                    "y/N");
     
                 if (response.ToLower() != "y")
                 {
@@ -486,9 +778,6 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
 
         private List<SceneObjectGroup> GetDeleteCandidatesByName(string module, string[] cmdparams)
         {
-            if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
-                return null;
-
             bool useRegex = false;
             OptionSet options = new OptionSet().Add("regex", v=> useRegex = v != null );
 
@@ -522,5 +811,52 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
 
             return sceneObjects;
         }
+
+        /// <summary>
+        /// Get scene object delete candidates by position
+        /// </summary>
+        /// <param name='module'></param>
+        /// <param name='cmdparams'></param>
+        /// <returns>null if parsing failed on one of the arguments, otherwise a list of objects to delete.  If there
+        /// are no objects to delete then the list will be empty./returns>
+        private List<SceneObjectGroup> GetDeleteCandidatesByPos(string module, string[] cmdparams)
+        {
+            if (cmdparams.Length < 5)
+            {
+                m_console.OutputFormat("Usage: delete object pos <start-coord> to <end-coord>");
+                return null;
+            }
+
+            Vector3 startVector, endVector;
+
+            if (!TryParseVectorRange(cmdparams.Skip(3).Take(3), out startVector, out endVector))
+                return null;
+
+            return m_scene.GetSceneObjectGroups().FindAll(
+                so => !so.IsAttachment && Util.IsInsideBox(so.AbsolutePosition, startVector, endVector));
+        }
+
+        private bool TryParseVectorRange(IEnumerable<string> rawComponents, out Vector3 startVector, out Vector3 endVector)
+        {
+            string rawConsoleStartVector = rawComponents.Take(1).Single();
+
+            if (!ConsoleUtil.TryParseConsoleMinVector(rawConsoleStartVector, out startVector))
+            {
+                m_console.OutputFormat("Error: Start vector {0} does not have a valid format", rawConsoleStartVector);
+                endVector = Vector3.Zero;
+                
+                return false;
+            }
+
+            string rawConsoleEndVector = rawComponents.Skip(1).Take(1).Single();
+
+            if (!ConsoleUtil.TryParseConsoleMaxVector(rawConsoleEndVector, out endVector))
+            {
+                m_console.OutputFormat("Error: End vector {0} does not have a valid format", rawConsoleEndVector);
+                return false;
+            }
+
+            return true;
+        }
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/CoreModules/World/Sound/SoundModule.cs b/OpenSim/Region/CoreModules/World/Sound/SoundModule.cs
index 14c1a39..513a8f5 100644
--- a/OpenSim/Region/CoreModules/World/Sound/SoundModule.cs
+++ b/OpenSim/Region/CoreModules/World/Sound/SoundModule.cs
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) Contributors, http://opensimulator.org/
  * See CONTRIBUTORS.TXT for a full list of copyright holders.
  *
@@ -24,56 +24,110 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-
 using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Reflection;
+
 using Nini.Config;
 using OpenMetaverse;
+using log4net;
+using Mono.Addins;
+
 using OpenSim.Framework;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
-using System.Reflection;
-using log4net;
 
 namespace OpenSim.Region.CoreModules.World.Sound
 {
-    public class SoundModule : IRegionModule, ISoundModule
+    [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "SoundModule")]
+    public class SoundModule : INonSharedRegionModule, ISoundModule
     {
-//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
-        
-        protected Scene m_scene;
-        
-        public void Initialise(Scene scene, IConfigSource source)
+        private static readonly ILog m_log = LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        private Scene m_scene;
+
+        public bool Enabled { get; private set; }
+
+        public float MaxDistance { get; private set; }
+
+        #region INonSharedRegionModule
+
+        public void Initialise(IConfigSource configSource)
+        {
+            IConfig config = configSource.Configs["Sounds"];
+
+            if (config == null)
+            {
+                Enabled = true;
+                MaxDistance = 100.0f;
+            }
+            else
+            {
+                Enabled = config.GetString("Module", "OpenSim.Region.CoreModules.dll:SoundModule") ==
+                        Path.GetFileName(Assembly.GetExecutingAssembly().Location)
+                        + ":" + MethodBase.GetCurrentMethod().DeclaringType.Name;
+                MaxDistance = config.GetFloat("MaxDistance", 100.0f);
+            }
+        }
+
+        public void AddRegion(Scene scene) { }
+
+        public void RemoveRegion(Scene scene)
         {
+            m_scene.EventManager.OnClientLogin -= OnNewClient;
+        }
+
+        public void RegionLoaded(Scene scene)
+        {
+            if (!Enabled)
+                return;
+
             m_scene = scene;
-            
-            m_scene.EventManager.OnNewClient += OnNewClient;
-            
+            m_scene.EventManager.OnClientLogin += OnNewClient;
+
             m_scene.RegisterModuleInterface<ISoundModule>(this);
         }
-        
-        public void PostInitialise() {}
-        public void Close() {}
+
+        public void Close() { }
+
+        public Type ReplaceableInterface
+        {
+            get { return typeof(ISoundModule); }
+        }
+
         public string Name { get { return "Sound Module"; } }
-        public bool IsSharedModule { get { return false; } }
-        
+
+        #endregion
+
+        #region Event Handlers
+
         private void OnNewClient(IClientAPI client)
         {
             client.OnSoundTrigger += TriggerSound;
         }
-        
+
+        #endregion
+
+        #region ISoundModule
+
         public virtual void PlayAttachedSound(
             UUID soundID, UUID ownerID, UUID objectID, double gain, Vector3 position, byte flags, float radius)
         {
-            SceneObjectPart part = m_scene.GetSceneObjectPart(objectID);
-            if (part == null)
+            SceneObjectPart part;
+            if (!m_scene.TryGetSceneObjectPart(objectID, out part))
                 return;
 
             SceneObjectGroup grp = part.ParentGroup;
 
+            if (radius == 0)
+                radius = MaxDistance;
+
             m_scene.ForEachRootScenePresence(delegate(ScenePresence sp)
             {
                 double dis = Util.GetDistanceTo(sp.AbsolutePosition, position);
-                if (dis > 100.0) // Max audio distance
+                if (dis > MaxDistance) // Max audio distance
                     return;
 
                 if (grp.IsAttachment)
@@ -86,23 +140,21 @@ namespace OpenSim.Region.CoreModules.World.Sound
                 }
 
                 // Scale by distance
-                if (radius == 0)
-                    gain = (float)((double)gain * ((100.0 - dis) / 100.0));
-                else
-                    gain = (float)((double)gain * ((radius - dis) / radius));
+                double thisSpGain = gain * ((radius - dis) / radius);
 
-                sp.ControllingClient.SendPlayAttachedSound(soundID, objectID, ownerID, (float)gain, flags);
+                sp.ControllingClient.SendPlayAttachedSound(soundID, objectID,
+                        ownerID, (float)thisSpGain, flags);
             });
         }
-        
+
         public virtual void TriggerSound(
             UUID soundId, UUID ownerID, UUID objectID, UUID parentID, double gain, Vector3 position, UInt64 handle, float radius)
         {
-            SceneObjectPart part = m_scene.GetSceneObjectPart(objectID);
-            if (part == null)
+            SceneObjectPart part;
+            if (!m_scene.TryGetSceneObjectPart(objectID, out part))
             {
                 ScenePresence sp;
-                if (!m_scene.TryGetScenePresence(objectID, out sp))
+                if (!m_scene.TryGetScenePresence(ownerID, out sp))
                     return;
             }
             else
@@ -116,24 +168,207 @@ namespace OpenSim.Region.CoreModules.World.Sound
                 }
             }
 
+            if (radius == 0)
+                radius = MaxDistance;
+
             m_scene.ForEachRootScenePresence(delegate(ScenePresence sp)
             {
                 double dis = Util.GetDistanceTo(sp.AbsolutePosition, position);
 
-                if (dis > 100.0) // Max audio distance
+                if (dis > MaxDistance) // Max audio distance
                     return;
 
-                float thisSpGain;
-
                 // Scale by distance
-                if (radius == 0)
-                    thisSpGain = (float)((double)gain * ((100.0 - dis) / 100.0));
+                double thisSpGain = gain * ((radius - dis) / radius);
+
+                sp.ControllingClient.SendTriggeredSound(soundId, ownerID,
+                        objectID, parentID, handle, position,
+                        (float)thisSpGain);
+            });
+        }
+
+        public virtual void StopSound(UUID objectID)
+        {
+            SceneObjectPart m_host;
+            if (!m_scene.TryGetSceneObjectPart(objectID, out m_host))
+                return;
+
+            StopSound(m_host);
+        }
+
+        private static void StopSound(SceneObjectPart m_host)
+        {
+            m_host.AdjustSoundGain(0);
+            // Xantor 20080528: Clear prim data of sound instead
+            if (m_host.ParentGroup.LoopSoundSlavePrims.Contains(m_host))
+            {
+                if (m_host.ParentGroup.LoopSoundMasterPrim == m_host)
+                {
+                    foreach (SceneObjectPart part in m_host.ParentGroup.LoopSoundSlavePrims)
+                    {
+                        part.Sound = UUID.Zero;
+                        part.SoundFlags = 1 << 5;
+                        part.SoundRadius = 0;
+                        part.ScheduleFullUpdate();
+                        part.SendFullUpdateToAllClients();
+                    }
+                    m_host.ParentGroup.LoopSoundMasterPrim = null;
+                    m_host.ParentGroup.LoopSoundSlavePrims.Clear();
+                }
+                else
+                {
+                    m_host.Sound = UUID.Zero;
+                    m_host.SoundFlags = 1 << 5;
+                    m_host.SoundRadius = 0;
+                    m_host.ScheduleFullUpdate();
+                    m_host.SendFullUpdateToAllClients();
+                }
+            }
+            else
+            {
+                m_host.Sound = UUID.Zero;
+                m_host.SoundFlags = 1 << 5;
+                m_host.SoundRadius = 0;
+                m_host.ScheduleFullUpdate();
+                m_host.SendFullUpdateToAllClients();
+            }
+        }
+
+        public virtual void PreloadSound(UUID objectID, UUID soundID, float radius)
+        {
+            SceneObjectPart part;
+            if (soundID == UUID.Zero
+                    || !m_scene.TryGetSceneObjectPart(objectID, out part))
+            {
+                return;
+            }
+
+            if (radius == 0)
+                radius = MaxDistance;
+
+            m_scene.ForEachRootScenePresence(delegate(ScenePresence sp)
+            {
+                if (!(Util.GetDistanceTo(sp.AbsolutePosition, part.AbsolutePosition) >= MaxDistance))
+                    sp.ControllingClient.SendPreLoadSound(objectID, objectID, soundID);
+            });
+        }
+
+        // Xantor 20080528 we should do this differently.
+        // 1) apply the sound to the object
+        // 2) schedule full update
+        // just sending the sound out once doesn't work so well when other avatars come in view later on
+        // or when the prim gets moved, changed, sat on, whatever
+        // see large number of mantises (mantes?)
+        // 20080530 Updated to remove code duplication
+        // 20080530 Stop sound if there is one, otherwise volume only changes don't work
+        public void LoopSound(UUID objectID, UUID soundID,
+                double volume, double radius, bool isMaster)
+        {
+            SceneObjectPart m_host;
+            if (!m_scene.TryGetSceneObjectPart(objectID, out m_host))
+                return;
+
+            if (isMaster)
+                m_host.ParentGroup.LoopSoundMasterPrim = m_host;
+
+            if (m_host.Sound != UUID.Zero)
+                StopSound(m_host);
+
+            m_host.Sound = soundID;
+            m_host.SoundGain = volume;
+            m_host.SoundFlags = 1;      // looping
+            m_host.SoundRadius = radius;
+
+            m_host.ScheduleFullUpdate();
+            m_host.SendFullUpdateToAllClients();
+        }
+
+        public void SendSound(UUID objectID, UUID soundID, double volume,
+                bool triggered, byte flags, float radius, bool useMaster,
+                bool isMaster)
+        {
+            if (soundID == UUID.Zero)
+                return;
+
+            SceneObjectPart part;
+            if (!m_scene.TryGetSceneObjectPart(objectID, out part))
+                return;
+
+            volume = Util.Clip((float)volume, 0, 1);
+
+            UUID parentID = part.ParentGroup.UUID;
+
+            Vector3 position = part.AbsolutePosition; // region local
+            ulong regionHandle = m_scene.RegionInfo.RegionHandle;
+
+            if (useMaster)
+            {
+                if (isMaster)
+                {
+                    if (triggered)
+                        TriggerSound(soundID, part.OwnerID, part.UUID, parentID, volume, position, regionHandle, radius);
+                    else
+                        PlayAttachedSound(soundID, part.OwnerID, part.UUID, volume, position, flags, radius);
+                    part.ParentGroup.PlaySoundMasterPrim = part;
+                    if (triggered)
+                        TriggerSound(soundID, part.OwnerID, part.UUID, parentID, volume, position, regionHandle, radius);
+                    else
+                        PlayAttachedSound(soundID, part.OwnerID, part.UUID, volume, position, flags, radius);
+                    foreach (SceneObjectPart prim in part.ParentGroup.PlaySoundSlavePrims)
+                    {
+                        position = prim.AbsolutePosition; // region local
+                        if (triggered)
+                            TriggerSound(soundID, part.OwnerID, prim.UUID, parentID, volume, position, regionHandle, radius);
+                        else
+                            PlayAttachedSound(soundID, part.OwnerID, prim.UUID, volume, position, flags, radius);
+                    }
+                    part.ParentGroup.PlaySoundSlavePrims.Clear();
+                    part.ParentGroup.PlaySoundMasterPrim = null;
+                }
                 else
-                    thisSpGain = (float)((double)gain * ((radius - dis) / radius));
+                {
+                    part.ParentGroup.PlaySoundSlavePrims.Add(part);
+                }
+            }
+            else
+            {
+                if (triggered)
+                    TriggerSound(soundID, part.OwnerID, part.UUID, parentID, volume, position, regionHandle, radius);
+                else
+                    PlayAttachedSound(soundID, part.OwnerID, part.UUID, volume, position, flags, radius);
+            }
+        }
 
-                sp.ControllingClient.SendTriggeredSound(
-                    soundId, ownerID, objectID, parentID, handle, position, thisSpGain);
+        public void TriggerSoundLimited(UUID objectID, UUID sound,
+                double volume, Vector3 min, Vector3 max)
+        {
+            if (sound == UUID.Zero)
+                return;
+
+            SceneObjectPart part;
+            if (!m_scene.TryGetSceneObjectPart(objectID, out part))
+                return;
+
+            m_scene.ForEachRootScenePresence(delegate(ScenePresence sp)
+            {
+                double dis = Util.GetDistanceTo(sp.AbsolutePosition,
+                        part.AbsolutePosition);
+
+                if (dis > MaxDistance) // Max audio distance
+                    return;
+                else if (!Util.IsInsideBox(sp.AbsolutePosition, min, max))
+                    return;
+
+                // Scale by distance
+                double thisSpGain = volume * ((MaxDistance - dis) / MaxDistance);
+
+                sp.ControllingClient.SendTriggeredSound(sound, part.OwnerID,
+                        part.UUID, part.ParentGroup.UUID,
+                        m_scene.RegionInfo.RegionHandle,
+                        part.AbsolutePosition, (float)thisSpGain);
             });
         }
+
+        #endregion
     }
 }
diff --git a/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs b/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs
index 402b9fb..d99567c 100644
--- a/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs
+++ b/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs
@@ -414,6 +414,7 @@ namespace OpenSim.Region.CoreModules.World.Terrain
         private void LoadPlugins()
         {
             m_plugineffects = new Dictionary<string, ITerrainEffect>();
+            LoadPlugins(Assembly.GetCallingAssembly());
             string plugineffectsPath = "Terrain";
             
             // Load the files in the Terrain/ dir
@@ -427,34 +428,39 @@ namespace OpenSim.Region.CoreModules.World.Terrain
                 try
                 {
                     Assembly library = Assembly.LoadFrom(file);
-                    foreach (Type pluginType in library.GetTypes())
-                    {
-                        try
-                        {
-                            if (pluginType.IsAbstract || pluginType.IsNotPublic)
-                                continue;
+                    LoadPlugins(library);
+                }
+                catch (BadImageFormatException)
+                {
+                }
+            }
+        }
 
-                            string typeName = pluginType.Name;
+        private void LoadPlugins(Assembly library)
+        {
+            foreach (Type pluginType in library.GetTypes())
+            {
+                try
+                {
+                    if (pluginType.IsAbstract || pluginType.IsNotPublic)
+                        continue;
 
-                            if (pluginType.GetInterface("ITerrainEffect", false) != null)
-                            {
-                                ITerrainEffect terEffect = (ITerrainEffect) Activator.CreateInstance(library.GetType(pluginType.ToString()));
+                    string typeName = pluginType.Name;
 
-                                InstallPlugin(typeName, terEffect);
-                            }
-                            else if (pluginType.GetInterface("ITerrainLoader", false) != null)
-                            {
-                                ITerrainLoader terLoader = (ITerrainLoader) Activator.CreateInstance(library.GetType(pluginType.ToString()));
-                                m_loaders[terLoader.FileExtension] = terLoader;
-                                m_log.Info("L ... " + typeName);
-                            }
-                        }
-                        catch (AmbiguousMatchException)
-                        {
-                        }
+                    if (pluginType.GetInterface("ITerrainEffect", false) != null)
+                    {
+                        ITerrainEffect terEffect = (ITerrainEffect)Activator.CreateInstance(library.GetType(pluginType.ToString()));
+
+                        InstallPlugin(typeName, terEffect);
+                    }
+                    else if (pluginType.GetInterface("ITerrainLoader", false) != null)
+                    {
+                        ITerrainLoader terLoader = (ITerrainLoader)Activator.CreateInstance(library.GetType(pluginType.ToString()));
+                        m_loaders[terLoader.FileExtension] = terLoader;
+                        m_log.Info("L ... " + typeName);
                     }
                 }
-                catch (BadImageFormatException)
+                catch (AmbiguousMatchException)
                 {
                 }
             }
@@ -1178,7 +1184,8 @@ namespace OpenSim.Region.CoreModules.World.Terrain
 
         private void InterfaceRunPluginEffect(Object[] args)
         {
-            if ((string) args[0] == "list")
+            string firstArg = (string)args[0];
+            if (firstArg == "list")
             {
                 m_log.Info("List of loaded plugins");
                 foreach (KeyValuePair<string, ITerrainEffect> kvp in m_plugineffects)
@@ -1187,14 +1194,14 @@ namespace OpenSim.Region.CoreModules.World.Terrain
                 }
                 return;
             }
-            if ((string) args[0] == "reload")
+            if (firstArg == "reload")
             {
                 LoadPlugins();
                 return;
             }
-            if (m_plugineffects.ContainsKey((string) args[0]))
+            if (m_plugineffects.ContainsKey(firstArg))
             {
-                m_plugineffects[(string) args[0]].RunEffect(m_channel);
+                m_plugineffects[firstArg].RunEffect(m_channel);
                 CheckForTerrainUpdates();
             }
             else
diff --git a/OpenSim/Region/CoreModules/World/Warp3DMap/Warp3DImageModule.cs b/OpenSim/Region/CoreModules/World/Warp3DMap/Warp3DImageModule.cs
index 3c48d07..33f6c3f 100644
--- a/OpenSim/Region/CoreModules/World/Warp3DMap/Warp3DImageModule.cs
+++ b/OpenSim/Region/CoreModules/World/Warp3DMap/Warp3DImageModule.cs
@@ -222,6 +222,13 @@ namespace OpenSim.Region.CoreModules.World.Warp3DMap
                     bitmap = ImageUtils.ResizeImage(origBitmap, viewport.Width, viewport.Height);
             }
 
+            // XXX: It shouldn't really be necesary to force a GC here as one should occur anyway pretty shortly
+            // afterwards.  It's generally regarded as a bad idea to manually GC.  If Warp3D is using lots of memory
+            // then this may be some issue with the Warp3D code itself, though it's also quite possible that generating
+            // this map tile simply takes a lot of memory.
+            GC.Collect();
+            m_log.Debug("[WARP 3D IMAGE MODULE]: GC.Collect()");
+
             return bitmap;
         }
 
diff --git a/OpenSim/Region/Framework/Interfaces/IAttachmentsModule.cs b/OpenSim/Region/Framework/Interfaces/IAttachmentsModule.cs
index 90a13a7..d781eae 100644
--- a/OpenSim/Region/Framework/Interfaces/IAttachmentsModule.cs
+++ b/OpenSim/Region/Framework/Interfaces/IAttachmentsModule.cs
@@ -114,6 +114,15 @@ namespace OpenSim.Region.Framework.Interfaces
         void DetachSingleAttachmentToGround(IScenePresence sp, uint objectLocalID);
 
         /// <summary>
+        /// Detach the given item to the ground at the specified coordinates & rotation
+        /// </summary>
+        /// <param name="sp"></param>
+        /// <param name="objectLocalID"></param>
+        /// <param name="absolutePos"></param>
+        /// <param name="absoluteRot"></param>
+        void DetachSingleAttachmentToGround(IScenePresence sp, uint objectLocalID, Vector3 absolutePos, Quaternion absoluteRot);
+
+        /// <summary>
         /// Detach the given attachment so that it remains in the user's inventory.
         /// </summary>
         /// <param name="sp">/param>
diff --git a/OpenSim/Region/Framework/Interfaces/IDynamicTextureManager.cs b/OpenSim/Region/Framework/Interfaces/IDynamicTextureManager.cs
index 8954513..6df5cc2 100644
--- a/OpenSim/Region/Framework/Interfaces/IDynamicTextureManager.cs
+++ b/OpenSim/Region/Framework/Interfaces/IDynamicTextureManager.cs
@@ -25,6 +25,8 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+using System;
+using System.Drawing;
 using System.IO;
 using OpenMetaverse;
 
@@ -33,7 +35,14 @@ namespace OpenSim.Region.Framework.Interfaces
     public interface IDynamicTextureManager
     {
         void RegisterRender(string handleType, IDynamicTextureRender render);
-        void ReturnData(UUID id, byte[] data);
+
+        /// <summary>
+        /// Used by IDynamicTextureRender implementations to return renders
+        /// </summary>
+        /// <param name='id'></param>
+        /// <param name='data'></param>
+        /// <param name='isReuseable'></param>
+        void ReturnData(UUID id, IDynamicTexture texture);
 
         UUID AddDynamicTextureURL(UUID simID, UUID primID, string contentType, string url, string extraParams,
                                     int updateTimer);
@@ -113,11 +122,65 @@ namespace OpenSim.Region.Framework.Interfaces
         string GetName();
         string GetContentType();
         bool SupportsAsynchronous();
-        byte[] ConvertUrl(string url, string extraParams);
-        byte[] ConvertStream(Stream data, string extraParams);
+
+//        /// <summary>
+//        /// Return true if converting the input body and extra params data will always result in the same byte[] array
+//        /// </summary>
+//        /// <remarks>
+//        /// This method allows the caller to use a previously generated asset if it has one.
+//        /// </remarks>
+//        /// <returns></returns>
+//        /// <param name='bodyData'></param>
+//        /// <param name='extraParams'></param>
+//        bool AlwaysIdenticalConversion(string bodyData, string extraParams);
+
+        IDynamicTexture ConvertUrl(string url, string extraParams);
+        IDynamicTexture ConvertData(string bodyData, string extraParams);
+
         bool AsyncConvertUrl(UUID id, string url, string extraParams);
         bool AsyncConvertData(UUID id, string bodyData, string extraParams);
+
         void GetDrawStringSize(string text, string fontName, int fontSize, 
                                out double xSize, out double ySize);
     }
+
+    public interface IDynamicTexture
+    {
+        /// <summary>
+        /// Input commands used to generate this data.
+        /// </summary>
+        /// <remarks>
+        /// Null if input commands were not used.
+        /// </remarks>
+        string InputCommands { get; }
+
+        /// <summary>
+        /// Uri used to generate this data.
+        /// </summary>
+        /// <remarks>
+        /// Null if a uri was not used.
+        /// </remarks>
+        Uri InputUri { get; }
+
+        /// <summary>
+        /// Extra input params used to generate this data.
+        /// </summary>
+        string InputParams { get; }
+
+        /// <summary>
+        /// Texture data.
+        /// </summary>
+        byte[] Data { get; }
+
+        /// <summary>
+        /// Size of texture.
+        /// </summary>
+        Size Size { get; }
+
+        /// <summary>
+        /// Signal whether the texture is reuseable (i.e. whether the same input data will always generate the same
+        /// texture).
+        /// </summary>
+        bool IsReuseable { get; }
+    }
 }
diff --git a/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs b/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs
index 4274cbe..8028d87 100644
--- a/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs
+++ b/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs
@@ -152,6 +152,19 @@ namespace OpenSim.Region.Framework.Interfaces
         void StopScriptInstance(UUID itemId);
 
         /// <summary>
+        /// Try to get the script running status.
+        /// </summary>
+        /// <returns>
+        /// Returns true if a script for the item was found in one of the simulator's script engines.  In this case,
+        /// the running parameter will reflect the running status.
+        /// Returns false if the item could not be found, if the item is not a script or if a script instance for the
+        /// item was not found in any of the script engines.  In this case, running status is irrelevant.
+        /// </returns>
+        /// <param name='itemId'></param>
+        /// <param name='running'></param>
+        bool TryGetScriptInstanceRunning(UUID itemId, out bool running);
+
+        /// <summary>
         /// Add an item to this entity's inventory.  If an item with the same name already exists, then an alternative
         /// name is chosen.
         /// </summary>
@@ -270,17 +283,25 @@ namespace OpenSim.Region.Framework.Interfaces
         void ApplyGodPermissions(uint perms);
 
         /// <summary>
+        /// Number of items in this inventory.
+        /// </summary>
+        int Count { get; }
+
+        /// <summary>
         /// Returns true if this inventory contains any scripts
         /// </summary></returns>
         bool ContainsScripts();
 
         /// <summary>
-        /// Returns the count of scripts contained
-        /// </summary></returns>
+        /// Number of scripts in this inventory.
+        /// </summary>
+        /// <remarks>
+        /// Includes both running and non running scripts.
+        /// </remarks>
         int ScriptCount();
 
         /// <summary>
-        /// Returns the count of running scripts contained
+        /// Number of running scripts in this inventory.
         /// </summary></returns>
         int RunningScriptCount();
 
diff --git a/OpenSim/Region/Framework/Interfaces/IEstateModule.cs b/OpenSim/Region/Framework/Interfaces/IEstateModule.cs
index ca2ad94..292efa4 100644
--- a/OpenSim/Region/Framework/Interfaces/IEstateModule.cs
+++ b/OpenSim/Region/Framework/Interfaces/IEstateModule.cs
@@ -46,6 +46,10 @@ namespace OpenSim.Region.Framework.Interfaces
         /// </summary>
         void sendRegionHandshakeToAll();
         void TriggerEstateInfoChange();
+
+        /// <summary>
+        /// Fires the OnRegionInfoChange event.
+        /// </summary>
         void TriggerRegionInfoChange();
 
         void setEstateTerrainBaseTexture(int level, UUID texture);
diff --git a/OpenSim/Region/Framework/Interfaces/IJsonStoreModule.cs b/OpenSim/Region/Framework/Interfaces/IJsonStoreModule.cs
index baac6e8..da39e95 100644
--- a/OpenSim/Region/Framework/Interfaces/IJsonStoreModule.cs
+++ b/OpenSim/Region/Framework/Interfaces/IJsonStoreModule.cs
@@ -35,7 +35,7 @@ namespace OpenSim.Region.Framework.Interfaces
 
     public interface IJsonStoreModule
     {
-        bool CreateStore(string value, out UUID result);
+        bool CreateStore(string value, ref UUID result);
         bool DestroyStore(UUID storeID);
         bool TestPath(UUID storeID, string path, bool useJson);
         bool SetValue(UUID storeID, string path, string value, bool useJson);
diff --git a/OpenSim/Region/Framework/Interfaces/IScriptModuleComms.cs b/OpenSim/Region/Framework/Interfaces/IScriptModuleComms.cs
index a76ffde..70ff954 100644
--- a/OpenSim/Region/Framework/Interfaces/IScriptModuleComms.cs
+++ b/OpenSim/Region/Framework/Interfaces/IScriptModuleComms.cs
@@ -47,9 +47,46 @@ namespace OpenSim.Region.Framework.Interfaces
         /// </summary>
         event ScriptCommand OnScriptCommand;
 
+        /// <summary>
+        /// Register an instance method as a script call by method name
+        /// </summary>
+        /// <param name="target"></param>
+        /// <param name="method"></param>
         void RegisterScriptInvocation(object target, string method);
+
+        /// <summary>
+        /// Register a static or instance method as a script call by method info
+        /// </summary>
+        /// <param name="target">If target is a Type object, will assume method is static.</param>
+        /// <param name="method"></param>
         void RegisterScriptInvocation(object target, MethodInfo method);
+
+        /// <summary>
+        /// Register one or more instance methods as script calls by method name
+        /// </summary>
+        /// <param name="target"></param>
+        /// <param name="methods"></param>
         void RegisterScriptInvocation(object target, string[] methods);
+
+        /// <summary>
+        /// Register one or more static methods as script calls by method name
+        /// </summary>
+        /// <param name="target"></param>
+        /// <param name="methods"></param>
+        void RegisterScriptInvocation(Type target, string[] methods);
+
+        /// <summary>
+        /// Automatically register script invocations by checking for methods
+        /// with <see cref="ScriptInvocationAttribute"/>. Should only check
+        /// public methods.
+        /// </summary>
+        /// <param name="target"></param>
+        void RegisterScriptInvocations(IRegionModuleBase target);
+
+        /// <summary>
+        /// Returns an array of all registered script calls
+        /// </summary>
+        /// <returns></returns>
         Delegate[] GetScriptInvocationList();
 
         Delegate LookupScriptInvocation(string fname);
@@ -68,12 +105,44 @@ namespace OpenSim.Region.Framework.Interfaces
         /// <param name="key"></param>
         void DispatchReply(UUID scriptId, int code, string text, string key);
 
-        /// For constants
+        /// <summary>
+        /// Operation to for a region module to register a constant to be used
+        /// by the script engine
+        /// </summary>
+        /// <param name="cname">
+        /// The name of the constant. LSL convention is for constant names to
+        /// be uppercase.
+        /// </param>
+        /// <param name="value">
+        /// The value of the constant. Should be of a type that can be
+        /// converted to one of <see cref="OpenSim.Region.ScriptEngine.Shared.LSL_Types"/>
+        /// </param>
         void RegisterConstant(string cname, object value);
+
+        /// <summary>
+        /// Automatically register all constants on a region module by
+        /// checking for fields with <see cref="ScriptConstantAttribute"/>.
+        /// </summary>
+        /// <param name="target"></param>
+        void RegisterConstants(IRegionModuleBase target);
+
+        /// <summary>
+        /// Operation to check for a registered constant
+        /// </summary>
+        /// <param name="cname">Name of constant</param>
+        /// <returns>Value of constant or null if none found.</returns>
         object LookupModConstant(string cname);
         Dictionary<string, object> GetConstants();
 
         // For use ONLY by the script API
         void RaiseEvent(UUID script, string id, string module, string command, string key);
     }
+
+    [AttributeUsage(AttributeTargets.Method)]
+    public class ScriptInvocationAttribute : Attribute
+    { }
+
+    [AttributeUsage(AttributeTargets.Field)]
+    public class ScriptConstantAttribute : Attribute
+    { }
 }
diff --git a/OpenSim/Region/Framework/Interfaces/ISoundModule.cs b/OpenSim/Region/Framework/Interfaces/ISoundModule.cs
index 6117a80..68af492 100644
--- a/OpenSim/Region/Framework/Interfaces/ISoundModule.cs
+++ b/OpenSim/Region/Framework/Interfaces/ISoundModule.cs
@@ -32,9 +32,96 @@ namespace OpenSim.Region.Framework.Interfaces
 {
     public interface ISoundModule
     {
-        void PlayAttachedSound(UUID soundID, UUID ownerID, UUID objectID, double gain, Vector3 position, byte flags, float radius);
-        
+        /// <summary>
+        /// Maximum distance between a sound source and a recipient.
+        /// </summary>
+        float MaxDistance { get; }
+
+        /// <summary>
+        /// Play a sound from an object.
+        /// </summary>
+        /// <param name="soundID">Sound asset ID</param>
+        /// <param name="ownerID">Sound source owner</param>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="gain">Sound volume</param>
+        /// <param name="position">Sound source position</param>
+        /// <param name="flags">Sound flags</param>
+        /// <param name="radius">
+        /// Radius used to affect gain over distance.
+        /// </param>
+        void PlayAttachedSound(UUID soundID, UUID ownerID, UUID objectID,
+                double gain, Vector3 position, byte flags, float radius);
+
+        /// <summary>
+        /// Trigger a sound in the scene.
+        /// </summary>
+        /// <param name="soundId">Sound asset ID</param>
+        /// <param name="ownerID">Sound source owner</param>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="parentID">Sound source parent.</param>
+        /// <param name="gain">Sound volume</param>
+        /// <param name="position">Sound source position</param>
+        /// <param name="handle"></param>
+        /// <param name="radius">
+        /// Radius used to affect gain over distance.
+        /// </param>
         void TriggerSound(
-            UUID soundId, UUID ownerID, UUID objectID, UUID parentID, double gain, Vector3 position, UInt64 handle, float radius);
+                UUID soundId, UUID ownerID, UUID objectID, UUID parentID,
+                double gain, Vector3 position, UInt64 handle, float radius);
+
+        /// <summary>
+        /// Stop sounds eminating from an object.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        void StopSound(UUID objectID);
+
+        /// <summary>
+        /// Preload sound to viewers within range.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="soundID">Sound asset ID</param>
+        /// <param name="radius">
+        /// Radius used to determine which viewers should preload the sound.
+        /// </param>
+        void PreloadSound(UUID objectID, UUID soundID, float radius);
+
+        /// <summary>
+        /// Loop specified sound at specified volume with specified radius,
+        /// optionally declaring object as new sync master.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="soundID">Sound asset ID</param>
+        /// <param name="gain">Sound volume</param>
+        /// <param name="radius">Sound radius</param>
+        /// <param name="isMaster">Set object to sync master if true</param>
+        void LoopSound(UUID objectID, UUID soundID, double gain,
+                double radius, bool isMaster);
+
+        /// <summary>
+        /// Trigger or play an attached sound in this part's inventory.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="sound">Sound asset ID</param>
+        /// <param name="volume">Sound volume</param>
+        /// <param name="triggered">Triggered or not.</param>
+        /// <param name="flags"></param>
+        /// <param name="radius">Sound radius</param>
+        /// <param name="useMaster">Play using sound master</param>
+        /// <param name="isMaster">Play as sound master</param>
+        void SendSound(UUID objectID, UUID sound, double volume,
+                bool triggered, byte flags, float radius, bool useMaster,
+                bool isMaster);
+
+        /// <summary>
+        /// Trigger a sound to be played to all agents within an axis-aligned
+        /// bounding box.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="sound">Sound asset ID</param>
+        /// <param name="volume">Sound volume</param>
+        /// <param name="min">AABB bottom south-west corner</param>
+        /// <param name="max">AABB top north-east corner</param>
+        void TriggerSoundLimited(UUID objectID, UUID sound, double volume,
+                Vector3 min, Vector3 max);
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/Framework/Interfaces/IUrlModule.cs b/OpenSim/Region/Framework/Interfaces/IUrlModule.cs
index 457444c..79e9f9d 100644
--- a/OpenSim/Region/Framework/Interfaces/IUrlModule.cs
+++ b/OpenSim/Region/Framework/Interfaces/IUrlModule.cs
@@ -39,6 +39,8 @@ namespace OpenSim.Region.Framework.Interfaces
         UUID RequestSecureURL(IScriptModule engine, SceneObjectPart host, UUID itemID);
         void ReleaseURL(string url);
         void HttpResponse(UUID request, int status, string body);
+        void HttpContentType(UUID request, string type);
+        
         string GetHttpHeader(UUID request, string header);
         int GetFreeUrls();
 
diff --git a/OpenSim/Region/Framework/Interfaces/IUserManagement.cs b/OpenSim/Region/Framework/Interfaces/IUserManagement.cs
index 24cd069..f8088c3 100644
--- a/OpenSim/Region/Framework/Interfaces/IUserManagement.cs
+++ b/OpenSim/Region/Framework/Interfaces/IUserManagement.cs
@@ -1,4 +1,31 @@
-using System;
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
 using System.Collections.Generic;
 
 using OpenMetaverse;
diff --git a/OpenSim/Region/Framework/Interfaces/IWorldComm.cs b/OpenSim/Region/Framework/Interfaces/IWorldComm.cs
index e8e375e..20e0199 100644
--- a/OpenSim/Region/Framework/Interfaces/IWorldComm.cs
+++ b/OpenSim/Region/Framework/Interfaces/IWorldComm.cs
@@ -45,6 +45,13 @@ namespace OpenSim.Region.Framework.Interfaces
         void Deactivate();
         void Activate();
         UUID GetID();
+
+        /// <summary>
+        /// Bitfield indicating which strings should be processed as regex.
+        /// 1 corresponds to IWorldCommListenerInfo::GetName()
+        /// 2 corresponds to IWorldCommListenerInfo::GetMessage()
+        /// </summary>
+        int RegexBitfield { get; }
     }
 
     public interface IWorldComm
@@ -60,7 +67,7 @@ namespace OpenSim.Region.Framework.Interfaces
         /// the script during 'peek' time. Parameter hostID is needed to
         /// determine the position of the script.
         /// </summary>
-        /// <param name="localID">localID of the script engine</param>
+        /// <param name="LocalID">localID of the script engine</param>
         /// <param name="itemID">UUID of the script engine</param>
         /// <param name="hostID">UUID of the SceneObjectPart</param>
         /// <param name="channel">channel to listen on</param>
@@ -70,6 +77,23 @@ namespace OpenSim.Region.Framework.Interfaces
         /// <returns>number of the scripts handle</returns>
         int Listen(uint LocalID, UUID itemID, UUID hostID, int channel, string name, UUID id, string msg);
 
+         /// <summary>
+        /// Create a listen event callback with the specified filters.
+        /// The parameters localID,itemID are needed to uniquely identify
+        /// the script during 'peek' time. Parameter hostID is needed to
+        /// determine the position of the script.
+        /// </summary>
+        /// <param name="LocalID">localID of the script engine</param>
+        /// <param name="itemID">UUID of the script engine</param>
+        /// <param name="hostID">UUID of the SceneObjectPart</param>
+        /// <param name="channel">channel to listen on</param>
+        /// <param name="name">name to filter on</param>
+        /// <param name="id">key to filter on (user given, could be totally faked)</param>
+        /// <param name="msg">msg to filter on</param>
+        /// <param name="regexBitfield">Bitfield indicating which strings should be processed as regex.</param>
+        /// <returns>number of the scripts handle</returns>
+        int Listen(uint LocalID, UUID itemID, UUID hostID, int channel, string name, UUID id, string msg, int regexBitfield);
+
         /// <summary>
         /// This method scans over the objects which registered an interest in listen callbacks.
         /// For everyone it finds, it checks if it fits the given filter. If it does,  then
diff --git a/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs b/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs
index ad421ee..65ae445 100644
--- a/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs
+++ b/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs
@@ -41,6 +41,7 @@ namespace OpenSim.Region.Framework.Scenes.Animation
     {
 //        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
+        private OpenSim.Framework.Animation m_implicitDefaultAnimation = new OpenSim.Framework.Animation();
         private OpenSim.Framework.Animation m_defaultAnimation = new OpenSim.Framework.Animation();
         private List<OpenSim.Framework.Animation> m_animations = new List<OpenSim.Framework.Animation>();
 
@@ -49,6 +50,11 @@ namespace OpenSim.Region.Framework.Scenes.Animation
             get { return m_defaultAnimation; } 
         }
         
+        public OpenSim.Framework.Animation ImplicitDefaultAnimation 
+        {
+            get { return m_implicitDefaultAnimation; } 
+        }
+        
         public AnimationSet()
         {
             ResetDefaultAnimation();
@@ -119,11 +125,18 @@ namespace OpenSim.Region.Framework.Scenes.Animation
             if (m_defaultAnimation.AnimID != animID)
             {
                 m_defaultAnimation = new OpenSim.Framework.Animation(animID, sequenceNum, objectID);
+                m_implicitDefaultAnimation = m_defaultAnimation;
                 return true;
             }
             return false;
         }
 
+        // Called from serialization only
+        public void SetImplicitDefaultAnimation(UUID animID, int sequenceNum, UUID objectID)
+        {
+            m_implicitDefaultAnimation = new OpenSim.Framework.Animation(animID, sequenceNum, objectID);
+        }
+
         protected bool ResetDefaultAnimation()
         {
             return TrySetDefaultAnimation("STAND", 1, UUID.Zero);
diff --git a/OpenSim/Region/Framework/Scenes/EventManager.cs b/OpenSim/Region/Framework/Scenes/EventManager.cs
index 7916c42..8691b91 100644
--- a/OpenSim/Region/Framework/Scenes/EventManager.cs
+++ b/OpenSim/Region/Framework/Scenes/EventManager.cs
@@ -47,30 +47,75 @@ namespace OpenSim.Region.Framework.Scenes
         
         public delegate void OnFrameDelegate();
 
+        /// <summary>
+        /// Triggered on each sim frame.
+        /// </summary>
+        /// <remarks>
+        /// This gets triggered in <see cref="OpenSim.Region.Framework.Scenes.Scene.Update"/>
+        /// Core uses it for things like Sun, Wind & Clouds
+        /// The MRM module also uses it.
+        /// </remarks>
         public event OnFrameDelegate OnFrame;
 
         public delegate void ClientMovement(ScenePresence client);
 
+        /// <summary>
+        /// Trigerred when an agent moves.
+        /// </summary>
+        /// <remarks>
+        /// This gets triggered in <see cref="OpenSim.Region.Framework.Scenes.ScenePresence.HandleAgentUpdate"/>
+        /// prior to <see cref="OpenSim.Region.Framework.Scenes.ScenePresence.TriggerScenePresenceUpdated"/>
+        /// </remarks>
         public event ClientMovement OnClientMovement;
 
         public delegate void OnTerrainTaintedDelegate();
 
+        /// <summary>
+        /// Triggered if the terrain has been edited
+        /// </summary>
+        /// <remarks>
+        /// This gets triggered in <see cref="OpenSim.Region.CoreModules.World.Terrain.CheckForTerrainUpdates"/>
+        /// after it determines that an update has been made.
+        /// </remarks>
         public event OnTerrainTaintedDelegate OnTerrainTainted;
 
         public delegate void OnTerrainTickDelegate();
 
-        public delegate void OnTerrainUpdateDelegate();
-
+        /// <summary>
+        /// Triggered if the terrain has been edited
+        /// </summary>
+        /// <remarks>
+        /// This gets triggered in <see cref="OpenSim.Region.Framework.Scenes.Scene.UpdateTerrain"/>
+        /// but is used by core solely to update the physics engine.
+        /// </remarks>
         public event OnTerrainTickDelegate OnTerrainTick;
 
+        public delegate void OnTerrainUpdateDelegate();
+
         public event OnTerrainUpdateDelegate OnTerrainUpdate;
 
         public delegate void OnBackupDelegate(ISimulationDataService datastore, bool forceBackup);
 
+        /// <summary>
+        /// Triggered when a region is backed up/persisted to storage
+        /// </summary>
+        /// <remarks>
+        /// This gets triggered in <see cref="OpenSim.Region.Framework.Scenes.Scene.Backup"/>
+        /// and is fired before the persistence occurs.
+        /// </remarks>
         public event OnBackupDelegate OnBackup;
 
         public delegate void OnClientConnectCoreDelegate(IClientCore client);
 
+        /// <summary>
+        /// Triggered when a new client connects to the scene.
+        /// </summary>
+        /// <remarks>
+        /// This gets triggered in <see cref="TriggerOnNewClient"/>,
+        /// which checks if an instance of <see cref="OpenSim.Framework.IClientAPI"/>
+        /// also implements <see cref="OpenSim.Framework.Client.IClientCore"/> and as such,
+        /// is not triggered by <see cref="OpenSim.Region.OptionalModules.World.NPC">NPCs</see>.
+        /// </remarks>
         public event OnClientConnectCoreDelegate OnClientConnect;
 
         public delegate void OnNewClientDelegate(IClientAPI client);
@@ -80,33 +125,96 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         /// <remarks>
         /// This is triggered for both child and root agent client connections.
+        ///
         /// Triggered before OnClientLogin.
+        ///
+        /// This is triggered under per-agent lock.  So if you want to perform any long-running operations, please
+        /// do this on a separate thread.
         /// </remarks>
         public event OnNewClientDelegate OnNewClient;
 
         /// <summary>
         /// Fired if the client entering this sim is doing so as a new login
         /// </summary>
+        /// <remarks>
+        /// This is triggered under per-agent lock.  So if you want to perform any long-running operations, please
+        /// do this on a separate thread.
+        /// </remarks>
         public event Action<IClientAPI> OnClientLogin;
 
         public delegate void OnNewPresenceDelegate(ScenePresence presence);
 
+        /// <summary>
+        /// Triggered when a new presence is added to the scene
+        /// </summary>
+        /// <remarks>
+        /// Triggered in <see cref="OpenSim.Region.Framework.Scenes.Scene.AddNewClient"/> which is used by both
+        /// <see cref="OpenSim.Framework.PresenceType.User">users</see> and <see cref="OpenSim.Framework.PresenceType.Npc">NPCs</see>
+        /// </remarks>
         public event OnNewPresenceDelegate OnNewPresence;
 
         public delegate void OnRemovePresenceDelegate(UUID agentId);
 
+        /// <summary>
+        /// Triggered when a presence is removed from the scene
+        /// </summary>
+        /// <remarks>
+        /// Triggered in <see cref="OpenSim.Region.Framework.Scenes.Scene.AddNewClient"/> which is used by both
+        /// <see cref="OpenSim.Framework.PresenceType.User">users</see> and <see cref="OpenSim.Framework.PresenceType.Npc">NPCs</see>
+        /// 
+        /// Triggered under per-agent lock.  So if you want to perform any long-running operations, please
+        /// do this on a separate thread.
+        /// </remarks>
         public event OnRemovePresenceDelegate OnRemovePresence;
 
         public delegate void OnParcelPrimCountUpdateDelegate();
 
+        /// <summary>
+        /// Triggered whenever the prim count may have been altered, or prior
+        /// to an action that requires the current prim count to be accurate.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerParcelPrimCountUpdate"/> in
+        /// <see cref="OpenSim.OpenSimBase.CreateRegion"/>,
+        /// <see cref="OpenSim.Region.CoreModules.World.Land.LandManagementModule.EventManagerOnRequestParcelPrimCountUpdate"/>,
+        /// <see cref="OpenSim.Region.CoreModules.World.Land.LandManagementModule.ClientOnParcelObjectOwnerRequest"/>,
+        /// <see cref="OpenSim.Region.CoreModules.World.Land.LandObject.GetPrimsFree"/>,
+        /// <see cref="OpenSim.Region.CoreModules.World.Land.LandObject.UpdateLandSold"/>,
+        /// <see cref="OpenSim.Region.CoreModules.World.Land.LandObject.DeedToGroup"/>,
+        /// <see cref="OpenSim.Region.CoreModules.World.Land.LandObject.SendLandUpdateToClient"/>
+        /// </remarks>
         public event OnParcelPrimCountUpdateDelegate OnParcelPrimCountUpdate;
 
         public delegate void OnParcelPrimCountAddDelegate(SceneObjectGroup obj);
 
+        /// <summary>
+        /// Triggered in response to <see cref="OnParcelPrimCountUpdate"/> for
+        /// objects that actually contribute to parcel prim count.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerParcelPrimCountAdd"/> in
+        /// <see cref="OpenSim.Region.CoreModules.World.Land.LandManagementModule.EventManagerOnParcelPrimCountUpdate"/>
+        /// </remarks>
         public event OnParcelPrimCountAddDelegate OnParcelPrimCountAdd;
 
         public delegate void OnPluginConsoleDelegate(string[] args);
 
+        /// <summary>
+        /// Triggered after <see cref="OpenSim.IApplicationPlugin.PostInitialise"/>
+        /// has been called for all <see cref="OpenSim.IApplicationPlugin"/>
+        /// loaded via <see cref="OpenSim.OpenSimBase.LoadPlugins"/>.
+        /// Handlers for this event are typically used to parse the arguments
+        /// from <see cref="OnPluginConsoleDelegate"/> in order to process or
+        /// filter the arguments and pass them onto <see cref="OpenSim.Region.CoreModules.Framework.InterfaceCommander.Commander.ProcessConsoleCommand"/>
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerOnPluginConsole"/> in
+        /// <see cref="Scene.SendCommandToPlugins"/> via
+        /// <see cref="SceneManager.SendCommandToPluginModules"/> via
+        /// <see cref="OpenSim.OpenSimBase.HandleCommanderCommand"/> via
+        /// <see cref="OpenSim.OpenSimBase.AddPluginCommands"/> via
+        /// <see cref="OpenSim.OpenSimBase.StartupSpecific"/>
+        /// </remarks>
         public event OnPluginConsoleDelegate OnPluginConsole;
 
         /// <summary>
@@ -121,8 +229,28 @@ namespace OpenSim.Region.Framework.Scenes
 
         public delegate void OnSetRootAgentSceneDelegate(UUID agentID, Scene scene);
 
+        /// <summary>
+        /// Triggered before the grunt work for adding a root agent to a
+        /// scene has been performed (resuming attachment scripts, physics,
+        /// animations etc.)
+        /// </summary>
+        /// <remarks>
+        /// Triggered before <see cref="OnMakeRootAgent"/>
+        /// by <see cref="TriggerSetRootAgentScene"/>
+        /// in <see cref="ScenePresence.MakeRootAgent"/>
+        /// via <see cref="Scene.AgentCrossing"/>
+        /// and <see cref="ScenePresence.CompleteMovement"/>
+        /// </remarks>
         public event OnSetRootAgentSceneDelegate OnSetRootAgentScene;
 
+        /// <summary>
+        /// Triggered after parcel properties have been updated.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerOnParcelPropertiesUpdateRequest"/> in
+        /// <see cref="OpenSim.Region.CoreModules.World.Land.LandManagementModule.ClientOnParcelPropertiesUpdateRequest"/>,
+        /// <see cref="OpenSim.Region.CoreModules.World.Land.LandManagementModule.ProcessPropertiesUpdate"/>
+        /// </remarks>
         public event ParcelPropertiesUpdateRequest OnParcelPropertiesUpdateRequest;
 
         /// <summary>
@@ -137,13 +265,45 @@ namespace OpenSim.Region.Framework.Scenes
         /// <summary>
         /// Fired when an object is touched/grabbed.
         /// </summary>
+        /// <remarks>
         /// The originalID is the local ID of the part that was actually touched.  The localID itself is always that of
         /// the root part.
+        /// Triggerd in response to <see cref="OpenSim.Framework.IClientAPI.OnGrabObject"/>
+        /// via <see cref="TriggerObjectGrab"/>
+        /// in <see cref="Scene.ProcessObjectGrab"/>
+        /// </remarks>
         public event ObjectGrabDelegate OnObjectGrab;
         public delegate void ObjectGrabDelegate(uint localID, uint originalID, Vector3 offsetPos, IClientAPI remoteClient, SurfaceTouchEventArgs surfaceArgs);
         
+        /// <summary>
+        /// Triggered when an object is being touched/grabbed continuously.
+        /// </summary>
+        /// <remarks>
+        /// Triggered in response to <see cref="OpenSim.Framework.IClientAPI.OnGrabUpdate"/>
+        /// via <see cref="TriggerObjectGrabbing"/>
+        /// in <see cref="Scene.ProcessObjectGrabUpdate"/>
+        /// </remarks>
         public event ObjectGrabDelegate OnObjectGrabbing;
+
+        /// <summary>
+        /// Triggered when an object stops being touched/grabbed.
+        /// </summary>
+        /// <remarks>
+        /// Triggered in response to <see cref="OpenSim.Framework.IClientAPI.OnDeGrabObject"/>
+        /// via <see cref="TriggerObjectDeGrab"/>
+        /// in <see cref="Scene.ProcessObjectDeGrab"/>
+        /// </remarks>
         public event ObjectDeGrabDelegate OnObjectDeGrab;
+
+        /// <summary>
+        /// Triggered when a script resets.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerScriptReset"/>
+        /// in <see cref="Scene.ProcessScriptReset"/>
+        /// via <see cref="OpenSim.Framework.IClientAPI.OnScriptReset"/>
+        /// via <see cref="OpenSim.Region.ClientStack.LindenUDP.LLClientView.HandleScriptReset"/>
+        /// </remarks>
         public event ScriptResetDelegate OnScriptReset;
 
         public event OnPermissionErrorDelegate OnPermissionError;
@@ -153,29 +313,105 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         /// <remarks>
         /// Occurs after OnNewScript.
+        /// Triggered by <see cref="TriggerRezScript"/>
+        /// in <see cref="SceneObjectPartInventory.CreateScriptInstance"/>
         /// </remarks>
         public event NewRezScript OnRezScript;
         public delegate void NewRezScript(uint localID, UUID itemID, string script, int startParam, bool postOnRez, string engine, int stateSource);
 
         public delegate void RemoveScript(uint localID, UUID itemID);
+
+        /// <summary>
+        /// Triggered when a script is removed from an object.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerRemoveScript"/>
+        /// in <see cref="Scene.RemoveTaskInventory"/>,
+        /// <see cref="Scene.CreateAgentInventoryItemFromTask"/>,
+        /// <see cref="SceneObjectPartInventory.RemoveScriptInstance"/>,
+        /// <see cref="SceneObjectPartInventory.RemoveInventoryItem"/>
+        /// </remarks>
         public event RemoveScript OnRemoveScript;
 
         public delegate void StartScript(uint localID, UUID itemID);
+
+        /// <summary>
+        /// Triggered when a script starts.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerStartScript"/>
+        /// in <see cref="Scene.SetScriptRunning"/>
+        /// via <see cref="OpenSim.Framework.IClientAPI.OnSetScriptRunning"/>,
+        /// via <see cref="OpenSim.Region.ClientStack.LindenUDP.HandleSetScriptRunning"/>
+        /// </remarks>
         public event StartScript OnStartScript;
 
         public delegate void StopScript(uint localID, UUID itemID);
+
+        /// <summary>
+        /// Triggered when a script stops.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerStopScript"/>,
+        /// in <see cref="SceneObjectPartInventory.CreateScriptInstance"/>,
+        /// <see cref="SceneObjectPartInventory.StopScriptInstance"/>,
+        /// <see cref="Scene.SetScriptRunning"/>
+        /// </remarks>
         public event StopScript OnStopScript;
 
         public delegate bool SceneGroupMoved(UUID groupID, Vector3 delta);
+
+        /// <summary>
+        /// Triggered when an object is moved.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerGroupMove"/>
+        /// in <see cref="SceneObjectGroup.UpdateGroupPosition"/>,
+        /// <see cref="SceneObjectGroup.GrabMovement"/>
+        /// </remarks>
         public event SceneGroupMoved OnSceneGroupMove;
 
         public delegate void SceneGroupGrabed(UUID groupID, Vector3 offset, UUID userID);
+
+        /// <summary>
+        /// Triggered when an object is grabbed.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerGroupGrab"/>
+        /// in <see cref="SceneObjectGroup.OnGrabGroup"/>
+        /// via <see cref="SceneObjectGroup.ObjectGrabHandler"/>
+        /// via <see cref="Scene.ProcessObjectGrab"/>
+        /// via <see cref="OpenSim.Framework.IClientAPI.OnGrabObject"/>
+        /// via <see cref="OpenSim.Region.ClientStack.LindenUDP.LLClientView.HandleObjectGrab"/>
+        /// </remarks>
         public event SceneGroupGrabed OnSceneGroupGrab;
 
         public delegate bool SceneGroupSpinStarted(UUID groupID);
+
+        /// <summary>
+        /// Triggered when an object starts to spin.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerGroupSpinStart"/>
+        /// in <see cref="SceneObjectGroup.SpinStart"/>
+        /// via <see cref="SceneGraph.SpinStart"/>
+        /// via <see cref="OpenSim.Framework.IClientAPI.OnSpinStart"/>
+        /// via <see cref="OpenSim.Region.ClientStack.LindenUDP.LLClientView.HandleObjectSpinStart"/>
+        /// </remarks>
         public event SceneGroupSpinStarted OnSceneGroupSpinStart;
 
         public delegate bool SceneGroupSpun(UUID groupID, Quaternion rotation);
+
+        /// <summary>
+        /// Triggered when an object is being spun.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerGroupSpin"/>
+        /// in <see cref="SceneObjectGroup.SpinMovement"/>
+        /// via <see cref="SceneGraph.SpinObject"/>
+        /// via <see cref="OpenSim.Framework.IClientAPI.OnSpinUpdate"/>
+        /// via <see cref="OpenSim.Region.ClientStack.LindenUDP.LLClientView.HandleObjectSpinUpdate"/>
+        /// </remarks>
         public event SceneGroupSpun OnSceneGroupSpin;
 
         public delegate void LandObjectAdded(ILandObject newParcel);
@@ -204,6 +440,9 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         /// <remarks>
         /// At the point of firing, the scene still contains the client's scene presence.
+        ///
+        /// This is triggered under per-agent lock.  So if you want to perform any long-running operations, please
+        /// do this on a separate thread.
         /// </remarks>
         public event ClientClosed OnClientClosed;
 
@@ -214,6 +453,9 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         /// <remarks>
         /// Occurs before OnRezScript
+        /// Triggered by <see cref="TriggerNewScript"/>
+        /// in <see cref="Scene.RezScriptFromAgentInventory"/>,
+        /// <see cref="Scene.RezNewScript"/>
         /// </remarks>
         public event NewScript OnNewScript;
 
@@ -248,6 +490,12 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         /// <remarks>
         /// Triggered after the scene receives a client's upload of an updated script and has stored it in an asset.
+        /// Triggered by <see cref="TriggerUpdateScript"/>
+        /// in <see cref="Scene.CapsUpdateTaskInventoryScriptAsset"/>
+        /// via <see cref="Scene.CapsUpdateTaskInventoryScriptAsset"/>
+        /// via <see cref="OpenSim.Region.ClientStack.Linden.BunchOfCaps.TaskScriptUpdated"/>
+        /// via <see cref="OpenSim.Region.ClientStack.Linden.TaskInventoryScriptUpdater.OnUpLoad"/>
+        /// via <see cref="OpenSim.Region.ClientStack.Linden.TaskInventoryScriptUpdater.uploaderCaps"/>
         /// </remarks>
         public event UpdateScript OnUpdateScript;
         
@@ -273,48 +521,203 @@ namespace OpenSim.Region.Framework.Scenes
         } 
 
         /// <summary>
+        /// Triggered when some scene object properties change.
+        /// </summary>
+        /// <remarks>
         /// ScriptChangedEvent is fired when a scene object property that a script might be interested 
         /// in (such as color, scale or inventory) changes.  Only enough information sent is for the LSL changed event.
         /// This is not an indication that the script has changed (see OnUpdateScript for that). 
         /// This event is sent to a script to tell it that some property changed on 
         /// the object the script is in. See http://lslwiki.net/lslwiki/wakka.php?wakka=changed .
-        /// </summary>
+        /// Triggered by <see cref="TriggerOnScriptChangedEvent"/>
+        /// in <see cref="OpenSim.Region.CoreModules.Framework.EntityTransfer.EntityTransferModule.TeleportAgentWithinRegion"/>,
+        /// <see cref="SceneObjectPart.TriggerScriptChangedEvent"/>
+        /// </remarks>
         public event ScriptChangedEvent OnScriptChangedEvent;
         public delegate void ScriptChangedEvent(uint localID, uint change);
 
         public delegate void ScriptControlEvent(UUID item, UUID avatarID, uint held, uint changed);
+
+        /// <summary>
+        /// Triggered when a script receives control input from an agent.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerControlEvent"/>
+        /// in <see cref="ScenePresence.SendControlsToScripts"/>
+        /// via <see cref="ScenePresence.HandleAgentUpdate"/>
+        /// via <see cref="OpenSim.Framework.IClientAPI.OnAgentUpdate"/>
+        /// via <see cref="OpenSim.Region.ClientStack.LindenUDP.LLClientView.HandleAgentUpdate"/>
+        /// </remarks>
         public event ScriptControlEvent OnScriptControlEvent;
 
         public delegate void ScriptAtTargetEvent(uint localID, uint handle, Vector3 targetpos, Vector3 atpos);
+
+        /// <summary>
+        /// Triggered when an object has arrived within a tolerance distance
+        /// of a motion target.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerAtTargetEvent"/>
+        /// in <see cref="SceneObjectGroup.checkAtTargets"/>
+        /// via <see cref="SceneObjectGroup.ScheduleGroupForFullUpdate"/>,
+        /// <see cref="Scene.CheckAtTargets"/> via <see cref="Scene.Update"/>
+        /// </remarks>
         public event ScriptAtTargetEvent OnScriptAtTargetEvent;
 
         public delegate void ScriptNotAtTargetEvent(uint localID);
+
+        /// <summary>
+        /// Triggered when an object has a motion target but has not arrived
+        /// within a tolerance distance.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerNotAtTargetEvent"/>
+        /// in <see cref="SceneObjectGroup.checkAtTargets"/>
+        /// via <see cref="SceneObjectGroup.ScheduleGroupForFullUpdate"/>,
+        /// <see cref="Scene.CheckAtTargets"/> via <see cref="Scene.Update"/>
+        /// </remarks>
         public event ScriptNotAtTargetEvent OnScriptNotAtTargetEvent;
 
         public delegate void ScriptAtRotTargetEvent(uint localID, uint handle, Quaternion targetrot, Quaternion atrot);
+
+        /// <summary>
+        /// Triggered when an object has arrived within a tolerance rotation
+        /// of a rotation target.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerAtRotTargetEvent"/>
+        /// in <see cref="SceneObjectGroup.checkAtTargets"/>
+        /// via <see cref="SceneObjectGroup.ScheduleGroupForFullUpdate"/>,
+        /// <see cref="Scene.CheckAtTargets"/> via <see cref="Scene.Update"/>
+        /// </remarks>
         public event ScriptAtRotTargetEvent OnScriptAtRotTargetEvent;
 
         public delegate void ScriptNotAtRotTargetEvent(uint localID);
+
+        /// <summary>
+        /// Triggered when an object has a rotation target but has not arrived
+        /// within a tolerance rotation.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerNotAtRotTargetEvent"/>
+        /// in <see cref="SceneObjectGroup.checkAtTargets"/>
+        /// via <see cref="SceneObjectGroup.ScheduleGroupForFullUpdate"/>,
+        /// <see cref="Scene.CheckAtTargets"/> via <see cref="Scene.Update"/>
+        /// </remarks>
         public event ScriptNotAtRotTargetEvent OnScriptNotAtRotTargetEvent;
 
         public delegate void ScriptColliding(uint localID, ColliderArgs colliders);
+
+        /// <summary>
+        /// Triggered when a physical collision has started between a prim
+        /// and something other than the region terrain.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerScriptCollidingStart"/>
+        /// in <see cref="SceneObjectPart.SendCollisionEvent"/>
+        /// via <see cref="SceneObjectPart.PhysicsCollision"/>
+        /// via <see cref="OpenSim.Region.Physics.Manager.PhysicsActor.OnCollisionUpdate"/>
+        /// via <see cref="OpenSim.Region.Physics.Manager.PhysicsActor.SendCollisionUpdate"/>
+        /// </remarks>
         public event ScriptColliding OnScriptColliderStart;
+
+        /// <summary>
+        /// Triggered when something that previously collided with a prim has
+        /// not stopped colliding with it.
+        /// </summary>
+        /// <remarks>
+        /// <seealso cref="OnScriptColliderStart"/>
+        /// Triggered by <see cref="TriggerScriptColliding"/>
+        /// in <see cref="SceneObjectPart.SendCollisionEvent"/>
+        /// via <see cref="SceneObjectPart.PhysicsCollision"/>
+        /// via <see cref="OpenSim.Region.Physics.Manager.PhysicsActor.OnCollisionUpdate"/>
+        /// via <see cref="OpenSim.Region.Physics.Manager.PhysicsActor.SendCollisionUpdate"/>
+        /// </remarks>
         public event ScriptColliding OnScriptColliding;
+
+        /// <summary>
+        /// Triggered when something that previously collided with a prim has
+        /// stopped colliding with it.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerScriptCollidingEnd"/>
+        /// in <see cref="SceneObjectPart.SendCollisionEvent"/>
+        /// via <see cref="SceneObjectPart.PhysicsCollision"/>
+        /// via <see cref="OpenSim.Region.Physics.Manager.PhysicsActor.OnCollisionUpdate"/>
+        /// via <see cref="OpenSim.Region.Physics.Manager.PhysicsActor.SendCollisionUpdate"/>
+        /// </remarks>
         public event ScriptColliding OnScriptCollidingEnd;
+
+        /// <summary>
+        /// Triggered when a physical collision has started between an object
+        /// and the region terrain.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerScriptLandCollidingStart"/>
+        /// in <see cref="SceneObjectPart.SendLandCollisionEvent"/>
+        /// via <see cref="SceneObjectPart.PhysicsCollision"/>
+        /// via <see cref="OpenSim.Region.Physics.Manager.PhysicsActor.OnCollisionUpdate"/>
+        /// via <see cref="OpenSim.Region.Physics.Manager.PhysicsActor.SendCollisionUpdate"/>
+        /// </remarks>
         public event ScriptColliding OnScriptLandColliderStart;
+
+        /// <summary>
+        /// Triggered when an object that previously collided with the region
+        /// terrain has not yet stopped colliding with it.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerScriptLandColliding"/>
+        /// in <see cref="SceneObjectPart.SendLandCollisionEvent"/>
+        /// via <see cref="SceneObjectPart.PhysicsCollision"/>
+        /// via <see cref="OpenSim.Region.Physics.Manager.PhysicsActor.OnCollisionUpdate"/>
+        /// via <see cref="OpenSim.Region.Physics.Manager.PhysicsActor.SendCollisionUpdate"/>
+        /// </remarks>
         public event ScriptColliding OnScriptLandColliding;
+
+        /// <summary>
+        /// Triggered when an object that previously collided with the region
+        /// terrain has stopped colliding with it.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerScriptLandCollidingEnd"/>
+        /// in <see cref="SceneObjectPart.SendLandCollisionEvent"/>
+        /// via <see cref="SceneObjectPart.PhysicsCollision"/>
+        /// via <see cref="OpenSim.Region.Physics.Manager.PhysicsActor.OnCollisionUpdate"/>
+        /// via <see cref="OpenSim.Region.Physics.Manager.PhysicsActor.SendCollisionUpdate"/>
+        /// </remarks>
         public event ScriptColliding OnScriptLandColliderEnd;
 
         public delegate void OnMakeChildAgentDelegate(ScenePresence presence);
+
+        /// <summary>
+        /// Triggered when an agent has been made a child agent of a scene.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerOnMakeChildAgent"/>
+        /// in <see cref="ScenePresence.MakeChildAgent"/>
+        /// via <see cref="OpenSim.Region.CoreModules.Framework.EntityTransfer.EntityTransferModule.CrossAgentToNewRegionAsync"/>,
+        /// <see cref="OpenSim.Region.CoreModules.Framework.EntityTransfer.EntityTransferModule.DoTeleport"/>,
+        /// <see cref="OpenSim.Region.CoreModules.InterGrid.KillAUser.ShutdownNoLogout"/>
+        /// </remarks>
         public event OnMakeChildAgentDelegate OnMakeChildAgent;
 
         public delegate void OnSaveNewWindlightProfileDelegate();
         public delegate void OnSendNewWindlightProfileTargetedDelegate(RegionLightShareData wl, UUID user);
 
         /// <summary>
+        /// Triggered after the grunt work for adding a root agent to a
+        /// scene has been performed (resuming attachment scripts, physics,
+        /// animations etc.)
+        /// </summary>
+        /// <remarks>
         /// This event is on the critical path for transferring an avatar from one region to another.  Try and do
         /// as little work on this event as possible, or do work asynchronously.
-        /// </summary>
+        /// Triggered after <see cref="OnSetRootAgentScene"/>
+        /// by <see cref="TriggerOnMakeRootAgent"/>
+        /// in <see cref="ScenePresence.MakeRootAgent"/>
+        /// via <see cref="Scene.AgentCrossing"/>
+        /// and <see cref="ScenePresence.CompleteMovement"/>
+        /// </remarks>
         public event Action<ScenePresence> OnMakeRootAgent;
         
         public event OnSendNewWindlightProfileTargetedDelegate OnSendNewWindlightProfileTargeted;
@@ -340,9 +743,17 @@ namespace OpenSim.Region.Framework.Scenes
         public event AvatarKillData OnAvatarKilled;
         public delegate void AvatarKillData(uint KillerLocalID, ScenePresence avatar);
 
-//        public delegate void ScriptTimerEvent(uint localID, double timerinterval);
-
-//        public event ScriptTimerEvent OnScriptTimerEvent;
+        /*
+        public delegate void ScriptTimerEvent(uint localID, double timerinterval);
+        /// <summary>
+        /// Used to be triggered when the LSL timer event fires.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerTimerEvent"/>
+        /// via <see cref="SceneObjectPart.handleTimerAccounting"/>
+        /// </remarks>
+        public event ScriptTimerEvent OnScriptTimerEvent;
+         */
 
         public delegate void EstateToolsSunUpdate(ulong regionHandle, bool FixedTime, bool EstateSun, float LindenHour);
         public delegate void GetScriptRunning(IClientAPI controllingClient, UUID objectID, UUID itemID);
@@ -352,12 +763,27 @@ namespace OpenSim.Region.Framework.Scenes
         /// <summary>
         /// Triggered when an object is added to the scene.
         /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerObjectAddedToScene"/>
+        /// in <see cref="Scene.AddNewSceneObject"/>,
+        /// <see cref="Scene.DuplicateObject"/>,
+        /// <see cref="Scene.doObjectDuplicateOnRay"/>
+        /// </remarks>
         public event Action<SceneObjectGroup> OnObjectAddedToScene;
 
         /// <summary>
-        /// Triggered when an object is removed from the scene.
+        /// Delegate for <see cref="OnObjectBeingRemovedFromScene"/>
         /// </summary>
+        /// <param name="obj">The object being removed from the scene</param>
         public delegate void ObjectBeingRemovedFromScene(SceneObjectGroup obj);
+
+        /// <summary>
+        /// Triggered when an object is removed from the scene.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerObjectBeingRemovedFromScene"/>
+        /// in <see cref="Scene.DeleteSceneObject"/>
+        /// </remarks>
         public event ObjectBeingRemovedFromScene OnObjectBeingRemovedFromScene;
 
         public delegate void NoticeNoLandDataFromStorage();
@@ -373,6 +799,20 @@ namespace OpenSim.Region.Framework.Scenes
         public event RequestParcelPrimCountUpdate OnRequestParcelPrimCountUpdate;
 
         public delegate void ParcelPrimCountTainted();
+
+        /// <summary>
+        /// Triggered when the parcel prim count has been altered.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerParcelPrimCountTainted"/> in
+        /// <see cref="OpenSim.Region.CoreModules.Avatar.Attachments.AttachmentsModule.DetachSingleAttachmentToGround"/>,
+        /// <see cref="OpenSim.Region.CoreModules.Avatar.Attachments.AttachmentsModule.AttachToAgent"/>,
+        /// <see cref="Scene.DeleteSceneObject"/>,
+        /// <see cref="Scene.SelectPrim"/>,
+        /// <see cref="Scene.DeselectPrim"/>,
+        /// <see cref="SceneObjectGroup.UpdatePrimFlags"/>,
+        /// <see cref="SceneObjectGroup.AbsolutePosition"/>
+        /// </remarks>
         public event ParcelPrimCountTainted OnParcelPrimCountTainted;
         public event GetScriptRunning OnGetScriptRunning;
 
@@ -432,7 +872,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// the scripts may not have started yet
         /// Message is non empty string if there were problems loading the oar file
         /// </summary>
-        public delegate void OarFileLoaded(Guid guid, string message);
+        public delegate void OarFileLoaded(Guid guid, List<UUID> loadedScenes, string message);
         public event OarFileLoaded OnOarFileLoaded;
         
         /// <summary>
@@ -485,10 +925,13 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="copy"></param>
         /// <param name="original"></param>
         /// <param name="userExposed">True if the duplicate will immediately be in the scene, false otherwise</param>
+        /// <remarks>
+        /// Triggered in <see cref="OpenSim.Region.Framework.Scenes.SceneObjectPart.Copy"/>
+        /// </remarks>
         public event SceneObjectPartCopyDelegate OnSceneObjectPartCopy;
         public delegate void SceneObjectPartCopyDelegate(SceneObjectPart copy, SceneObjectPart original, bool userExposed);
 
-        public delegate void SceneObjectPartUpdated(SceneObjectPart sop);
+        public delegate void SceneObjectPartUpdated(SceneObjectPart sop, bool full);
         public event SceneObjectPartUpdated OnSceneObjectPartUpdated;
 
         public delegate void ScenePresenceUpdated(ScenePresence sp);
@@ -526,9 +969,28 @@ namespace OpenSim.Region.Framework.Scenes
         public event PrimsLoaded OnPrimsLoaded;
 
         public delegate void TeleportStart(IClientAPI client, GridRegion destination, GridRegion finalDestination, uint teleportFlags, bool gridLogout);
+
+        /// <summary>
+        /// Triggered when a teleport starts
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerTeleportStart"/>
+        /// in <see cref="OpenSim.Region.CoreModules.Framework.EntityTransfer.EntityTransferModule.CreateAgent"/>
+        /// and <see cref="OpenSim.Region.CoreModules.Framework.EntityTransfer.HGEntityTransferModule.CreateAgent"/>
+        /// via <see cref="OpenSim.Region.CoreModules.Framework.EntityTransfer.EntityTransferModule.DoTeleport"/>
+        /// </remarks>
         public event TeleportStart OnTeleportStart;
 
         public delegate void TeleportFail(IClientAPI client, bool gridLogout);
+
+        /// <summary>
+        /// Trigered when a teleport fails.
+        /// </summary>
+        /// <remarks>
+        /// Triggered by <see cref="TriggerTeleportFail"/>
+        /// in <see cref="OpenSim.Region.CoreModules.Framework.EntityTransfer.EntityTransferModule.Fail"/>
+        /// via <see cref="OpenSim.Region.CoreModules.Framework.EntityTransfer.EntityTransferModule.DoTeleport"/>
+        /// </remarks>
         public event TeleportFail OnTeleportFail;
 
         public class MoneyTransferArgs : EventArgs
@@ -536,7 +998,9 @@ namespace OpenSim.Region.Framework.Scenes
             public UUID sender;
             public UUID receiver;
 
-            // Always false. The SL protocol sucks.
+            /// <summary>
+            /// Always false. The SL protocol sucks.
+            /// </summary>
             public bool authenticated = false;
 
             public int amount;
@@ -593,8 +1057,29 @@ namespace OpenSim.Region.Framework.Scenes
 
         public delegate void LandBuy(Object sender, LandBuyArgs e);
 
+        /// <summary>
+        /// Triggered when an attempt to transfer grid currency occurs
+        /// </summary>
+        /// <remarks>
+        /// Triggered in <see cref="OpenSim.Region.Framework.Scenes.Scene.ProcessMoneyTransferRequest"/>
+        /// via <see cref="OpenSim.Region.Framework.Scenes.Scene.SubscribeToClientGridEvents"/>
+        /// via <see cref="OpenSim.Region.Framework.Scenes.Scene.SubscribeToClientEvents"/>
+        /// via <see cref="OpenSim.Region.Framework.Scenes.Scene.AddNewClient"/>
+        /// </remarks>
         public event MoneyTransferEvent OnMoneyTransfer;
+
+        /// <summary>
+        /// Triggered after after <see cref="OnValidateLandBuy"/>
+        /// </summary>
         public event LandBuy OnLandBuy;
+
+        /// <summary>
+        /// Triggered to allow or prevent a real estate transaction
+        /// </summary>
+        /// <remarks>
+        /// Triggered in <see cref="OpenSim.Region.Framework.Scenes.Scene.ProcessParcelBuy"/>
+        /// <seealso cref="OpenSim.Region.OptionalModules.World.MoneyModule.SampleMoneyModule.ValidateLandBuy"/>
+        /// </remarks>
         public event LandBuy OnValidateLandBuy;
 
         public void TriggerOnAttach(uint localID, UUID itemID, UUID avatarID)
@@ -2031,7 +2516,11 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
-        // this lets us keep track of nasty script events like timer, etc.
+        /// <summary>
+        /// this lets us keep track of nasty script events like timer, etc.
+        /// </summary>
+        /// <param name="objLocalID"></param>
+        /// <param name="Interval"></param>
         public void TriggerTimerEvent(uint objLocalID, double Interval)
         {
             throw new NotImplementedException("TriggerTimerEvent was thought to be not used anymore and the registration for the event from scene object part has been commented out due to a memory leak");
@@ -2093,7 +2582,7 @@ namespace OpenSim.Region.Framework.Scenes
             return 6;
         }
 
-        public void TriggerOarFileLoaded(Guid requestId, string message)
+        public void TriggerOarFileLoaded(Guid requestId, List<UUID> loadedScenes, string message)
         {
             OarFileLoaded handlerOarFileLoaded = OnOarFileLoaded;
             if (handlerOarFileLoaded != null)
@@ -2102,7 +2591,7 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     try
                     {
-                        d(requestId, message);
+                        d(requestId, loadedScenes, message);
                     }
                     catch (Exception e)
                     {
@@ -2387,7 +2876,7 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
-        public void TriggerSceneObjectPartUpdated(SceneObjectPart sop)
+        public void TriggerSceneObjectPartUpdated(SceneObjectPart sop, bool full)
         {
             SceneObjectPartUpdated handler = OnSceneObjectPartUpdated;
             if (handler != null)
@@ -2396,7 +2885,7 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     try
                     {
-                        d(sop);
+                        d(sop, full);
                     }
                     catch (Exception e)
                     {
diff --git a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
index 906c1ee..6208a57 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
@@ -93,7 +93,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public void StartScripts()
         {
-            m_log.InfoFormat("[SCENE]: Starting scripts in {0}, please wait.", RegionInfo.RegionName);
+//            m_log.InfoFormat("[SCENE]: Starting scripts in {0}, please wait.", RegionInfo.RegionName);
 
             IScriptModule[] engines = RequestModuleInterfaces<IScriptModule>();
 
@@ -1469,7 +1469,7 @@ namespace OpenSim.Region.Framework.Scenes
             return newFolderID;
         }
 
-        private void SendInventoryUpdate(IClientAPI client, InventoryFolderBase folder, bool fetchFolders, bool fetchItems)
+        public void SendInventoryUpdate(IClientAPI client, InventoryFolderBase folder, bool fetchFolders, bool fetchItems)
         {
             if (folder == null)
                 return;
@@ -1997,6 +1997,9 @@ namespace OpenSim.Region.Framework.Scenes
                 // If child prims have invalid perms, fix them
                 grp.AdjustChildPrimPermissions();
 
+                // If child prims have invalid perms, fix them
+                grp.AdjustChildPrimPermissions();
+
                 if (remoteClient == null)
                 {
                     // Autoreturn has a null client. Nothing else does. So
diff --git a/OpenSim/Region/Framework/Scenes/Scene.PacketHandlers.cs b/OpenSim/Region/Framework/Scenes/Scene.PacketHandlers.cs
index e970543..ce6415a 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.PacketHandlers.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.PacketHandlers.cs
@@ -38,8 +38,20 @@ namespace OpenSim.Region.Framework.Scenes
 {
     public partial class Scene
     {
+        /// <summary>
+        /// Send chat to listeners.
+        /// </summary>
+        /// <param name='message'></param>
+        /// <param name='type'>/param>
+        /// <param name='channel'></param>
+        /// <param name='fromPos'></param>
+        /// <param name='fromName'></param>
+        /// <param name='fromID'></param>
+        /// <param name='targetID'></param>
+        /// <param name='fromAgent'></param>
+        /// <param name='broadcast'></param>
         public void SimChat(byte[] message, ChatTypeEnum type, int channel, Vector3 fromPos, string fromName,
-                               UUID fromID, bool fromAgent, bool broadcast, UUID destination)
+                               UUID fromID, UUID targetID, bool fromAgent, bool broadcast)
         {
             OSChatMessage args = new OSChatMessage();
 
@@ -49,7 +61,7 @@ namespace OpenSim.Region.Framework.Scenes
             args.Position = fromPos;
             args.SenderUUID = fromID;
             args.Scene = this;
-            args.Destination = destination;
+            args.Destination = targetID;
 
             if (fromAgent)
             {
@@ -66,6 +78,10 @@ namespace OpenSim.Region.Framework.Scenes
             args.From = fromName;
             //args.
 
+//            m_log.DebugFormat(
+//                "[SCENE]: Sending message {0} on channel {1}, type {2} from {3}, broadcast {4}",
+//                args.Message.Replace("\n", "\\n"), args.Channel, args.Type, fromName, broadcast);
+
             if (broadcast)
                 EventManager.TriggerOnChatBroadcast(this, args);
             else
@@ -75,7 +91,7 @@ namespace OpenSim.Region.Framework.Scenes
         protected void SimChat(byte[] message, ChatTypeEnum type, int channel, Vector3 fromPos, string fromName,
                                UUID fromID, bool fromAgent, bool broadcast)
         {
-            SimChat(message, type, channel, fromPos, fromName, fromID, fromAgent, broadcast, UUID.Zero);
+            SimChat(message, type, channel, fromPos, fromName, fromID, UUID.Zero, fromAgent, broadcast);
         }
 
         /// <summary>
@@ -543,7 +559,7 @@ namespace OpenSim.Region.Framework.Scenes
             if (!InventoryService.AddFolder(folder))
             {
                 m_log.WarnFormat(
-                     "[AGENT INVENTORY]: Failed to move create folder for user {0} {1}",
+                     "[AGENT INVENTORY]: Failed to create folder for user {0} {1}",
                      remoteClient.Name, remoteClient.AgentId);
             }
         }
diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 649d545..2543333 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -80,6 +80,11 @@ namespace OpenSim.Region.Framework.Scenes
         public SynchronizeSceneHandler SynchronizeScene;
 
         /// <summary>
+        /// Used to prevent simultaneous calls to RemoveClient() for the same agent from interfering with each other.
+        /// </summary>
+        private object m_removeClientLock = new object();
+
+        /// <summary>
         /// Statistical information for this scene.
         /// </summary>
         public SimStatsReporter StatsReporter { get; private set; }
@@ -103,8 +108,31 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public bool CollidablePrims { get; private set; }
 
+        /// <summary>
+        /// Minimum value of the size of a non-physical prim in each axis
+        /// </summary>
+        public float m_minNonphys = 0.001f;
+
+        /// <summary>
+        /// Maximum value of the size of a non-physical prim in each axis
+        /// </summary>
         public float m_maxNonphys = 256;
+
+        /// <summary>
+        /// Minimum value of the size of a physical prim in each axis
+        /// </summary>
+        public float m_minPhys = 0.01f;
+
+        /// <summary>
+        /// Maximum value of the size of a physical prim in each axis
+        /// </summary>
         public float m_maxPhys = 10;
+
+        /// <summary>
+        /// Max prims an object will hold
+        /// </summary>
+        public int m_linksetCapacity = 0;
+
         public bool m_clampPrimSize;
         public bool m_trustBinaries;
         public bool m_allowScriptCrossings;
@@ -285,6 +313,31 @@ namespace OpenSim.Region.Framework.Scenes
         }
         private volatile bool m_shuttingDown;
 
+        /// <summary>
+        /// Is the scene active?
+        /// </summary>
+        /// <remarks>
+        /// If false, maintenance and update loops are not being run.  Updates can still be triggered manually if
+        /// the scene is not active.
+        /// </remarks>
+        public bool Active
+        {
+            get { return m_active; }
+            set
+            {
+                if (value)
+                {
+                    if (!m_active)
+                        Start();
+                }
+                else
+                {
+                    m_active = false;
+                }
+            }
+        }
+        private volatile bool m_active;
+
 //        private int m_lastUpdate;
         private bool m_firstHeartbeat = true;
         
@@ -746,12 +799,24 @@ namespace OpenSim.Region.Framework.Scenes
                     PhysicalPrims = startupConfig.GetBoolean("physical_prim", true);
                     CollidablePrims = startupConfig.GetBoolean("collidable_prim", true);
 
-                    m_maxNonphys = startupConfig.GetFloat("NonphysicalPrimMax", m_maxNonphys);
+                    m_minNonphys = startupConfig.GetFloat("NonPhysicalPrimMin", m_minNonphys);
+                    if (RegionInfo.NonphysPrimMin > 0)
+                    {
+                        m_minNonphys = RegionInfo.NonphysPrimMin;
+                    }
+
+                    m_maxNonphys = startupConfig.GetFloat("NonPhysicalPrimMax", m_maxNonphys);
                     if (RegionInfo.NonphysPrimMax > 0)
                     {
                         m_maxNonphys = RegionInfo.NonphysPrimMax;
                     }
 
+                    m_minPhys = startupConfig.GetFloat("PhysicalPrimMin", m_minPhys);
+                    if (RegionInfo.PhysPrimMin > 0)
+                    {
+                        m_minPhys = RegionInfo.PhysPrimMin;
+                    }
+
                     m_maxPhys = startupConfig.GetFloat("PhysicalPrimMax", m_maxPhys);
 
                     if (RegionInfo.PhysPrimMax > 0)
@@ -759,6 +824,12 @@ namespace OpenSim.Region.Framework.Scenes
                         m_maxPhys = RegionInfo.PhysPrimMax;
                     }
 
+                    m_linksetCapacity = startupConfig.GetInt("LinksetPrims", m_linksetCapacity);
+                    if (RegionInfo.LinksetCapacity > 0)
+                    {
+                        m_linksetCapacity = RegionInfo.LinksetCapacity;
+                    }
+
                     SpawnPointRouting = startupConfig.GetString("SpawnPointRouting", "closest");
                     TelehubAllowLandmarks = startupConfig.GetBoolean("TelehubAllowLandmark", false);
 
@@ -784,13 +855,6 @@ namespace OpenSim.Region.Framework.Scenes
                     m_defaultScriptEngine = startupConfig.GetString("DefaultScriptEngine", "XEngine");
                     m_log.InfoFormat("[SCENE]: Default script engine {0}", m_defaultScriptEngine);
 
-                    IConfig packetConfig = m_config.Configs["PacketPool"];
-                    if (packetConfig != null)
-                    {
-                        PacketPool.Instance.RecyclePackets = packetConfig.GetBoolean("RecyclePackets", true);
-                        PacketPool.Instance.RecycleDataBlocks = packetConfig.GetBoolean("RecycleDataBlocks", true);
-                    }
-
                     m_strictAccessControl = startupConfig.GetBoolean("StrictAccessControl", m_strictAccessControl);
                     m_seeIntoBannedRegion = startupConfig.GetBoolean("SeeIntoBannedRegion", m_seeIntoBannedRegion);
                     CombineRegions = startupConfig.GetBoolean("CombineContiguousRegions", false);
@@ -854,6 +918,8 @@ namespace OpenSim.Region.Framework.Scenes
             }
 
             // FIXME: Ultimately this should be in a module.
+            SendPeriodicAppearanceUpdates = true;
+            
             IConfig appearanceConfig = m_config.Configs["Appearance"];
             if (appearanceConfig != null)
             {
@@ -1151,6 +1217,14 @@ namespace OpenSim.Region.Framework.Scenes
 
         public void SetSceneCoreDebug(Dictionary<string, string> options)
         {
+            if (options.ContainsKey("active"))
+            {
+                bool active;
+
+                if (bool.TryParse(options["active"], out active))
+                    Active = active;
+            }
+
             if (options.ContainsKey("scripting"))
             {
                 bool enableScripts = true;
@@ -1226,6 +1300,12 @@ namespace OpenSim.Region.Framework.Scenes
         // This is the method that shuts down the scene.
         public override void Close()
         {
+            if (m_shuttingDown)
+            {
+                m_log.WarnFormat("[SCENE]: Ignoring close request because already closing {0}", Name);
+                return;
+            }
+
             m_log.InfoFormat("[SCENE]: Closing down the single simulator: {0}", RegionInfo.RegionName);
 
             StatsReporter.Close();
@@ -1272,6 +1352,14 @@ namespace OpenSim.Region.Framework.Scenes
             m_log.Debug("[SCENE]: Graph close");
             m_sceneGraph.Close();
 
+            if (!GridService.DeregisterRegion(RegionInfo.RegionID))
+                m_log.WarnFormat("[SCENE]: Deregister from grid failed for region {0}", Name);
+
+            base.Close();
+
+            // XEngine currently listens to the EventManager.OnShutdown event to trigger script stop and persistence.
+            // Therefore. we must dispose of the PhysicsScene after this to prevent a window where script code can
+            // attempt to reference a null or disposed physics scene.
             if (PhysicsScene != null)
             {
                 m_log.Debug("[SCENE]: Dispose Physics");
@@ -1281,13 +1369,6 @@ namespace OpenSim.Region.Framework.Scenes
                 phys.Dispose();
                 phys = null;
             }
-
-            if (!GridService.DeregisterRegion(RegionInfo.RegionID))
-                m_log.WarnFormat("[SCENE]: Deregister from grid failed for region {0}", Name);
-
-            // call the base class Close method.
-            m_log.Debug("[SCENE]: Base close");
-            base.Close();
         }
 
         /// <summary>
@@ -1295,6 +1376,8 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public void Start()
         {
+            m_active = true;
+
 //            m_log.DebugFormat("[SCENE]: Starting Heartbeat timer for {0}", RegionInfo.RegionName);
 
             //m_heartbeatTimer.Enabled = true;
@@ -1354,7 +1437,7 @@ namespace OpenSim.Region.Framework.Scenes
         #region Update Methods
 
         /// <summary>
-        /// Performs per-frame updates regularly
+        /// Activate the various loops necessary to continually update the scene.
         /// </summary>
         private void Heartbeat()
         {
@@ -1411,7 +1494,7 @@ namespace OpenSim.Region.Framework.Scenes
             List<Vector3> coarseLocations;
             List<UUID> avatarUUIDs;
 
-            while (!m_shuttingDown && (endRun == null || MaintenanceRun < endRun))
+            while (!m_shuttingDown && ((endRun == null && Active) || MaintenanceRun < endRun))
             {
                 runtc = Util.EnvironmentTickCount();
                 ++MaintenanceRun;
@@ -1473,7 +1556,7 @@ namespace OpenSim.Region.Framework.Scenes
             int sleepMS;
             int framestart;
 
-            while (!m_shuttingDown && (endFrame == null || Frame < endFrame))
+            while (!m_shuttingDown && ((endFrame == null && Active) || Frame < endFrame))
             {
                 framestart = Util.EnvironmentTickCount();
                 ++Frame;
@@ -1672,15 +1755,19 @@ namespace OpenSim.Region.Framework.Scenes
 
         private void CheckAtTargets()
         {
-            List<SceneObjectGroup> objs = new List<SceneObjectGroup>();
+            List<SceneObjectGroup> objs = null;
+
             lock (m_groupsWithTargets)
             {
-                foreach (SceneObjectGroup grp in m_groupsWithTargets.Values)
-                    objs.Add(grp);
+                if (m_groupsWithTargets.Count != 0)
+                    objs = new List<SceneObjectGroup>(m_groupsWithTargets.Values);
             }
 
-            foreach (SceneObjectGroup entry in objs)
-                entry.checkAtTargets();
+            if (objs != null)
+            {
+                foreach (SceneObjectGroup entry in objs)
+                    entry.checkAtTargets();
+            }
         }
 
         /// <summary>
@@ -2193,10 +2280,14 @@ namespace OpenSim.Region.Framework.Scenes
         public bool AddRestoredSceneObject(
             SceneObjectGroup sceneObject, bool attachToBackup, bool alreadyPersisted, bool sendClientUpdates)
         {
-            bool result =  m_sceneGraph.AddRestoredSceneObject(sceneObject, attachToBackup, alreadyPersisted, sendClientUpdates);
-            if (result)
+            if (m_sceneGraph.AddRestoredSceneObject(sceneObject, attachToBackup, alreadyPersisted, sendClientUpdates))
+            {
                 sceneObject.IsDeleted = false;
-            return result;
+                EventManager.TriggerObjectAddedToScene(sceneObject);
+                return true;
+            }
+
+            return false;
         }
         
         /// <summary>
@@ -2837,77 +2928,89 @@ namespace OpenSim.Region.Framework.Scenes
 
         public override ISceneAgent AddNewClient(IClientAPI client, PresenceType type)
         {
+            ScenePresence sp;
+            bool vialogin;
+
             // Validation occurs in LLUDPServer
+            //
+            // XXX: A race condition exists here where two simultaneous calls to AddNewClient can interfere with
+            // each other.  In practice, this does not currently occur in the code.
             AgentCircuitData aCircuit = m_authenticateHandler.GetAgentCircuitData(client.CircuitCode);
 
-            bool vialogin
-                = (aCircuit.teleportFlags & (uint)Constants.TeleportFlags.ViaHGLogin) != 0
-                    || (aCircuit.teleportFlags & (uint)Constants.TeleportFlags.ViaLogin) != 0;
-
-            CheckHeartbeat();
-
-            ScenePresence sp = GetScenePresence(client.AgentId);
-
-            // XXX: Not sure how good it is to add a new client if a scene presence already exists.  Possibly this
-            // could occur if a viewer crashes and relogs before the old client is kicked out.  But this could cause
-            // other problems, and possible the code calling AddNewClient() should ensure that no client is already
-            // connected.
-            if (sp == null)
-            {
-                m_log.DebugFormat(
-                    "[SCENE]: Adding new child scene presence {0} {1} to scene {2} at pos {3}",
-                    client.Name, client.AgentId, RegionInfo.RegionName, client.StartPos);
-
-                m_clientManager.Add(client);
-                SubscribeToClientEvents(client);
-
-                sp = m_sceneGraph.CreateAndAddChildScenePresence(client, aCircuit.Appearance, type);
-                m_eventManager.TriggerOnNewPresence(sp);
-
-                sp.TeleportFlags = (TPFlags)aCircuit.teleportFlags;
+            // We lock here on AgentCircuitData to prevent a race condition between the thread adding a new connection
+            // and a simultaneous one that removes it (as can happen if the client is closed at a particular point
+            // whilst connecting).
+            //
+            // It would be easier to lock across all NewUserConnection(), AddNewClient() and
+            // RemoveClient() calls for all agents, but this would allow a slow call (e.g. because of slow service
+            // response in some module listening to AddNewClient()) from holding up unrelated agent calls.
+            //
+            // In practice, the lock (this) in LLUDPServer.AddNewClient() currently lock across all
+            // AddNewClient() operations (though not other ops).
+            // In the future this can be relieved once locking per agent (not necessarily on AgentCircuitData) is improved.
+            lock (aCircuit)
+            {
+                vialogin
+                    = (aCircuit.teleportFlags & (uint)Constants.TeleportFlags.ViaHGLogin) != 0
+                        || (aCircuit.teleportFlags & (uint)Constants.TeleportFlags.ViaLogin) != 0;
+    
+                CheckHeartbeat();
+    
+                sp = GetScenePresence(client.AgentId);
 
-                // The first agent upon login is a root agent by design.
-                // For this agent we will have to rez the attachments.
-                // All other AddNewClient calls find aCircuit.child to be true.
-                if (aCircuit.child == false)
+                // XXX: Not sure how good it is to add a new client if a scene presence already exists.  Possibly this
+                // could occur if a viewer crashes and relogs before the old client is kicked out.  But this could cause
+                // other problems, and possible the code calling AddNewClient() should ensure that no client is already
+                // connected.
+                if (sp == null)
                 {
-                    // We have to set SP to be a root agent here so that SP.MakeRootAgent() will later not try to
-                    // start the scripts again (since this is done in RezAttachments()).
-                    // XXX: This is convoluted.
-                    sp.IsChildAgent = false;
-
-                    if (AttachmentsModule != null)
-                        Util.FireAndForget(delegate(object o) { AttachmentsModule.RezAttachments(sp); });
+                    m_log.DebugFormat(
+                        "[SCENE]: Adding new child scene presence {0} {1} to scene {2} at pos {3}",
+                        client.Name, client.AgentId, RegionInfo.RegionName, client.StartPos);
+    
+                    m_clientManager.Add(client);
+                    SubscribeToClientEvents(client);
+    
+                    sp = m_sceneGraph.CreateAndAddChildScenePresence(client, aCircuit.Appearance, type);
+                    m_eventManager.TriggerOnNewPresence(sp);
+    
+                    sp.TeleportFlags = (TPFlags)aCircuit.teleportFlags;
+    
+                    // The first agent upon login is a root agent by design.
+                    // For this agent we will have to rez the attachments.
+                    // All other AddNewClient calls find aCircuit.child to be true.
+                    if (aCircuit.child == false)
+                    {
+                        // We have to set SP to be a root agent here so that SP.MakeRootAgent() will later not try to
+                        // start the scripts again (since this is done in RezAttachments()).
+                        // XXX: This is convoluted.
+                        sp.IsChildAgent = false;
+    
+                        if (AttachmentsModule != null)
+                            Util.FireAndForget(delegate(object o) { AttachmentsModule.RezAttachments(sp); });
+                    }
                 }
-            }
-            else
-            {
-                m_log.WarnFormat(
-                    "[SCENE]: Already found {0} scene presence for {1} in {2} when asked to add new scene presence",
-                    sp.IsChildAgent ? "child" : "root", sp.Name, RegionInfo.RegionName);
-            }
+                else
+                {
+                    m_log.WarnFormat(
+                        "[SCENE]: Already found {0} scene presence for {1} in {2} when asked to add new scene presence",
+                        sp.IsChildAgent ? "child" : "root", sp.Name, RegionInfo.RegionName);
+                }
+    
+                // We must set this here so that TriggerOnNewClient and TriggerOnClientLogin can determine whether the
+                // client is for a root or child agent.
+                client.SceneAgent = sp;
 
-            // We must set this here so that TriggerOnNewClient and TriggerOnClientLogin can determine whether the
-            // client is for a root or child agent.
-            client.SceneAgent = sp;
+                // Cache the user's name
+                CacheUserName(sp, aCircuit);
+    
+                EventManager.TriggerOnNewClient(client);
+                if (vialogin)
+                    EventManager.TriggerOnClientLogin(client);
+            }
 
             m_LastLogin = Util.EnvironmentTickCount();
 
-            // Cache the user's name
-            CacheUserName(sp, aCircuit);
-
-            EventManager.TriggerOnNewClient(client);
-            if (vialogin)
-            {
-                EventManager.TriggerOnClientLogin(client);
-                // Send initial parcel data
-/* this is done on TriggerOnNewClient by landmanegement respective event handler
-                Vector3 pos = sp.AbsolutePosition;
-                ILandObject land = LandChannel.GetLandObject(pos.X, pos.Y);
-                land.SendLandUpdateToClient(client);
-*/
-            }
-
             return sp;
         }
 
@@ -3447,110 +3550,132 @@ namespace OpenSim.Region.Framework.Scenes
         {
 //            CheckHeartbeat();
             bool isChildAgent = false;
-            ScenePresence avatar = GetScenePresence(agentID);
+            AgentCircuitData acd;
 
-            if (avatar == null)
+            lock (m_removeClientLock)
             {
-                m_log.WarnFormat(
-                    "[SCENE]: Called RemoveClient() with agent ID {0} but no such presence is in the scene.", agentID);
-
-                return;
-            }
-
-            try
-            {
-                isChildAgent = avatar.IsChildAgent;
-
-                m_log.DebugFormat(
-                    "[SCENE]: Removing {0} agent {1} {2} from {3}",
-                    (isChildAgent ? "child" : "root"), avatar.Name, agentID, RegionInfo.RegionName);
+                acd = m_authenticateHandler.GetAgentCircuitData(agentID);
 
-                // Don't do this to root agents, it's not nice for the viewer
-                if (closeChildAgents && isChildAgent)
+                if (acd == null)
                 {
-                    // Tell a single agent to disconnect from the region.
-                    IEventQueue eq = RequestModuleInterface<IEventQueue>();
-                    if (eq != null)
-                    {
-                        eq.DisableSimulator(RegionInfo.RegionHandle, avatar.UUID);
-                    }
-                    else
-                    {
-                        avatar.ControllingClient.SendShutdownConnectionNotice();
-                    }
+                    m_log.ErrorFormat("[SCENE]: No agent circuit found for {0}, aborting Scene.RemoveClient", agentID);
+                    return;
                 }
-
-                // Only applies to root agents.
-                if (avatar.ParentID != 0)
+                else
                 {
-                    avatar.StandUp();
+                    // We remove the acd up here to avoid later race conditions if two RemoveClient() calls occurred
+                    // simultaneously.
+                    // We also need to remove by agent ID since NPCs will have no circuit code.
+                    m_authenticateHandler.RemoveCircuit(agentID);
                 }
+            }
 
-                m_sceneGraph.removeUserCount(!isChildAgent);
-
-                // TODO: We shouldn't use closeChildAgents here - it's being used by the NPC module to stop
-                // unnecessary operations.  This should go away once NPCs have no accompanying IClientAPI
-                if (closeChildAgents && CapsModule != null)
-                    CapsModule.RemoveCaps(agentID);
-
-                // REFACTORING PROBLEM -- well not really a problem, but just to point out that whatever
-                // this method is doing is HORRIBLE!!!
-                avatar.Scene.NeedSceneCacheClear(avatar.UUID);
-
-                if (closeChildAgents && !isChildAgent)
+            lock (acd)
+            {
+                ScenePresence avatar = GetScenePresence(agentID);
+    
+                if (avatar == null)
                 {
-                    List<ulong> regions = avatar.KnownRegionHandles;
-                    regions.Remove(RegionInfo.RegionHandle);
-                    m_sceneGridService.SendCloseChildAgentConnections(agentID, regions);
+                    m_log.WarnFormat(
+                        "[SCENE]: Called RemoveClient() with agent ID {0} but no such presence is in the scene.", agentID);
+    
+                    return;
                 }
-
-                m_eventManager.TriggerClientClosed(agentID, this);
-                m_eventManager.TriggerOnRemovePresence(agentID);
-
-                if (!isChildAgent)
+    
+                try
                 {
-                    if (AttachmentsModule != null)
+                    isChildAgent = avatar.IsChildAgent;
+
+                    m_log.DebugFormat(
+                        "[SCENE]: Removing {0} agent {1} {2} from {3}",
+                        (isChildAgent ? "child" : "root"), avatar.Name, agentID, RegionInfo.RegionName);
+    
+                    // Don't do this to root agents, it's not nice for the viewer
+                    if (closeChildAgents && isChildAgent)
                     {
-                        AttachmentsModule.DeRezAttachments(avatar);
+                        // Tell a single agent to disconnect from the region.
+                        IEventQueue eq = RequestModuleInterface<IEventQueue>();
+                        if (eq != null)
+                        {
+                            eq.DisableSimulator(RegionInfo.RegionHandle, avatar.UUID);
+                        }
+                        else
+                        {
+                            avatar.ControllingClient.SendShutdownConnectionNotice();
+                        }
                     }
-
-                    ForEachClient(
-                        delegate(IClientAPI client)
+    
+                    // Only applies to root agents.
+                    if (avatar.ParentID != 0)
+                    {
+                        avatar.StandUp();
+                    }
+    
+                    m_sceneGraph.removeUserCount(!isChildAgent);
+    
+                    // TODO: We shouldn't use closeChildAgents here - it's being used by the NPC module to stop
+                    // unnecessary operations.  This should go away once NPCs have no accompanying IClientAPI
+                    if (closeChildAgents && CapsModule != null)
+                        CapsModule.RemoveCaps(agentID);
+    
+//                    // REFACTORING PROBLEM -- well not really a problem, but just to point out that whatever
+//                    // this method is doing is HORRIBLE!!!
+                    // Commented pending deletion since this method no longer appears to do anything at all
+//                    avatar.Scene.NeedSceneCacheClear(avatar.UUID);
+    
+                    if (closeChildAgents && !isChildAgent)
+                    {
+                        List<ulong> regions = avatar.KnownRegionHandles;
+                        regions.Remove(RegionInfo.RegionHandle);
+                        m_sceneGridService.SendCloseChildAgentConnections(agentID, regions);
+                    }
+    
+                    m_eventManager.TriggerClientClosed(agentID, this);
+                    m_eventManager.TriggerOnRemovePresence(agentID);
+    
+                    if (!isChildAgent)
+                    {
+                        if (AttachmentsModule != null)
                         {
-                            //We can safely ignore null reference exceptions.  It means the avatar is dead and cleaned up anyway
-                            try { client.SendKillObject(avatar.RegionHandle, new List<uint> { avatar.LocalId }); }
-                            catch (NullReferenceException) { }
-                        });
-                }
-
-                // It's possible for child agents to have transactions if changes are being made cross-border.
-                if (AgentTransactionsModule != null)
-                    AgentTransactionsModule.RemoveAgentAssetTransactions(agentID);
+                            AttachmentsModule.DeRezAttachments(avatar);
+                        }
 
-                m_authenticateHandler.RemoveCircuit(avatar.ControllingClient.CircuitCode);
-                m_log.Debug("[Scene] The avatar has left the building");
-            }
-            catch (Exception e)
-            {
-                m_log.Error(
-                    string.Format("[SCENE]: Exception removing {0} from {1}.  Cleaning up.  Exception ", avatar.Name, Name), e);
-            }
-            finally
-            {
-                try
-                {
-                    // Always clean these structures up so that any failure above doesn't cause them to remain in the
-                    // scene with possibly bad effects (e.g. continually timing out on unacked packets and triggering
-                    // the same cleanup exception continually.
-                    m_sceneGraph.RemoveScenePresence(agentID);
-                    m_clientManager.Remove(agentID);
+                        ForEachClient(
+                            delegate(IClientAPI client)
+                            {
+                                //We can safely ignore null reference exceptions.  It means the avatar is dead and cleaned up anyway
+                                try { client.SendKillObject(avatar.RegionHandle, new List<uint> { avatar.LocalId }); }
+                                catch (NullReferenceException) { }
+                            });
+                    }
     
-                    avatar.Close();
+                    // It's possible for child agents to have transactions if changes are being made cross-border.
+                    if (AgentTransactionsModule != null)
+                        AgentTransactionsModule.RemoveAgentAssetTransactions(agentID);
+                    m_log.Debug("[Scene] The avatar has left the building");
                 }
                 catch (Exception e)
                 {
                     m_log.Error(
-                        string.Format("[SCENE]: Exception in final clean up of {0} in {1}.  Exception ", avatar.Name, Name), e);
+                        string.Format("[SCENE]: Exception removing {0} from {1}.  Cleaning up.  Exception ", avatar.Name, Name), e);
+                }
+                finally
+                {
+                    try
+                    {
+                        // Always clean these structures up so that any failure above doesn't cause them to remain in the
+                        // scene with possibly bad effects (e.g. continually timing out on unacked packets and triggering
+                        // the same cleanup exception continually.
+                        m_sceneGraph.RemoveScenePresence(agentID);
+                        m_clientManager.Remove(agentID);
+        
+                        avatar.Close();
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.Error(
+                            string.Format("[SCENE]: Exception in final clean up of {0} in {1}.  Exception ", avatar.Name, Name), e);
+                    }
                 }
             }
 
@@ -3609,11 +3734,9 @@ namespace OpenSim.Region.Framework.Scenes
 
         /// <summary>
         /// Do the work necessary to initiate a new user connection for a particular scene.
-        /// At the moment, this consists of setting up the caps infrastructure
-        /// The return bool should allow for connections to be refused, but as not all calling paths
-        /// take proper notice of it let, we allowed banned users in still.
         /// </summary>
         /// <param name="agent">CircuitData of the agent who is connecting</param>
+        /// <param name="teleportFlags"></param>
         /// <param name="reason">Outputs the reason for the false response on this string</param>
         /// <returns>True if the region accepts this agent.  False if it does not.  False will 
         /// also return a reason.</returns>
@@ -3624,10 +3747,20 @@ namespace OpenSim.Region.Framework.Scenes
 
         /// <summary>
         /// Do the work necessary to initiate a new user connection for a particular scene.
-        /// At the moment, this consists of setting up the caps infrastructure
+        /// </summary>
+        /// <remarks>
+        /// The return bool should allow for connections to be refused, but as not all calling paths
+        /// take proper notice of it yet, we still allowed banned users in.
+        ///
+        /// At the moment this method consists of setting up the caps infrastructure
         /// The return bool should allow for connections to be refused, but as not all calling paths
         /// take proper notice of it let, we allowed banned users in still.
-        /// </summary>
+        ///
+        /// This method is called by the login service (in the case of login) or another simulator (in the case of region
+        /// cross or teleport) to initiate the connection.  It is not triggered by the viewer itself - the connection
+        /// is activated later when the viewer sends the initial UseCircuitCodePacket UDP packet (in the case of
+        /// the LLUDP stack).
+        /// </remarks>
         /// <param name="agent">CircuitData of the agent who is connecting</param>
         /// <param name="reason">Outputs the reason for the false response on this string</param>
         /// <param name="requirePresenceLookup">True for normal presence. False for NPC
@@ -3726,83 +3859,86 @@ namespace OpenSim.Region.Framework.Scenes
                     "[SCENE]: Existing root scene presence detected for {0} {1} in {2} when connecting.  Removing existing presence.",
                     sp.Name, sp.UUID, RegionInfo.RegionName);
 
-                sp.ControllingClient.Close();
+                sp.ControllingClient.Close(true, true);
                 sp = null;
             }
 
-
-            //On login test land permisions
-            if (vialogin)
+            lock (agent)
             {
-                IUserAccountCacheModule cache = RequestModuleInterface<IUserAccountCacheModule>();
-                if (cache != null)
-                    cache.Remove(agent.firstname + " " + agent.lastname);
-                if (!TestLandRestrictions(agent.AgentID, out reason, ref agent.startpos.X, ref agent.startpos.Y))
+                //On login test land permisions
+                if (vialogin)
                 {
-                    m_log.DebugFormat("[CONNECTION BEGIN]: Denying access to {0} due to no land access", agent.AgentID.ToString());
-                    return false;
+                    IUserAccountCacheModule cache = RequestModuleInterface<IUserAccountCacheModule>();
+                    if (cache != null)
+                        cache.Remove(agent.firstname + " " + agent.lastname);
+                    if (!TestLandRestrictions(agent.AgentID, out reason, ref agent.startpos.X, ref agent.startpos.Y))
+                    {
+                        m_log.DebugFormat("[CONNECTION BEGIN]: Denying access to {0} due to no land access", agent.AgentID.ToString());
+                        return false;
+                    }
                 }
-            }
 
-            if (sp == null) // We don't have an [child] agent here already
-            {
-                if (requirePresenceLookup)
+                if (sp == null) // We don't have an [child] agent here already
                 {
-                    try
+                    if (requirePresenceLookup)
                     {
-                        if (!VerifyUserPresence(agent, out reason))
+                        try
+                        {
+                            if (!VerifyUserPresence(agent, out reason))
+                                return false;
+                        } catch (Exception e)
+                        {
+                            m_log.ErrorFormat(
+                                "[SCENE]: Exception verifying presence {0}{1}", e.Message, e.StackTrace);
                             return false;
-                    } catch (Exception e)
+                        }
+                    }
+
+                    try
+                    {
+                        // Always check estate if this is a login. Always
+                        // check if banned regions are to be blacked out.
+                        if (vialogin || (!m_seeIntoBannedRegion))
+                        {
+                            if (!AuthorizeUser(agent, out reason))
+                                return false;
+                        }
+                    }
+                    catch (Exception e)
                     {
                         m_log.ErrorFormat(
-                            "[SCENE]: Exception verifying presence {0}{1}", e.Message, e.StackTrace);
+                            "[SCENE]: Exception authorizing user {0}{1}", e.Message, e.StackTrace);
                         return false;
                     }
-                }
 
-                try
-                {
-                    // Always check estate if this is a login. Always
-                    // check if banned regions are to be blacked out.
-                    if (vialogin || (!m_seeIntoBannedRegion))
+                    m_log.InfoFormat(
+                        "[SCENE]: Region {0} authenticated and authorized incoming {1} agent {2} {3} {4} (circuit code {5})",
+                        RegionInfo.RegionName, (agent.child ? "child" : "root"), agent.firstname, agent.lastname,
+                        agent.AgentID, agent.circuitcode);
+
+                    if (CapsModule != null)
                     {
-                        if (!AuthorizeUser(agent, out reason))
-                            return false;
+                        CapsModule.SetAgentCapsSeeds(agent);
+                        CapsModule.CreateCaps(agent.AgentID);
                     }
                 }
-                catch (Exception e)
+                else
                 {
-                    m_log.ErrorFormat(
-                        "[SCENE]: Exception authorizing user {0}{1}", e.Message, e.StackTrace);
-                    return false;
-                }
-
-                m_log.InfoFormat(
-                    "[SCENE]: Region {0} authenticated and authorized incoming {1} agent {2} {3} {4} (circuit code {5})",
-                    RegionInfo.RegionName, (agent.child ? "child" : "root"), agent.firstname, agent.lastname,
-                    agent.AgentID, agent.circuitcode);
+                    // Let the SP know how we got here. This has a lot of interesting
+                    // uses down the line.
+                    sp.TeleportFlags = (TPFlags)teleportFlags;
 
-                if (CapsModule != null)
-                {
-                    CapsModule.SetAgentCapsSeeds(agent);
-                    CapsModule.CreateCaps(agent.AgentID);
-                }
-            } else
-            {
-                // Let the SP know how we got here. This has a lot of interesting
-                // uses down the line.
-                sp.TeleportFlags = (TPFlags)teleportFlags;
+                    if (sp.IsChildAgent)
+                    {
+                        m_log.DebugFormat(
+                            "[SCENE]: Adjusting known seeds for existing agent {0} in {1}",
+                            agent.AgentID, RegionInfo.RegionName);
 
-                if (sp.IsChildAgent)
-                {
-                    m_log.DebugFormat(
-                        "[SCENE]: Adjusting known seeds for existing agent {0} in {1}",
-                        agent.AgentID, RegionInfo.RegionName);
+                        sp.AdjustKnownSeeds();
 
-                    sp.AdjustKnownSeeds();
-                    
-                    if (CapsModule != null)
-                        CapsModule.SetAgentCapsSeeds(agent);
+                        if (CapsModule != null)
+                            CapsModule.SetAgentCapsSeeds(agent);
+                    }
                 }
             }
 
@@ -4233,8 +4369,9 @@ namespace OpenSim.Region.Framework.Scenes
                 return false;
             }
 
-            // We have to wait until the viewer contacts this region after receiving EAC.
-            // That calls AddNewClient, which finally creates the ScenePresence
+            // We have to wait until the viewer contacts this region
+            // after receiving the EnableSimulator HTTP Event Queue message.  This triggers the viewer to send
+            // a UseCircuitCode packet which in turn calls AddNewClient which finally creates the ScenePresence.
             ScenePresence childAgentUpdate = WaitGetScenePresence(cAgentData.AgentID);
 
             if (childAgentUpdate != null)
@@ -4329,15 +4466,18 @@ namespace OpenSim.Region.Framework.Scenes
         /// Tell a single agent to disconnect from the region.
         /// </summary>
         /// <param name="agentID"></param>
-        /// <param name="childOnly"></param>
-        public bool IncomingCloseAgent(UUID agentID, bool childOnly)
+        /// <param name="force">
+        /// Force the agent to close even if it might be in the middle of some other operation.  You do not want to
+        /// force unless you are absolutely sure that the agent is dead and a normal close is not working.
+        /// </param>
+        public bool IncomingCloseAgent(UUID agentID, bool force)
         {
             //m_log.DebugFormat("[SCENE]: Processing incoming close agent for {0}", agentID);
 
             ScenePresence presence = m_sceneGraph.GetScenePresence(agentID);
             if (presence != null)
             {
-                presence.ControllingClient.Close(false);
+                presence.ControllingClient.Close(force, force);
                 return true;
             }
 
@@ -4543,6 +4683,16 @@ namespace OpenSim.Region.Framework.Scenes
             return LandChannel.GetLandObject(x, y).LandData;
         }
 
+        /// <summary>
+        /// Get LandData by position.
+        /// </summary>
+        /// <param name="pos"></param>
+        /// <returns></returns>
+        public LandData GetLandData(Vector3 pos)
+        {
+            return GetLandData(pos.X, pos.Y);
+        }
+
         public LandData GetLandData(uint x, uint y)
         {
             m_log.DebugFormat("[SCENE]: returning land for {0},{1}", x, y);
@@ -4773,13 +4923,24 @@ namespace OpenSim.Region.Framework.Scenes
         /// Get a group via its UUID
         /// </summary>
         /// <param name="fullID"></param>
-        /// <returns>null if no group with that name exists</returns>
+        /// <returns>null if no group with that id exists</returns>
         public SceneObjectGroup GetSceneObjectGroup(UUID fullID)
         {
             return m_sceneGraph.GetSceneObjectGroup(fullID);
         }
 
         /// <summary>
+        /// Get a group via its local ID
+        /// </summary>
+        /// <remarks>This will only return a group if the local ID matches a root part</remarks>
+        /// <param name="localID"></param>
+        /// <returns>null if no group with that id exists</returns>
+        public SceneObjectGroup GetSceneObjectGroup(uint localID)
+        {
+            return m_sceneGraph.GetSceneObjectGroup(localID);
+        }
+
+        /// <summary>
         /// Get a group by name from the scene (will return the first
         /// found, if there are more than one prim with the same name)
         /// </summary>
@@ -4791,6 +4952,18 @@ namespace OpenSim.Region.Framework.Scenes
         }
 
         /// <summary>
+        /// Attempt to get the SOG via its UUID
+        /// </summary>
+        /// <param name="fullID"></param>
+        /// <param name="sog"></param>
+        /// <returns></returns>
+        public bool TryGetSceneObjectGroup(UUID fullID, out SceneObjectGroup sog)
+        {
+            sog = GetSceneObjectGroup(fullID);
+            return sog != null;
+        }
+
+        /// <summary>
         /// Get a prim by name from the scene (will return the first
         /// found, if there are more than one prim with the same name)
         /// </summary>
@@ -4822,6 +4995,18 @@ namespace OpenSim.Region.Framework.Scenes
         }
 
         /// <summary>
+        /// Attempt to get a prim via its UUID
+        /// </summary>
+        /// <param name="fullID"></param>
+        /// <param name="sop"></param>
+        /// <returns></returns>
+        public bool TryGetSceneObjectPart(UUID fullID, out SceneObjectPart sop)
+        {
+            sop = GetSceneObjectPart(fullID);
+            return sop != null;
+        }
+
+        /// <summary>
         /// Get a scene object group that contains the prim with the given local id
         /// </summary>
         /// <param name="localID"></param>
@@ -4915,14 +5100,15 @@ namespace OpenSim.Region.Framework.Scenes
                 client.SendRegionHandle(regionID, handle);
         }
 
-        public bool NeedSceneCacheClear(UUID agentID)
-        {
-            IInventoryTransferModule inv = RequestModuleInterface<IInventoryTransferModule>();
-            if (inv == null)
-                return true;
-
-            return inv.NeedSceneCacheClear(agentID, this);
-        }
+// Commented pending deletion since this method no longer appears to do anything at all
+//        public bool NeedSceneCacheClear(UUID agentID)
+//        {
+//            IInventoryTransferModule inv = RequestModuleInterface<IInventoryTransferModule>();
+//            if (inv == null)
+//                return true;
+//
+//            return inv.NeedSceneCacheClear(agentID, this);
+//        }
 
         public void CleanTempObjects()
         {
@@ -5876,6 +6062,9 @@ Environment.Exit(1);
 
         public string GetExtraSetting(string name)
         {
+            if (m_extraSettings == null)
+                return String.Empty;
+
             string val;
 
             if (!m_extraSettings.TryGetValue(name, out val))
@@ -5886,6 +6075,9 @@ Environment.Exit(1);
 
         public void StoreExtraSetting(string name, string val)
         {
+            if (m_extraSettings == null)
+                return;
+
             string oldVal;
 
             if (m_extraSettings.TryGetValue(name, out oldVal))
@@ -5903,6 +6095,9 @@ Environment.Exit(1);
 
         public void RemoveExtraSetting(string name)
         {
+            if (m_extraSettings == null)
+                return;
+
             if (!m_extraSettings.ContainsKey(name))
                 return;
 
diff --git a/OpenSim/Region/Framework/Scenes/SceneGraph.cs b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
index af13b46..e599e90 100644
--- a/OpenSim/Region/Framework/Scenes/SceneGraph.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
@@ -342,7 +342,7 @@ namespace OpenSim.Region.Framework.Scenes
         public bool AddNewSceneObject(
             SceneObjectGroup sceneObject, bool attachToBackup, Vector3? pos, Quaternion? rot, Vector3 vel)
         {
-            AddNewSceneObject(sceneObject, true, false);
+            AddNewSceneObject(sceneObject, attachToBackup, false);
 
             if (pos != null)
                 sceneObject.AbsolutePosition = (Vector3)pos;
@@ -421,12 +421,9 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     Vector3 scale = part.Shape.Scale;
 
-                    if (scale.X > m_parentScene.m_maxNonphys)
-                        scale.X = m_parentScene.m_maxNonphys;
-                    if (scale.Y > m_parentScene.m_maxNonphys)
-                        scale.Y = m_parentScene.m_maxNonphys;
-                    if (scale.Z > m_parentScene.m_maxNonphys)
-                        scale.Z = m_parentScene.m_maxNonphys;
+                    scale.X = Math.Max(m_parentScene.m_minNonphys, Math.Min(m_parentScene.m_maxNonphys, scale.X));
+                    scale.Y = Math.Max(m_parentScene.m_minNonphys, Math.Min(m_parentScene.m_maxNonphys, scale.Y));
+                    scale.Z = Math.Max(m_parentScene.m_minNonphys, Math.Min(m_parentScene.m_maxNonphys, scale.Z));
 
                     part.Shape.Scale = scale;
                 }
@@ -1066,6 +1063,30 @@ namespace OpenSim.Region.Framework.Scenes
         }
 
         /// <summary>
+        /// Get a group in the scene
+        /// </summary>
+        /// <remarks>
+        /// This will only return a group if the local ID matches the root part, not other parts.
+        /// </remarks>
+        /// <param name="localID">Local id of the root part of the group</param>
+        /// <returns>null if no such group was found</returns>
+        protected internal SceneObjectGroup GetSceneObjectGroup(uint localID)
+        {
+            lock (SceneObjectGroupsByLocalPartID)
+            {
+                if (SceneObjectGroupsByLocalPartID.ContainsKey(localID))
+                {
+                    SceneObjectGroup so = SceneObjectGroupsByLocalPartID[localID];
+
+                    if (so.LocalId == localID)
+                        return so;
+                }
+            }
+
+            return null;
+        }
+
+        /// <summary>
         /// Get a group by name from the scene (will return the first
         /// found, if there are more than one prim with the same name)
         /// </summary>
diff --git a/OpenSim/Region/Framework/Scenes/SceneManager.cs b/OpenSim/Region/Framework/Scenes/SceneManager.cs
index f1b09ca..dba3a61 100644
--- a/OpenSim/Region/Framework/Scenes/SceneManager.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneManager.cs
@@ -92,7 +92,11 @@ namespace OpenSim.Region.Framework.Scenes
         private static SceneManager m_instance = null;
         public static SceneManager Instance
         { 
-            get { return m_instance; } 
+            get {
+                if (m_instance == null)
+                    m_instance = new SceneManager();
+                return m_instance;
+            } 
         }
 
         private readonly DoubleDictionary<UUID, string, Scene> m_localScenes = new DoubleDictionary<UUID, string, Scene>();
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index ee61de6..74d2629 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -2747,6 +2747,25 @@ namespace OpenSim.Region.Framework.Scenes
             if (objectGroup == this)
                 return;
 
+            // If the configured linkset capacity is greater than zero,
+            // and the new linkset would have a prim count higher than this
+            // value, do not link it.
+            if (m_scene.m_linksetCapacity > 0 &&
+                    (PrimCount + objectGroup.PrimCount) >
+                    m_scene.m_linksetCapacity)
+            {
+                m_log.DebugFormat(
+                    "[SCENE OBJECT GROUP]: Cannot link group with root" +
+                    " part {0}, {1} ({2} prims) to group with root part" +
+                    " {3}, {4} ({5} prims) because the new linkset" +
+                    " would exceed the configured maximum of {6}",
+                    objectGroup.RootPart.Name, objectGroup.RootPart.UUID,
+                    objectGroup.PrimCount, RootPart.Name, RootPart.UUID,
+                    PrimCount, m_scene.m_linksetCapacity);
+
+                return;
+            }
+
             // 'linkPart' == the root of the group being linked into this group
             SceneObjectPart linkPart = objectGroup.m_rootPart;
 
@@ -3492,27 +3511,33 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="scale"></param>
         public void GroupResize(Vector3 scale)
         {
-            scale.X = Math.Min(scale.X, Scene.m_maxNonphys);
-            scale.Y = Math.Min(scale.Y, Scene.m_maxNonphys);
-            scale.Z = Math.Min(scale.Z, Scene.m_maxNonphys);
+//            m_log.DebugFormat(
+//                "[SCENE OBJECT GROUP]: Group resizing {0} {1} from {2} to {3}", Name, LocalId, RootPart.Scale, scale);
 
             PhysicsActor pa = m_rootPart.PhysActor;
 
-            if (pa != null && pa.IsPhysical)
+            if (Scene != null)
             {
-                scale.X = Math.Min(scale.X, Scene.m_maxPhys);
-                scale.Y = Math.Min(scale.Y, Scene.m_maxPhys);
-                scale.Z = Math.Min(scale.Z, Scene.m_maxPhys);
+                scale.X = Math.Max(Scene.m_minNonphys, Math.Min(Scene.m_maxNonphys, scale.X));
+                scale.Y = Math.Max(Scene.m_minNonphys, Math.Min(Scene.m_maxNonphys, scale.Y));
+                scale.Z = Math.Max(Scene.m_minNonphys, Math.Min(Scene.m_maxNonphys, scale.Z));
+    
+                if (pa != null && pa.IsPhysical)
+                {
+                    scale.X = Math.Max(Scene.m_minPhys, Math.Min(Scene.m_maxPhys, scale.X));
+                    scale.Y = Math.Max(Scene.m_minPhys, Math.Min(Scene.m_maxPhys, scale.Y));
+                    scale.Z = Math.Max(Scene.m_minPhys, Math.Min(Scene.m_maxPhys, scale.Z));
+                }
             }
 
             float x = (scale.X / RootPart.Scale.X);
             float y = (scale.Y / RootPart.Scale.Y);
             float z = (scale.Z / RootPart.Scale.Z);
 
-            SceneObjectPart[] parts;
-            if (x > 1.0f || y > 1.0f || z > 1.0f)
+            SceneObjectPart[] parts = m_parts.GetArray();
+
+            if (Scene != null & (x > 1.0f || y > 1.0f || z > 1.0f))
             {
-                parts = m_parts.GetArray();
                 for (int i = 0; i < parts.Length; i++)
                 {
                     SceneObjectPart obPart = parts[i];
@@ -3525,7 +3550,7 @@ namespace OpenSim.Region.Framework.Scenes
 
                         if (pa != null && pa.IsPhysical)
                         {
-                            if (oldSize.X * x > m_scene.m_maxPhys)
+                            if (oldSize.X * x > Scene.m_maxPhys)
                             {
                                 f = m_scene.m_maxPhys / oldSize.X;
                                 a = f / x;
@@ -3533,8 +3558,16 @@ namespace OpenSim.Region.Framework.Scenes
                                 y *= a;
                                 z *= a;
                             }
+                            else if (oldSize.X * x < Scene.m_minPhys)
+                            {
+                                f = m_scene.m_minPhys / oldSize.X;
+                                a = f / x;
+                                x *= a;
+                                y *= a;
+                                z *= a;
+                            }
 
-                            if (oldSize.Y * y > m_scene.m_maxPhys)
+                            if (oldSize.Y * y > Scene.m_maxPhys)
                             {
                                 f = m_scene.m_maxPhys / oldSize.Y;
                                 a = f / y;
@@ -3542,8 +3575,16 @@ namespace OpenSim.Region.Framework.Scenes
                                 y *= a;
                                 z *= a;
                             }
+                            else if (oldSize.Y * y < Scene.m_minPhys)
+                            {
+                                f = m_scene.m_minPhys / oldSize.Y;
+                                a = f / y;
+                                x *= a;
+                                y *= a;
+                                z *= a;
+                            }
 
-                            if (oldSize.Z * z > m_scene.m_maxPhys)
+                            if (oldSize.Z * z > Scene.m_maxPhys)
                             {
                                 f = m_scene.m_maxPhys / oldSize.Z;
                                 a = f / z;
@@ -3551,10 +3592,18 @@ namespace OpenSim.Region.Framework.Scenes
                                 y *= a;
                                 z *= a;
                             }
+                            else if (oldSize.Z * z < Scene.m_minPhys)
+                            {
+                                f = m_scene.m_minPhys / oldSize.Z;
+                                a = f / z;
+                                x *= a;
+                                y *= a;
+                                z *= a;
+                            }
                         }
                         else
                         {
-                            if (oldSize.X * x > m_scene.m_maxNonphys)
+                            if (oldSize.X * x > Scene.m_maxNonphys)
                             {
                                 f = m_scene.m_maxNonphys / oldSize.X;
                                 a = f / x;
@@ -3562,8 +3611,16 @@ namespace OpenSim.Region.Framework.Scenes
                                 y *= a;
                                 z *= a;
                             }
+                            else if (oldSize.X * x < Scene.m_minNonphys)
+                            {
+                                f = m_scene.m_minNonphys / oldSize.X;
+                                a = f / x;
+                                x *= a;
+                                y *= a;
+                                z *= a;
+                            }
 
-                            if (oldSize.Y * y > m_scene.m_maxNonphys)
+                            if (oldSize.Y * y > Scene.m_maxNonphys)
                             {
                                 f = m_scene.m_maxNonphys / oldSize.Y;
                                 a = f / y;
@@ -3571,8 +3628,16 @@ namespace OpenSim.Region.Framework.Scenes
                                 y *= a;
                                 z *= a;
                             }
+                            else if (oldSize.Y * y < Scene.m_minNonphys)
+                            {
+                                f = m_scene.m_minNonphys / oldSize.Y;
+                                a = f / y;
+                                x *= a;
+                                y *= a;
+                                z *= a;
+                            }
 
-                            if (oldSize.Z * z > m_scene.m_maxNonphys)
+                            if (oldSize.Z * z > Scene.m_maxNonphys)
                             {
                                 f = m_scene.m_maxNonphys / oldSize.Z;
                                 a = f / z;
@@ -3580,6 +3645,14 @@ namespace OpenSim.Region.Framework.Scenes
                                 y *= a;
                                 z *= a;
                             }
+                            else if (oldSize.Z * z < Scene.m_minNonphys)
+                            {
+                                f = m_scene.m_minNonphys / oldSize.Z;
+                                a = f / z;
+                                x *= a;
+                                y *= a;
+                                z *= a;
+                            }
                         }
                     }
                 }
@@ -3592,7 +3665,6 @@ namespace OpenSim.Region.Framework.Scenes
 
             RootPart.Resize(prevScale);
 
-            parts = m_parts.GetArray();
             for (int i = 0; i < parts.Length; i++)
             {
                 SceneObjectPart obPart = parts[i];
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index 165dd85..2191cfa 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -790,7 +790,7 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                     catch (Exception e)
                     {
-                        m_log.Error("[SCENEOBJECTPART]: GROUP POSITION. " + e.Message);
+                        m_log.ErrorFormat("[SCENEOBJECTPART]: GROUP POSITION. {0}", e);
                     }
                 }
             }
@@ -2864,6 +2864,35 @@ namespace OpenSim.Region.Framework.Scenes
                 SendLandCollisionEvent(scriptEvents.land_collision_end, ParentGroup.Scene.EventManager.TriggerScriptLandCollidingEnd);
         }
 
+        // The Collision sounds code calls this
+        public void SendCollisionSound(UUID soundID, double volume, Vector3 position)
+        {
+            if (soundID == UUID.Zero)
+                return;
+
+            ISoundModule soundModule = ParentGroup.Scene.RequestModuleInterface<ISoundModule>();
+            if (soundModule == null)
+                return;
+
+            if (volume > 1)
+                volume = 1;
+            if (volume < 0)
+                volume = 0;
+
+            int now = Util.EnvironmentTickCount();
+            if(Util.EnvironmentTickCountSubtract(now,LastColSoundSentTime) <200)
+                return;
+
+            LastColSoundSentTime = now;
+
+            UUID ownerID = OwnerID;
+            UUID objectID = ParentGroup.RootPart.UUID;
+            UUID parentID = ParentGroup.UUID;
+            ulong regionHandle = ParentGroup.Scene.RegionInfo.RegionHandle;
+
+            soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position, regionHandle, 0 );
+        }
+
         public void PhysicsOutOfBounds(Vector3 pos)
         {
             m_log.Error("[PHYSICS]: Physical Object went out of bounds.");
@@ -2895,38 +2924,6 @@ namespace OpenSim.Region.Framework.Scenes
             ScheduleTerseUpdate();
         }
 
-        public void PreloadSound(string sound)
-        {
-            // UUID ownerID = OwnerID;
-            UUID objectID = ParentGroup.RootPart.UUID;
-            UUID soundID = UUID.Zero;
-
-            if (!UUID.TryParse(sound, out soundID))
-            {
-                //Trys to fetch sound id from prim's inventory.
-                //Prim's inventory doesn't support non script items yet
-                
-                TaskInventory.LockItemsForRead(true);
-
-                foreach (KeyValuePair<UUID, TaskInventoryItem> item in TaskInventory)
-                {
-                    if (item.Value.Name == sound)
-                    {
-                        soundID = item.Value.ItemID;
-                        break;
-                    }
-                }
-
-                TaskInventory.LockItemsForRead(false);
-            }
-
-            ParentGroup.Scene.ForEachRootScenePresence(delegate(ScenePresence sp)
-            {
-                if (!(Util.GetDistanceTo(sp.AbsolutePosition, AbsolutePosition) >= 100))
-                    sp.ControllingClient.SendPreLoadSound(objectID, objectID, soundID);
-            });
-        }
-
         public void RemFlag(PrimFlags flag)
         {
             // PrimFlags prevflag = Flags;
@@ -2979,17 +2976,20 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="scale"></param>
         public void Resize(Vector3 scale)
         {
-            scale.X = Math.Min(scale.X, ParentGroup.Scene.m_maxNonphys);
-            scale.Y = Math.Min(scale.Y, ParentGroup.Scene.m_maxNonphys);
-            scale.Z = Math.Min(scale.Z, ParentGroup.Scene.m_maxNonphys);
-
             PhysicsActor pa = PhysActor;
 
-            if (pa != null && pa.IsPhysical)
+            if (ParentGroup.Scene != null)
             {
-                scale.X = Math.Min(scale.X, ParentGroup.Scene.m_maxPhys);
-                scale.Y = Math.Min(scale.Y, ParentGroup.Scene.m_maxPhys);
-                scale.Z = Math.Min(scale.Z, ParentGroup.Scene.m_maxPhys);
+                scale.X = Math.Max(ParentGroup.Scene.m_minNonphys, Math.Min(ParentGroup.Scene.m_maxNonphys, scale.X));
+                scale.Y = Math.Max(ParentGroup.Scene.m_minNonphys, Math.Min(ParentGroup.Scene.m_maxNonphys, scale.Y));
+                scale.Z = Math.Max(ParentGroup.Scene.m_minNonphys, Math.Min(ParentGroup.Scene.m_maxNonphys, scale.Z));
+    
+                if (pa != null && pa.IsPhysical)
+                {
+                    scale.X = Math.Max(ParentGroup.Scene.m_minPhys, Math.Min(ParentGroup.Scene.m_maxPhys, scale.X));
+                    scale.Y = Math.Max(ParentGroup.Scene.m_minPhys, Math.Min(ParentGroup.Scene.m_maxPhys, scale.Y));
+                    scale.Z = Math.Max(ParentGroup.Scene.m_minPhys, Math.Min(ParentGroup.Scene.m_maxPhys, scale.Z));
+                }
             }
 
 //            m_log.DebugFormat("[SCENE OBJECT PART]: Resizing {0} {1} to {2}", Name, LocalId, scale);
@@ -3086,7 +3086,7 @@ namespace OpenSim.Region.Framework.Scenes
             //                UUID, Name, TimeStampFull);
 
             if (ParentGroup.Scene != null)
-                ParentGroup.Scene.EventManager.TriggerSceneObjectPartUpdated(this);
+                ParentGroup.Scene.EventManager.TriggerSceneObjectPartUpdated(this, true);
         }
 
         /// <summary>
@@ -3120,7 +3120,7 @@ namespace OpenSim.Region.Framework.Scenes
             }
 
             if (ParentGroup.Scene != null)
-                ParentGroup.Scene.EventManager.TriggerSceneObjectPartUpdated(this);
+                ParentGroup.Scene.EventManager.TriggerSceneObjectPartUpdated(this, false);
         }
 
         public void ScriptSetPhysicsStatus(bool UsePhysics)
@@ -3295,126 +3295,6 @@ namespace OpenSim.Region.Framework.Scenes
         }
 
         /// <summary>
-        /// Trigger or play an attached sound in this part's inventory.
-        /// </summary>
-        /// <param name="sound"></param>
-        /// <param name="volume"></param>
-        /// <param name="triggered"></param>
-        /// <param name="flags"></param>
-        public void SendSound(string sound, double volume, bool triggered, byte flags, float radius, bool useMaster, bool isMaster)
-        {
-            if (volume > 1)
-                volume = 1;
-            if (volume < 0)
-                volume = 0;
-
-            UUID ownerID = OwnerID;
-            UUID objectID = ParentGroup.RootPart.UUID;
-            UUID parentID = ParentGroup.UUID;
-
-            UUID soundID = UUID.Zero;
-            Vector3 position = AbsolutePosition; // region local
-            ulong regionHandle = ParentGroup.Scene.RegionInfo.RegionHandle;
-
-            if (!UUID.TryParse(sound, out soundID))
-            {
-                // search sound file from inventory
-                TaskInventory.LockItemsForRead(true);
-                foreach (KeyValuePair<UUID, TaskInventoryItem> item in TaskInventory)
-                {
-                    if (item.Value.Name == sound && item.Value.Type == (int)AssetType.Sound)
-                    {
-                        soundID = item.Value.ItemID;
-                        break;
-                    }
-                }
-                TaskInventory.LockItemsForRead(false);
-            }
-
-            if (soundID == UUID.Zero)
-                return;
-
-            ISoundModule soundModule = ParentGroup.Scene.RequestModuleInterface<ISoundModule>();
-            if (soundModule != null)
-            {
-                if (useMaster)
-                {
-                    if (isMaster)
-                    {
-                        if (triggered)
-                            soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position, regionHandle, radius);
-                        else
-                            soundModule.PlayAttachedSound(soundID, ownerID, objectID, volume, position, flags, radius);
-                        ParentGroup.PlaySoundMasterPrim = this;
-                        ownerID = OwnerID;
-                        objectID = ParentGroup.RootPart.UUID;
-                        parentID = ParentGroup.UUID;
-                        position = AbsolutePosition; // region local
-                        regionHandle = ParentGroup.Scene.RegionInfo.RegionHandle;
-                        if (triggered)
-                            soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position, regionHandle, radius);
-                        else
-                            soundModule.PlayAttachedSound(soundID, ownerID, objectID, volume, position, flags, radius);
-                        foreach (SceneObjectPart prim in ParentGroup.PlaySoundSlavePrims)
-                        {
-                            ownerID = prim.OwnerID;
-                            objectID = prim.ParentGroup.RootPart.UUID;
-                            parentID = prim.ParentGroup.UUID;
-                            position = prim.AbsolutePosition; // region local
-                            regionHandle = prim.ParentGroup.Scene.RegionInfo.RegionHandle;
-                            if (triggered)
-                                soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position, regionHandle, radius);
-                            else
-                                soundModule.PlayAttachedSound(soundID, ownerID, objectID, volume, position, flags, radius);
-                        }
-                        ParentGroup.PlaySoundSlavePrims.Clear();
-                        ParentGroup.PlaySoundMasterPrim = null;
-                    }
-                    else
-                    {
-                        ParentGroup.PlaySoundSlavePrims.Add(this);
-                    }
-                }
-                else
-                {
-                    if (triggered)
-                        soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position, regionHandle, radius);
-                    else
-                        soundModule.PlayAttachedSound(soundID, ownerID, objectID, volume, position, flags, radius);
-                }
-            }
-        }
-
-        public void SendCollisionSound(UUID soundID, double volume, Vector3 position)
-        {
-            if (soundID == UUID.Zero)
-                return;
-
-            ISoundModule soundModule = ParentGroup.Scene.RequestModuleInterface<ISoundModule>();
-            if (soundModule == null)
-                return;
-
-            if (volume > 1)
-                volume = 1;
-            if (volume < 0)
-                volume = 0;
-
-            int now = Util.EnvironmentTickCount();
-            if(Util.EnvironmentTickCountSubtract(now,LastColSoundSentTime) <200)
-                return;
-
-            LastColSoundSentTime = now;
-
-            UUID ownerID = OwnerID;
-            UUID objectID = ParentGroup.RootPart.UUID;
-            UUID parentID = ParentGroup.UUID;
-            ulong regionHandle = ParentGroup.Scene.RegionInfo.RegionHandle;
-
-            soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position, regionHandle, 0 );
-        }
-
-
-        /// <summary>
         /// Send a terse update to all clients
         /// </summary>
         public void SendTerseUpdateToAllClients()
@@ -3575,23 +3455,32 @@ namespace OpenSim.Region.Framework.Scenes
         }
 
         /// <summary>
-        /// Set the color of prim faces
+        /// Set the color & alpha of prim faces
         /// </summary>
-        /// <param name="color"></param>
         /// <param name="face"></param>
-        public void SetFaceColor(Vector3 color, int face)
+        /// <param name="color"></param>
+        /// <param name="alpha"></param>
+        public void SetFaceColorAlpha(int face, Vector3 color, double ?alpha)
         {
+            Vector3 clippedColor = Util.Clip(color, 0.0f, 1.0f);
+            float clippedAlpha = alpha.HasValue ?
+                Util.Clip((float)alpha.Value, 0.0f, 1.0f) : 0;
+
             // The only way to get a deep copy/ If we don't do this, we can
-            // mever detect color changes further down.
+            // never detect color changes further down.
             Byte[] buf = Shape.Textures.GetBytes();
             Primitive.TextureEntry tex = new Primitive.TextureEntry(buf, 0, buf.Length);
             Color4 texcolor;
             if (face >= 0 && face < GetNumberOfSides())
             {
                 texcolor = tex.CreateFace((uint)face).RGBA;
-                texcolor.R = Util.Clip((float)color.X, 0.0f, 1.0f);
-                texcolor.G = Util.Clip((float)color.Y, 0.0f, 1.0f);
-                texcolor.B = Util.Clip((float)color.Z, 0.0f, 1.0f);
+                texcolor.R = clippedColor.X;
+                texcolor.G = clippedColor.Y;
+                texcolor.B = clippedColor.Z;
+                if (alpha.HasValue)
+                {
+                    texcolor.A = clippedAlpha;
+                }
                 tex.FaceTextures[face].RGBA = texcolor;
                 UpdateTextureEntry(tex.GetBytes());
                 return;
@@ -3603,15 +3492,23 @@ namespace OpenSim.Region.Framework.Scenes
                     if (tex.FaceTextures[i] != null)
                     {
                         texcolor = tex.FaceTextures[i].RGBA;
-                        texcolor.R = Util.Clip((float)color.X, 0.0f, 1.0f);
-                        texcolor.G = Util.Clip((float)color.Y, 0.0f, 1.0f);
-                        texcolor.B = Util.Clip((float)color.Z, 0.0f, 1.0f);
+                        texcolor.R = clippedColor.X;
+                        texcolor.G = clippedColor.Y;
+                        texcolor.B = clippedColor.Z;
+                        if (alpha.HasValue)
+                        {
+                            texcolor.A = clippedAlpha;
+                        }
                         tex.FaceTextures[i].RGBA = texcolor;
                     }
                     texcolor = tex.DefaultTexture.RGBA;
-                    texcolor.R = Util.Clip((float)color.X, 0.0f, 1.0f);
-                    texcolor.G = Util.Clip((float)color.Y, 0.0f, 1.0f);
-                    texcolor.B = Util.Clip((float)color.Z, 0.0f, 1.0f);
+                    texcolor.R = clippedColor.X;
+                    texcolor.G = clippedColor.Y;
+                    texcolor.B = clippedColor.Z;
+                    if (alpha.HasValue)
+                    {
+                        texcolor.A = clippedAlpha;
+                    }
                     tex.DefaultTexture.RGBA = texcolor;
                 }
                 UpdateTextureEntry(tex.GetBytes());
@@ -4899,6 +4796,57 @@ namespace OpenSim.Region.Framework.Scenes
             ScheduleFullUpdate();
         }
 
+        public void UpdateSlice(float begin, float end)
+        {
+            if (end < begin)
+            {
+                float temp = begin;
+                begin = end;
+                end = temp;
+            }
+            end = Math.Min(1f, Math.Max(0f, end));
+            begin = Math.Min(Math.Min(1f, Math.Max(0f, begin)), end - 0.02f);
+            if (begin < 0.02f && end < 0.02f)
+            {
+                begin = 0f;
+                end = 0.02f;
+            }
+
+            ushort uBegin = (ushort)(50000.0 * begin);
+            ushort uEnd = (ushort)(50000.0 * (1f - end));
+            bool updatePossiblyNeeded = false;
+            PrimType primType = GetPrimType();
+            if (primType == PrimType.SPHERE || primType == PrimType.TORUS || primType == PrimType.TUBE || primType == PrimType.RING)
+            {
+                if (m_shape.ProfileBegin != uBegin || m_shape.ProfileEnd != uEnd)
+                {
+                    m_shape.ProfileBegin = uBegin;
+                    m_shape.ProfileEnd = uEnd;
+                    updatePossiblyNeeded = true;
+                }
+            }
+            else if (m_shape.PathBegin != uBegin || m_shape.PathEnd != uEnd)
+            {
+                m_shape.PathBegin = uBegin;
+                m_shape.PathEnd = uEnd;
+                updatePossiblyNeeded = true;
+            }
+
+            if (updatePossiblyNeeded && ParentGroup != null)
+            {
+                ParentGroup.HasGroupChanged = true;
+            }
+            if (updatePossiblyNeeded && PhysActor != null)
+            {
+                PhysActor.Shape = m_shape;
+                ParentGroup.Scene.PhysicsScene.AddPhysicsActorTaint(PhysActor);
+            }
+            if (updatePossiblyNeeded)
+            {
+                ScheduleFullUpdate();
+            }
+        }
+
         /// <summary>
         /// If the part is a sculpt/mesh, retrieve the mesh data and reinsert it into the shape so that the physics
         /// engine can use it.
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
index e010864..3a9a146 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
@@ -97,6 +97,15 @@ namespace OpenSim.Region.Framework.Scenes
                 QueryScriptStates();
             }
         }
+
+        public int Count
+        {
+            get
+            {
+                lock (m_items)
+                    return m_items.Count;
+            }
+        }
         
         /// <summary>
         /// Constructor
@@ -235,31 +244,52 @@ namespace OpenSim.Region.Framework.Scenes
             if (m_part == null || m_part.ParentGroup == null || m_part.ParentGroup.Scene == null)
                 return;
 
-            IScriptModule[] engines = m_part.ParentGroup.Scene.RequestModuleInterfaces<IScriptModule>();
-            if (engines == null) // No engine at all
-                return;
-
             Items.LockItemsForRead(true);
             foreach (TaskInventoryItem item in Items.Values)
             {
                 if (item.InvType == (int)InventoryType.LSL)
                 {
-                    foreach (IScriptModule e in engines)
-                    {
-                        bool running;
-
-                        if (e.HasScript(item.ItemID, out running))
-                        {
-                            item.ScriptRunning = running;
-                            break;
-                        }
-                    }
+                    bool running;
+                    if (TryGetScriptInstanceRunning(m_part.ParentGroup.Scene, item, out running))
+                        item.ScriptRunning = running;
                 }
             }
 
             Items.LockItemsForRead(false);
         }
 
+        public bool TryGetScriptInstanceRunning(UUID itemId, out bool running)
+        {
+            running = false;
+
+            TaskInventoryItem item = GetInventoryItem(itemId);
+
+            if (item == null)
+                return false;
+
+            return TryGetScriptInstanceRunning(m_part.ParentGroup.Scene, item, out running);
+        }
+
+        public static bool TryGetScriptInstanceRunning(Scene scene, TaskInventoryItem item, out bool running)
+        {
+            running = false;
+
+            if (item.InvType != (int)InventoryType.LSL)
+                return false;
+
+            IScriptModule[] engines = scene.RequestModuleInterfaces<IScriptModule>();
+            if (engines == null) // No engine at all
+                return false;
+
+            foreach (IScriptModule e in engines)
+            {
+                if (e.HasScript(item.ItemID, out running))
+                    return true;
+            }
+
+            return false;
+        }
+
         public int CreateScriptInstances(int startParam, bool postOnRez, string engine, int stateSource)
         {
             int scriptsValidForStarting = 0;
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index a8aa551..2c18397 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) Contributors, http://opensimulator.org/
  * See CONTRIBUTORS.TXT for a full list of copyright holders.
  *
@@ -69,14 +69,15 @@ namespace OpenSim.Region.Framework.Scenes
         public ScriptControlled eventControls;
     }
 
-    public delegate void SendCourseLocationsMethod(UUID scene, ScenePresence presence, List<Vector3> coarseLocations, List<UUID> avatarUUIDs);
+    public delegate void SendCoarseLocationsMethod(UUID scene, ScenePresence presence, List<Vector3> coarseLocations, List<UUID> avatarUUIDs);
 
     public class ScenePresence : EntityBase, IScenePresence
     {
 //        ~ScenePresence()
 //        {
-//            m_log.Debug("[SCENE PRESENCE] Destructor called");
+//            m_log.DebugFormat("[SCENE PRESENCE]: Destructor called on {0}", Name);
 //        }
+
         private void TriggerScenePresenceUpdated()
         {
             if (m_scene != null)
@@ -188,7 +189,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public bool SitGround { get; private set; }
 
-        private SendCourseLocationsMethod m_sendCourseLocationsMethod;
+        private SendCoarseLocationsMethod m_sendCoarseLocationsMethod;
 
         //private Vector3 m_requestedSitOffset = new Vector3();
 
@@ -546,7 +547,7 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     try
                     {
-                        PhysicsActor.Velocity = value;
+                        PhysicsActor.TargetVelocity = value;
                     }
                     catch (Exception e)
                     {
@@ -711,7 +712,7 @@ namespace OpenSim.Region.Framework.Scenes
             AttachmentsSyncLock = new Object();
             AllowMovement = true;
             IsChildAgent = true;
-            m_sendCourseLocationsMethod = SendCoarseLocationsDefault;
+            m_sendCoarseLocationsMethod = SendCoarseLocationsDefault;
             Animator = new ScenePresenceAnimator(this);
             PresenceType = type;
             DrawDistance = world.DefaultDrawDistance;
@@ -974,7 +975,9 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 if (wasChild && HasAttachments())
                 {
-                    m_log.DebugFormat("[SCENE PRESENCE]: Restarting scripts in attachments...");
+                    m_log.DebugFormat(
+                        "[SCENE PRESENCE]: Restarting scripts in attachments for {0} in {1}", Name, Scene.Name);
+                    
                     // Resume scripts
                     Util.FireAndForget(delegate(object x) {
                         foreach (SceneObjectGroup sog in m_attachments)
@@ -1530,17 +1533,22 @@ namespace OpenSim.Region.Framework.Scenes
                 bool DCFlagKeyPressed = false;
                 Vector3 agent_control_v3 = Vector3.Zero;
 
-                bool oldflying = Flying;
+                bool newFlying = actor.Flying;
 
                 if (ForceFly)
-                    actor.Flying = true;
+                    newFlying = true;
                 else if (FlyDisabled)
-                    actor.Flying = false;
+                    newFlying = false;
                 else
-                    actor.Flying = ((flags & AgentManager.ControlFlags.AGENT_CONTROL_FLY) != 0);
+                    newFlying = ((flags & AgentManager.ControlFlags.AGENT_CONTROL_FLY) != 0);
 
-                if (actor.Flying != oldflying)
+                if (actor.Flying != newFlying)
+                {
+                    // Note: ScenePresence.Flying is actually fetched from the physical actor
+                    //     so setting PhysActor.Flying here also sets the ScenePresence's value.
+                    actor.Flying = newFlying;
                     update_movementflag = true;
+                }
 
                 if (ParentID == 0)
                 {
@@ -2622,17 +2630,17 @@ namespace OpenSim.Region.Framework.Scenes
 
         public void SendCoarseLocations(List<Vector3> coarseLocations, List<UUID> avatarUUIDs)
         {
-            SendCourseLocationsMethod d = m_sendCourseLocationsMethod;
+            SendCoarseLocationsMethod d = m_sendCoarseLocationsMethod;
             if (d != null)
             {
                 d.Invoke(m_scene.RegionInfo.originRegionID, this, coarseLocations, avatarUUIDs);
             }
         }
 
-        public void SetSendCourseLocationMethod(SendCourseLocationsMethod d)
+        public void SetSendCoarseLocationMethod(SendCoarseLocationsMethod d)
         {
             if (d != null)
-                m_sendCourseLocationsMethod = d;
+                m_sendCoarseLocationsMethod = d;
         }
 
         public void SendCoarseLocationsDefault(UUID sceneId, ScenePresence p, List<Vector3> coarseLocations, List<UUID> avatarUUIDs)
@@ -2836,7 +2844,7 @@ namespace OpenSim.Region.Framework.Scenes
         #region Significant Movement Method
 
         /// <summary>
-        /// This checks for a significant movement and sends a courselocationchange update
+        /// This checks for a significant movement and sends a coarselocationchange update
         /// </summary>
         protected void CheckForSignificantMovement()
         {
@@ -3269,6 +3277,7 @@ namespace OpenSim.Region.Framework.Scenes
             }
             catch { }
             cAgent.DefaultAnim = Animator.Animations.DefaultAnimation;
+            cAgent.AnimState = Animator.Animations.ImplicitDefaultAnimation;
 
             if (Scene.AttachmentsModule != null)
                 Scene.AttachmentsModule.CopyAttachments(this, cAgent);
@@ -3345,6 +3354,8 @@ namespace OpenSim.Region.Framework.Scenes
                 Animator.Animations.FromArray(cAgent.Anims);
             if (cAgent.DefaultAnim != null)
                 Animator.Animations.SetDefaultAnimation(cAgent.DefaultAnim.AnimID, cAgent.DefaultAnim.SequenceNum, UUID.Zero);
+            if (cAgent.AnimState != null)
+                Animator.Animations.SetImplicitDefaultAnimation(cAgent.AnimState.AnimID, cAgent.AnimState.SequenceNum, UUID.Zero);
 
             if (Scene.AttachmentsModule != null)
                 Scene.AttachmentsModule.CopyAttachments(cAgent, this);
@@ -3627,13 +3638,16 @@ namespace OpenSim.Region.Framework.Scenes
         public List<SceneObjectGroup> GetAttachments(uint attachmentPoint)
         {
             List<SceneObjectGroup> attachments = new List<SceneObjectGroup>();
-            
-            lock (m_attachments)
+
+            if (attachmentPoint >= 0)
             {
-                foreach (SceneObjectGroup so in m_attachments)
+                lock (m_attachments)
                 {
-                    if (attachmentPoint == so.AttachmentPoint)
-                        attachments.Add(so);
+                    foreach (SceneObjectGroup so in m_attachments)
+                    {
+                        if (attachmentPoint == so.AttachmentPoint)
+                            attachments.Add(so);
+                    }
                 }
             }
             
diff --git a/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs b/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
index 756b1f4..5398ab9 100644
--- a/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
+++ b/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
@@ -47,6 +47,7 @@ namespace OpenSim.Region.Framework.Scenes
             = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
 
         public const string LastReportedObjectUpdateStatName = "LastReportedObjectUpdates";
+        public const string SlowFramesStatName = "SlowFrames";
 
         public delegate void SendStatResult(SimStats stats);
 
@@ -129,6 +130,16 @@ namespace OpenSim.Region.Framework.Scenes
         }
 
         /// <summary>
+        /// Number of frames that have taken longer to process than Scene.MIN_FRAME_TIME
+        /// </summary>
+        public Stat SlowFramesStat { get; private set; }
+
+        /// <summary>
+        /// The threshold at which we log a slow frame.
+        /// </summary>
+        public int SlowFramesStatReportThreshold { get; private set; }
+
+        /// <summary>
         /// Extra sim statistics that are used by monitors but not sent to the client.
         /// </summary>
         /// <value>
@@ -226,6 +237,24 @@ namespace OpenSim.Region.Framework.Scenes
 
             if (StatsManager.SimExtraStats != null)
                 OnSendStatsResult += StatsManager.SimExtraStats.ReceiveClassicSimStatsPacket;
+
+            /// At the moment, we'll only report if a frame is over 120% of target, since commonly frames are a bit
+            /// longer than ideal (which in itself is a concern).
+            SlowFramesStatReportThreshold = (int)Math.Ceiling(m_scene.MinFrameTime * 1000 * 1.2);
+
+            SlowFramesStat
+                = new Stat(
+                    "SlowFrames",
+                    "Slow Frames",
+                    "Number of frames where frame time has been significantly longer than the desired frame time.",
+                    " frames",
+                    "scene",
+                    m_scene.Name,
+                    StatType.Push,
+                    null,
+                    StatVerbosity.Info);
+
+            StatsManager.RegisterStat(SlowFramesStat);
         }
 
         public void Close()
@@ -443,6 +472,7 @@ namespace OpenSim.Region.Framework.Scenes
                     lock (m_lastReportedExtraSimStats)
                     {
                         m_lastReportedExtraSimStats[LastReportedObjectUpdateStatName] = m_objectUpdates / m_statsUpdateFactor;
+                        m_lastReportedExtraSimStats[SlowFramesStat.ShortName] = (float)SlowFramesStat.Value;
 
                         Dictionary<string, float> physicsStats = m_scene.PhysicsScene.GetStats();
         
@@ -563,6 +593,11 @@ namespace OpenSim.Region.Framework.Scenes
         public void addFrameMS(int ms)
         {
             m_frameMS += ms;
+
+            // At the moment, we'll only report if a frame is over 120% of target, since commonly frames are a bit
+            // longer than ideal due to the inaccuracy of the Sleep in Scene.Update() (which in itself is a concern).
+            if (ms > SlowFramesStatReportThreshold)
+                SlowFramesStat.Value++;
         }
 
         public void addNetMS(int ms)
diff --git a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceAgentTests.cs b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceAgentTests.cs
index 5758869..5faf131 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceAgentTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceAgentTests.cs
@@ -141,7 +141,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             TestScene scene = new SceneHelpers().SetupScene();
             ScenePresence sp = SceneHelpers.AddScenePresence(scene, TestHelpers.ParseTail(0x1));
 
-            scene.IncomingCloseAgent(sp.UUID);
+            scene.IncomingCloseAgent(sp.UUID, false);
 
             Assert.That(scene.GetScenePresence(sp.UUID), Is.Null);
             Assert.That(scene.AuthenticateHandler.GetAgentCircuitData(sp.UUID), Is.Null);
diff --git a/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs b/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs
index d722a09..ac3da1e 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs
@@ -65,5 +65,22 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             
             Assert.That(scene.Frame, Is.EqualTo(1));
         }
+
+        [Test]
+        public void TestShutdownScene()
+        {
+            TestHelpers.InMethod();
+
+            Scene scene = new SceneHelpers().SetupScene();
+            scene.Close();
+
+            Assert.That(scene.ShuttingDown, Is.True);
+            Assert.That(scene.Active, Is.False);
+
+            // Trying to update a shutdown scene should result in no update
+            scene.Update(1);
+
+            Assert.That(scene.Frame, Is.EqualTo(0));
+        }
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/Framework/Scenes/Tests/UserInventoryTests.cs b/OpenSim/Region/Framework/Scenes/Tests/UserInventoryTests.cs
index 44d2d45..9457ebb 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/UserInventoryTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/UserInventoryTests.cs
@@ -50,9 +50,41 @@ using OpenSim.Tests.Common.Mock;
 namespace OpenSim.Region.Framework.Tests
 {
     [TestFixture]
-    public class UserInventoryTests
+    public class UserInventoryTests : OpenSimTestCase
     {
         [Test]
+        public void TestCreateInventoryFolders()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            // For this test both folders will have the same name which is legal in SL user inventories.
+            string foldersName = "f1";
+
+            Scene scene = new SceneHelpers().SetupScene();
+            UserAccount user1 = UserAccountHelpers.CreateUserWithInventory(scene, TestHelpers.ParseTail(1001));
+
+            UserInventoryHelpers.CreateInventoryFolder(scene.InventoryService, user1.PrincipalID, foldersName);
+
+            List<InventoryFolderBase> oneFolder
+                = UserInventoryHelpers.GetInventoryFolders(scene.InventoryService, user1.PrincipalID, foldersName);
+
+            Assert.That(oneFolder.Count, Is.EqualTo(1));
+            InventoryFolderBase firstRetrievedFolder = oneFolder[0];
+            Assert.That(firstRetrievedFolder.Name, Is.EqualTo(foldersName));
+
+            UserInventoryHelpers.CreateInventoryFolder(scene.InventoryService, user1.PrincipalID, foldersName);
+
+            List<InventoryFolderBase> twoFolders
+                = UserInventoryHelpers.GetInventoryFolders(scene.InventoryService, user1.PrincipalID, foldersName);
+
+            Assert.That(twoFolders.Count, Is.EqualTo(2));
+            Assert.That(twoFolders[0].Name, Is.EqualTo(foldersName));
+            Assert.That(twoFolders[1].Name, Is.EqualTo(foldersName));
+            Assert.That(twoFolders[0].ID, Is.Not.EqualTo(twoFolders[1].ID));
+        }
+
+        [Test]
         public void TestGiveInventoryItem()
         {
             TestHelpers.InMethod();
@@ -83,7 +115,7 @@ namespace OpenSim.Region.Framework.Tests
         public void TestGiveInventoryFolder()
         {
             TestHelpers.InMethod();
-//            log4net.Config.XmlConfigurator.Configure();
+//            TestHelpers.EnableLogging();
             
             Scene scene = new SceneHelpers().SetupScene();
             UserAccount user1 = UserAccountHelpers.CreateUserWithInventory(scene, TestHelpers.ParseTail(1001));
diff --git a/OpenSim/Region/Framework/Scenes/UuidGatherer.cs b/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
index 411e421..2279e62 100644
--- a/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
+++ b/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
@@ -52,26 +52,23 @@ namespace OpenSim.Region.Framework.Scenes
     public class UuidGatherer
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
-        
-        /// <summary>
-        /// Asset cache used for gathering assets
-        /// </summary>
-        protected IAssetService m_assetCache;
-        
-        /// <summary>
-        /// Used as a temporary store of an asset which represents an object.  This can be a null if no appropriate
-        /// asset was found by the asset service.
-        /// </summary>
-        private AssetBase m_requestedObjectAsset;
 
-        /// <summary>
-        /// Signal whether we are currently waiting for the asset service to deliver an asset.
-        /// </summary>
-        private bool m_waitingForObjectAsset;
+        protected IAssetService m_assetService;
+
+//        /// <summary>
+//        /// Used as a temporary store of an asset which represents an object.  This can be a null if no appropriate
+//        /// asset was found by the asset service.
+//        /// </summary>
+//        private AssetBase m_requestedObjectAsset;
+//
+//        /// <summary>
+//        /// Signal whether we are currently waiting for the asset service to deliver an asset.
+//        /// </summary>
+//        private bool m_waitingForObjectAsset;
                 
-        public UuidGatherer(IAssetService assetCache)
+        public UuidGatherer(IAssetService assetService)
         {
-            m_assetCache = assetCache;
+            m_assetService = assetService;
         }
                 
         /// <summary>
@@ -191,18 +188,18 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
         
-        /// <summary>
-        /// The callback made when we request the asset for an object from the asset service.
-        /// </summary>
-        private void AssetReceived(string id, Object sender, AssetBase asset)
-        {
-            lock (this)
-            {
-                m_requestedObjectAsset = asset;
-                m_waitingForObjectAsset = false;
-                Monitor.Pulse(this);
-            }
-        }
+//        /// <summary>
+//        /// The callback made when we request the asset for an object from the asset service.
+//        /// </summary>
+//        private void AssetReceived(string id, Object sender, AssetBase asset)
+//        {
+//            lock (this)
+//            {
+//                m_requestedObjectAsset = asset;
+//                m_waitingForObjectAsset = false;
+//                Monitor.Pulse(this);
+//            }
+//        }
 
         /// <summary>
         /// Get an asset synchronously, potentially using an asynchronous callback.  If the
@@ -212,25 +209,29 @@ namespace OpenSim.Region.Framework.Scenes
         /// <returns></returns>
         protected virtual AssetBase GetAsset(UUID uuid)
         {
-            m_waitingForObjectAsset = true;
-            m_assetCache.Get(uuid.ToString(), this, AssetReceived);
-
-            // The asset cache callback can either
-            //
-            // 1. Complete on the same thread (if the asset is already in the cache) or
-            // 2. Come in via a different thread (if we need to go fetch it).
-            //
-            // The code below handles both these alternatives.
-            lock (this)
-            {
-                if (m_waitingForObjectAsset)
-                {
-                    Monitor.Wait(this);
-                    m_waitingForObjectAsset = false;
-                }
-            }
+            return m_assetService.Get(uuid.ToString());
 
-            return m_requestedObjectAsset;
+            // XXX: Switching to do this synchronously where the call was async before but we always waited for it
+            // to complete anyway!
+//            m_waitingForObjectAsset = true;
+//            m_assetCache.Get(uuid.ToString(), this, AssetReceived);
+//
+//            // The asset cache callback can either
+//            //
+//            // 1. Complete on the same thread (if the asset is already in the cache) or
+//            // 2. Come in via a different thread (if we need to go fetch it).
+//            //
+//            // The code below handles both these alternatives.
+//            lock (this)
+//            {
+//                if (m_waitingForObjectAsset)
+//                {
+//                    Monitor.Wait(this);
+//                    m_waitingForObjectAsset = false;
+//                }
+//            }
+//
+//            return m_requestedObjectAsset;
         }
 
         /// <summary>
@@ -361,4 +362,47 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
     }
+
+    public class HGUuidGatherer : UuidGatherer
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        protected string m_assetServerURL;
+
+        public HGUuidGatherer(IAssetService assetService, string assetServerURL)
+            : base(assetService)
+        {
+            m_assetServerURL = assetServerURL;
+            if (!m_assetServerURL.EndsWith("/") && !m_assetServerURL.EndsWith("="))
+                m_assetServerURL = m_assetServerURL + "/";
+        }
+
+        protected override AssetBase GetAsset(UUID uuid)
+        {
+            if (string.Empty == m_assetServerURL)
+                return base.GetAsset(uuid);
+            else
+                return FetchAsset(uuid);
+        }
+
+        public AssetBase FetchAsset(UUID assetID)
+        {
+
+            // Test if it's already here
+            AssetBase asset = m_assetService.Get(assetID.ToString());
+            if (asset == null)
+            {
+                // It's not, so fetch it from abroad
+                asset = m_assetService.Get(m_assetServerURL + assetID.ToString());
+                if (asset != null)
+                    m_log.DebugFormat("[HGUUIDGatherer]: Copied asset {0} from {1} to local asset server", assetID, m_assetServerURL);
+                else
+                    m_log.DebugFormat("[HGUUIDGatherer]: Failed to fetch asset {0} from {1}", assetID, m_assetServerURL);
+            }
+            //else
+            //    m_log.DebugFormat("[HGUUIDGatherer]: Asset {0} from {1} was already here", assetID, m_assetServerURL);
+
+            return asset;
+        }
+    }
 }
diff --git a/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs b/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs
index a484300..c363fd3 100644
--- a/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs
+++ b/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs
@@ -890,10 +890,10 @@ namespace OpenSim.Region.OptionalModules.Agent.InternetRelayClientView.Server
 
         public void Close()
         {
-            Close(true);
+            Close(true, false);
         }
 
-        public void Close(bool sendStop)
+        public void Close(bool sendStop, bool force)
         {
             Disconnect();
         }
@@ -958,7 +958,8 @@ namespace OpenSim.Region.OptionalModules.Agent.InternetRelayClientView.Server
             
         }
 
-        public void SendChatMessage(string message, byte type, Vector3 fromPos, string fromName, UUID fromAgentID, byte source, byte audible)
+        public void SendChatMessage(
+            string message, byte type, Vector3 fromPos, string fromName, UUID fromAgentID, UUID ownerID, byte source, byte audible)
         {
             if (audible > 0 && message.Length > 0)
                 IRC_SendChannelPrivmsg(fromName, message);
diff --git a/OpenSim/Region/OptionalModules/Asset/AssetInfoModule.cs b/OpenSim/Region/OptionalModules/Asset/AssetInfoModule.cs
index 41ec14f..7639c6c 100644
--- a/OpenSim/Region/OptionalModules/Asset/AssetInfoModule.cs
+++ b/OpenSim/Region/OptionalModules/Asset/AssetInfoModule.cs
@@ -127,6 +127,9 @@ namespace OpenSim.Region.OptionalModules.Asset
             }
             
             string fileName = rawAssetId;
+
+            if (!ConsoleUtil.CheckFileDoesNotExist(MainConsole.Instance, fileName))
+                return;
             
             using (FileStream fs = new FileStream(fileName, FileMode.CreateNew))
             {
diff --git a/OpenSim/Region/OptionalModules/Avatar/Attachments/AttachmentsCommandModule.cs b/OpenSim/Region/OptionalModules/Avatar/Attachments/AttachmentsCommandModule.cs
index d68aabc..68bcb4a 100644
--- a/OpenSim/Region/OptionalModules/Avatar/Attachments/AttachmentsCommandModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/Attachments/AttachmentsCommandModule.cs
@@ -146,7 +146,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.Attachments
             sb.AppendFormat("Attachments for {0}\n", sp.Name);
 
             ConsoleDisplayTable ct = new ConsoleDisplayTable() { Indent = 2 };
-            ct.Columns.Add(new ConsoleDisplayTableColumn("Attachment Name", 36));
+            ct.Columns.Add(new ConsoleDisplayTableColumn("Attachment Name", 50));
             ct.Columns.Add(new ConsoleDisplayTableColumn("Local ID", 10));
             ct.Columns.Add(new ConsoleDisplayTableColumn("Item ID", 36));
             ct.Columns.Add(new ConsoleDisplayTableColumn("Attach Point", 14));
diff --git a/OpenSim/Region/OptionalModules/Avatar/Attachments/TempAttachmentsModule.cs b/OpenSim/Region/OptionalModules/Avatar/Attachments/TempAttachmentsModule.cs
index 31d0034..17971e3 100644
--- a/OpenSim/Region/OptionalModules/Avatar/Attachments/TempAttachmentsModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/Attachments/TempAttachmentsModule.cs
@@ -130,37 +130,37 @@ namespace OpenSim.Region.OptionalModules.Avatar.Attachments
             SendConsoleOutput(agentID, String.Format("auto_grant_attach_perms set to {0}", val));
         }
 
-        private void llAttachToAvatarTemp(UUID host, UUID script, int attachmentPoint)
+        private int llAttachToAvatarTemp(UUID host, UUID script, int attachmentPoint)
         {
             SceneObjectPart hostPart = m_scene.GetSceneObjectPart(host);
 
             if (hostPart == null)
-                return;
+                return 0;
 
             if (hostPart.ParentGroup.IsAttachment)
-                return;
+                return 0;
 
             IAttachmentsModule attachmentsModule = m_scene.RequestModuleInterface<IAttachmentsModule>();
             if (attachmentsModule == null)
-                return;
+                return 0;
 
             TaskInventoryItem item = hostPart.Inventory.GetInventoryItem(script);
             if (item == null)
-                return;
+                return 0;
 
             if ((item.PermsMask & 32) == 0) // PERMISSION_ATTACH
-                return;
+                return 0;
 
             ScenePresence target;
             if (!m_scene.TryGetScenePresence(item.PermsGranter, out target))
-                return;
+                return 0;
             
             if (target.UUID != hostPart.ParentGroup.OwnerID)
             {
                 uint effectivePerms = hostPart.ParentGroup.GetEffectivePermissions();
 
                 if ((effectivePerms & (uint)PermissionMask.Transfer) == 0)
-                    return;
+                    return 0;
 
                 hostPart.ParentGroup.SetOwnerId(target.UUID);
                 hostPart.ParentGroup.SetRootPartOwner(hostPart.ParentGroup.RootPart, target.UUID, target.ControllingClient.ActiveGroupId);
@@ -183,7 +183,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.Attachments
                 hostPart.ParentGroup.RootPart.ScheduleFullUpdate();
             }
 
-            attachmentsModule.AttachObject(target, hostPart.ParentGroup, (uint)attachmentPoint, false, true, true);
+            return attachmentsModule.AttachObject(target, hostPart.ParentGroup, (uint)attachmentPoint, false, true, true) ? 1 : 0;
         }
     }
 }
diff --git a/OpenSim/Region/OptionalModules/Avatar/Chat/IRCConnector.cs b/OpenSim/Region/OptionalModules/Avatar/Chat/IRCConnector.cs
index ca956fb..a014798 100644
--- a/OpenSim/Region/OptionalModules/Avatar/Chat/IRCConnector.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/Chat/IRCConnector.cs
@@ -231,12 +231,12 @@ namespace OpenSim.Region.OptionalModules.Avatar.Chat
             if (m_server == null || m_baseNick == null || m_ircChannel == null || m_user == null)
                 throw new Exception("Invalid connector configuration");
 
-            // Generate an initial nickname if randomizing is enabled
+            // Generate an initial nickname
 
             if (m_randomizeNick)
-            {
                 m_nick = m_baseNick + Util.RandomClass.Next(1, 99);
-            }
+            else 
+                m_nick = m_baseNick;
 
             m_log.InfoFormat("[IRC-Connector-{0}]: Initialization complete", idn);
 
diff --git a/OpenSim/Region/OptionalModules/Avatar/Concierge/ConciergeModule.cs b/OpenSim/Region/OptionalModules/Avatar/Concierge/ConciergeModule.cs
index e22618d..5c3be29 100644
--- a/OpenSim/Region/OptionalModules/Avatar/Concierge/ConciergeModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/Concierge/ConciergeModule.cs
@@ -546,8 +546,9 @@ namespace OpenSim.Region.OptionalModules.Avatar.Concierge
             c.SenderUUID = UUID.Zero;
             c.Scene = agent.Scene;
 
-            agent.ControllingClient.SendChatMessage(msg, (byte) ChatTypeEnum.Say, PosOfGod, m_whoami, UUID.Zero, 
-                                                    (byte)ChatSourceType.Object, (byte)ChatAudibleLevel.Fully);
+            agent.ControllingClient.SendChatMessage(
+                msg, (byte) ChatTypeEnum.Say, PosOfGod, m_whoami, UUID.Zero, UUID.Zero,
+                 (byte)ChatSourceType.Object, (byte)ChatAudibleLevel.Fully);
         }
 
         private static void checkStringParameters(XmlRpcRequest request, string[] param)
diff --git a/OpenSim/Region/OptionalModules/Avatar/Voice/FreeSwitchVoice/FreeSwitchVoiceModule.cs b/OpenSim/Region/OptionalModules/Avatar/Voice/FreeSwitchVoice/FreeSwitchVoiceModule.cs
index 7b20446..f292a75 100644
--- a/OpenSim/Region/OptionalModules/Avatar/Voice/FreeSwitchVoice/FreeSwitchVoiceModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/Voice/FreeSwitchVoice/FreeSwitchVoiceModule.cs
@@ -447,7 +447,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.Voice.FreeSwitchVoice
                 // settings allow voice, then whether parcel allows
                 // voice, if all do retrieve or obtain the parcel
                 // voice channel
-                LandData land = scene.GetLandData(avatar.AbsolutePosition.X, avatar.AbsolutePosition.Y);
+                LandData land = scene.GetLandData(avatar.AbsolutePosition);
 
                 //m_log.DebugFormat("[FreeSwitchVoice][PARCELVOICE]: region \"{0}\": Parcel \"{1}\" ({2}): avatar \"{3}\": request: {4}, path: {5}, param: {6}",
                 //                  scene.RegionInfo.RegionName, land.Name, land.LocalID, avatarName, request, path, param);
diff --git a/OpenSim/Region/OptionalModules/Avatar/Voice/VivoxVoice/VivoxVoiceModule.cs b/OpenSim/Region/OptionalModules/Avatar/Voice/VivoxVoice/VivoxVoiceModule.cs
index a30a38d..8a8a31c 100644
--- a/OpenSim/Region/OptionalModules/Avatar/Voice/VivoxVoice/VivoxVoiceModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/Voice/VivoxVoice/VivoxVoiceModule.cs
@@ -623,7 +623,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.Voice.VivoxVoice
                 // settings allow voice, then whether parcel allows
                 // voice, if all do retrieve or obtain the parcel
                 // voice channel
-                LandData land = scene.GetLandData(avatar.AbsolutePosition.X, avatar.AbsolutePosition.Y);
+                LandData land = scene.GetLandData(avatar.AbsolutePosition);
 
 //                    m_log.DebugFormat("[VivoxVoice][PARCELVOICE]: region \"{0}\": Parcel \"{1}\" ({2}): avatar \"{3}\": request: {4}, path: {5}, param: {6}",
 //                                      scene.RegionInfo.RegionName, land.Name, land.LocalID, avatarName, request, path, param);
diff --git a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs
index 10b83e6..1528330 100644
--- a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs
@@ -27,6 +27,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Reflection;
 using log4net;
 using Mono.Addins;
@@ -36,6 +37,8 @@ using OpenMetaverse.StructuredData;
 using OpenSim.Framework;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
+using OpenSim.Services.Interfaces;
+using PresenceInfo = OpenSim.Services.Interfaces.PresenceInfo;
 
 namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
 {
@@ -45,6 +48,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
         private List<Scene> m_sceneList = new List<Scene>();
+        private IPresenceService m_presenceService;
 
         private IMessageTransferModule m_msgTransferModule = null;
 
@@ -54,6 +58,27 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
         private bool m_groupMessagingEnabled = false;
         private bool m_debugEnabled = true;
 
+        /// <summary>
+        /// If enabled, module only tries to send group IMs to online users by querying cached presence information.
+        /// </summary>
+        private bool m_messageOnlineAgentsOnly;
+
+        /// <summary>
+        /// Cache for online users.
+        /// </summary>
+        /// <remarks>
+        /// Group ID is key, presence information for online members is value.
+        /// Will only be non-null if m_messageOnlineAgentsOnly = true
+        /// We cache here so that group messages don't constantly have to re-request the online user list to avoid
+        /// attempted expensive sending of messages to offline users.
+        /// The tradeoff is that a user that comes online will not receive messages consistently from all other users
+        /// until caches have updated.
+        /// Therefore, we set the cache expiry to just 20 seconds.
+        /// </remarks>
+        private ExpiringCache<UUID, PresenceInfo[]> m_usersOnlineCache;
+
+        private int m_usersOnlineCacheExpirySeconds = 20;
+
         #region IRegionModuleBase Members
 
         public void Initialise(IConfigSource config)
@@ -83,10 +108,17 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
                     return;
                 }
 
+                m_messageOnlineAgentsOnly = groupsConfig.GetBoolean("MessageOnlineUsersOnly", false);
+
+                if (m_messageOnlineAgentsOnly)
+                     m_usersOnlineCache = new ExpiringCache<UUID, PresenceInfo[]>();
+
                 m_debugEnabled = groupsConfig.GetBoolean("DebugEnabled", true);
             }
 
-            m_log.Info("[GROUPS-MESSAGING]: GroupsMessagingModule starting up");
+            m_log.InfoFormat(
+                "[GROUPS-MESSAGING]: GroupsMessagingModule enabled with MessageOnlineOnly = {0}, DebugEnabled = {1}",
+                m_messageOnlineAgentsOnly, m_debugEnabled);
         }
 
         public void AddRegion(Scene scene)
@@ -126,6 +158,8 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
                 return;
             }
 
+            if (m_presenceService == null)
+                m_presenceService = scene.PresenceService;
 
             m_sceneList.Add(scene);
 
@@ -207,12 +241,42 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
         public void SendMessageToGroup(GridInstantMessage im, UUID groupID)
         {
             List<GroupMembersData> groupMembers = m_groupData.GetGroupMembers(new UUID(im.fromAgentID), groupID);
-            
-            if (m_debugEnabled) 
-                m_log.DebugFormat(
-                    "[GROUPS-MESSAGING]: SendMessageToGroup called for group {0} with {1} visible members", 
-                    groupID, groupMembers.Count);
-            
+            int groupMembersCount = groupMembers.Count;
+
+            if (m_messageOnlineAgentsOnly)
+            {
+                string[] t1 = groupMembers.ConvertAll<string>(gmd => gmd.AgentID.ToString()).ToArray();
+
+                // We cache in order not to overwhlem the presence service on large grids with many groups.  This does
+                // mean that members coming online will not see all group members until after m_usersOnlineCacheExpirySeconds has elapsed.
+                // (assuming this is the same across all grid simulators).
+                PresenceInfo[] onlineAgents;
+                if (!m_usersOnlineCache.TryGetValue(groupID, out onlineAgents))
+                {
+                    onlineAgents = m_presenceService.GetAgents(t1);
+                    m_usersOnlineCache.Add(groupID, onlineAgents, m_usersOnlineCacheExpirySeconds);
+                }
+
+                HashSet<string> onlineAgentsUuidSet = new HashSet<string>();
+                Array.ForEach<PresenceInfo>(onlineAgents, pi => onlineAgentsUuidSet.Add(pi.UserID));
+
+                groupMembers = groupMembers.Where(gmd => onlineAgentsUuidSet.Contains(gmd.AgentID.ToString())).ToList();
+
+    //            if (m_debugEnabled)
+//                    m_log.DebugFormat(
+//                        "[GROUPS-MESSAGING]: SendMessageToGroup called for group {0} with {1} visible members, {2} online",
+//                        groupID, groupMembersCount, groupMembers.Count());
+            }
+            else
+            {
+                if (m_debugEnabled)
+                    m_log.DebugFormat(
+                        "[GROUPS-MESSAGING]: SendMessageToGroup called for group {0} with {1} visible members",
+                        groupID, groupMembers.Count);
+            }
+
+            int requestStartTick = Environment.TickCount;
+
             foreach (GroupMembersData member in groupMembers)
             {
                 if (m_groupData.hasAgentDroppedGroupChatSession(member.AgentID, groupID))
@@ -254,6 +318,12 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
                     ProcessMessageFromGroupSession(msg);
                 }
             }
+
+            // Temporary for assessing how long it still takes to send messages to large online groups.
+            if (m_messageOnlineAgentsOnly)
+                m_log.DebugFormat(
+                    "[GROUPS-MESSAGING]: SendMessageToGroup for group {0} with {1} visible members, {2} online took {3}ms",
+                    groupID, groupMembersCount, groupMembers.Count(), Environment.TickCount - requestStartTick);
         }
         
         #region SimGridEventHandlers
diff --git a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsModule.cs b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsModule.cs
index 65bd26c..79e9994 100644
--- a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsModule.cs
@@ -123,7 +123,36 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
         public void AddRegion(Scene scene)
         {
             if (m_groupsEnabled)
+            {
                 scene.RegisterModuleInterface<IGroupsModule>(this);
+                scene.AddCommand(
+                    "debug",
+                    this,
+                    "debug groups verbose",
+                    "debug groups verbose <true|false>",
+                    "This setting turns on very verbose groups debugging",
+                    HandleDebugGroupsVerbose);
+            }
+        }
+
+        private void HandleDebugGroupsVerbose(object modules, string[] args)
+        {
+            if (args.Length < 4)
+            {
+                MainConsole.Instance.Output("Usage: debug groups verbose <true|false>");
+                return;
+            }
+
+            bool verbose = false;
+            if (!bool.TryParse(args[3], out verbose))
+            {
+                MainConsole.Instance.Output("Usage: debug groups verbose <true|false>");
+                return;
+            }
+
+            m_debugEnabled = verbose;
+
+            MainConsole.Instance.OutputFormat("{0} verbose logging set to {1}", Name, m_debugEnabled);
         }
 
         public void RegionLoaded(Scene scene)
diff --git a/OpenSim/Region/OptionalModules/Scripting/JsonStore/JsonStoreModule.cs b/OpenSim/Region/OptionalModules/Scripting/JsonStore/JsonStoreModule.cs
index 311531c..732c28f 100644
--- a/OpenSim/Region/OptionalModules/Scripting/JsonStore/JsonStoreModule.cs
+++ b/OpenSim/Region/OptionalModules/Scripting/JsonStore/JsonStoreModule.cs
@@ -175,14 +175,15 @@ namespace OpenSim.Region.OptionalModules.Scripting.JsonStore
         /// 
         /// </summary>
         // -----------------------------------------------------------------
-        public bool CreateStore(string value, out UUID result)
+        public bool CreateStore(string value, ref UUID result)
         {
-            result = UUID.Zero;
+            if (result == UUID.Zero)
+                result = UUID.Random();
+
+            JsonStore map = null;
             
             if (! m_enabled) return false;
             
-            UUID uuid = UUID.Random();
-            JsonStore map = null;
 
             try
             { 
@@ -195,9 +196,8 @@ namespace OpenSim.Region.OptionalModules.Scripting.JsonStore
             }
 
             lock (m_JsonValueStore)
-                m_JsonValueStore.Add(uuid,map);
+                m_JsonValueStore.Add(result,map);
             
-            result = uuid;
             return true;
         }
 
@@ -231,7 +231,7 @@ namespace OpenSim.Region.OptionalModules.Scripting.JsonStore
                 if (! m_JsonValueStore.TryGetValue(storeID,out map))
                 {
                     m_log.InfoFormat("[JsonStore] Missing store {0}",storeID);
-                    return true;
+                    return false;
                 }
             }
             
diff --git a/OpenSim/Region/OptionalModules/Scripting/JsonStore/JsonStoreScriptModule.cs b/OpenSim/Region/OptionalModules/Scripting/JsonStore/JsonStoreScriptModule.cs
index eaba816..6910d14 100644
--- a/OpenSim/Region/OptionalModules/Scripting/JsonStore/JsonStoreScriptModule.cs
+++ b/OpenSim/Region/OptionalModules/Scripting/JsonStore/JsonStoreScriptModule.cs
@@ -227,7 +227,7 @@ namespace OpenSim.Region.OptionalModules.Scripting.JsonStore
         protected UUID JsonCreateStore(UUID hostID, UUID scriptID, string value)
         {
             UUID uuid = UUID.Zero;
-            if (! m_store.CreateStore(value, out uuid))
+            if (! m_store.CreateStore(value, ref uuid))
                 GenerateRuntimeError("Failed to create Json store");
             
             return uuid;
diff --git a/OpenSim/Region/OptionalModules/Scripting/Minimodule/SOPObject.cs b/OpenSim/Region/OptionalModules/Scripting/Minimodule/SOPObject.cs
index aa23fee..5ed1514 100644
--- a/OpenSim/Region/OptionalModules/Scripting/Minimodule/SOPObject.cs
+++ b/OpenSim/Region/OptionalModules/Scripting/Minimodule/SOPObject.cs
@@ -821,8 +821,11 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
         {
             if (!CanEdit())
                 return;
-
-            GetSOP().SendSound(asset.ToString(), volume, true, 0, 0, false, false);
+            ISoundModule module = m_rootScene.RequestModuleInterface<ISoundModule>();
+            if (module != null)
+            {
+                module.SendSound(GetSOP().UUID, asset, volume, true, 0, 0, false, false);
+            }
         }
 
         #endregion
diff --git a/OpenSim/Region/OptionalModules/Scripting/RegionReadyModule/RegionReadyModule.cs b/OpenSim/Region/OptionalModules/Scripting/RegionReadyModule/RegionReadyModule.cs
index fff3a32..bad75f7 100644
--- a/OpenSim/Region/OptionalModules/Scripting/RegionReadyModule/RegionReadyModule.cs
+++ b/OpenSim/Region/OptionalModules/Scripting/RegionReadyModule/RegionReadyModule.cs
@@ -181,7 +181,7 @@ namespace OpenSim.Region.OptionalModules.Scripting.RegionReady
             }
         }
 
-        void OnOarFileLoaded(Guid requestId, string message)
+        void OnOarFileLoaded(Guid requestId, List<UUID> loadedScenes, string message)
         {
             m_oarFileLoading = true;
 
diff --git a/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs b/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs
index 7c693b6..5471afa 100644
--- a/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs
+++ b/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs
@@ -148,7 +148,7 @@ namespace OpenSim.Region.OptionalModules.World.NPC
             OnInstantMessage(this, new GridInstantMessage(m_scene,
                     m_uuid, m_firstname + " " + m_lastname,
                     target, 0, false, message,
-                    UUID.Zero, false, Position, new byte[0]));
+                    UUID.Zero, false, Position, new byte[0], true));
         }
 
         public void SendAgentOffline(UUID[] agentIDs)
@@ -607,13 +607,15 @@ namespace OpenSim.Region.OptionalModules.World.NPC
         {
         }
 
-        public virtual void SendChatMessage(string message, byte type, Vector3 fromPos, string fromName,
-                                            UUID fromAgentID, byte source, byte audible)
+        public virtual void SendChatMessage(
+            string message, byte type, Vector3 fromPos, string fromName,
+            UUID fromAgentID, UUID ownerID, byte source, byte audible)
         {
         }
 
-        public virtual void SendChatMessage(byte[] message, byte type, Vector3 fromPos, string fromName,
-                                            UUID fromAgentID, byte source, byte audible)
+        public virtual void SendChatMessage(
+            byte[] message, byte type, Vector3 fromPos, string fromName,
+            UUID fromAgentID, UUID ownerID, byte source, byte audible)
         {
         }
 
@@ -909,11 +911,13 @@ namespace OpenSim.Region.OptionalModules.World.NPC
 
         public void Close()
         {
-            Close(true);
+            Close(true, false);
         }
 
-        public void Close(bool sendStop)
+        public void Close(bool sendStop, bool force)
         {
+            // Remove ourselves from the scene
+            m_scene.RemoveClient(AgentId, false);
         }
 
         public void Start()
diff --git a/OpenSim/Region/OptionalModules/World/NPC/Tests/NPCModuleTests.cs b/OpenSim/Region/OptionalModules/World/NPC/Tests/NPCModuleTests.cs
index 9179966..52ed846 100644
--- a/OpenSim/Region/OptionalModules/World/NPC/Tests/NPCModuleTests.cs
+++ b/OpenSim/Region/OptionalModules/World/NPC/Tests/NPCModuleTests.cs
@@ -117,6 +117,12 @@ namespace OpenSim.Region.OptionalModules.World.NPC.Tests
             Assert.That(npc, Is.Not.Null);
             Assert.That(npc.Appearance.Texture.FaceTextures[8].TextureID, Is.EqualTo(originalFace8TextureId));
             Assert.That(m_umMod.GetUserName(npc.UUID), Is.EqualTo(string.Format("{0} {1}", npc.Firstname, npc.Lastname)));
+
+            IClientAPI client;
+            Assert.That(m_scene.TryGetClient(npcId, out client), Is.True);
+
+            // Have to account for both SP and NPC.
+            Assert.That(m_scene.AuthenticateHandler.GetAgentCircuits().Count, Is.EqualTo(2));
         }
 
         [Test]
@@ -136,6 +142,11 @@ namespace OpenSim.Region.OptionalModules.World.NPC.Tests
             ScenePresence deletedNpc = m_scene.GetScenePresence(npcId);
 
             Assert.That(deletedNpc, Is.Null);
+            IClientAPI client;
+            Assert.That(m_scene.TryGetClient(npcId, out client), Is.False);
+
+            // Have to account for SP still present.
+            Assert.That(m_scene.AuthenticateHandler.GetAgentCircuits().Count, Is.EqualTo(1));
         }
 
         [Test]
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
index e2f7af9..2a5397e 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
@@ -28,62 +28,48 @@ using System;
 using System.Collections.Generic;
 using System.Reflection;
 using log4net;
-using OpenMetaverse;
+using OMV = OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Region.Physics.Manager;
 
 namespace OpenSim.Region.Physics.BulletSPlugin
 {
-public class BSCharacter : PhysicsActor
+public sealed class BSCharacter : BSPhysObject
 {
     private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
     private static readonly string LogHeader = "[BULLETS CHAR]";
 
-    private BSScene _scene;
-    public BSScene Scene { get { return _scene; } }
-    private String _avName;
     // private bool _stopped;
-    private Vector3 _size;
-    private Vector3 _scale;
-    private PrimitiveBaseShape _pbs;
-    private uint _localID = 0;
+    private OMV.Vector3 _size;
     private bool _grabbed;
     private bool _selected;
-    private Vector3 _position;
+    private OMV.Vector3 _position;
     private float _mass;
-    public float _density;
-    public float _avatarVolume;
-    private Vector3 _force;
-    private Vector3 _velocity;
-    private Vector3 _torque;
+    private float _avatarDensity;
+    private float _avatarVolume;
+    private OMV.Vector3 _force;
+    private OMV.Vector3 _velocity;
+    private OMV.Vector3 _torque;
     private float _collisionScore;
-    private Vector3 _acceleration;
-    private Quaternion _orientation;
+    private OMV.Vector3 _acceleration;
+    private OMV.Quaternion _orientation;
     private int _physicsActorType;
     private bool _isPhysical;
     private bool _flying;
     private bool _setAlwaysRun;
     private bool _throttleUpdates;
     private bool _isColliding;
-    private long _collidingStep;
-    private bool _collidingGround;
-    private long _collidingGroundStep;
     private bool _collidingObj;
     private bool _floatOnWater;
-    private Vector3 _rotationalVelocity;
+    private OMV.Vector3 _rotationalVelocity;
     private bool _kinematic;
     private float _buoyancy;
 
-    private BulletBody m_body;
-    public BulletBody Body { 
-        get { return m_body; }
-        set { m_body = value; }
-    }
-
-    private int _subscribedEventsMs = 0;
-    private int _nextCollisionOkTime = 0;
+    // The friction and velocity of the avatar is modified depending on whether walking or not.
+    private OMV.Vector3 _appliedVelocity;   // the last velocity applied to the avatar
+    private float _currentFriction;         // the friction currently being used (changed by setVelocity).
 
-    private Vector3 _PIDTarget;
+    private OMV.Vector3 _PIDTarget;
     private bool _usePID;
     private float _PIDTau;
     private bool _useHoverPID;
@@ -91,332 +77,507 @@ public class BSCharacter : PhysicsActor
     private PIDHoverType _PIDHoverType;
     private float _PIDHoverTao;
 
-    public BSCharacter(uint localID, String avName, BSScene parent_scene, Vector3 pos, Vector3 size, bool isFlying)
+    public BSCharacter(uint localID, String avName, BSScene parent_scene, OMV.Vector3 pos, OMV.Vector3 size, bool isFlying)
     {
-        _localID = localID;
-        _avName = avName;
-        _scene = parent_scene;
+        base.BaseInitialize(parent_scene, localID, avName, "BSCharacter");
+        _physicsActorType = (int)ActorTypes.Agent;
         _position = pos;
         _size = size;
         _flying = isFlying;
-        _orientation = Quaternion.Identity;
-        _velocity = Vector3.Zero;
+        _orientation = OMV.Quaternion.Identity;
+        _velocity = OMV.Vector3.Zero;
+        _appliedVelocity = OMV.Vector3.Zero;
         _buoyancy = ComputeBuoyancyFromFlying(isFlying);
+        _currentFriction = PhysicsScene.Params.avatarStandingFriction;
+        _avatarDensity = PhysicsScene.Params.avatarDensity;
+
         // The dimensions of the avatar capsule are kept in the scale.
         // Physics creates a unit capsule which is scaled by the physics engine.
-        _scale = new Vector3(_scene.Params.avatarCapsuleRadius, _scene.Params.avatarCapsuleRadius, size.Z);
-        _density = _scene.Params.avatarDensity;
-        ComputeAvatarVolumeAndMass();   // set _avatarVolume and _mass based on capsule size, _density and _scale
-
-        ShapeData shapeData = new ShapeData();
-        shapeData.ID = _localID;
-        shapeData.Type = ShapeData.PhysicsShapeType.SHAPE_AVATAR;
-        shapeData.Position = _position;
-        shapeData.Rotation = _orientation;
-        shapeData.Velocity = _velocity;
-        shapeData.Scale = _scale;
-        shapeData.Mass = _mass;
-        shapeData.Buoyancy = _buoyancy;
-        shapeData.Static = ShapeData.numericFalse;
-        shapeData.Friction = _scene.Params.avatarFriction;
-        shapeData.Restitution = _scene.Params.avatarRestitution;
+        ComputeAvatarScale(_size);
+        // set _avatarVolume and _mass based on capsule size, _density and Scale
+        ComputeAvatarVolumeAndMass();
+        DetailLog("{0},BSCharacter.create,call,size={1},scale={2},density={3},volume={4},mass={5}",
+                            LocalID, _size, Scale, _avatarDensity, _avatarVolume, RawMass);
 
         // do actual create at taint time
-        _scene.TaintedObject("BSCharacter.create", delegate()
+        PhysicsScene.TaintedObject("BSCharacter.create", delegate()
         {
-            BulletSimAPI.CreateObject(parent_scene.WorldID, shapeData);
+            DetailLog("{0},BSCharacter.create,taint", LocalID);
+            // New body and shape into BSBody and BSShape
+            PhysicsScene.Shapes.GetBodyAndShape(true, PhysicsScene.World, this, null, null);
 
-            m_body = new BulletBody(LocalID, BulletSimAPI.GetBodyHandle2(_scene.World.Ptr, LocalID));
-            // avatars get all collisions no matter what
-            BulletSimAPI.AddToCollisionFlags2(Body.Ptr, CollisionFlags.BS_SUBSCRIBE_COLLISION_EVENTS);
+            SetPhysicalProperties();
         });
-            
         return;
     }
 
     // called when this character is being destroyed and the resources should be released
-    public void Destroy()
+    public override void Destroy()
     {
-        // DetailLog("{0},BSCharacter.Destroy", LocalID);
-        _scene.TaintedObject("BSCharacter.destroy", delegate()
+        DetailLog("{0},BSCharacter.Destroy", LocalID);
+        PhysicsScene.TaintedObject("BSCharacter.destroy", delegate()
         {
-            BulletSimAPI.DestroyObject(_scene.WorldID, _localID);
+            PhysicsScene.Shapes.DereferenceBody(PhysBody, true, null);
+            PhysicsScene.Shapes.DereferenceShape(PhysShape, true, null);
         });
     }
 
+    private void SetPhysicalProperties()
+    {
+        BulletSimAPI.RemoveObjectFromWorld2(PhysicsScene.World.ptr, PhysBody.ptr);
+
+        ZeroMotion();
+        ForcePosition = _position;
+        // Set the velocity and compute the proper friction
+        ForceVelocity = _velocity;
+
+        BulletSimAPI.SetRestitution2(PhysBody.ptr, PhysicsScene.Params.avatarRestitution);
+        BulletSimAPI.SetMargin2(PhysShape.ptr, PhysicsScene.Params.collisionMargin);
+        BulletSimAPI.SetLocalScaling2(PhysShape.ptr, Scale);
+        BulletSimAPI.SetContactProcessingThreshold2(PhysBody.ptr, PhysicsScene.Params.contactProcessingThreshold);
+        if (PhysicsScene.Params.ccdMotionThreshold > 0f)
+        {
+            BulletSimAPI.SetCcdMotionThreshold2(PhysBody.ptr, PhysicsScene.Params.ccdMotionThreshold);
+            BulletSimAPI.SetCcdSweptSphereRadius2(PhysBody.ptr, PhysicsScene.Params.ccdSweptSphereRadius);
+        }
+
+        UpdatePhysicalMassProperties(RawMass);
+
+        // Make so capsule does not fall over
+        BulletSimAPI.SetAngularFactorV2(PhysBody.ptr, OMV.Vector3.Zero);
+
+        BulletSimAPI.AddToCollisionFlags2(PhysBody.ptr, CollisionFlags.CF_CHARACTER_OBJECT);
+
+        BulletSimAPI.AddObjectToWorld2(PhysicsScene.World.ptr, PhysBody.ptr);
+
+        // BulletSimAPI.ForceActivationState2(BSBody.ptr, ActivationState.ACTIVE_TAG);
+        BulletSimAPI.ForceActivationState2(PhysBody.ptr, ActivationState.DISABLE_DEACTIVATION);
+        BulletSimAPI.UpdateSingleAabb2(PhysicsScene.World.ptr, PhysBody.ptr);
+
+        // Do this after the object has been added to the world
+        BulletSimAPI.SetCollisionFilterMask2(PhysBody.ptr,
+                        (uint)CollisionFilterGroups.AvatarFilter,
+                        (uint)CollisionFilterGroups.AvatarMask);
+    }
+
     public override void RequestPhysicsterseUpdate()
     {
         base.RequestPhysicsterseUpdate();
     }
     // No one calls this method so I don't know what it could possibly mean
-    public override bool Stopped { 
-        get { return false; } 
-    }
-    public override Vector3 Size {
+    public override bool Stopped { get { return false; } }
+
+    public override OMV.Vector3 Size {
         get
         {
             // Avatar capsule size is kept in the scale parameter.
-            return new Vector3(_scale.X * 2, _scale.Y * 2, _scale.Z);
+            // return _size;
+            return new OMV.Vector3(Scale.X * 2f, Scale.Y * 2f, Scale.Z);
         }
 
-        set { 
-            // When an avatar's size is set, only the height is changed
-            //    and that really only depends on the radius.
+        set {
+            // When an avatar's size is set, only the height is changed.
             _size = value;
-            _scale.Z = (_size.Z * 1.15f) - (_scale.X + _scale.Y);
-
-            // TODO: something has to be done with the avatar's vertical position
-
+            ComputeAvatarScale(_size);
             ComputeAvatarVolumeAndMass();
+            DetailLog("{0},BSCharacter.setSize,call,scale={1},density={2},volume={3},mass={4}",
+                            LocalID, Scale, _avatarDensity, _avatarVolume, RawMass);
 
-            _scene.TaintedObject("BSCharacter.setSize", delegate()
+            PhysicsScene.TaintedObject("BSCharacter.setSize", delegate()
             {
-                BulletSimAPI.SetObjectScaleMass(_scene.WorldID, LocalID, _scale, _mass, true);
+                BulletSimAPI.SetLocalScaling2(PhysShape.ptr, Scale);
+                UpdatePhysicalMassProperties(RawMass);
             });
 
-        } 
+        }
     }
-    public override PrimitiveBaseShape Shape { 
-        set { _pbs = value; 
-        } 
+
+    public override OMV.Vector3 Scale { get; set; }
+
+    public override PrimitiveBaseShape Shape
+    {
+        set { BaseShape = value; }
     }
-    public override uint LocalID { 
-        set { _localID = value; 
-        }
-        get { return _localID; }
+    // I want the physics engine to make an avatar capsule
+    public override ShapeData.PhysicsShapeType PreferredPhysicalShape
+    {
+        get {return ShapeData.PhysicsShapeType.SHAPE_AVATAR; }
     }
-    public override bool Grabbed { 
-        set { _grabbed = value; 
-        } 
+
+    public override bool Grabbed {
+        set { _grabbed = value; }
     }
-    public override bool Selected { 
-        set { _selected = value; 
-        } 
+    public override bool Selected {
+        set { _selected = value; }
     }
     public override void CrossingFailure() { return; }
     public override void link(PhysicsActor obj) { return; }
     public override void delink() { return; }
-    public override void LockAngularMotion(Vector3 axis) { return; }
 
-    public override Vector3 Position { 
+    // Set motion values to zero.
+    // Do it to the properties so the values get set in the physics engine.
+    // Push the setting of the values to the viewer.
+    // Called at taint time!
+    public override void ZeroMotion()
+    {
+        _velocity = OMV.Vector3.Zero;
+        _acceleration = OMV.Vector3.Zero;
+        _rotationalVelocity = OMV.Vector3.Zero;
+
+        // Zero some other properties directly into the physics engine
+        BulletSimAPI.SetLinearVelocity2(PhysBody.ptr, OMV.Vector3.Zero);
+        BulletSimAPI.SetAngularVelocity2(PhysBody.ptr, OMV.Vector3.Zero);
+        BulletSimAPI.SetInterpolationVelocity2(PhysBody.ptr, OMV.Vector3.Zero, OMV.Vector3.Zero);
+        BulletSimAPI.ClearForces2(PhysBody.ptr);
+    }
+
+    public override void LockAngularMotion(OMV.Vector3 axis) { return; }
+
+    public override OMV.Vector3 RawPosition
+    {
+        get { return _position; }
+        set { _position = value; }
+    }
+    public override OMV.Vector3 Position {
         get {
-            // _position = BulletSimAPI.GetObjectPosition(_scene.WorldID, _localID);
-            return _position; 
-        } 
+            // Don't refetch the position because this function is called a zillion times
+            // _position = BulletSimAPI.GetObjectPosition2(Scene.World.ptr, LocalID);
+            return _position;
+        }
         set {
             _position = value;
             PositionSanityCheck();
 
-            _scene.TaintedObject("BSCharacter.setPosition", delegate()
+            PhysicsScene.TaintedObject("BSCharacter.setPosition", delegate()
             {
                 DetailLog("{0},BSCharacter.SetPosition,taint,pos={1},orient={2}", LocalID, _position, _orientation);
-                BulletSimAPI.SetObjectTranslation(_scene.WorldID, _localID, _position, _orientation);
+                BulletSimAPI.SetTranslation2(PhysBody.ptr, _position, _orientation);
             });
-        } 
+        }
+    }
+    public override OMV.Vector3 ForcePosition {
+        get {
+            _position = BulletSimAPI.GetPosition2(PhysBody.ptr);
+            return _position;
+        }
+        set {
+            _position = value;
+            PositionSanityCheck();
+            BulletSimAPI.SetTranslation2(PhysBody.ptr, _position, _orientation);
+        }
     }
 
+
     // Check that the current position is sane and, if not, modify the position to make it so.
-    // Check for being below terrain and being out of bounds.
+    // Check for being below terrain or on water.
     // Returns 'true' of the position was made sane by some action.
     private bool PositionSanityCheck()
     {
         bool ret = false;
-        
+
         // If below the ground, move the avatar up
-        float terrainHeight = Scene.GetTerrainHeightAtXYZ(_position);
-        if (_position.Z < terrainHeight)
+        float terrainHeight = PhysicsScene.TerrainManager.GetTerrainHeightAtXYZ(_position);
+        if (Position.Z < terrainHeight)
         {
-            DetailLog("{0},BSCharacter.PositionAdjustUnderGround,call,pos={1},orient={2}", LocalID, _position, _orientation);
+            DetailLog("{0},BSCharacter.PositionAdjustUnderGround,call,pos={1},terrain={2}", LocalID, _position, terrainHeight);
             _position.Z = terrainHeight + 2.0f;
             ret = true;
         }
+        if ((CurrentCollisionFlags & CollisionFlags.BS_FLOATS_ON_WATER) != 0)
+        {
+            float waterHeight = PhysicsScene.GetWaterLevelAtXYZ(_position);
+            if (Position.Z < waterHeight)
+            {
+                _position.Z = waterHeight;
+                ret = true;
+            }
+        }
 
         // TODO: check for out of bounds
+        return ret;
+    }
 
+    // A version of the sanity check that also makes sure a new position value is
+    //    pushed back to the physics engine. This routine would be used by anyone
+    //    who is not already pushing the value.
+    private bool PositionSanityCheck(bool inTaintTime)
+    {
+        bool ret = false;
+        if (PositionSanityCheck())
+        {
+            // The new position value must be pushed into the physics engine but we can't
+            //    just assign to "Position" because of potential call loops.
+            PhysicsScene.TaintedObject(inTaintTime, "BSCharacter.PositionSanityCheck", delegate()
+            {
+                DetailLog("{0},BSCharacter.PositionSanityCheck,taint,pos={1},orient={2}", LocalID, _position, _orientation);
+                BulletSimAPI.SetTranslation2(PhysBody.ptr, _position, _orientation);
+            });
+            ret = true;
+        }
         return ret;
     }
 
-    public override float Mass { 
-        get { 
-            return _mass; 
-        } 
+    public override float Mass { get { return _mass; } }
+
+    // used when we only want this prim's mass and not the linkset thing
+    public override float RawMass { 
+        get {return _mass; }
+    }
+    public override void UpdatePhysicalMassProperties(float physMass)
+    {
+        OMV.Vector3 localInertia = BulletSimAPI.CalculateLocalInertia2(PhysShape.ptr, physMass);
+        BulletSimAPI.SetMassProps2(PhysBody.ptr, physMass, localInertia);
     }
-    public override Vector3 Force { 
-        get { return _force; } 
+
+    public override OMV.Vector3 Force {
+        get { return _force; }
         set {
             _force = value;
             // m_log.DebugFormat("{0}: Force = {1}", LogHeader, _force);
-            Scene.TaintedObject("BSCharacter.SetForce", delegate()
+            PhysicsScene.TaintedObject("BSCharacter.SetForce", delegate()
             {
                 DetailLog("{0},BSCharacter.setForce,taint,force={1}", LocalID, _force);
-                BulletSimAPI.SetObjectForce(Scene.WorldID, LocalID, _force);
+                BulletSimAPI.SetObjectForce2(PhysBody.ptr, _force);
             });
-        } 
+        }
     }
 
-    public override int VehicleType { 
-        get { return 0; } 
-        set { return; } 
-    }
+    // Avatars don't do vehicles
+    public override int VehicleType { get { return (int)Vehicle.TYPE_NONE; } set { return; } }
     public override void VehicleFloatParam(int param, float value) { }
-    public override void VehicleVectorParam(int param, Vector3 value) {}
-    public override void VehicleRotationParam(int param, Quaternion rotation) { }
+    public override void VehicleVectorParam(int param, OMV.Vector3 value) {}
+    public override void VehicleRotationParam(int param, OMV.Quaternion rotation) { }
     public override void VehicleFlags(int param, bool remove) { }
 
     // Allows the detection of collisions with inherently non-physical prims. see llVolumeDetect for more
     public override void SetVolumeDetect(int param) { return; }
 
-    public override Vector3 GeometricCenter { get { return Vector3.Zero; } }
-    public override Vector3 CenterOfMass { get { return Vector3.Zero; } }
-    public override Vector3 Velocity { 
-        get { return _velocity; } 
+    public override OMV.Vector3 GeometricCenter { get { return OMV.Vector3.Zero; } }
+    public override OMV.Vector3 CenterOfMass { get { return OMV.Vector3.Zero; } }
+    public override OMV.Vector3 Velocity {
+        get { return _velocity; }
         set {
             _velocity = value;
             // m_log.DebugFormat("{0}: set velocity = {1}", LogHeader, _velocity);
-            _scene.TaintedObject("BSCharacter.setVelocity", delegate()
+            PhysicsScene.TaintedObject("BSCharacter.setVelocity", delegate()
             {
                 DetailLog("{0},BSCharacter.setVelocity,taint,vel={1}", LocalID, _velocity);
-                BulletSimAPI.SetObjectVelocity(_scene.WorldID, _localID, _velocity);
+                ForceVelocity = _velocity;
             });
-        } 
+        }
+    }
+    public override OMV.Vector3 ForceVelocity {
+        get { return _velocity; }
+        set {
+            // Depending on whether the avatar is moving or not, change the friction
+            //    to keep the avatar from slipping around
+            if (_velocity.Length() == 0)
+            {
+                if (_currentFriction != PhysicsScene.Params.avatarStandingFriction)
+                {
+                    _currentFriction = PhysicsScene.Params.avatarStandingFriction;
+                    BulletSimAPI.SetFriction2(PhysBody.ptr, _currentFriction);
+                }
+            }
+            else
+            {
+                if (_currentFriction != PhysicsScene.Params.avatarFriction)
+                {
+                    _currentFriction = PhysicsScene.Params.avatarFriction;
+                    BulletSimAPI.SetFriction2(PhysBody.ptr, _currentFriction);
+                }
+            }
+            _velocity = value;
+            // Remember the set velocity so we can suppress the reduction by friction, ...
+            _appliedVelocity = value;
+
+            BulletSimAPI.SetLinearVelocity2(PhysBody.ptr, _velocity);
+            BulletSimAPI.Activate2(PhysBody.ptr, true);
+        }
     }
-    public override Vector3 Torque { 
-        get { return _torque; } 
-        set { _torque = value; 
-        } 
+    public override OMV.Vector3 Torque {
+        get { return _torque; }
+        set { _torque = value;
+        }
     }
-    public override float CollisionScore { 
-        get { return _collisionScore; } 
-        set { _collisionScore = value; 
-        } 
+    public override float CollisionScore {
+        get { return _collisionScore; }
+        set { _collisionScore = value;
+        }
     }
-    public override Vector3 Acceleration { 
+    public override OMV.Vector3 Acceleration {
         get { return _acceleration; }
         set { _acceleration = value; }
     }
-    public override Quaternion Orientation { 
-        get { return _orientation; } 
+    public override OMV.Quaternion RawOrientation
+    {
+        get { return _orientation; }
+        set { _orientation = value; }
+    }
+    public override OMV.Quaternion Orientation {
+        get { return _orientation; }
         set {
             _orientation = value;
             // m_log.DebugFormat("{0}: set orientation to {1}", LogHeader, _orientation);
-            _scene.TaintedObject("BSCharacter.setOrientation", delegate()
+            PhysicsScene.TaintedObject("BSCharacter.setOrientation", delegate()
             {
-                // _position = BulletSimAPI.GetObjectPosition(_scene.WorldID, _localID);
-                BulletSimAPI.SetObjectTranslation(_scene.WorldID, _localID, _position, _orientation);
+                // _position = BulletSimAPI.GetPosition2(BSBody.ptr);
+                BulletSimAPI.SetTranslation2(PhysBody.ptr, _position, _orientation);
             });
-        } 
+        }
     }
-    public override int PhysicsActorType { 
-        get { return _physicsActorType; } 
-        set { _physicsActorType = value; 
-        } 
+    // Go directly to Bullet to get/set the value.
+    public override OMV.Quaternion ForceOrientation
+    {
+        get
+        {
+            _orientation = BulletSimAPI.GetOrientation2(PhysBody.ptr);
+            return _orientation;
+        }
+        set
+        {
+            _orientation = value;
+            BulletSimAPI.SetTranslation2(PhysBody.ptr, _position, _orientation);
+        }
+    }
+    public override int PhysicsActorType {
+        get { return _physicsActorType; }
+        set { _physicsActorType = value;
+        }
     }
-    public override bool IsPhysical { 
-        get { return _isPhysical; } 
+    public override bool IsPhysical {
+        get { return _isPhysical; }
         set { _isPhysical = value;
-        } 
+        }
+    }
+    public override bool IsSolid {
+        get { return true; }
     }
-    public override bool Flying { 
-        get { return _flying; } 
+    public override bool IsStatic {
+        get { return false; }
+    }
+    public override bool Flying {
+        get { return _flying; }
         set {
-            if (_flying != value)
-            {
-                _flying = value;
-                // simulate flying by changing the effect of gravity
-                this.Buoyancy = ComputeBuoyancyFromFlying(_flying);
-            }
-        } 
+            _flying = value;
+            // simulate flying by changing the effect of gravity
+            Buoyancy = ComputeBuoyancyFromFlying(_flying);
+        }
     }
+    // Flying is implimented by changing the avatar's buoyancy.
+    // Would this be done better with a vehicle type?
     private float ComputeBuoyancyFromFlying(bool ifFlying) {
         return ifFlying ? 1f : 0f;
     }
-    public override bool 
-        SetAlwaysRun { 
-        get { return _setAlwaysRun; } 
-        set { _setAlwaysRun = value; } 
+    public override bool
+        SetAlwaysRun {
+        get { return _setAlwaysRun; }
+        set { _setAlwaysRun = value; }
     }
-    public override bool ThrottleUpdates { 
-        get { return _throttleUpdates; } 
-        set { _throttleUpdates = value; } 
+    public override bool ThrottleUpdates {
+        get { return _throttleUpdates; }
+        set { _throttleUpdates = value; }
     }
     public override bool IsColliding {
-        get { return (_collidingStep == _scene.SimulationStep); } 
-        set { _isColliding = value; } 
+        get { return (CollidingStep == PhysicsScene.SimulationStep); }
+        set { _isColliding = value; }
     }
     public override bool CollidingGround {
-        get { return (_collidingGroundStep == _scene.SimulationStep); } 
-        set { _collidingGround = value; } 
+        get { return (CollidingGroundStep == PhysicsScene.SimulationStep); }
+        set { CollidingGround = value; }
+    }
+    public override bool CollidingObj {
+        get { return _collidingObj; }
+        set { _collidingObj = value; }
     }
-    public override bool CollidingObj { 
-        get { return _collidingObj; } 
-        set { _collidingObj = value; } 
+    public override bool FloatOnWater {
+        set {
+            _floatOnWater = value;
+            PhysicsScene.TaintedObject("BSCharacter.setFloatOnWater", delegate()
+            {
+                if (_floatOnWater)
+                    CurrentCollisionFlags = BulletSimAPI.AddToCollisionFlags2(PhysBody.ptr, CollisionFlags.BS_FLOATS_ON_WATER);
+                else
+                    CurrentCollisionFlags = BulletSimAPI.RemoveFromCollisionFlags2(PhysBody.ptr, CollisionFlags.BS_FLOATS_ON_WATER);
+            });
+        }
     }
-    public override bool FloatOnWater { 
-        set { _floatOnWater = value; } 
+    public override OMV.Vector3 RotationalVelocity {
+        get { return _rotationalVelocity; }
+        set { _rotationalVelocity = value; }
     }
-    public override Vector3 RotationalVelocity { 
-        get { return _rotationalVelocity; } 
-        set { _rotationalVelocity = value; } 
+    public override OMV.Vector3 ForceRotationalVelocity {
+        get { return _rotationalVelocity; }
+        set { _rotationalVelocity = value; }
     }
-    public override bool Kinematic { 
-        get { return _kinematic; } 
-        set { _kinematic = value; } 
+    public override bool Kinematic {
+        get { return _kinematic; }
+        set { _kinematic = value; }
     }
     // neg=fall quickly, 0=1g, 1=0g, pos=float up
-    public override float Buoyancy { 
-        get { return _buoyancy; } 
-        set { _buoyancy = value; 
-            _scene.TaintedObject("BSCharacter.setBuoyancy", delegate()
+    public override float Buoyancy {
+        get { return _buoyancy; }
+        set { _buoyancy = value;
+            PhysicsScene.TaintedObject("BSCharacter.setBuoyancy", delegate()
             {
                 DetailLog("{0},BSCharacter.setBuoyancy,taint,buoy={1}", LocalID, _buoyancy);
-                BulletSimAPI.SetObjectBuoyancy(_scene.WorldID, LocalID, _buoyancy);
+                ForceBuoyancy = _buoyancy;
             });
-        } 
+        }
+    }
+    public override float ForceBuoyancy {
+        get { return _buoyancy; }
+        set { _buoyancy = value;
+            DetailLog("{0},BSCharacter.setForceBuoyancy,taint,buoy={1}", LocalID, _buoyancy);
+            // Buoyancy is faked by changing the gravity applied to the object
+            float grav = PhysicsScene.Params.gravity * (1f - _buoyancy);
+            BulletSimAPI.SetGravity2(PhysBody.ptr, new OMV.Vector3(0f, 0f, grav));
+        }
     }
 
     // Used for MoveTo
-    public override Vector3 PIDTarget { 
-        set { _PIDTarget = value; } 
+    public override OMV.Vector3 PIDTarget {
+        set { _PIDTarget = value; }
     }
-    public override bool PIDActive { 
-        set { _usePID = value; } 
+    public override bool PIDActive {
+        set { _usePID = value; }
     }
-    public override float PIDTau { 
-        set { _PIDTau = value; } 
+    public override float PIDTau {
+        set { _PIDTau = value; }
     }
 
     // Used for llSetHoverHeight and maybe vehicle height
     // Hover Height will override MoveTo target's Z
-    public override bool PIDHoverActive { 
+    public override bool PIDHoverActive {
         set { _useHoverPID = value; }
     }
-    public override float PIDHoverHeight { 
+    public override float PIDHoverHeight {
         set { _PIDHoverHeight = value; }
     }
-    public override PIDHoverType PIDHoverType { 
+    public override PIDHoverType PIDHoverType {
         set { _PIDHoverType = value; }
     }
-    public override float PIDHoverTau { 
+    public override float PIDHoverTau {
         set { _PIDHoverTao = value; }
     }
 
     // For RotLookAt
-    public override Quaternion APIDTarget { set { return; } }
+    public override OMV.Quaternion APIDTarget { set { return; } }
     public override bool APIDActive { set { return; } }
     public override float APIDStrength { set { return; } }
     public override float APIDDamping { set { return; } }
 
-    public override void AddForce(Vector3 force, bool pushforce) { 
+    public override void AddForce(OMV.Vector3 force, bool pushforce) {
         if (force.IsFinite())
         {
             _force.X += force.X;
             _force.Y += force.Y;
             _force.Z += force.Z;
             // m_log.DebugFormat("{0}: AddForce. adding={1}, newForce={2}", LogHeader, force, _force);
-            _scene.TaintedObject("BSCharacter.AddForce", delegate()
+            PhysicsScene.TaintedObject("BSCharacter.AddForce", delegate()
             {
                 DetailLog("{0},BSCharacter.setAddForce,taint,addedForce={1}", LocalID, _force);
-                BulletSimAPI.AddObjectForce2(Body.Ptr, _force);
+                BulletSimAPI.SetObjectForce2(PhysBody.ptr, _force);
             });
         }
         else
@@ -426,129 +587,75 @@ public class BSCharacter : PhysicsActor
         //m_lastUpdateSent = false;
     }
 
-    public override void AddAngularForce(Vector3 force, bool pushforce) { 
+    public override void AddAngularForce(OMV.Vector3 force, bool pushforce) {
     }
-    public override void SetMomentum(Vector3 momentum) { 
+    public override void SetMomentum(OMV.Vector3 momentum) {
     }
 
-    // Turn on collision events at a rate no faster than one every the given milliseconds
-    public override void SubscribeEvents(int ms) {
-        _subscribedEventsMs = ms;
-        if (ms > 0)
-        {
-            // make sure first collision happens
-            _nextCollisionOkTime = Util.EnvironmentTickCount() - _subscribedEventsMs;
+    private void ComputeAvatarScale(OMV.Vector3 size)
+    {
+        // The 'size' given by the simulator is the mid-point of the avatar
+        //    and X and Y are unspecified.
 
-            Scene.TaintedObject("BSCharacter.SubscribeEvents", delegate()
-            {
-                BulletSimAPI.AddToCollisionFlags2(Body.Ptr, CollisionFlags.BS_SUBSCRIBE_COLLISION_EVENTS);
-            });
-        }
-    }
-    // Stop collision events
-    public override void UnSubscribeEvents() { 
-        _subscribedEventsMs = 0;
-        // Avatars get all their collision events
-        // Scene.TaintedObject("BSCharacter.UnSubscribeEvents", delegate()
-        // {
-        //     BulletSimAPI.RemoveFromCollisionFlags2(Body.Ptr, CollisionFlags.BS_SUBSCRIBE_COLLISION_EVENTS);
-        // });
-    }
-    // Return 'true' if someone has subscribed to events
-    public override bool SubscribedEvents() {
-        return (_subscribedEventsMs > 0);
+        OMV.Vector3 newScale = OMV.Vector3.Zero;
+        newScale.X = PhysicsScene.Params.avatarCapsuleRadius;
+        newScale.Y = PhysicsScene.Params.avatarCapsuleRadius;
+
+        // From the total height, remove the capsule half spheres that are at each end
+        newScale.Z = size.Z- (newScale.X + newScale.Y);
+        Scale = newScale;
     }
 
-    // set _avatarVolume and _mass based on capsule size, _density and _scale
+    // set _avatarVolume and _mass based on capsule size, _density and Scale
     private void ComputeAvatarVolumeAndMass()
     {
         _avatarVolume = (float)(
                         Math.PI
-                        * _scale.X
-                        * _scale.Y  // the area of capsule cylinder
-                        * _scale.Z  // times height of capsule cylinder
+                        * Scale.X
+                        * Scale.Y    // the area of capsule cylinder
+                        * Scale.Z    // times height of capsule cylinder
                       + 1.33333333f
                         * Math.PI
-                        * _scale.X
-                        * Math.Min(_scale.X, _scale.Y)
-                        * _scale.Y  // plus the volume of the capsule end caps
+                        * Scale.X
+                        * Math.Min(Scale.X, Scale.Y)
+                        * Scale.Y    // plus the volume of the capsule end caps
                         );
-        _mass = _density * _avatarVolume;
+        _mass = _avatarDensity * _avatarVolume;
     }
 
     // The physics engine says that properties have updated. Update same and inform
     // the world that things have changed.
-    public void UpdateProperties(EntityProperties entprop)
+    public override void UpdateProperties(EntityProperties entprop)
     {
         _position = entprop.Position;
         _orientation = entprop.Rotation;
         _velocity = entprop.Velocity;
         _acceleration = entprop.Acceleration;
         _rotationalVelocity = entprop.RotationalVelocity;
-        // Avatars don't report their changes the usual way. Changes are checked for in the heartbeat loop.
-        // base.RequestPhysicsterseUpdate();
-
-        /*
-        DetailLog("{0},BSCharacter.UpdateProperties,call,pos={1},orient={2},vel={3},accel={4},rotVel={5}",
-                LocalID, entprop.Position, entprop.Rotation, entprop.Velocity, 
-                entprop.Acceleration, entprop.RotationalVelocity);
-         */
-    }
+        // Do some sanity checking for the avatar. Make sure it's above ground and inbounds.
+        PositionSanityCheck(true);
 
-    // Called by the scene when a collision with this object is reported
-    // The collision, if it should be reported to the character, is placed in a collection
-    //   that will later be sent to the simulator when SendCollisions() is called.
-    CollisionEventUpdate collisionCollection = null;
-    public void Collide(uint collidingWith, ActorTypes type, Vector3 contactPoint, Vector3 contactNormal, float pentrationDepth)
-    {
-        // m_log.DebugFormat("{0}: Collide: ms={1}, id={2}, with={3}", LogHeader, _subscribedEventsMs, LocalID, collidingWith);
+        // remember the current and last set values
+        LastEntityProperties = CurrentEntityProperties;
+        CurrentEntityProperties = entprop;
 
-        // The following makes IsColliding() and IsCollidingGround() work
-        _collidingStep = _scene.SimulationStep;
-        if (collidingWith == BSScene.TERRAIN_ID || collidingWith == BSScene.GROUNDPLANE_ID)
+        if (entprop.Velocity != LastEntityProperties.Velocity)
         {
-            _collidingGroundStep = _scene.SimulationStep;
+            // Changes in the velocity are suppressed in avatars.
+            // That's just the way they are defined.
+            OMV.Vector3 avVel = new OMV.Vector3(_appliedVelocity.X, _appliedVelocity.Y, entprop.Velocity.Z);
+            _velocity = avVel;
+            BulletSimAPI.SetLinearVelocity2(PhysBody.ptr, avVel);
         }
-        // DetailLog("{0},BSCharacter.Collison,call,with={1}", LocalID, collidingWith);
 
-        // throttle collisions to the rate specified in the subscription
-        if (_subscribedEventsMs != 0) {
-            int nowTime = _scene.SimulationNowTime;
-            if (nowTime >= _nextCollisionOkTime) {
-                _nextCollisionOkTime = nowTime + _subscribedEventsMs;
+        // Tell the linkset about value changes
+        Linkset.UpdateProperties(this);
 
-                if (collisionCollection == null)
-                    collisionCollection = new CollisionEventUpdate();
-                collisionCollection.AddCollider(collidingWith, new ContactPoint(contactPoint, contactNormal, pentrationDepth));
-            }
-        }
-    }
+        // Avatars don't report their changes the usual way. Changes are checked for in the heartbeat loop.
+        // base.RequestPhysicsterseUpdate();
 
-    public void SendCollisions()
-    {
-        /*
-        if (collisionCollection != null && collisionCollection.Count > 0)
-        {
-            base.SendCollisionUpdate(collisionCollection);
-            collisionCollection = null;
-        }
-         */
-        // Kludge to make a collision call even if there are no collisions.
-        // This causes the avatar animation to get updated.
-        if (collisionCollection == null)
-            collisionCollection = new CollisionEventUpdate();
-        base.SendCollisionUpdate(collisionCollection);
-        // If there were any collisions in the collection, make sure we don't use the
-        //    same instance next time.
-        if (collisionCollection.Count > 0)
-            collisionCollection = null;
-        // End kludge
-    }
-
-    // Invoke the detailed logger and output something if it's enabled.
-    private void DetailLog(string msg, params Object[] args)
-    {
-        Scene.PhysicsLogging.Write(msg, args);
+        DetailLog("{0},BSCharacter.UpdateProperties,call,pos={1},orient={2},vel={3},accel={4},rotVel={5}",
+                LocalID, _position, _orientation, _velocity, _acceleration, _rotationalVelocity);
     }
 }
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs b/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs
index 25084d8..65fac00 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs
@@ -34,12 +34,20 @@ namespace OpenSim.Region.Physics.BulletSPlugin
 
 public abstract class BSConstraint : IDisposable
 {
+    private static string LogHeader = "[BULLETSIM CONSTRAINT]";
+
     protected BulletSim m_world;
     protected BulletBody m_body1;
     protected BulletBody m_body2;
     protected BulletConstraint m_constraint;
     protected bool m_enabled = false;
 
+    public BulletBody Body1 { get { return m_body1; } }
+    public BulletBody Body2 { get { return m_body2; } }
+    public BulletConstraint Constraint { get { return m_constraint; } }
+    public abstract ConstraintType Type { get; }
+    public bool IsEnabled { get { return m_enabled; } }
+
     public BSConstraint()
     {
     }
@@ -48,22 +56,25 @@ public abstract class BSConstraint : IDisposable
     {
         if (m_enabled)
         {
-            // BulletSimAPI.RemoveConstraint(m_world.ID, m_body1.ID, m_body2.ID);
-            bool success = BulletSimAPI.DestroyConstraint2(m_world.Ptr, m_constraint.Ptr);
-            m_world.scene.DetailLog("{0},BSConstraint.Dispose,taint,body1={1},body2={2},success={3}", BSScene.DetailLogZero, m_body1.ID, m_body2.ID, success);
-            m_constraint.Ptr = System.IntPtr.Zero;
             m_enabled = false;
+            if (m_constraint.ptr != IntPtr.Zero)
+            {
+                bool success = BulletSimAPI.DestroyConstraint2(m_world.ptr, m_constraint.ptr);
+                m_world.physicsScene.DetailLog("{0},BSConstraint.Dispose,taint,id1={1},body1={2},id2={3},body2={4},success={5}",
+                                    BSScene.DetailLogZero,
+                                    m_body1.ID, m_body1.ptr.ToString("X"),
+                                    m_body2.ID, m_body2.ptr.ToString("X"),
+                                    success);
+                m_constraint.ptr = System.IntPtr.Zero;
+            }
         }
     }
 
-    public BulletBody Body1 { get { return m_body1; } }
-    public BulletBody Body2 { get { return m_body2; } }
-
     public virtual bool SetLinearLimits(Vector3 low, Vector3 high)
     {
         bool ret = false;
         if (m_enabled)
-            ret = BulletSimAPI.SetLinearLimits2(m_constraint.Ptr, low, high);
+            ret = BulletSimAPI.SetLinearLimits2(m_constraint.ptr, low, high);
         return ret;
     }
 
@@ -71,7 +82,18 @@ public abstract class BSConstraint : IDisposable
     {
         bool ret = false;
         if (m_enabled)
-            ret = BulletSimAPI.SetAngularLimits2(m_constraint.Ptr, low, high);
+            ret = BulletSimAPI.SetAngularLimits2(m_constraint.ptr, low, high);
+        return ret;
+    }
+
+    public virtual bool SetSolverIterations(float cnt)
+    {
+        bool ret = false;
+        if (m_enabled)
+        {
+            BulletSimAPI.SetConstraintNumSolverIterations2(m_constraint.ptr, cnt);
+            ret = true;
+        }
         return ret;
     }
 
@@ -81,7 +103,7 @@ public abstract class BSConstraint : IDisposable
         if (m_enabled)
         {
             // Recompute the internal transforms
-            BulletSimAPI.CalculateTransforms2(m_constraint.Ptr);
+            BulletSimAPI.CalculateTransforms2(m_constraint.ptr);
             ret = true;
         }
         return ret;
@@ -97,13 +119,14 @@ public abstract class BSConstraint : IDisposable
             ret = CalculateTransforms();
             if (ret)
             {
-                // m_world.scene.PhysicsLogging.Write("{0},BSConstraint.RecomputeConstraintVariables,taint,enabling,A={1},B={2}",
-                //                 BSScene.DetailLogZero, Body1.ID, Body2.ID);
-                BulletSimAPI.SetConstraintEnable2(m_constraint.Ptr, m_world.scene.NumericBool(true));
+                // Setting an object's mass to zero (making it static like when it's selected)
+                //     automatically disables the constraints.
+                // If the link is enabled, be sure to set the constraint itself to enabled.
+                BulletSimAPI.SetConstraintEnable2(m_constraint.ptr, m_world.physicsScene.NumericBool(true));
             }
             else
             {
-                m_world.scene.Logger.ErrorFormat("[BULLETSIM CONSTRAINT] CalculateTransforms failed. A={0}, B={1}", Body1.ID, Body2.ID);
+                m_world.physicsScene.Logger.ErrorFormat("{0} CalculateTransforms failed. A={1}, B={2}", LogHeader, Body1.ID, Body2.ID);
             }
         }
         return ret;
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BS6DofConstraint.cs b/OpenSim/Region/Physics/BulletSPlugin/BSConstraint6Dof.cs
index 683bc51..23ef052 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BS6DofConstraint.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSConstraint6Dof.cs
@@ -32,10 +32,14 @@ using OpenMetaverse;
 namespace OpenSim.Region.Physics.BulletSPlugin
 {
 
-public class BS6DofConstraint : BSConstraint
+public sealed class BSConstraint6Dof : BSConstraint
 {
+    private static string LogHeader = "[BULLETSIM 6DOF CONSTRAINT]";
+
+    public override ConstraintType Type { get { return ConstraintType.D6_CONSTRAINT_TYPE; } }
+
     // Create a btGeneric6DofConstraint
-    public BS6DofConstraint(BulletSim world, BulletBody obj1, BulletBody obj2,
+    public BSConstraint6Dof(BulletSim world, BulletBody obj1, BulletBody obj2,
                     Vector3 frame1, Quaternion frame1rot,
                     Vector3 frame2, Quaternion frame2rot,
                     bool useLinearReferenceFrameA, bool disableCollisionsBetweenLinkedBodies)
@@ -44,25 +48,52 @@ public class BS6DofConstraint : BSConstraint
         m_body1 = obj1;
         m_body2 = obj2;
         m_constraint = new BulletConstraint(
-                            BulletSimAPI.Create6DofConstraint2(m_world.Ptr, m_body1.Ptr, m_body2.Ptr,
+                            BulletSimAPI.Create6DofConstraint2(m_world.ptr, m_body1.ptr, m_body2.ptr,
                                 frame1, frame1rot,
                                 frame2, frame2rot,
                                 useLinearReferenceFrameA, disableCollisionsBetweenLinkedBodies));
         m_enabled = true;
+        world.physicsScene.DetailLog("{0},BS6DofConstraint,createFrame,wID={1}, rID={2}, rBody={3}, cID={4}, cBody={5}",
+                            BSScene.DetailLogZero, world.worldID,
+                            obj1.ID, obj1.ptr.ToString("X"), obj2.ID, obj2.ptr.ToString("X"));
     }
 
-    public BS6DofConstraint(BulletSim world, BulletBody obj1, BulletBody obj2,
+    public BSConstraint6Dof(BulletSim world, BulletBody obj1, BulletBody obj2,
                     Vector3 joinPoint,
                     bool useLinearReferenceFrameA, bool disableCollisionsBetweenLinkedBodies)
     {
         m_world = world;
         m_body1 = obj1;
         m_body2 = obj2;
-        m_constraint = new BulletConstraint(
-                            BulletSimAPI.Create6DofConstraintToPoint2(m_world.Ptr, m_body1.Ptr, m_body2.Ptr,
-                                joinPoint,
-                                useLinearReferenceFrameA, disableCollisionsBetweenLinkedBodies));
-        m_enabled = true;
+        if (obj1.ptr == IntPtr.Zero || obj2.ptr == IntPtr.Zero)
+        {
+            world.physicsScene.DetailLog("{0},BS6DOFConstraint,badBodyPtr,wID={1}, rID={2}, rBody={3}, cID={4}, cBody={5}",
+                            BSScene.DetailLogZero, world.worldID,
+                            obj1.ID, obj1.ptr.ToString("X"), obj2.ID, obj2.ptr.ToString("X"));
+            world.physicsScene.Logger.ErrorFormat("{0} Attempt to build 6DOF constraint with missing bodies: wID={1}, rID={2}, rBody={3}, cID={4}, cBody={5}",
+                            LogHeader, world.worldID, obj1.ID, obj1.ptr.ToString("X"), obj2.ID, obj2.ptr.ToString("X"));
+            m_enabled = false;
+        }
+        else
+        {
+            m_constraint = new BulletConstraint(
+                                BulletSimAPI.Create6DofConstraintToPoint2(m_world.ptr, m_body1.ptr, m_body2.ptr,
+                                    joinPoint,
+                                    useLinearReferenceFrameA, disableCollisionsBetweenLinkedBodies));
+            world.physicsScene.DetailLog("{0},BS6DofConstraint,createMidPoint,wID={1}, csrt={2}, rID={3}, rBody={4}, cID={5}, cBody={6}",
+                                BSScene.DetailLogZero, world.worldID, m_constraint.ptr.ToString("X"),
+                                obj1.ID, obj1.ptr.ToString("X"), obj2.ID, obj2.ptr.ToString("X"));
+            if (m_constraint.ptr == IntPtr.Zero)
+            {
+                world.physicsScene.Logger.ErrorFormat("{0} Failed creation of 6Dof constraint. rootID={1}, childID={2}",
+                                LogHeader, obj1.ID, obj2.ID);
+                m_enabled = false;
+            }
+            else
+            {
+                m_enabled = true;
+            }
+        }
     }
 
     public bool SetFrames(Vector3 frameA, Quaternion frameArot, Vector3 frameB, Quaternion frameBrot)
@@ -70,7 +101,7 @@ public class BS6DofConstraint : BSConstraint
         bool ret = false;
         if (m_enabled)
         {
-            BulletSimAPI.SetFrames2(m_constraint.Ptr, frameA, frameArot, frameB, frameBrot);
+            BulletSimAPI.SetFrames2(m_constraint.ptr, frameA, frameArot, frameB, frameBrot);
             ret = true;
         }
         return ret;
@@ -81,9 +112,9 @@ public class BS6DofConstraint : BSConstraint
         bool ret = false;
         if (m_enabled)
         {
-            BulletSimAPI.SetConstraintParam2(m_constraint.Ptr, ConstraintParams.BT_CONSTRAINT_STOP_CFM, cfm, ConstraintParamAxis.AXIS_ALL);
-            BulletSimAPI.SetConstraintParam2(m_constraint.Ptr, ConstraintParams.BT_CONSTRAINT_STOP_ERP, erp, ConstraintParamAxis.AXIS_ALL);
-            BulletSimAPI.SetConstraintParam2(m_constraint.Ptr, ConstraintParams.BT_CONSTRAINT_CFM, cfm, ConstraintParamAxis.AXIS_ALL);
+            BulletSimAPI.SetConstraintParam2(m_constraint.ptr, ConstraintParams.BT_CONSTRAINT_STOP_CFM, cfm, ConstraintParamAxis.AXIS_ALL);
+            BulletSimAPI.SetConstraintParam2(m_constraint.ptr, ConstraintParams.BT_CONSTRAINT_STOP_ERP, erp, ConstraintParamAxis.AXIS_ALL);
+            BulletSimAPI.SetConstraintParam2(m_constraint.ptr, ConstraintParams.BT_CONSTRAINT_CFM, cfm, ConstraintParamAxis.AXIS_ALL);
             ret = true;
         }
         return ret;
@@ -94,7 +125,7 @@ public class BS6DofConstraint : BSConstraint
         bool ret = false;
         float onOff = useOffset ? ConfigurationParameters.numericTrue : ConfigurationParameters.numericFalse;
         if (m_enabled)
-            ret = BulletSimAPI.UseFrameOffset2(m_constraint.Ptr, onOff);
+            ret = BulletSimAPI.UseFrameOffset2(m_constraint.ptr, onOff);
         return ret;
     }
 
@@ -103,7 +134,11 @@ public class BS6DofConstraint : BSConstraint
         bool ret = false;
         float onOff = enable ? ConfigurationParameters.numericTrue : ConfigurationParameters.numericFalse;
         if (m_enabled)
-            ret = BulletSimAPI.TranslationalLimitMotor2(m_constraint.Ptr, onOff, targetVelocity, maxMotorForce);
+        {
+            ret = BulletSimAPI.TranslationalLimitMotor2(m_constraint.ptr, onOff, targetVelocity, maxMotorForce);
+            m_world.physicsScene.DetailLog("{0},BS6DOFConstraint,TransLimitMotor,enable={1},vel={2},maxForce={3}",
+                            BSScene.DetailLogZero, enable, targetVelocity, maxMotorForce);
+        }
         return ret;
     }
 
@@ -111,7 +146,7 @@ public class BS6DofConstraint : BSConstraint
     {
         bool ret = false;
         if (m_enabled)
-            ret = BulletSimAPI.SetBreakingImpulseThreshold2(m_constraint.Ptr, threshold);
+            ret = BulletSimAPI.SetBreakingImpulseThreshold2(m_constraint.ptr, threshold);
         return ret;
     }
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSConstraintCollection.cs b/OpenSim/Region/Physics/BulletSPlugin/BSConstraintCollection.cs
index 22ea367..a9fd826 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSConstraintCollection.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSConstraintCollection.cs
@@ -33,7 +33,7 @@ using OpenMetaverse;
 namespace OpenSim.Region.Physics.BulletSPlugin
 {
 
-public class BSConstraintCollection : IDisposable
+public sealed class BSConstraintCollection : IDisposable
 {
     // private static readonly ILog m_log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
     // private static readonly string LogHeader = "[CONSTRAINT COLLECTION]";
@@ -143,8 +143,6 @@ public class BSConstraintCollection : IDisposable
     // Return 'true' if any constraints were destroyed.
     public bool RemoveAndDestroyConstraint(BulletBody body1)
     {
-        // return BulletSimAPI.RemoveConstraintByID(m_world.ID, obj.ID);
-
         List<BSConstraint> toRemove = new List<BSConstraint>();
         uint lookingID = body1.ID;
         lock (m_constraints)
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSHingeConstraint.cs b/OpenSim/Region/Physics/BulletSPlugin/BSConstraintHinge.cs
index d68048b..ed3ffa7 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSHingeConstraint.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSConstraintHinge.cs
@@ -1,55 +1,57 @@
-/*

- * Copyright (c) Contributors, http://opensimulator.org/

- * See CONTRIBUTORS.TXT for a full list of copyright holders.

- *

- * Redistribution and use in source and binary forms, with or without

- * modification, are permitted provided that the following conditions are met:

- *     * Redistributions of source code must retain the above copyright

- *       notice, this list of conditions and the following disclaimer.

- *     * Redistributions in binary form must reproduce the above copyrightD

- *       notice, this list of conditions and the following disclaimer in the

- *       documentation and/or other materials provided with the distribution.

- *     * Neither the name of the OpenSimulator Project nor the

- *       names of its contributors may be used to endorse or promote products

- *       derived from this software without specific prior written permission.

- *

- * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY

- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

- * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY

- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

- */

-using System;

-using System.Collections.Generic;

-using System.Text;

-using OpenMetaverse;

-

-namespace OpenSim.Region.Physics.BulletSPlugin

-{

-

-class BSHingeConstraint : BSConstraint

-{

-    public BSHingeConstraint(BulletSim world, BulletBody obj1, BulletBody obj2,

-                    Vector3 pivotInA, Vector3 pivotInB,

-                    Vector3 axisInA, Vector3 axisInB,

-                    bool useLinearReferenceFrameA, bool disableCollisionsBetweenLinkedBodies)

-    {

-        m_world = world;

-        m_body1 = obj1;

-        m_body2 = obj2;

-        m_constraint = new BulletConstraint(

-                            BulletSimAPI.CreateHingeConstraint2(m_world.Ptr, m_body1.Ptr, m_body2.Ptr,

-                                pivotInA, pivotInB,

-                                axisInA, axisInB,

-                                useLinearReferenceFrameA, disableCollisionsBetweenLinkedBodies));

-        m_enabled = true;

-    }

-

-}

-

-}

+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyrightD
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+using System;
+using System.Collections.Generic;
+using System.Text;
+using OpenMetaverse;
+
+namespace OpenSim.Region.Physics.BulletSPlugin
+{
+
+public sealed class BSConstraintHinge : BSConstraint
+{
+    public override ConstraintType Type { get { return ConstraintType.HINGE_CONSTRAINT_TYPE; } }
+
+    public BSConstraintHinge(BulletSim world, BulletBody obj1, BulletBody obj2,
+                    Vector3 pivotInA, Vector3 pivotInB,
+                    Vector3 axisInA, Vector3 axisInB,
+                    bool useLinearReferenceFrameA, bool disableCollisionsBetweenLinkedBodies)
+    {
+        m_world = world;
+        m_body1 = obj1;
+        m_body2 = obj2;
+        m_constraint = new BulletConstraint(
+                            BulletSimAPI.CreateHingeConstraint2(m_world.ptr, m_body1.ptr, m_body2.ptr,
+                                pivotInA, pivotInB,
+                                axisInA, axisInB,
+                                useLinearReferenceFrameA, disableCollisionsBetweenLinkedBodies));
+        m_enabled = true;
+    }
+
+}
+
+}
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs b/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs
index 5a9f135..819635a 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs
@@ -23,7 +23,7 @@
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
+ *
 
 /* RA: June 14, 2011. Copied from ODEDynamics.cs and converted to
  * call the BulletSim system.
@@ -52,19 +52,15 @@ using OpenSim.Region.Physics.Manager;
 
 namespace OpenSim.Region.Physics.BulletSPlugin
 {
-    public class BSDynamics
+    public sealed class BSDynamics
     {
-        private int frcount = 0;                                        // Used to limit dynamics debug output to
-                                                                        // every 100th frame
-
-        private BSPrim m_prim;      // the prim this dynamic controller belongs to
+        private BSScene PhysicsScene { get; set; }
+        // the prim this dynamic controller belongs to
+        private BSPrim Prim { get; set; }
 
         // Vehicle properties
-        private Vehicle m_type = Vehicle.TYPE_NONE;                     // If a 'VEHICLE', and what kind
-        public Vehicle Type
-        {
-            get { return m_type; }
-        }
+        public Vehicle Type { get; set; }
+
         // private Quaternion m_referenceFrame = Quaternion.Identity;   // Axis modifier
         private VehicleFlag m_flags = (VehicleFlag) 0;                  // Boolean settings:
                                                                         // HOVER_TERRAIN_ONLY
@@ -74,13 +70,15 @@ namespace OpenSim.Region.Physics.BulletSPlugin
                                                                         // HOVER_UP_ONLY
                                                                         // LIMIT_MOTOR_UP
                                                                         // LIMIT_ROLL_ONLY
-        private VehicleFlag m_Hoverflags = (VehicleFlag)0;
         private Vector3 m_BlockingEndPoint = Vector3.Zero;
         private Quaternion m_RollreferenceFrame = Quaternion.Identity;
+        private Quaternion m_referenceFrame = Quaternion.Identity;
+
         // Linear properties
         private Vector3 m_linearMotorDirection = Vector3.Zero;          // velocity requested by LSL, decayed by time
+        private Vector3 m_linearMotorOffset = Vector3.Zero;             // the point of force can be offset from the center
         private Vector3 m_linearMotorDirectionLASTSET = Vector3.Zero;   // velocity requested by LSL
-        private Vector3 m_dir = Vector3.Zero;                           // velocity applied to body
+        private Vector3 m_newVelocity = Vector3.Zero;                   // velocity computed to be applied to body
         private Vector3 m_linearFrictionTimescale = Vector3.Zero;
         private float m_linearMotorDecayTimescale = 0;
         private float m_linearMotorTimescale = 0;
@@ -91,28 +89,28 @@ namespace OpenSim.Region.Physics.BulletSPlugin
 
         //Angular properties
         private Vector3 m_angularMotorDirection = Vector3.Zero;         // angular velocity requested by LSL motor
-        private int m_angularMotorApply = 0;                            // application frame counter
+        // private int m_angularMotorApply = 0;                            // application frame counter
         private Vector3 m_angularMotorVelocity = Vector3.Zero;          // current angular motor velocity
         private float m_angularMotorTimescale = 0;                      // motor angular velocity ramp up rate
         private float m_angularMotorDecayTimescale = 0;                 // motor angular velocity decay rate
         private Vector3 m_angularFrictionTimescale = Vector3.Zero;      // body angular velocity  decay rate
         private Vector3 m_lastAngularVelocity = Vector3.Zero;           // what was last applied to body
- //       private Vector3 m_lastVertAttractor = Vector3.Zero;             // what VA was last applied to body
+        private Vector3 m_lastVertAttractor = Vector3.Zero;             // what VA was last applied to body
 
         //Deflection properties
-        // private float m_angularDeflectionEfficiency = 0;
-        // private float m_angularDeflectionTimescale = 0;
-        // private float m_linearDeflectionEfficiency = 0;
-        // private float m_linearDeflectionTimescale = 0;
+        private float m_angularDeflectionEfficiency = 0;
+        private float m_angularDeflectionTimescale = 0;
+        private float m_linearDeflectionEfficiency = 0;
+        private float m_linearDeflectionTimescale = 0;
 
         //Banking properties
-        // private float m_bankingEfficiency = 0;
-        // private float m_bankingMix = 0;
-        // private float m_bankingTimescale = 0;
+        private float m_bankingEfficiency = 0;
+        private float m_bankingMix = 0;
+        private float m_bankingTimescale = 0;
 
         //Hover and Buoyancy properties
         private float m_VhoverHeight = 0f;
-//        private float m_VhoverEfficiency = 0f;
+        private float m_VhoverEfficiency = 0f;
         private float m_VhoverTimescale = 0f;
         private float m_VhoverTargetHeight = -1.0f;     // if <0 then no hover, else its the current target height
         private float m_VehicleBuoyancy = 0f;           //KF: m_VehicleBuoyancy is set by VEHICLE_BUOYANCY for a vehicle.
@@ -124,86 +122,74 @@ namespace OpenSim.Region.Physics.BulletSPlugin
         private float m_verticalAttractionEfficiency = 1.0f;        // damped
         private float m_verticalAttractionTimescale = 500f;         // Timescale > 300  means no vert attractor.
 
-        public BSDynamics(BSPrim myPrim)
+        public BSDynamics(BSScene myScene, BSPrim myPrim)
+        {
+            PhysicsScene = myScene;
+            Prim = myPrim;
+            Type = Vehicle.TYPE_NONE;
+        }
+
+        // Return 'true' if this vehicle is doing vehicle things
+        public bool IsActive
         {
-            m_prim = myPrim;
-            m_type = Vehicle.TYPE_NONE;
+            get { return Type != Vehicle.TYPE_NONE; }
         }
 
-        internal void ProcessFloatVehicleParam(Vehicle pParam, float pValue, float timestep)
+        internal void ProcessFloatVehicleParam(Vehicle pParam, float pValue)
         {
-            DetailLog("{0},ProcessFloatVehicleParam,param={1},val={2}", m_prim.LocalID, pParam, pValue);
+            VDetailLog("{0},ProcessFloatVehicleParam,param={1},val={2}", Prim.LocalID, pParam, pValue);
             switch (pParam)
             {
                 case Vehicle.ANGULAR_DEFLECTION_EFFICIENCY:
-                    if (pValue < 0.01f) pValue = 0.01f;
-                    // m_angularDeflectionEfficiency = pValue;
+                    m_angularDeflectionEfficiency = Math.Max(pValue, 0.01f);
                     break;
                 case Vehicle.ANGULAR_DEFLECTION_TIMESCALE:
-                    if (pValue < 0.01f) pValue = 0.01f;
-                    // m_angularDeflectionTimescale = pValue;
+                    m_angularDeflectionTimescale = Math.Max(pValue, 0.01f);
                     break;
                 case Vehicle.ANGULAR_MOTOR_DECAY_TIMESCALE:
-                    if (pValue < 0.01f) pValue = 0.01f;
-                    m_angularMotorDecayTimescale = pValue;
+                    m_angularMotorDecayTimescale = Math.Max(pValue, 0.01f);
                     break;
                 case Vehicle.ANGULAR_MOTOR_TIMESCALE:
-                    if (pValue < 0.01f) pValue = 0.01f;
-                    m_angularMotorTimescale = pValue;
+                    m_angularMotorTimescale = Math.Max(pValue, 0.01f);
                     break;
                 case Vehicle.BANKING_EFFICIENCY:
-                    if (pValue < 0.01f) pValue = 0.01f;
-                    // m_bankingEfficiency = pValue;
+                    m_bankingEfficiency = Math.Max(-1f, Math.Min(pValue, 1f));
                     break;
                 case Vehicle.BANKING_MIX:
-                    if (pValue < 0.01f) pValue = 0.01f;
-                    // m_bankingMix = pValue;
+                    m_bankingMix = Math.Max(pValue, 0.01f);
                     break;
                 case Vehicle.BANKING_TIMESCALE:
-                    if (pValue < 0.01f) pValue = 0.01f;
-                    // m_bankingTimescale = pValue;
+                    m_bankingTimescale = Math.Max(pValue, 0.01f);
                     break;
                 case Vehicle.BUOYANCY:
-                    if (pValue < -1f) pValue = -1f;
-                    if (pValue > 1f) pValue = 1f;
-                    m_VehicleBuoyancy = pValue;
-                    break;
-//                case Vehicle.HOVER_EFFICIENCY:
-//                    if (pValue < 0f) pValue = 0f;
-//                    if (pValue > 1f) pValue = 1f;
-//                    m_VhoverEfficiency = pValue;
-//                    break;
+                    m_VehicleBuoyancy = Math.Max(-1f, Math.Min(pValue, 1f));
+                    break;
+                case Vehicle.HOVER_EFFICIENCY:
+                    m_VhoverEfficiency = Math.Max(0f, Math.Min(pValue, 1f));
+                    break;
                 case Vehicle.HOVER_HEIGHT:
                     m_VhoverHeight = pValue;
                     break;
                 case Vehicle.HOVER_TIMESCALE:
-                    if (pValue < 0.01f) pValue = 0.01f;
-                    m_VhoverTimescale = pValue;
+                    m_VhoverTimescale = Math.Max(pValue, 0.01f);
                     break;
                 case Vehicle.LINEAR_DEFLECTION_EFFICIENCY:
-                    if (pValue < 0.01f) pValue = 0.01f;
-                    // m_linearDeflectionEfficiency = pValue;
+                    m_linearDeflectionEfficiency = Math.Max(pValue, 0.01f);
                     break;
                 case Vehicle.LINEAR_DEFLECTION_TIMESCALE:
-                    if (pValue < 0.01f) pValue = 0.01f;
-                    // m_linearDeflectionTimescale = pValue;
+                    m_linearDeflectionTimescale = Math.Max(pValue, 0.01f);
                     break;
                 case Vehicle.LINEAR_MOTOR_DECAY_TIMESCALE:
-                    if (pValue < 0.01f) pValue = 0.01f;
-                    m_linearMotorDecayTimescale = pValue;
+                    m_linearMotorDecayTimescale = Math.Max(pValue, 0.01f);
                     break;
                 case Vehicle.LINEAR_MOTOR_TIMESCALE:
-                    if (pValue < 0.01f) pValue = 0.01f;
-                    m_linearMotorTimescale = pValue;
+                    m_linearMotorTimescale = Math.Max(pValue, 0.01f);
                     break;
                 case Vehicle.VERTICAL_ATTRACTION_EFFICIENCY:
-                    if (pValue < 0.1f) pValue = 0.1f;    // Less goes unstable
-                    if (pValue > 1.0f) pValue = 1.0f;
-                    m_verticalAttractionEfficiency = pValue;
+                    m_verticalAttractionEfficiency = Math.Max(0.1f, Math.Min(pValue, 1f));
                     break;
                 case Vehicle.VERTICAL_ATTRACTION_TIMESCALE:
-                    if (pValue < 0.01f) pValue = 0.01f;
-                    m_verticalAttractionTimescale = pValue;
+                    m_verticalAttractionTimescale = Math.Max(pValue, 0.01f);
                     break;
 
                 // These are vector properties but the engine lets you use a single float value to
@@ -213,7 +199,7 @@ namespace OpenSim.Region.Physics.BulletSPlugin
                     break;
                 case Vehicle.ANGULAR_MOTOR_DIRECTION:
                     m_angularMotorDirection = new Vector3(pValue, pValue, pValue);
-                    m_angularMotorApply = 10;
+                    // m_angularMotorApply = 100;
                     break;
                 case Vehicle.LINEAR_FRICTION_TIMESCALE:
                     m_linearFrictionTimescale = new Vector3(pValue, pValue, pValue);
@@ -223,30 +209,27 @@ namespace OpenSim.Region.Physics.BulletSPlugin
                     m_linearMotorDirectionLASTSET = new Vector3(pValue, pValue, pValue);
                     break;
                 case Vehicle.LINEAR_MOTOR_OFFSET:
-                    // m_linearMotorOffset = new Vector3(pValue, pValue, pValue);
+                    m_linearMotorOffset = new Vector3(pValue, pValue, pValue);
                     break;
 
             }
         }//end ProcessFloatVehicleParam
 
-        internal void ProcessVectorVehicleParam(Vehicle pParam, Vector3 pValue, float timestep)
+        internal void ProcessVectorVehicleParam(Vehicle pParam, Vector3 pValue)
         {
-            DetailLog("{0},ProcessVectorVehicleParam,param={1},val={2}", m_prim.LocalID, pParam, pValue);
+            VDetailLog("{0},ProcessVectorVehicleParam,param={1},val={2}", Prim.LocalID, pParam, pValue);
             switch (pParam)
             {
                 case Vehicle.ANGULAR_FRICTION_TIMESCALE:
                     m_angularFrictionTimescale = new Vector3(pValue.X, pValue.Y, pValue.Z);
                     break;
                 case Vehicle.ANGULAR_MOTOR_DIRECTION:
-                    m_angularMotorDirection = new Vector3(pValue.X, pValue.Y, pValue.Z);
                     // Limit requested angular speed to 2 rps= 4 pi rads/sec
-                    if (m_angularMotorDirection.X > 12.56f) m_angularMotorDirection.X = 12.56f;
-                    if (m_angularMotorDirection.X < - 12.56f) m_angularMotorDirection.X = - 12.56f;
-                    if (m_angularMotorDirection.Y > 12.56f) m_angularMotorDirection.Y = 12.56f;
-                    if (m_angularMotorDirection.Y < - 12.56f) m_angularMotorDirection.Y = - 12.56f;
-                    if (m_angularMotorDirection.Z > 12.56f) m_angularMotorDirection.Z = 12.56f;
-                    if (m_angularMotorDirection.Z < - 12.56f) m_angularMotorDirection.Z = - 12.56f;
-                    m_angularMotorApply = 10;
+                    pValue.X = Math.Max(-12.56f, Math.Min(pValue.X, 12.56f));
+                    pValue.Y = Math.Max(-12.56f, Math.Min(pValue.Y, 12.56f));
+                    pValue.Z = Math.Max(-12.56f, Math.Min(pValue.Z, 12.56f));
+                    m_angularMotorDirection = new Vector3(pValue.X, pValue.Y, pValue.Z);
+                    // m_angularMotorApply = 100;
                     break;
                 case Vehicle.LINEAR_FRICTION_TIMESCALE:
                     m_linearFrictionTimescale = new Vector3(pValue.X, pValue.Y, pValue.Z);
@@ -256,7 +239,7 @@ namespace OpenSim.Region.Physics.BulletSPlugin
                     m_linearMotorDirectionLASTSET = new Vector3(pValue.X, pValue.Y, pValue.Z);
                     break;
                 case Vehicle.LINEAR_MOTOR_OFFSET:
-                    // m_linearMotorOffset = new Vector3(pValue.X, pValue.Y, pValue.Z);
+                    m_linearMotorOffset = new Vector3(pValue.X, pValue.Y, pValue.Z);
                     break;
                 case Vehicle.BLOCK_EXIT:
                     m_BlockingEndPoint = new Vector3(pValue.X, pValue.Y, pValue.Z);
@@ -266,11 +249,11 @@ namespace OpenSim.Region.Physics.BulletSPlugin
 
         internal void ProcessRotationVehicleParam(Vehicle pParam, Quaternion pValue)
         {
-            DetailLog("{0},ProcessRotationalVehicleParam,param={1},val={2}", m_prim.LocalID, pParam, pValue);
+            VDetailLog("{0},ProcessRotationalVehicleParam,param={1},val={2}", Prim.LocalID, pParam, pValue);
             switch (pParam)
             {
                 case Vehicle.REFERENCE_FRAME:
-                    // m_referenceFrame = pValue;
+                    m_referenceFrame = pValue;
                     break;
                 case Vehicle.ROLL_FRAME:
                     m_RollreferenceFrame = pValue;
@@ -280,575 +263,492 @@ namespace OpenSim.Region.Physics.BulletSPlugin
 
         internal void ProcessVehicleFlags(int pParam, bool remove)
         {
-            DetailLog("{0},ProcessVehicleFlags,param={1},remove={2}", m_prim.LocalID, pParam, remove);
-            if (remove)
-            {
-                if (pParam == -1)
-                {
-                    m_flags = (VehicleFlag)0;
-                    m_Hoverflags = (VehicleFlag)0;
-                    return;
-                }
-                if ((pParam & (int)VehicleFlag.HOVER_GLOBAL_HEIGHT) == (int)VehicleFlag.HOVER_GLOBAL_HEIGHT)
-                {
-                    if ((m_Hoverflags & VehicleFlag.HOVER_GLOBAL_HEIGHT) != (VehicleFlag)0)
-                        m_Hoverflags &= ~(VehicleFlag.HOVER_GLOBAL_HEIGHT);
-                }
-                if ((pParam & (int)VehicleFlag.HOVER_TERRAIN_ONLY) == (int)VehicleFlag.HOVER_TERRAIN_ONLY)
-                {
-                    if ((m_Hoverflags & VehicleFlag.HOVER_TERRAIN_ONLY) != (VehicleFlag)0)
-                        m_Hoverflags &= ~(VehicleFlag.HOVER_TERRAIN_ONLY);
-                }
-                if ((pParam & (int)VehicleFlag.HOVER_UP_ONLY) == (int)VehicleFlag.HOVER_UP_ONLY)
-                {
-                    if ((m_Hoverflags & VehicleFlag.HOVER_UP_ONLY) != (VehicleFlag)0)
-                        m_Hoverflags &= ~(VehicleFlag.HOVER_UP_ONLY);
-                }
-                if ((pParam & (int)VehicleFlag.HOVER_WATER_ONLY) == (int)VehicleFlag.HOVER_WATER_ONLY)
-                {
-                    if ((m_Hoverflags & VehicleFlag.HOVER_WATER_ONLY) != (VehicleFlag)0)
-                        m_Hoverflags &= ~(VehicleFlag.HOVER_WATER_ONLY);
-                }
-                if ((pParam & (int)VehicleFlag.LIMIT_MOTOR_UP) == (int)VehicleFlag.LIMIT_MOTOR_UP)
-                {
-                    if ((m_flags & VehicleFlag.LIMIT_MOTOR_UP) != (VehicleFlag)0)
-                        m_flags &= ~(VehicleFlag.LIMIT_MOTOR_UP);
-                }
-                if ((pParam & (int)VehicleFlag.LIMIT_ROLL_ONLY) == (int)VehicleFlag.LIMIT_ROLL_ONLY)
-                {
-                    if ((m_flags & VehicleFlag.LIMIT_ROLL_ONLY) != (VehicleFlag)0)
-                        m_flags &= ~(VehicleFlag.LIMIT_ROLL_ONLY);
-                }
-                if ((pParam & (int)VehicleFlag.MOUSELOOK_BANK) == (int)VehicleFlag.MOUSELOOK_BANK)
-                {
-                    if ((m_flags & VehicleFlag.MOUSELOOK_BANK) != (VehicleFlag)0)
-                        m_flags &= ~(VehicleFlag.MOUSELOOK_BANK);
-                }
-                if ((pParam & (int)VehicleFlag.MOUSELOOK_STEER) == (int)VehicleFlag.MOUSELOOK_STEER)
-                {
-                    if ((m_flags & VehicleFlag.MOUSELOOK_STEER) != (VehicleFlag)0)
-                        m_flags &= ~(VehicleFlag.MOUSELOOK_STEER);
-                }
-                if ((pParam & (int)VehicleFlag.NO_DEFLECTION_UP) == (int)VehicleFlag.NO_DEFLECTION_UP)
-                {
-                    if ((m_flags & VehicleFlag.NO_DEFLECTION_UP) != (VehicleFlag)0)
-                        m_flags &= ~(VehicleFlag.NO_DEFLECTION_UP);
-                }
-                if ((pParam & (int)VehicleFlag.CAMERA_DECOUPLED) == (int)VehicleFlag.CAMERA_DECOUPLED)
-                {
-                    if ((m_flags & VehicleFlag.CAMERA_DECOUPLED) != (VehicleFlag)0)
-                        m_flags &= ~(VehicleFlag.CAMERA_DECOUPLED);
-                }
-                if ((pParam & (int)VehicleFlag.NO_X) == (int)VehicleFlag.NO_X)
-                {
-                    if ((m_flags & VehicleFlag.NO_X) != (VehicleFlag)0)
-                        m_flags &= ~(VehicleFlag.NO_X);
-                }
-                if ((pParam & (int)VehicleFlag.NO_Y) == (int)VehicleFlag.NO_Y)
-                {
-                    if ((m_flags & VehicleFlag.NO_Y) != (VehicleFlag)0)
-                        m_flags &= ~(VehicleFlag.NO_Y);
-                }
-                if ((pParam & (int)VehicleFlag.NO_Z) == (int)VehicleFlag.NO_Z)
-                {
-                    if ((m_flags & VehicleFlag.NO_Z) != (VehicleFlag)0)
-                        m_flags &= ~(VehicleFlag.NO_Z);
-                }
-                if ((pParam & (int)VehicleFlag.LOCK_HOVER_HEIGHT) == (int)VehicleFlag.LOCK_HOVER_HEIGHT)
-                {
-                    if ((m_Hoverflags & VehicleFlag.LOCK_HOVER_HEIGHT) != (VehicleFlag)0)
-                        m_Hoverflags &= ~(VehicleFlag.LOCK_HOVER_HEIGHT);
-                }
-                if ((pParam & (int)VehicleFlag.NO_DEFLECTION) == (int)VehicleFlag.NO_DEFLECTION)
-                {
-                    if ((m_flags & VehicleFlag.NO_DEFLECTION) != (VehicleFlag)0)
-                        m_flags &= ~(VehicleFlag.NO_DEFLECTION);
-                }
-                if ((pParam & (int)VehicleFlag.LOCK_ROTATION) == (int)VehicleFlag.LOCK_ROTATION)
-                {
-                    if ((m_flags & VehicleFlag.LOCK_ROTATION) != (VehicleFlag)0)
-                        m_flags &= ~(VehicleFlag.LOCK_ROTATION);
-                }
-            }
+            VDetailLog("{0},ProcessVehicleFlags,param={1},remove={2}", Prim.LocalID, pParam, remove);
+            VehicleFlag parm = (VehicleFlag)pParam;
+            if (pParam == -1)
+                m_flags = (VehicleFlag)0;
             else
             {
-                if ((pParam & (int)VehicleFlag.HOVER_GLOBAL_HEIGHT) == (int)VehicleFlag.HOVER_GLOBAL_HEIGHT)
-                {
-                    m_Hoverflags |= (VehicleFlag.HOVER_GLOBAL_HEIGHT | m_flags);
-                }
-                if ((pParam & (int)VehicleFlag.HOVER_TERRAIN_ONLY) == (int)VehicleFlag.HOVER_TERRAIN_ONLY)
-                {
-                    m_Hoverflags |= (VehicleFlag.HOVER_TERRAIN_ONLY | m_flags);
-                }
-                if ((pParam & (int)VehicleFlag.HOVER_UP_ONLY) == (int)VehicleFlag.HOVER_UP_ONLY)
-                {
-                    m_Hoverflags |= (VehicleFlag.HOVER_UP_ONLY | m_flags);
-                }
-                if ((pParam & (int)VehicleFlag.HOVER_WATER_ONLY) == (int)VehicleFlag.HOVER_WATER_ONLY)
-                {
-                    m_Hoverflags |= (VehicleFlag.HOVER_WATER_ONLY | m_flags);
-                }
-                if ((pParam & (int)VehicleFlag.LIMIT_MOTOR_UP) == (int)VehicleFlag.LIMIT_MOTOR_UP)
-                {
-                    m_flags |= (VehicleFlag.LIMIT_MOTOR_UP | m_flags);
-                }
-                if ((pParam & (int)VehicleFlag.MOUSELOOK_BANK) == (int)VehicleFlag.MOUSELOOK_BANK)
-                {
-                    m_flags |= (VehicleFlag.MOUSELOOK_BANK | m_flags);
-                }
-                if ((pParam & (int)VehicleFlag.MOUSELOOK_STEER) == (int)VehicleFlag.MOUSELOOK_STEER)
-                {
-                    m_flags |= (VehicleFlag.MOUSELOOK_STEER | m_flags);
-                }
-                if ((pParam & (int)VehicleFlag.NO_DEFLECTION_UP) == (int)VehicleFlag.NO_DEFLECTION_UP)
-                {
-                    m_flags |= (VehicleFlag.NO_DEFLECTION_UP | m_flags);
-                }
-                if ((pParam & (int)VehicleFlag.CAMERA_DECOUPLED) == (int)VehicleFlag.CAMERA_DECOUPLED)
-                {
-                    m_flags |= (VehicleFlag.CAMERA_DECOUPLED | m_flags);
-                }
-                if ((pParam & (int)VehicleFlag.NO_X) == (int)VehicleFlag.NO_X)
-                {
-                    m_flags |= (VehicleFlag.NO_X);
-                }
-                if ((pParam & (int)VehicleFlag.NO_Y) == (int)VehicleFlag.NO_Y)
-                {
-                    m_flags |= (VehicleFlag.NO_Y);
-                }
-                if ((pParam & (int)VehicleFlag.NO_Z) == (int)VehicleFlag.NO_Z)
-                {
-                    m_flags |= (VehicleFlag.NO_Z);
-                }
-                if ((pParam & (int)VehicleFlag.LOCK_HOVER_HEIGHT) == (int)VehicleFlag.LOCK_HOVER_HEIGHT)
-                {
-                    m_Hoverflags |= (VehicleFlag.LOCK_HOVER_HEIGHT);
-                }
-                if ((pParam & (int)VehicleFlag.NO_DEFLECTION) == (int)VehicleFlag.NO_DEFLECTION)
-                {
-                    m_flags |= (VehicleFlag.NO_DEFLECTION);
-                }
-                if ((pParam & (int)VehicleFlag.LOCK_ROTATION) == (int)VehicleFlag.LOCK_ROTATION)
-                {
-                    m_flags |= (VehicleFlag.LOCK_ROTATION);
-                }
+                if (remove)
+                    m_flags &= ~parm;
+                else
+                    m_flags |= parm;
             }
-        }//end ProcessVehicleFlags
+        }
 
         internal void ProcessTypeChange(Vehicle pType)
         {
-            DetailLog("{0},ProcessTypeChange,type={1}", m_prim.LocalID, pType);
+            VDetailLog("{0},ProcessTypeChange,type={1}", Prim.LocalID, pType);
             // Set Defaults For Type
-            m_type = pType;
+            Type = pType;
             switch (pType)
             {
-                    case Vehicle.TYPE_NONE:
-                    m_linearFrictionTimescale = new Vector3(0, 0, 0);
-                    m_angularFrictionTimescale = new Vector3(0, 0, 0);
+                case Vehicle.TYPE_NONE:
                     m_linearMotorDirection = Vector3.Zero;
                     m_linearMotorTimescale = 0;
                     m_linearMotorDecayTimescale = 0;
+                    m_linearFrictionTimescale = new Vector3(0, 0, 0);
+
                     m_angularMotorDirection = Vector3.Zero;
-                    m_angularMotorTimescale = 0;
                     m_angularMotorDecayTimescale = 0;
+                    m_angularMotorTimescale = 0;
+                    m_angularFrictionTimescale = new Vector3(0, 0, 0);
+
                     m_VhoverHeight = 0;
+                    m_VhoverEfficiency = 0;
                     m_VhoverTimescale = 0;
                     m_VehicleBuoyancy = 0;
+                    
+                    m_linearDeflectionEfficiency = 1;
+                    m_linearDeflectionTimescale = 1;
+
+                    m_angularDeflectionEfficiency = 0;
+                    m_angularDeflectionTimescale = 1000;
+
+                    m_verticalAttractionEfficiency = 0;
+                    m_verticalAttractionTimescale = 0;
+
+                    m_bankingEfficiency = 0;
+                    m_bankingTimescale = 1000;
+                    m_bankingMix = 1;
+
+                    m_referenceFrame = Quaternion.Identity;
                     m_flags = (VehicleFlag)0;
                     break;
 
                 case Vehicle.TYPE_SLED:
-                    m_linearFrictionTimescale = new Vector3(30, 1, 1000);
-                    m_angularFrictionTimescale = new Vector3(1000, 1000, 1000);
                     m_linearMotorDirection = Vector3.Zero;
                     m_linearMotorTimescale = 1000;
                     m_linearMotorDecayTimescale = 120;
+                    m_linearFrictionTimescale = new Vector3(30, 1, 1000);
+
                     m_angularMotorDirection = Vector3.Zero;
                     m_angularMotorTimescale = 1000;
                     m_angularMotorDecayTimescale = 120;
+                    m_angularFrictionTimescale = new Vector3(1000, 1000, 1000);
+
                     m_VhoverHeight = 0;
-//                    m_VhoverEfficiency = 1;
+                    m_VhoverEfficiency = 10;    // TODO: this looks wrong!!
                     m_VhoverTimescale = 10;
                     m_VehicleBuoyancy = 0;
-                    // m_linearDeflectionEfficiency = 1;
-                    // m_linearDeflectionTimescale = 1;
-                    // m_angularDeflectionEfficiency = 1;
-                    // m_angularDeflectionTimescale = 1000;
-                    // m_bankingEfficiency = 0;
-                    // m_bankingMix = 1;
-                    // m_bankingTimescale = 10;
-                    // m_referenceFrame = Quaternion.Identity;
-                    m_Hoverflags &=
+
+                    m_linearDeflectionEfficiency = 1;
+                    m_linearDeflectionTimescale = 1;
+
+                    m_angularDeflectionEfficiency = 1;
+                    m_angularDeflectionTimescale = 1000;
+
+                    m_verticalAttractionEfficiency = 0;
+                    m_verticalAttractionTimescale = 0;
+
+                    m_bankingEfficiency = 0;
+                    m_bankingTimescale = 10;
+                    m_bankingMix = 1;
+
+                    m_referenceFrame = Quaternion.Identity;
+                    m_flags |= (VehicleFlag.NO_DEFLECTION_UP | VehicleFlag.LIMIT_ROLL_ONLY | VehicleFlag.LIMIT_MOTOR_UP);
+                    m_flags &=
                          ~(VehicleFlag.HOVER_WATER_ONLY | VehicleFlag.HOVER_TERRAIN_ONLY |
                            VehicleFlag.HOVER_GLOBAL_HEIGHT | VehicleFlag.HOVER_UP_ONLY);
-                    m_flags |= (VehicleFlag.NO_DEFLECTION_UP | VehicleFlag.LIMIT_ROLL_ONLY | VehicleFlag.LIMIT_MOTOR_UP);
                     break;
                 case Vehicle.TYPE_CAR:
-                    m_linearFrictionTimescale = new Vector3(100, 2, 1000);
-                    m_angularFrictionTimescale = new Vector3(1000, 1000, 1000);
                     m_linearMotorDirection = Vector3.Zero;
                     m_linearMotorTimescale = 1;
                     m_linearMotorDecayTimescale = 60;
+                    m_linearFrictionTimescale = new Vector3(100, 2, 1000);
+
                     m_angularMotorDirection = Vector3.Zero;
                     m_angularMotorTimescale = 1;
                     m_angularMotorDecayTimescale = 0.8f;
+                    m_angularFrictionTimescale = new Vector3(1000, 1000, 1000);
+
                     m_VhoverHeight = 0;
-//                    m_VhoverEfficiency = 0;
+                    m_VhoverEfficiency = 0;
                     m_VhoverTimescale = 1000;
                     m_VehicleBuoyancy = 0;
-                    // // m_linearDeflectionEfficiency = 1;
-                    // // m_linearDeflectionTimescale = 2;
-                    // // m_angularDeflectionEfficiency = 0;
-                    // m_angularDeflectionTimescale = 10;
+
+                    m_linearDeflectionEfficiency = 1;
+                    m_linearDeflectionTimescale = 2;
+
+                    m_angularDeflectionEfficiency = 0;
+                    m_angularDeflectionTimescale = 10;
+
                     m_verticalAttractionEfficiency = 1f;
                     m_verticalAttractionTimescale = 10f;
-                    // m_bankingEfficiency = -0.2f;
-                    // m_bankingMix = 1;
-                    // m_bankingTimescale = 1;
-                    // m_referenceFrame = Quaternion.Identity;
-                    m_Hoverflags &= ~(VehicleFlag.HOVER_WATER_ONLY | VehicleFlag.HOVER_TERRAIN_ONLY | VehicleFlag.HOVER_GLOBAL_HEIGHT);
-                    m_flags |= (VehicleFlag.NO_DEFLECTION_UP | VehicleFlag.LIMIT_ROLL_ONLY |
-                                VehicleFlag.LIMIT_MOTOR_UP);
-                    m_Hoverflags |= (VehicleFlag.HOVER_UP_ONLY);
+
+                    m_bankingEfficiency = -0.2f;
+                    m_bankingMix = 1;
+                    m_bankingTimescale = 1;
+
+                    m_referenceFrame = Quaternion.Identity;
+                    m_flags &= ~(VehicleFlag.HOVER_WATER_ONLY
+                                | VehicleFlag.HOVER_TERRAIN_ONLY
+                                | VehicleFlag.HOVER_GLOBAL_HEIGHT);
+                    m_flags |= (VehicleFlag.NO_DEFLECTION_UP
+                                | VehicleFlag.LIMIT_ROLL_ONLY
+                                | VehicleFlag.LIMIT_MOTOR_UP
+                                | VehicleFlag.HOVER_UP_ONLY);
                     break;
                 case Vehicle.TYPE_BOAT:
-                    m_linearFrictionTimescale = new Vector3(10, 3, 2);
-                    m_angularFrictionTimescale = new Vector3(10,10,10);
                     m_linearMotorDirection = Vector3.Zero;
                     m_linearMotorTimescale = 5;
                     m_linearMotorDecayTimescale = 60;
+                    m_linearFrictionTimescale = new Vector3(10, 3, 2);
+
                     m_angularMotorDirection = Vector3.Zero;
                     m_angularMotorTimescale = 4;
                     m_angularMotorDecayTimescale = 4;
+                    m_angularFrictionTimescale = new Vector3(10,10,10);
+
                     m_VhoverHeight = 0;
-//                    m_VhoverEfficiency = 0.5f;
+                    m_VhoverEfficiency = 0.5f;
                     m_VhoverTimescale = 2;
                     m_VehicleBuoyancy = 1;
-                    // m_linearDeflectionEfficiency = 0.5f;
-                    // m_linearDeflectionTimescale = 3;
-                    // m_angularDeflectionEfficiency = 0.5f;
-                    // m_angularDeflectionTimescale = 5;
+
+                    m_linearDeflectionEfficiency = 0.5f;
+                    m_linearDeflectionTimescale = 3;
+
+                    m_angularDeflectionEfficiency = 0.5f;
+                    m_angularDeflectionTimescale = 5;
+
                     m_verticalAttractionEfficiency = 0.5f;
                     m_verticalAttractionTimescale = 5f;
-                    // m_bankingEfficiency = -0.3f;
-                    // m_bankingMix = 0.8f;
-                    // m_bankingTimescale = 1;
-                    // m_referenceFrame = Quaternion.Identity;
-                    m_Hoverflags &= ~(VehicleFlag.HOVER_TERRAIN_ONLY |
-                            VehicleFlag.HOVER_GLOBAL_HEIGHT | VehicleFlag.HOVER_UP_ONLY);
-                    m_flags &= ~(VehicleFlag.LIMIT_ROLL_ONLY);
-                    m_flags |= (VehicleFlag.NO_DEFLECTION_UP |
-                                VehicleFlag.LIMIT_MOTOR_UP);
-                    m_Hoverflags |= (VehicleFlag.HOVER_WATER_ONLY);
+
+                    m_bankingEfficiency = -0.3f;
+                    m_bankingMix = 0.8f;
+                    m_bankingTimescale = 1;
+
+                    m_referenceFrame = Quaternion.Identity;
+                    m_flags &= ~(VehicleFlag.HOVER_TERRAIN_ONLY
+                                    | VehicleFlag.HOVER_GLOBAL_HEIGHT
+                                    | VehicleFlag.LIMIT_ROLL_ONLY
+                                    | VehicleFlag.HOVER_UP_ONLY);
+                    m_flags |= (VehicleFlag.NO_DEFLECTION_UP
+                                    | VehicleFlag.LIMIT_MOTOR_UP
+                                    | VehicleFlag.HOVER_WATER_ONLY);
                     break;
                 case Vehicle.TYPE_AIRPLANE:
-                    m_linearFrictionTimescale = new Vector3(200, 10, 5);
-                    m_angularFrictionTimescale = new Vector3(20, 20, 20);
                     m_linearMotorDirection = Vector3.Zero;
                     m_linearMotorTimescale = 2;
                     m_linearMotorDecayTimescale = 60;
+                    m_linearFrictionTimescale = new Vector3(200, 10, 5);
+
                     m_angularMotorDirection = Vector3.Zero;
                     m_angularMotorTimescale = 4;
                     m_angularMotorDecayTimescale = 4;
+                    m_angularFrictionTimescale = new Vector3(20, 20, 20);
+
                     m_VhoverHeight = 0;
-//                    m_VhoverEfficiency = 0.5f;
+                    m_VhoverEfficiency = 0.5f;
                     m_VhoverTimescale = 1000;
                     m_VehicleBuoyancy = 0;
-                    // m_linearDeflectionEfficiency = 0.5f;
-                    // m_linearDeflectionTimescale = 3;
-                    // m_angularDeflectionEfficiency = 1;
-                    // m_angularDeflectionTimescale = 2;
+
+                    m_linearDeflectionEfficiency = 0.5f;
+                    m_linearDeflectionTimescale = 3;
+
+                    m_angularDeflectionEfficiency = 1;
+                    m_angularDeflectionTimescale = 2;
+
                     m_verticalAttractionEfficiency = 0.9f;
                     m_verticalAttractionTimescale = 2f;
-                    // m_bankingEfficiency = 1;
-                    // m_bankingMix = 0.7f;
-                    // m_bankingTimescale = 2;
-                    // m_referenceFrame = Quaternion.Identity;
-                    m_Hoverflags &= ~(VehicleFlag.HOVER_WATER_ONLY | VehicleFlag.HOVER_TERRAIN_ONLY |
-                        VehicleFlag.HOVER_GLOBAL_HEIGHT | VehicleFlag.HOVER_UP_ONLY);
-                    m_flags &= ~(VehicleFlag.NO_DEFLECTION_UP | VehicleFlag.LIMIT_MOTOR_UP);
+
+                    m_bankingEfficiency = 1;
+                    m_bankingMix = 0.7f;
+                    m_bankingTimescale = 2;
+
+                    m_referenceFrame = Quaternion.Identity;
+                    m_flags &= ~(VehicleFlag.HOVER_WATER_ONLY
+                                    | VehicleFlag.HOVER_TERRAIN_ONLY
+                                    | VehicleFlag.HOVER_GLOBAL_HEIGHT
+                                    | VehicleFlag.HOVER_UP_ONLY
+                                    | VehicleFlag.NO_DEFLECTION_UP
+                                    | VehicleFlag.LIMIT_MOTOR_UP);
                     m_flags |= (VehicleFlag.LIMIT_ROLL_ONLY);
                     break;
                 case Vehicle.TYPE_BALLOON:
-                    m_linearFrictionTimescale = new Vector3(5, 5, 5);
-                    m_angularFrictionTimescale = new Vector3(10, 10, 10);
                     m_linearMotorDirection = Vector3.Zero;
                     m_linearMotorTimescale = 5;
+                    m_linearFrictionTimescale = new Vector3(5, 5, 5);
                     m_linearMotorDecayTimescale = 60;
+
                     m_angularMotorDirection = Vector3.Zero;
                     m_angularMotorTimescale = 6;
+                    m_angularFrictionTimescale = new Vector3(10, 10, 10);
                     m_angularMotorDecayTimescale = 10;
+
                     m_VhoverHeight = 5;
-//                    m_VhoverEfficiency = 0.8f;
+                    m_VhoverEfficiency = 0.8f;
                     m_VhoverTimescale = 10;
                     m_VehicleBuoyancy = 1;
-                    // m_linearDeflectionEfficiency = 0;
-                    // m_linearDeflectionTimescale = 5;
-                    // m_angularDeflectionEfficiency = 0;
-                    // m_angularDeflectionTimescale = 5;
+
+                    m_linearDeflectionEfficiency = 0;
+                    m_linearDeflectionTimescale = 5;
+
+                    m_angularDeflectionEfficiency = 0;
+                    m_angularDeflectionTimescale = 5;
+
                     m_verticalAttractionEfficiency = 1f;
                     m_verticalAttractionTimescale = 100f;
-                    // m_bankingEfficiency = 0;
-                    // m_bankingMix = 0.7f;
-                    // m_bankingTimescale = 5;
-                    // m_referenceFrame = Quaternion.Identity;
-                    m_Hoverflags &= ~(VehicleFlag.HOVER_WATER_ONLY | VehicleFlag.HOVER_TERRAIN_ONLY |
-                        VehicleFlag.HOVER_UP_ONLY);
-                    m_flags &= ~(VehicleFlag.NO_DEFLECTION_UP | VehicleFlag.LIMIT_MOTOR_UP);
-                    m_flags |= (VehicleFlag.LIMIT_ROLL_ONLY);
-                    m_Hoverflags |= (VehicleFlag.HOVER_GLOBAL_HEIGHT);
+
+                    m_bankingEfficiency = 0;
+                    m_bankingMix = 0.7f;
+                    m_bankingTimescale = 5;
+                    m_referenceFrame = Quaternion.Identity;
+
+                    m_referenceFrame = Quaternion.Identity;
+                    m_flags &= ~(VehicleFlag.HOVER_WATER_ONLY
+                                    | VehicleFlag.HOVER_TERRAIN_ONLY
+                                    | VehicleFlag.HOVER_UP_ONLY
+                                    | VehicleFlag.NO_DEFLECTION_UP
+                                    | VehicleFlag.LIMIT_MOTOR_UP);
+                    m_flags |= (VehicleFlag.LIMIT_ROLL_ONLY
+                                    | VehicleFlag.HOVER_GLOBAL_HEIGHT);
                     break;
             }
-        }//end SetDefaultsForType
+        }
 
+        // Some of the properties of this prim may have changed.
+        // Do any updating needed for a vehicle
+        public void Refresh()
+        {
+            if (IsActive)
+            {
+                // Friction effects are handled by this vehicle code
+                BulletSimAPI.SetFriction2(Prim.PhysBody.ptr, 0f);
+                BulletSimAPI.SetHitFraction2(Prim.PhysBody.ptr, 0f);
+            }
+        }
+
+        // One step of the vehicle properties for the next 'pTimestep' seconds.
         internal void Step(float pTimestep)
         {
-            if (m_type == Vehicle.TYPE_NONE) return;
+            if (!IsActive) return;
 
-            frcount++;  // used to limit debug comment output
-            if (frcount > 100)
-                frcount = 0;
+            // DEBUG
+            // Because Bullet does apply forces to the vehicle, our last computed
+            //     linear and angular velocities are not what is happening now.
+            // Vector3 externalAngularVelocity = Prim.ForceRotationalVelocity - m_lastAngularVelocity;
+            // m_lastAngularVelocity += (externalAngularVelocity * 0.5f) * pTimestep;
+            // m_lastAngularVelocity = Prim.ForceRotationalVelocity;   // DEBUG: account for what Bullet did last time
+            // m_lastLinearVelocityVector = Prim.ForceVelocity * Quaternion.Inverse(Prim.ForceOrientation);        // DEBUG:
+            // END DEBUG
 
             MoveLinear(pTimestep);
             MoveAngular(pTimestep);
             LimitRotation(pTimestep);
 
-            DetailLog("{0},BSDynamics.Step,done,pos={1},force={2},velocity={3},angvel={4}", 
-                    m_prim.LocalID, m_prim.Position, m_prim.Force, m_prim.Velocity, m_prim.RotationalVelocity);
+            // DEBUG: Trying to figure out why Bullet goes crazy when the root prim is moved.
+            // BulletSimAPI.SetInterpolationVelocity2(Prim.BSBody.ptr, m_newVelocity, m_lastAngularVelocity); // DEBUG DEBUG DEBUG
+
+            // remember the position so next step we can limit absolute movement effects
+            m_lastPositionVector = Prim.ForcePosition;
+
+            VDetailLog("{0},BSDynamics.Step,done,pos={1},force={2},velocity={3},angvel={4}",
+                    Prim.LocalID, Prim.ForcePosition, Prim.Force, Prim.ForceVelocity, Prim.RotationalVelocity);
         }// end Step
 
+        // Apply the effect of the linear motor.
+        // Also does hover and float.
         private void MoveLinear(float pTimestep)
         {
-            // requested m_linearMotorDirection is significant
-            // if (!m_linearMotorDirection.ApproxEquals(Vector3.Zero, 0.01f))
-            if (m_linearMotorDirection.LengthSquared() > 0.0001f)
+            // m_linearMotorDirection is the target direction we are moving relative to the vehicle coordinates
+            // m_lastLinearVelocityVector is the current speed we are moving in that direction
+            if (m_linearMotorDirection.LengthSquared() > 0.001f)
             {
                 Vector3 origDir = m_linearMotorDirection;
                 Vector3 origVel = m_lastLinearVelocityVector;
+                Vector3 vehicleVelocity = Prim.ForceVelocity * Quaternion.Inverse(Prim.ForceOrientation);   // DEBUG
 
                 // add drive to body
-                // Vector3 addAmount = m_linearMotorDirection/(m_linearMotorTimescale/pTimestep);
-                Vector3 addAmount = m_linearMotorDirection/(m_linearMotorTimescale);
-                // lastLinearVelocityVector is the current body velocity vector?
-                // RA: Not sure what the *10 is for. A correction for pTimestep?
-                // m_lastLinearVelocityVector += (addAmount*10);  
-                m_lastLinearVelocityVector += addAmount;  
-
-                // This will work temporarily, but we really need to compare speed on an axis
-                // KF: Limit body velocity to applied velocity?
-                // Limit the velocity vector to less than the last set linear motor direction
-                if (Math.Abs(m_lastLinearVelocityVector.X) > Math.Abs(m_linearMotorDirectionLASTSET.X))
-                    m_lastLinearVelocityVector.X = m_linearMotorDirectionLASTSET.X;
-                if (Math.Abs(m_lastLinearVelocityVector.Y) > Math.Abs(m_linearMotorDirectionLASTSET.Y))
-                    m_lastLinearVelocityVector.Y = m_linearMotorDirectionLASTSET.Y;
-                if (Math.Abs(m_lastLinearVelocityVector.Z) > Math.Abs(m_linearMotorDirectionLASTSET.Z))
-                    m_lastLinearVelocityVector.Z = m_linearMotorDirectionLASTSET.Z;
-
-                // decay applied velocity
-                Vector3 decayfraction = ((Vector3.One/(m_linearMotorDecayTimescale/pTimestep)));
-                m_linearMotorDirection -= m_linearMotorDirection * decayfraction * 0.5f;
-
-                /*
-                Vector3 addAmount = (m_linearMotorDirection - m_lastLinearVelocityVector)/m_linearMotorTimescale;
+                Vector3 addAmount = (m_linearMotorDirection - m_lastLinearVelocityVector)/(m_linearMotorTimescale) * pTimestep;
+                // lastLinearVelocityVector is the current body velocity vector
                 m_lastLinearVelocityVector += addAmount;
 
-                float decayfraction = (1.0f - 1.0f / m_linearMotorDecayTimescale);
-                m_linearMotorDirection *= decayfraction;
+                float decayFactor = (1.0f / m_linearMotorDecayTimescale) * pTimestep;
+                m_linearMotorDirection *= (1f - decayFactor);
 
-                 */
+                Vector3 frictionFactor = (Vector3.One / m_linearFrictionTimescale) * pTimestep;
+                m_lastLinearVelocityVector *= (Vector3.One - frictionFactor);
 
-                DetailLog("{0},MoveLinear,nonZero,origdir={1},origvel={2},add={3},decay={4},dir={5},vel={6}",
-                    m_prim.LocalID, origDir, origVel, addAmount, decayfraction, m_linearMotorDirection, m_lastLinearVelocityVector);
+                // Rotate new object velocity from vehicle relative to world coordinates
+                m_newVelocity = m_lastLinearVelocityVector * Prim.ForceOrientation;
+
+                VDetailLog("{0},MoveLinear,nonZero,origdir={1},origvel={2},vehVel={3},add={4},decay={5},frict={6},lmDir={7},lmVel={8},newVel={9}",
+                                Prim.LocalID, origDir, origVel, vehicleVelocity, addAmount, decayFactor, frictionFactor, 
+                                m_linearMotorDirection, m_lastLinearVelocityVector, m_newVelocity);
             }
             else
             {
-                // if what remains of applied is small, zero it.
-                // if (m_lastLinearVelocityVector.ApproxEquals(Vector3.Zero, 0.01f))
-                //     m_lastLinearVelocityVector = Vector3.Zero;
+                // if what remains of direction is very small, zero it.
                 m_linearMotorDirection = Vector3.Zero;
                 m_lastLinearVelocityVector = Vector3.Zero;
-            }
+                m_newVelocity = Vector3.Zero;
 
-            // convert requested object velocity to world-referenced vector
-            Quaternion rotq = m_prim.Orientation;
-            m_dir = m_lastLinearVelocityVector * rotq;
+                VDetailLog("{0},MoveLinear,zeroed", Prim.LocalID);
+            }
 
-            // Add the various forces into m_dir which will be our new direction vector (velocity)
+            // m_newVelocity is velocity computed from linear motor in world coordinates
 
-            // add Gravity and Buoyancy
-            // KF: So far I have found no good method to combine a script-requested
-            // .Z velocity and gravity. Therefore only 0g will used script-requested
-            // .Z velocity. >0g (m_VehicleBuoyancy < 1) will used modified gravity only.
-            Vector3 grav = Vector3.Zero;
+            // Gravity and Buoyancy
             // There is some gravity, make a gravity force vector that is applied after object velocity.
             // m_VehicleBuoyancy: -1=2g; 0=1g; 1=0g;
-            grav.Z = m_prim.Scene.DefaultGravity.Z * m_prim.Mass * (1f - m_VehicleBuoyancy);
+            Vector3 grav = Prim.PhysicsScene.DefaultGravity * (1f - m_VehicleBuoyancy);
+
+            /*
+             * RA: Not sure why one would do this unless we are hoping external forces are doing gravity, ...
             // Preserve the current Z velocity
             Vector3 vel_now = m_prim.Velocity;
             m_dir.Z = vel_now.Z;        // Preserve the accumulated falling velocity
+             */
 
-            Vector3 pos = m_prim.Position;
-            Vector3 posChange = pos;
+            Vector3 pos = Prim.ForcePosition;
 //            Vector3 accel = new Vector3(-(m_dir.X - m_lastLinearVelocityVector.X / 0.1f), -(m_dir.Y - m_lastLinearVelocityVector.Y / 0.1f), m_dir.Z - m_lastLinearVelocityVector.Z / 0.1f);
-            double Zchange = Math.Abs(posChange.Z);
-            if (m_BlockingEndPoint != Vector3.Zero)
-            {
-                bool changed = false;
-                if (pos.X >= (m_BlockingEndPoint.X - (float)1))
-                {
-                    pos.X -= posChange.X + 1;
-                    changed = true;
-                }
-                if (pos.Y >= (m_BlockingEndPoint.Y - (float)1))
-                {
-                    pos.Y -= posChange.Y + 1;
-                    changed = true;
-                }
-                if (pos.Z >= (m_BlockingEndPoint.Z - (float)1))
-                {
-                    pos.Z -= posChange.Z + 1;
-                    changed = true;
-                }
-                if (pos.X <= 0)
-                {
-                    pos.X += posChange.X + 1;
-                    changed = true;
-                }
-                if (pos.Y <= 0)
-                {
-                    pos.Y += posChange.Y + 1;
-                    changed = true;
-                }
-                if (changed)
-                {
-                    m_prim.Position = pos;
-                    DetailLog("{0},MoveLinear,blockingEndPoint,block={1},origPos={2},pos={3}",
-                                m_prim.LocalID, m_BlockingEndPoint, posChange, pos);
-                }
-            }
 
             // If below the terrain, move us above the ground a little.
-            if (pos.Z < m_prim.Scene.GetTerrainHeightAtXYZ(pos))
+            float terrainHeight = Prim.PhysicsScene.TerrainManager.GetTerrainHeightAtXYZ(pos);
+            // Taking the rotated size doesn't work here because m_prim.Size is the size of the root prim and not the linkset.
+            //     Need to add a m_prim.LinkSet.Size similar to m_prim.LinkSet.Mass.
+            // Vector3 rotatedSize = m_prim.Size * m_prim.ForceOrientation;
+            // if (rotatedSize.Z < terrainHeight)
+            if (pos.Z < terrainHeight)
             {
-                pos.Z = m_prim.Scene.GetTerrainHeightAtXYZ(pos) + 2;
-                m_prim.Position = pos;
-                DetailLog("{0},MoveLinear,terrainHeight,pos={1}", m_prim.LocalID, pos);
+                pos.Z = terrainHeight + 2;
+                Prim.ForcePosition = pos;
+                VDetailLog("{0},MoveLinear,terrainHeight,terrainHeight={1},pos={2}", Prim.LocalID, terrainHeight, pos);
             }
 
             // Check if hovering
-            if ((m_Hoverflags & (VehicleFlag.HOVER_WATER_ONLY | VehicleFlag.HOVER_TERRAIN_ONLY | VehicleFlag.HOVER_GLOBAL_HEIGHT)) != 0)
+            // m_VhoverEfficiency: 0=bouncy, 1=totally damped
+            // m_VhoverTimescale: time to achieve height
+            if ((m_flags & (VehicleFlag.HOVER_WATER_ONLY | VehicleFlag.HOVER_TERRAIN_ONLY | VehicleFlag.HOVER_GLOBAL_HEIGHT)) != 0)
             {
                 // We should hover, get the target height
-                if ((m_Hoverflags & VehicleFlag.HOVER_WATER_ONLY) != 0)
+                if ((m_flags & VehicleFlag.HOVER_WATER_ONLY) != 0)
                 {
-                    m_VhoverTargetHeight = m_prim.Scene.GetWaterLevel() + m_VhoverHeight;
+                    m_VhoverTargetHeight = Prim.PhysicsScene.GetWaterLevelAtXYZ(pos) + m_VhoverHeight;
                 }
-                if ((m_Hoverflags & VehicleFlag.HOVER_TERRAIN_ONLY) != 0)
+                if ((m_flags & VehicleFlag.HOVER_TERRAIN_ONLY) != 0)
                 {
-                    m_VhoverTargetHeight = m_prim.Scene.GetTerrainHeightAtXY(pos.X, pos.Y) + m_VhoverHeight;
+                    m_VhoverTargetHeight = terrainHeight + m_VhoverHeight;
                 }
-                if ((m_Hoverflags & VehicleFlag.HOVER_GLOBAL_HEIGHT) != 0)
+                if ((m_flags & VehicleFlag.HOVER_GLOBAL_HEIGHT) != 0)
                 {
                     m_VhoverTargetHeight = m_VhoverHeight;
                 }
 
-                if ((m_Hoverflags & VehicleFlag.HOVER_UP_ONLY) != 0)
+                if ((m_flags & VehicleFlag.HOVER_UP_ONLY) != 0)
                 {
                     // If body is aready heigher, use its height as target height
                     if (pos.Z > m_VhoverTargetHeight) m_VhoverTargetHeight = pos.Z;
                 }
-                if ((m_Hoverflags & VehicleFlag.LOCK_HOVER_HEIGHT) != 0)
+                if ((m_flags & VehicleFlag.LOCK_HOVER_HEIGHT) != 0)
                 {
                     if ((pos.Z - m_VhoverTargetHeight) > .2 || (pos.Z - m_VhoverTargetHeight) < -.2)
                     {
-                        m_prim.Position = pos;
+                        Prim.ForcePosition = pos;
                     }
                 }
                 else
                 {
-                    float herr0 = pos.Z - m_VhoverTargetHeight;
+                    float verticalError = pos.Z - m_VhoverTargetHeight;
+                    // RA: where does the 50 come from?
+                    float verticalCorrectionVelocity = pTimestep * ((verticalError * 50.0f) / m_VhoverTimescale);
                     // Replace Vertical speed with correction figure if significant
-                    if (Math.Abs(herr0) > 0.01f)
+                    if (Math.Abs(verticalError) > 0.01f)
                     {
-                        m_dir.Z = -((herr0 * pTimestep * 50.0f) / m_VhoverTimescale);
+                        m_newVelocity.Z += verticalCorrectionVelocity;
                         //KF: m_VhoverEfficiency is not yet implemented
                     }
+                    else if (verticalError < -0.01)
+                    {
+                        m_newVelocity.Z -= verticalCorrectionVelocity;
+                    }
                     else
                     {
-                        m_dir.Z = 0f;
+                        m_newVelocity.Z = 0f;
                     }
                 }
 
-                DetailLog("{0},MoveLinear,hover,pos={1},dir={2},height={3},target={4}", m_prim.LocalID, pos, m_dir, m_VhoverHeight, m_VhoverTargetHeight);
+                VDetailLog("{0},MoveLinear,hover,pos={1},dir={2},height={3},target={4}", Prim.LocalID, pos, m_newVelocity, m_VhoverHeight, m_VhoverTargetHeight);
+            }
 
-//                m_VhoverEfficiency = 0f;    // 0=boucy, 1=Crit.damped
-//                m_VhoverTimescale = 0f;        // time to acheive height
-//                pTimestep  is time since last frame,in secs
+            Vector3 posChange = pos - m_lastPositionVector;
+            if (m_BlockingEndPoint != Vector3.Zero)
+            {
+                bool changed = false;
+                if (pos.X >= (m_BlockingEndPoint.X - (float)1))
+                {
+                    pos.X -= posChange.X + 1;
+                    changed = true;
+                }
+                if (pos.Y >= (m_BlockingEndPoint.Y - (float)1))
+                {
+                    pos.Y -= posChange.Y + 1;
+                    changed = true;
+                }
+                if (pos.Z >= (m_BlockingEndPoint.Z - (float)1))
+                {
+                    pos.Z -= posChange.Z + 1;
+                    changed = true;
+                }
+                if (pos.X <= 0)
+                {
+                    pos.X += posChange.X + 1;
+                    changed = true;
+                }
+                if (pos.Y <= 0)
+                {
+                    pos.Y += posChange.Y + 1;
+                    changed = true;
+                }
+                if (changed)
+                {
+                    Prim.ForcePosition = pos;
+                    VDetailLog("{0},MoveLinear,blockingEndPoint,block={1},origPos={2},pos={3}",
+                                Prim.LocalID, m_BlockingEndPoint, posChange, pos);
+                }
             }
 
+            // Limit absolute vertical change
+            float Zchange = Math.Abs(posChange.Z);
             if ((m_flags & (VehicleFlag.LIMIT_MOTOR_UP)) != 0)
             {
-                //Start Experimental Values
                 if (Zchange > .3)
-                {
                     grav.Z = (float)(grav.Z * 3);
-                }
                 if (Zchange > .15)
-                {
                     grav.Z = (float)(grav.Z * 2);
-                }
                 if (Zchange > .75)
-                {
                     grav.Z = (float)(grav.Z * 1.5);
-                }
                 if (Zchange > .05)
-                {
                     grav.Z = (float)(grav.Z * 1.25);
-                }
                 if (Zchange > .025)
-                {
                     grav.Z = (float)(grav.Z * 1.125);
-                }
-                float terraintemp = m_prim.Scene.GetTerrainHeightAtXYZ(pos);
-                float postemp = (pos.Z - terraintemp);
+                float postemp = (pos.Z - terrainHeight);
                 if (postemp > 2.5f)
-                {
                     grav.Z = (float)(grav.Z * 1.037125);
-                }
-                DetailLog("{0},MoveLinear,limitMotorUp,grav={1}", m_prim.LocalID, grav);
-                //End Experimental Values
+                VDetailLog("{0},MoveLinear,limitMotorUp,grav={1}", Prim.LocalID, grav);
             }
+
+            // If not changing some axis, reduce out velocity
             if ((m_flags & (VehicleFlag.NO_X)) != 0)
-            {
-                m_dir.X = 0;
-            }
+                m_newVelocity.X = 0;
             if ((m_flags & (VehicleFlag.NO_Y)) != 0)
-            {
-                m_dir.Y = 0;
-            }
+                m_newVelocity.Y = 0;
             if ((m_flags & (VehicleFlag.NO_Z)) != 0)
-            {
-                m_dir.Z = 0;
-            }
-
-            m_lastPositionVector = m_prim.Position;
+                m_newVelocity.Z = 0;
 
             // Apply velocity
-            m_prim.Velocity = m_dir;
-            // apply gravity force
-            // Why is this set here? The physics engine already does gravity.
-            // m_prim.AddForce(grav, false);
-            // m_prim.Force = grav;
+            Prim.ForceVelocity = m_newVelocity;
+            // Prim.AddForce(m_newVelocity * Prim.Linkset.LinksetMass, false);
+            Prim.AddForce(grav * Prim.Linkset.LinksetMass, false);
 
-            // Apply friction
-            Vector3 decayamount = Vector3.One / (m_linearFrictionTimescale / pTimestep);
-            m_lastLinearVelocityVector -= m_lastLinearVelocityVector * decayamount;
-
-            DetailLog("{0},MoveLinear,done,pos={1},vel={2},force={3},decay={4}", 
-                        m_prim.LocalID, m_lastPositionVector, m_dir, grav, decayamount);
+            VDetailLog("{0},MoveLinear,done,lmDir={1},lmVel={2},newVel={3},grav={4}",
+                    Prim.LocalID, m_linearMotorDirection, m_lastLinearVelocityVector, m_newVelocity, grav);
 
         } // end MoveLinear()
 
+        // =======================================================================
+        // Apply the effect of the angular motor.
         private void MoveAngular(float pTimestep)
         {
             // m_angularMotorDirection         // angular velocity requested by LSL motor
@@ -859,160 +759,223 @@ namespace OpenSim.Region.Physics.BulletSPlugin
             // m_angularFrictionTimescale      // body angular velocity  decay rate
             // m_lastAngularVelocity           // what was last applied to body
 
-            // Get what the body is doing, this includes 'external' influences
-            Vector3 angularVelocity = m_prim.RotationalVelocity;
-
-            if (m_angularMotorApply > 0)
+            if (m_angularMotorDirection.LengthSquared() > 0.0001)
             {
-                // Rather than snapping the angular motor velocity from the old value to
-                //    a newly set velocity, this routine steps the value from the previous
-                //    value (m_angularMotorVelocity) to the requested value (m_angularMotorDirection).
-                // There are m_angularMotorApply steps.
-                Vector3 origAngularVelocity = m_angularMotorVelocity;
-                // ramp up to new value
-                //   current velocity  +=                         error                       /    (time to get there / step interval)
-                //                               requested speed            -  last motor speed
-                m_angularMotorVelocity.X += (m_angularMotorDirection.X - m_angularMotorVelocity.X) /  (m_angularMotorTimescale / pTimestep);
-                m_angularMotorVelocity.Y += (m_angularMotorDirection.Y - m_angularMotorVelocity.Y) /  (m_angularMotorTimescale / pTimestep);
-                m_angularMotorVelocity.Z += (m_angularMotorDirection.Z - m_angularMotorVelocity.Z) /  (m_angularMotorTimescale / pTimestep);
-
-                DetailLog("{0},MoveAngular,angularMotorApply,apply={1},origvel={2},dir={3},vel={4}", 
-                        m_prim.LocalID,m_angularMotorApply,origAngularVelocity, m_angularMotorDirection, m_angularMotorVelocity);
-
-                m_angularMotorApply--;        // This is done so that if script request rate is less than phys frame rate the expected
-                                            // velocity may still be acheived.
+                Vector3 origVel = m_angularMotorVelocity;
+                Vector3 origDir = m_angularMotorDirection;
+
+                //       new velocity    +=                      error                       /  (  time to get there   / step interval)
+                //                             requested speed     -    last motor speed
+                m_angularMotorVelocity += (m_angularMotorDirection - m_angularMotorVelocity) /  (m_angularMotorTimescale / pTimestep);
+                // decay requested direction
+                m_angularMotorDirection *= (1.0f - (pTimestep * 1.0f/m_angularMotorDecayTimescale));
+
+                VDetailLog("{0},MoveAngular,angularMotorApply,angTScale={1},timeStep={2},origvel={3},origDir={4},vel={5}",
+                        Prim.LocalID, m_angularMotorTimescale, pTimestep, origVel, origDir, m_angularMotorVelocity);
             }
             else
             {
-                // No motor recently applied, keep the body velocity
-                // and decay the velocity
-                m_angularMotorVelocity -= m_angularMotorVelocity /  (m_angularMotorDecayTimescale / pTimestep);
-            } // end motor section
+                m_angularMotorVelocity = Vector3.Zero;
+            }
+
+            #region Vertical attactor
 
-            // Vertical attractor section
             Vector3 vertattr = Vector3.Zero;
-            if (m_verticalAttractionTimescale < 300)
+            Vector3 deflection = Vector3.Zero;
+            Vector3 banking = Vector3.Zero;
+
+            if (m_verticalAttractionTimescale < 300 && m_lastAngularVelocity != Vector3.Zero)
             {
-                float VAservo = 0.2f / (m_verticalAttractionTimescale * pTimestep);
-                // get present body rotation
-                Quaternion rotq = m_prim.Orientation;
-                // make a vector pointing up
-                Vector3 verterr = Vector3.Zero;
-                verterr.Z = 1.0f;
-                // rotate it to Body Angle
-                verterr = verterr * rotq;
-                // verterr.X and .Y are the World error ammounts. They are 0 when there is no error (Vehicle Body is 'vertical'), and .Z will be 1.
-                // As the body leans to its side |.X| will increase to 1 and .Z fall to 0. As body inverts |.X| will fall and .Z will go
-                // negative. Similar for tilt and |.Y|. .X and .Y must be modulated to prevent a stable inverted body.
-                if (verterr.Z < 0.0f)
+                float VAservo = pTimestep * 0.2f / m_verticalAttractionTimescale;
+                if (Prim.Linkset.LinksetIsColliding)
+                    VAservo = pTimestep * 0.05f / (m_verticalAttractionTimescale);
+
+                VAservo *= (m_verticalAttractionEfficiency * m_verticalAttractionEfficiency);
+
+                // Create a vector of the vehicle "up" in world coordinates
+                Vector3 verticalError = Vector3.UnitZ * Prim.ForceOrientation;
+                // verticalError.X and .Y are the World error amounts. They are 0 when there is no
+                //      error (Vehicle Body is 'vertical'), and .Z will be 1. As the body leans to its
+                //      side |.X| will increase to 1 and .Z fall to 0. As body inverts |.X| will fall
+                //      and .Z will go // negative. Similar for tilt and |.Y|. .X and .Y must be
+                //      modulated to prevent a stable inverted body.
+
+                // Error is 0 (no error) to +/- 2 (max error)
+                if (verticalError.Z < 0.0f)
                 {
-                    verterr.X = 2.0f - verterr.X;
-                    verterr.Y = 2.0f - verterr.Y;
+                    verticalError.X = 2.0f - verticalError.X;
+                    verticalError.Y = 2.0f - verticalError.Y;
                 }
-                // Error is 0 (no error) to +/- 2 (max error)
                 // scale it by VAservo
-                verterr = verterr * VAservo;
+                verticalError = verticalError * VAservo;
 
-                // As the body rotates around the X axis, then verterr.Y increases; Rotated around Y then .X increases, so
-                // Change  Body angular velocity  X based on Y, and Y based on X. Z is not changed.
-                vertattr.X =    verterr.Y;
-                vertattr.Y =  - verterr.X;
+                // As the body rotates around the X axis, then verticalError.Y increases; Rotated around Y
+                //     then .X increases, so change  Body angular velocity  X based on Y, and Y based on X.
+                //     Z is not changed.
+                vertattr.X =    verticalError.Y;
+                vertattr.Y =  - verticalError.X;
                 vertattr.Z = 0f;
 
                 // scaling appears better usingsquare-law
+                Vector3 angularVelocity = Prim.ForceRotationalVelocity;
                 float bounce = 1.0f - (m_verticalAttractionEfficiency * m_verticalAttractionEfficiency);
                 vertattr.X += bounce * angularVelocity.X;
                 vertattr.Y += bounce * angularVelocity.Y;
 
-                DetailLog("{0},MoveAngular,verticalAttraction,verterr={1},bounce={2},vertattr={3}", 
-                            m_prim.LocalID, verterr, bounce, vertattr);
+                VDetailLog("{0},MoveAngular,verticalAttraction,verticalError={1},bounce={2},vertattr={3}",
+                            Prim.LocalID, verticalError, bounce, vertattr);
+
+            }
+            #endregion // Vertical attactor
+
+            #region Deflection
+
+            //Forward is the prefered direction, but if the reference frame has changed, we need to take this into account as well
+            if (m_angularDeflectionEfficiency != 0)
+            {
+                Vector3 preferredAxisOfMotion =
+                    new Vector3((pTimestep * 10 * (m_angularDeflectionEfficiency / m_angularDeflectionTimescale)), 0, 0);
+                preferredAxisOfMotion *= Quaternion.Add(Prim.ForceOrientation, m_referenceFrame);
+
+                deflection = (preferredAxisOfMotion * (m_angularDeflectionEfficiency) / m_angularDeflectionTimescale) * pTimestep;
+
+                VDetailLog("{0},MoveAngular,Deflection,perfAxis={1},deflection={2}", 
+                                        Prim.LocalID, preferredAxisOfMotion, deflection);
+            }
+
+            #endregion
+
+            #region Banking
 
-            } // else vertical attractor is off
+            if (m_bankingEfficiency != 0)
+            {
+                Vector3 dir = Vector3.One * Prim.ForceOrientation;
+                float mult = (m_bankingMix*m_bankingMix)*-1*(m_bankingMix < 0 ? -1 : 1);
+                    //Changes which way it banks in and out of turns
 
-            // m_lastVertAttractor = vertattr;
+                //Use the square of the efficiency, as it looks much more how SL banking works
+                float effSquared = (m_bankingEfficiency*m_bankingEfficiency);
+                if (m_bankingEfficiency < 0)
+                    effSquared *= -1; //Keep the negative!
 
-            // Bank section tba
+                float mix = Math.Abs(m_bankingMix);
+                if (m_angularMotorVelocity.X == 0)
+                {
+                    /*if (!parent.Orientation.ApproxEquals(this.m_referenceFrame, 0.25f))
+                    {
+                        Vector3 axisAngle;
+                        float angle;
+                        parent.Orientation.GetAxisAngle(out axisAngle, out angle);
+                        Vector3 rotatedVel = parent.Velocity * parent.Orientation;
+                        if ((rotatedVel.X < 0 && axisAngle.Y > 0) || (rotatedVel.X > 0 && axisAngle.Y < 0))
+                            m_angularMotorVelocity.X += (effSquared * (mult * mix)) * (1f) * 10;
+                        else
+                            m_angularMotorVelocity.X += (effSquared * (mult * mix)) * (-1f) * 10;
+                    }*/
+                }
+                else
+                    banking.Z += (effSquared*(mult*mix))*(m_angularMotorVelocity.X) * 4;
+                if (!Prim.Linkset.LinksetIsColliding && Math.Abs(m_angularMotorVelocity.X) > mix)
+                    //If they are colliding, we probably shouldn't shove the prim around... probably
+                {
+                    float angVelZ = m_angularMotorVelocity.X*-1;
+                    /*if(angVelZ > mix)
+                        angVelZ = mix;
+                    else if(angVelZ < -mix)
+                        angVelZ = -mix;*/
+                    //This controls how fast and how far the banking occurs
+                    Vector3 bankingRot = new Vector3(angVelZ*(effSquared*mult), 0, 0);
+                    if (bankingRot.X > 3)
+                        bankingRot.X = 3;
+                    else if (bankingRot.X < -3)
+                        bankingRot.X = -3;
+                    bankingRot *= Prim.ForceOrientation;
+                    banking += bankingRot;
+                }
+                m_angularMotorVelocity.X *= m_bankingEfficiency == 1 ? 0.0f : 1 - m_bankingEfficiency;
+                VDetailLog("{0},MoveAngular,Banking,bEff={1},angMotVel={2},banking={3}", 
+                                Prim.LocalID, m_bankingEfficiency, m_angularMotorVelocity, banking);
+            }
+
+            #endregion
 
-            // Deflection section tba
+            m_lastVertAttractor = vertattr;
 
             // Sum velocities
-            m_lastAngularVelocity = m_angularMotorVelocity + vertattr; // + bank + deflection
-            
+            m_lastAngularVelocity = m_angularMotorVelocity + vertattr + banking + deflection;
+
             if ((m_flags & (VehicleFlag.NO_DEFLECTION_UP)) != 0)
             {
                 m_lastAngularVelocity.X = 0;
                 m_lastAngularVelocity.Y = 0;
-                DetailLog("{0},MoveAngular,noDeflectionUp,lastAngular={1}", m_prim.LocalID, m_lastAngularVelocity);
+                VDetailLog("{0},MoveAngular,noDeflectionUp,lastAngular={1}", Prim.LocalID, m_lastAngularVelocity);
             }
 
             if (m_lastAngularVelocity.ApproxEquals(Vector3.Zero, 0.01f))
             {
                 m_lastAngularVelocity = Vector3.Zero; // Reduce small value to zero.
-                DetailLog("{0},MoveAngular,zeroSmallValues,lastAngular={1}", m_prim.LocalID, m_lastAngularVelocity);
+                VDetailLog("{0},MoveAngular,zeroSmallValues,lastAngular={1}", Prim.LocalID, m_lastAngularVelocity);
             }
 
-             // apply friction
-            Vector3 decayamount = Vector3.One / (m_angularFrictionTimescale / pTimestep);
-            m_lastAngularVelocity -= m_lastAngularVelocity * decayamount;
-
             // Apply to the body
-            m_prim.RotationalVelocity = m_lastAngularVelocity;
+            // The above calculates the absolute angular velocity needed
+            // Prim.ForceRotationalVelocity = m_lastAngularVelocity;
 
-            DetailLog("{0},MoveAngular,done,decay={1},lastAngular={2}", m_prim.LocalID, decayamount, m_lastAngularVelocity);
+            // Apply a force to overcome current angular velocity
+            Vector3 applyAngularForce = (m_lastAngularVelocity - Prim.ForceRotationalVelocity) * Prim.Linkset.LinksetMass;
+            // Vector3 applyAngularForce = (m_lastAngularVelocity - Prim.ForceRotationalVelocity);
+            // Prim.AddAngularForce(applyAngularForce, false);
+            Prim.ApplyTorqueImpulse(applyAngularForce, false);
+
+             // Apply friction for next time
+            Vector3 decayamount = (Vector3.One / m_angularFrictionTimescale) * pTimestep;
+            m_lastAngularVelocity *= Vector3.One - decayamount;
+
+            VDetailLog("{0},MoveAngular,done,applyAForce={1},decay={2},lastAngular={3}", 
+                                Prim.LocalID, applyAngularForce, decayamount, m_lastAngularVelocity);
         } //end MoveAngular
 
         internal void LimitRotation(float timestep)
         {
-            Quaternion rotq = m_prim.Orientation;
+            Quaternion rotq = Prim.ForceOrientation;
             Quaternion m_rot = rotq;
-            bool changed = false;
             if (m_RollreferenceFrame != Quaternion.Identity)
             {
                 if (rotq.X >= m_RollreferenceFrame.X)
                 {
                     m_rot.X = rotq.X - (m_RollreferenceFrame.X / 2);
-                    changed = true;
                 }
                 if (rotq.Y >= m_RollreferenceFrame.Y)
                 {
                     m_rot.Y = rotq.Y - (m_RollreferenceFrame.Y / 2);
-                    changed = true;
                 }
                 if (rotq.X <= -m_RollreferenceFrame.X)
                 {
                     m_rot.X = rotq.X + (m_RollreferenceFrame.X / 2);
-                    changed = true;
                 }
                 if (rotq.Y <= -m_RollreferenceFrame.Y)
                 {
                     m_rot.Y = rotq.Y + (m_RollreferenceFrame.Y / 2);
-                    changed = true;
                 }
-                changed = true;
             }
             if ((m_flags & VehicleFlag.LOCK_ROTATION) != 0)
             {
                 m_rot.X = 0;
                 m_rot.Y = 0;
-                changed = true;
             }
-            if ((m_flags & VehicleFlag.LOCK_ROTATION) != 0)
+            if (rotq != m_rot)
             {
-                m_rot.X = 0;
-                m_rot.Y = 0;
-                changed = true;
+                Prim.ForceOrientation = m_rot;
+                VDetailLog("{0},LimitRotation,done,orig={1},new={2}", Prim.LocalID, rotq, m_rot);
             }
-            if (changed)
-                m_prim.Orientation = m_rot;
 
-            DetailLog("{0},LimitRotation,done,changed={1},orig={2},new={3}", m_prim.LocalID, changed, rotq, m_rot);
         }
 
         // Invoke the detailed logger and output something if it's enabled.
-        private void DetailLog(string msg, params Object[] args)
+        private void VDetailLog(string msg, params Object[] args)
         {
-            if (m_prim.Scene.VehicleLoggingEnabled)
-                m_prim.Scene.PhysicsLogging.Write(msg, args);
+            if (Prim.PhysicsScene.VehicleLoggingEnabled)
+                Prim.PhysicsScene.DetailLog(msg, args);
         }
     }
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs b/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs
index 087b9bb..3a92f93 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs
@@ -32,35 +32,78 @@ using OMV = OpenMetaverse;
 
 namespace OpenSim.Region.Physics.BulletSPlugin
 {
-public class BSLinkset
+public abstract class BSLinkset
 {
-    private static string LogHeader = "[BULLETSIM LINKSET]";
+    // private static string LogHeader = "[BULLETSIM LINKSET]";
 
-    private BSPrim m_linksetRoot;
-    public BSPrim LinksetRoot { get { return m_linksetRoot; } }
+    public enum LinksetImplementation
+    {
+        Constraint   = 0,   // linkset tied together with constraints
+        Compound     = 1,   // linkset tied together as a compound object
+        Manual       = 2    // linkset tied together manually (code moves all the pieces)
+    }
+    // Create the correct type of linkset for this child
+    public static BSLinkset Factory(BSScene physScene, BSPhysObject parent)
+    {
+        BSLinkset ret = null;
+
+        switch ((int)physScene.Params.linksetImplementation)
+        {
+            case (int)LinksetImplementation.Compound:
+                ret = new BSLinksetCompound(physScene, parent);
+                break;
+            case (int)LinksetImplementation.Manual:
+                // ret = new BSLinksetManual(physScene, parent);
+                break;
+            default:
+                ret = new BSLinksetConstraints(physScene, parent);
+                break;
+        }
+        return ret;
+    }
+
+    public BSPhysObject LinksetRoot { get; protected set; }
 
-    private BSScene m_physicsScene;
-    public BSScene PhysicsScene { get { return m_physicsScene; } }
+    public BSScene PhysicsScene { get; private set; }
 
-    // The children under the root in this linkset
-    private List<BSPrim> m_children;
+    static int m_nextLinksetID = 1;
+    public int LinksetID { get; private set; }
+
+    // The children under the root in this linkset.
+    protected HashSet<BSPhysObject> m_children;
 
     // We lock the diddling of linkset classes to prevent any badness.
     // This locks the modification of the instances of this class. Changes
     //    to the physical representation is done via the tainting mechenism.
-    private object m_linksetActivityLock = new Object();
+    protected object m_linksetActivityLock = new Object();
+
+    // Some linksets have a preferred physical shape.
+    // Returns SHAPE_UNKNOWN if there is no preference. Causes the correct shape to be selected.
+    public virtual ShapeData.PhysicsShapeType PreferredPhysicalShape(BSPhysObject requestor)
+    {
+        return ShapeData.PhysicsShapeType.SHAPE_UNKNOWN;
+    }
 
+    // Linksets move around the children so the linkset might need to compute the child position
+    public virtual OMV.Vector3 Position(BSPhysObject member)
+        { return member.RawPosition; }
+    public virtual OMV.Quaternion Orientation(BSPhysObject member)
+        { return member.RawOrientation; }
+    // TODO: does this need to be done for Velocity and RotationalVelocityy?
+    
     // We keep the prim's mass in the linkset structure since it could be dependent on other prims
-    private float m_mass;
-    public float LinksetMass 
-    { 
-        get 
+    protected float m_mass;
+    public float LinksetMass
+    {
+        get
         {
             m_mass = ComputeLinksetMass();
             return m_mass;
         }
     }
 
+    public virtual bool LinksetIsColliding { get { return false; } }
+
     public OMV.Vector3 CenterOfMass
     {
         get { return ComputeLinksetCenterOfMass(); }
@@ -71,23 +114,30 @@ public class BSLinkset
         get { return ComputeLinksetGeometricCenter(); }
     }
 
-    public BSLinkset(BSScene scene, BSPrim parent)
+    protected void Initialize(BSScene scene, BSPhysObject parent)
     {
         // A simple linkset of one (no children)
-        m_physicsScene = scene;
-        m_linksetRoot = parent;
-        m_children = new List<BSPrim>();
-        m_mass = parent.MassRaw;
+        LinksetID = m_nextLinksetID++;
+        // We create LOTS of linksets.
+        if (m_nextLinksetID <= 0)
+            m_nextLinksetID = 1;
+        PhysicsScene = scene;
+        LinksetRoot = parent;
+        m_children = new HashSet<BSPhysObject>();
+        m_mass = parent.RawMass;
     }
 
     // Link to a linkset where the child knows the parent.
     // Parent changing should not happen so do some sanity checking.
     // We return the parent's linkset so the child can track its membership.
-    public BSLinkset AddMeToLinkset(BSPrim child)
+    // Called at runtime.
+    public BSLinkset AddMeToLinkset(BSPhysObject child)
     {
         lock (m_linksetActivityLock)
         {
-            AddChildToLinkset(child);
+            // Don't add the root to its own linkset
+            if (!IsRoot(child))
+                AddChildToLinkset(child);
         }
         return this;
     }
@@ -95,36 +145,27 @@ public class BSLinkset
     // Remove a child from a linkset.
     // Returns a new linkset for the child which is a linkset of one (just the
     //    orphened child).
-    public BSLinkset RemoveMeFromLinkset(BSPrim child)
+    // Called at runtime.
+    public BSLinkset RemoveMeFromLinkset(BSPhysObject child)
     {
         lock (m_linksetActivityLock)
         {
             if (IsRoot(child))
             {
-                // if root of linkset, take the linkset apart
-                while (m_children.Count > 0)
-                {
-                    // Note that we don't do a foreach because the remove routine
-                    //    takes it out of the list.
-                    RemoveChildFromOtherLinkset(m_children[0]);
-                }
-                m_children.Clear(); // just to make sure
-            }
-            else
-            {
-                // Just removing a child from an existing linkset
-                RemoveChildFromLinkset(child);
+                // Cannot remove the root from a linkset.
+                return this;
             }
+            RemoveChildFromLinkset(child);
         }
 
         // The child is down to a linkset of just itself
-        return new BSLinkset(PhysicsScene, child);
+        return BSLinkset.Factory(PhysicsScene, child);
     }
 
     // Return 'true' if the passed object is the root object of this linkset
-    public bool IsRoot(BSPrim requestor)
+    public bool IsRoot(BSPhysObject requestor)
     {
-        return (requestor.LocalID == m_linksetRoot.LocalID);
+        return (requestor.LocalID == LinksetRoot.LocalID);
     }
 
     public int NumberOfChildren { get { return m_children.Count; } }
@@ -133,12 +174,14 @@ public class BSLinkset
     public bool HasAnyChildren { get { return (m_children.Count > 0); } }
 
     // Return 'true' if this child is in this linkset
-    public bool HasChild(BSPrim child)
+    public bool HasChild(BSPhysObject child)
     {
         bool ret = false;
         lock (m_linksetActivityLock)
         {
-            foreach (BSPrim bp in m_children)
+            ret = m_children.Contains(child);
+            /* Safer version but the above should work
+            foreach (BSPhysObject bp in m_children)
             {
                 if (child.LocalID == bp.LocalID)
                 {
@@ -146,274 +189,132 @@ public class BSLinkset
                     break;
                 }
             }
+             */
         }
         return ret;
     }
 
-    private float ComputeLinksetMass()
+    // Perform an action on each member of the linkset including root prim.
+    // Depends on the action on whether this should be done at taint time.
+    public delegate bool ForEachMemberAction(BSPhysObject obj);
+    public virtual bool ForEachMember(ForEachMemberAction action)
     {
-        float mass = m_linksetRoot.MassRaw;
-        foreach (BSPrim bp in m_children)
-        {
-            mass += bp.MassRaw;
-        }
-        return mass;
-    }
-
-    private OMV.Vector3 ComputeLinksetCenterOfMass()
-    {
-        OMV.Vector3 com = m_linksetRoot.Position * m_linksetRoot.MassRaw;
-        float totalMass = m_linksetRoot.MassRaw;
-
+        bool ret = false;
         lock (m_linksetActivityLock)
         {
-            foreach (BSPrim bp in m_children)
+            action(LinksetRoot);
+            foreach (BSPhysObject po in m_children)
             {
-                com += bp.Position * bp.MassRaw;
-                totalMass += bp.MassRaw;
+                if (action(po))
+                    break;
             }
-            if (totalMass != 0f)
-                com /= totalMass;
         }
-
-        return com;
+        return ret;
     }
 
-    private OMV.Vector3 ComputeLinksetGeometricCenter()
-    {
-        OMV.Vector3 com = m_linksetRoot.Position;
-
-        lock (m_linksetActivityLock)
-        {
-            foreach (BSPrim bp in m_children)
-            {
-                com += bp.Position * bp.MassRaw;
-            }
-            com /= (m_children.Count + 1);
-        }
+    // I am the root of a linkset and a new child is being added
+    // Called while LinkActivity is locked.
+    protected abstract void AddChildToLinkset(BSPhysObject child);
 
-        return com;
-    }
+    // I am the root of a linkset and one of my children is being removed.
+    // Safe to call even if the child is not really in my linkset.
+    protected abstract void RemoveChildFromLinkset(BSPhysObject child);
 
     // When physical properties are changed the linkset needs to recalculate
     //   its internal properties.
-    public void Refresh(BSPrim requestor)
+    // May be called at runtime or taint-time.
+    public abstract void Refresh(BSPhysObject requestor);
+
+    // The object is going dynamic (physical). Do any setup necessary
+    //     for a dynamic linkset.
+    // Only the state of the passed object can be modified. The rest of the linkset
+    //     has not yet been fully constructed.
+    // Return 'true' if any properties updated on the passed object.
+    // Called at taint-time!
+    public abstract bool MakeDynamic(BSPhysObject child);
+
+    // The object is going static (non-physical). Do any setup necessary
+    //     for a static linkset.
+    // Return 'true' if any properties updated on the passed object.
+    // Called at taint-time!
+    public abstract bool MakeStatic(BSPhysObject child);
+
+    // Called when a parameter update comes from the physics engine for any object
+    //      of the linkset is received.
+    // Called at taint-time!!
+    public abstract void UpdateProperties(BSPhysObject physObject);
+
+    // Routine used when rebuilding the body of the root of the linkset
+    // Destroy all the constraints have have been made to root.
+    // This is called when the root body is changing.
+    // Returns 'true' of something was actually removed and would need restoring
+    // Called at taint-time!!
+    public abstract bool RemoveBodyDependencies(BSPrim child);
+
+    // Companion to RemoveBodyDependencies(). If RemoveBodyDependencies() returns 'true',
+    //     this routine will restore the removed constraints.
+    // Called at taint-time!!
+    public abstract void RestoreBodyDependencies(BSPrim child);
+
+    // ================================================================
+    protected virtual float ComputeLinksetMass()
     {
-        // If there are no children, there aren't any constraints to recompute
-        if (!HasAnyChildren)
-            return;
-
-        // Only the root does the recomputation
-        if (IsRoot(requestor))
-        {
-            PhysicsScene.TaintedObject("BSLinkSet.Refresh", delegate()
-            {
-                RecomputeLinksetConstraintVariables();
-            });
-        }
-    }
-
-    // Call each of the constraints that make up this linkset and recompute the
-    //    various transforms and variables. Used when objects are added or removed
-    //    from a linkset to make sure the constraints know about the new mass and
-    //    geometry.
-    // Must only be called at taint time!!
-    private bool RecomputeLinksetConstraintVariables()
-    {
-        float linksetMass = LinksetMass;
-        lock (m_linksetActivityLock)
+        float mass = LinksetRoot.RawMass;
+        if (HasAnyChildren)
         {
-            foreach (BSPrim child in m_children)
+            lock (m_linksetActivityLock)
             {
-                BSConstraint constrain;
-                if (m_physicsScene.Constraints.TryGetConstraint(LinksetRoot.Body, child.Body, out constrain))
-                {
-                    // DetailLog("{0},BSLinkset.RecomputeLinksetConstraintVariables,taint,child={1},mass={2},A={3},B={4}", 
-                    //         LinksetRoot.LocalID, child.LocalID, linksetMass, constrain.Body1.ID, constrain.Body2.ID);
-                    constrain.RecomputeConstraintVariables(linksetMass);
-                }
-                else
+                foreach (BSPhysObject bp in m_children)
                 {
-                    // Non-fatal error that can happen when children are being added to the linkset but
-                    //    their constraints have not been created yet.
-                    // Caused by the fact that m_children is built at run time but building constraints
-                    //    happens at taint time.
-                    // m_physicsScene.Logger.ErrorFormat("[BULLETSIM LINKSET] RecomputeLinksetConstraintVariables: constraint not found for root={0}, child={1}",
-                    //                                 m_linksetRoot.Body.ID, child.Body.ID);
+                    mass += bp.RawMass;
                 }
             }
         }
-        return false;
+        return mass;
     }
 
-    // I am the root of a linkset and a new child is being added
-    // Called while LinkActivity is locked.
-    private void AddChildToLinkset(BSPrim child)
+    protected virtual OMV.Vector3 ComputeLinksetCenterOfMass()
     {
-        if (!HasChild(child))
+        OMV.Vector3 com;
+        lock (m_linksetActivityLock)
         {
-            m_children.Add(child);
+            com = LinksetRoot.Position * LinksetRoot.RawMass;
+            float totalMass = LinksetRoot.RawMass;
 
-            BSPrim rootx = LinksetRoot; // capture the root as of now
-            BSPrim childx = child;
-            m_physicsScene.TaintedObject("AddChildToLinkset", delegate()
+            foreach (BSPhysObject bp in m_children)
             {
-                // DebugLog("{0}: AddChildToLinkset: adding child {1} to {2}", LogHeader, child.LocalID, m_linksetRoot.LocalID);
-                // DetailLog("{0},AddChildToLinkset,taint,child={1}", m_linksetRoot.LocalID, child.LocalID);
-                PhysicallyLinkAChildToRoot(rootx, childx);     // build the physical binding between me and the child
-            });
+                com += bp.Position * bp.RawMass;
+                totalMass += bp.RawMass;
+            }
+            if (totalMass != 0f)
+                com /= totalMass;
         }
-        return;
-    }
 
-    // Forcefully removing a child from a linkset.
-    // This is not being called by the child so we have to make sure the child doesn't think
-    //    it's still connected to the linkset.
-    // Normal OpenSimulator operation will never do this because other SceneObjectPart information
-    //    has to be updated also (like pointer to prim's parent).
-    private void RemoveChildFromOtherLinkset(BSPrim pchild)
-    {
-        pchild.Linkset = new BSLinkset(m_physicsScene, pchild);
-        RemoveChildFromLinkset(pchild);
+        return com;
     }
 
-    // I am the root of a linkset and one of my children is being removed.
-    // Safe to call even if the child is not really in my linkset.
-    private void RemoveChildFromLinkset(BSPrim child)
+    protected virtual OMV.Vector3 ComputeLinksetGeometricCenter()
     {
-        if (m_children.Remove(child))
+        OMV.Vector3 com;
+        lock (m_linksetActivityLock)
         {
-            BSPrim rootx = LinksetRoot; // capture the root as of now
-            BSPrim childx = child;
-            m_physicsScene.TaintedObject("RemoveChildFromLinkset", delegate()
-            {
-                // DebugLog("{0}: RemoveChildFromLinkset: Removing constraint to {1}", LogHeader, child.LocalID);
-                // DetailLog("{0},RemoveChildFromLinkset,taint,child={1}", m_linksetRoot.LocalID, child.LocalID);
-
-                PhysicallyUnlinkAChildFromRoot(rootx, childx);
-            });
+            com = LinksetRoot.Position;
 
-            RecomputeLinksetConstraintVariables();
-        }
-        else
-        {
-            // This will happen if we remove the root of the linkset first. Non-fatal occurance.
-            // PhysicsScene.Logger.ErrorFormat("{0}: Asked to remove child from linkset that was not in linkset", LogHeader);
+            foreach (BSPhysObject bp in m_children)
+            {
+                com += bp.Position * bp.RawMass;
+            }
+            com /= (m_children.Count + 1);
         }
-        return;
-    }
-
-    // Create a constraint between me (root of linkset) and the passed prim (the child).
-    // Called at taint time!
-    private void PhysicallyLinkAChildToRoot(BSPrim rootPrim, BSPrim childPrim)
-    {
-        // Zero motion for children so they don't interpolate
-        childPrim.ZeroMotion();
-
-        // Relative position normalized to the root prim
-        // Essentually a vector pointing from center of rootPrim to center of childPrim
-        OMV.Vector3 childRelativePosition = childPrim.Position - rootPrim.Position;
-
-        // real world coordinate of midpoint between the two objects
-        OMV.Vector3 midPoint = rootPrim.Position + (childRelativePosition / 2);
-
-        // create a constraint that allows no freedom of movement between the two objects
-        // http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=4818
-        // DebugLog("{0}: CreateLinkset: Adding a constraint between root prim {1} and child prim {2}", LogHeader, LocalID, childPrim.LocalID);
-        DetailLog("{0},PhysicallyLinkAChildToRoot,taint,root={1},child={2},rLoc={3},cLoc={4},midLoc={5}", 
-            rootPrim.LocalID, rootPrim.LocalID, childPrim.LocalID, rootPrim.Position, childPrim.Position, midPoint);
-        BS6DofConstraint constrain = new BS6DofConstraint(
-                        m_physicsScene.World, rootPrim.Body, childPrim.Body,
-                        midPoint,
-                        true,
-                        true
-                        );
-        /* NOTE: attempt to build constraint with full frame computation, etc.
-         *     Using the midpoint is easier since it lets the Bullet code use the transforms
-         *     of the objects.
-         * Code left here as an example.
-        // ==================================================================================
-        // relative position normalized to the root prim
-        OMV.Quaternion invThisOrientation = OMV.Quaternion.Inverse(rootPrim.Orientation);
-        OMV.Vector3 childRelativePosition = (childPrim.Position - rootPrim.Position) * invThisOrientation;
-
-        // relative rotation of the child to the parent
-        OMV.Quaternion childRelativeRotation = invThisOrientation * childPrim.Orientation;
-        OMV.Quaternion inverseChildRelativeRotation = OMV.Quaternion.Inverse(childRelativeRotation);
-
-        // create a constraint that allows no freedom of movement between the two objects
-        // http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=4818
-        // DebugLog("{0}: CreateLinkset: Adding a constraint between root prim {1} and child prim {2}", LogHeader, LocalID, childPrim.LocalID);
-        DetailLog("{0},PhysicallyLinkAChildToRoot,taint,root={1},child={2}", rootPrim.LocalID, rootPrim.LocalID, childPrim.LocalID);
-        BS6DofConstraint constrain = new BS6DofConstraint(
-                        PhysicsScene.World, rootPrim.Body, childPrim.Body,
-                        OMV.Vector3.Zero,
-                        OMV.Quaternion.Inverse(rootPrim.Orientation),
-                        OMV.Vector3.Zero,
-                        OMV.Quaternion.Inverse(childPrim.Orientation),
-                        // A point half way between the parent and child
-                        // childRelativePosition/2,
-                        // childRelativeRotation,
-                        // childRelativePosition/2,
-                        // inverseChildRelativeRotation,
-                        true,
-                        true
-                        );
-        // ==================================================================================
-        */
-
-        m_physicsScene.Constraints.AddConstraint(constrain);
-
-        // zero linear and angular limits makes the objects unable to move in relation to each other
-        constrain.SetLinearLimits(OMV.Vector3.Zero, OMV.Vector3.Zero);
-        constrain.SetAngularLimits(OMV.Vector3.Zero, OMV.Vector3.Zero);
-
-        // tweek the constraint to increase stability
-        constrain.UseFrameOffset(PhysicsScene.BoolNumeric(PhysicsScene.Params.linkConstraintUseFrameOffset));
-        constrain.TranslationalLimitMotor(PhysicsScene.BoolNumeric(PhysicsScene.Params.linkConstraintEnableTransMotor),
-                        PhysicsScene.Params.linkConstraintTransMotorMaxVel,
-                        PhysicsScene.Params.linkConstraintTransMotorMaxForce);
-        constrain.SetCFMAndERP(PhysicsScene.Params.linkConstraintCFM, PhysicsScene.Params.linkConstraintERP);
-
-        RecomputeLinksetConstraintVariables();
-    }
 
-    // Remove linkage between myself and a particular child
-    // Called at taint time!
-    private void PhysicallyUnlinkAChildFromRoot(BSPrim rootPrim, BSPrim childPrim)
-    {
-        // DebugLog("{0}: PhysicallyUnlinkAChildFromRoot: RemoveConstraint between root prim {1} and child prim {2}", 
-        //             LogHeader, rootPrim.LocalID, childPrim.LocalID);
-        DetailLog("{0},PhysicallyUnlinkAChildFromRoot,taint,root={1},child={2}", rootPrim.LocalID, rootPrim.LocalID, childPrim.LocalID);
-
-        // Find the constraint for this link and get rid of it from the overall collection and from my list
-        m_physicsScene.Constraints.RemoveAndDestroyConstraint(rootPrim.Body, childPrim.Body);
-
-        // Make the child refresh its location
-        BulletSimAPI.PushUpdate2(childPrim.Body.Ptr);
-    }
-
-    // Remove linkage between myself and any possible children I might have
-    // Called at taint time!
-    private void PhysicallyUnlinkAllChildrenFromRoot(BSPrim rootPrim)
-    {
-        // DebugLog("{0}: PhysicallyUnlinkAllChildren:", LogHeader);
-        DetailLog("{0},PhysicallyUnlinkAllChildren,taint", rootPrim.LocalID);
-
-        m_physicsScene.Constraints.RemoveAndDestroyConstraint(rootPrim.Body);
-    }
-
-    // Invoke the detailed logger and output something if it's enabled.
-    private void DebugLog(string msg, params Object[] args)
-    {
-        if (m_physicsScene.ShouldDebugLog)
-            m_physicsScene.Logger.DebugFormat(msg, args);
+        return com;
     }
 
     // Invoke the detailed logger and output something if it's enabled.
-    private void DetailLog(string msg, params Object[] args)
+    protected void DetailLog(string msg, params Object[] args)
     {
-        m_physicsScene.PhysicsLogging.Write(msg, args);
+        if (PhysicsScene.PhysicsLogging.Enabled)
+            PhysicsScene.DetailLog(msg, args);
     }
 
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSLinksetCompound.cs b/OpenSim/Region/Physics/BulletSPlugin/BSLinksetCompound.cs
new file mode 100755
index 0000000..12c6d7a
--- /dev/null
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSLinksetCompound.cs
@@ -0,0 +1,273 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyrightD
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+using OMV = OpenMetaverse;
+
+namespace OpenSim.Region.Physics.BulletSPlugin
+{
+public sealed class BSLinksetCompound : BSLinkset
+{
+    private static string LogHeader = "[BULLETSIM LINKSET COMPOUND]";
+
+    public BSLinksetCompound(BSScene scene, BSPhysObject parent)
+    {
+        base.Initialize(scene, parent);
+    }
+
+    // For compound implimented linksets, if there are children, use compound shape for the root.
+    public override ShapeData.PhysicsShapeType PreferredPhysicalShape(BSPhysObject requestor)
+    { 
+        ShapeData.PhysicsShapeType ret = ShapeData.PhysicsShapeType.SHAPE_UNKNOWN;
+        if (IsRoot(requestor) && HasAnyChildren)
+        {
+            ret = ShapeData.PhysicsShapeType.SHAPE_COMPOUND;
+        }
+        // DetailLog("{0},BSLinksetCompound.PreferredPhysicalShape,call,shape={1}", LinksetRoot.LocalID, ret);
+        return ret;
+    }
+
+    // When physical properties are changed the linkset needs to recalculate
+    //   its internal properties.
+    // This is queued in the 'post taint' queue so the
+    //   refresh will happen once after all the other taints are applied.
+    public override void Refresh(BSPhysObject requestor)
+    {
+        // External request for Refresh (from BSPrim) is not necessary
+        // InternalRefresh(requestor);
+    }
+
+    private void InternalRefresh(BSPhysObject requestor)
+    {
+        DetailLog("{0},BSLinksetCompound.Refresh,schedulingRefresh,requestor={1}", LinksetRoot.LocalID, requestor.LocalID);
+        // Queue to happen after all the other taint processing
+        PhysicsScene.PostTaintObject("BSLinksetCompound.Refresh", requestor.LocalID, delegate()
+        {
+            if (IsRoot(requestor) && HasAnyChildren)
+                RecomputeLinksetCompound();
+        });
+    }
+
+    // The object is going dynamic (physical). Do any setup necessary
+    //     for a dynamic linkset.
+    // Only the state of the passed object can be modified. The rest of the linkset
+    //     has not yet been fully constructed.
+    // Return 'true' if any properties updated on the passed object.
+    // Called at taint-time!
+    public override bool MakeDynamic(BSPhysObject child)
+    {
+        bool ret = false;
+        DetailLog("{0},BSLinksetCompound.MakeDynamic,call,IsRoot={1}", child.LocalID, IsRoot(child));
+        if (!IsRoot(child))
+        {
+            // Physical children are removed from the world as the shape ofthe root compound
+            //     shape takes over.
+            BulletSimAPI.AddToCollisionFlags2(child.PhysBody.ptr, CollisionFlags.CF_NO_CONTACT_RESPONSE);
+            BulletSimAPI.ForceActivationState2(child.PhysBody.ptr, ActivationState.DISABLE_SIMULATION);
+            ret = true;
+        }
+        return ret;
+    }
+
+    // The object is going static (non-physical). Do any setup necessary for a static linkset.
+    // Return 'true' if any properties updated on the passed object.
+    // This doesn't normally happen -- OpenSim removes the objects from the physical
+    //     world if it is a static linkset.
+    // Called at taint-time!
+    public override bool MakeStatic(BSPhysObject child)
+    {
+        bool ret = false;
+        DetailLog("{0},BSLinksetCompound.MakeStatic,call,IsRoot={1}", child.LocalID, IsRoot(child));
+        if (!IsRoot(child))
+        {
+            // The non-physical children can come back to life.
+            BulletSimAPI.RemoveFromCollisionFlags2(child.PhysBody.ptr, CollisionFlags.CF_NO_CONTACT_RESPONSE);
+            // Don't force activation so setting of DISABLE_SIMULATION can stay.
+            BulletSimAPI.Activate2(child.PhysBody.ptr, false);
+            ret = true;
+        }
+        return ret;
+    }
+
+    // Called at taint-time!!
+    public override void UpdateProperties(BSPhysObject updated)
+    {
+        // Nothing to do for constraints on property updates
+    }
+
+    // The children move around in relationship to the root.
+    // Just grab the current values of wherever it is right now.
+    public override OMV.Vector3 Position(BSPhysObject member)
+    {
+        return BulletSimAPI.GetPosition2(member.PhysBody.ptr);
+    }
+
+    public override OMV.Quaternion Orientation(BSPhysObject member)
+    {
+        return BulletSimAPI.GetOrientation2(member.PhysBody.ptr);
+    }
+
+    // Routine called when rebuilding the body of some member of the linkset.
+    // Since we don't keep in world relationships, do nothing unless it's a child changing.
+    // Returns 'true' of something was actually removed and would need restoring
+    // Called at taint-time!!
+    public override bool RemoveBodyDependencies(BSPrim child)
+    {
+        bool ret = false;
+
+        DetailLog("{0},BSLinksetCompound.RemoveBodyDependencies,refreshIfChild,rID={1},rBody={2},isRoot={3}",
+                        child.LocalID, LinksetRoot.LocalID, LinksetRoot.PhysBody.ptr.ToString("X"), IsRoot(child));
+
+        if (!IsRoot(child))
+        {
+            // Cause the current shape to be freed and the new one to be built.
+            InternalRefresh(LinksetRoot);
+            ret = true;
+        }
+
+        return ret;
+    }
+
+    // Companion to RemoveBodyDependencies(). If RemoveBodyDependencies() returns 'true',
+    // this routine will restore the removed constraints.
+    // Called at taint-time!!
+    public override void RestoreBodyDependencies(BSPrim child)
+    {
+        // The Refresh operation queued by RemoveBodyDependencies() will build any missing constraints.
+    }
+
+    // ================================================================
+
+    // Add a new child to the linkset.
+    // Called while LinkActivity is locked.
+    protected override void AddChildToLinkset(BSPhysObject child)
+    {
+        if (!HasChild(child))
+        {
+            m_children.Add(child);
+
+            DetailLog("{0},BSLinksetCompound.AddChildToLinkset,call,child={1}", LinksetRoot.LocalID, child.LocalID);
+
+            // Cause constraints and assorted properties to be recomputed before the next simulation step.
+            InternalRefresh(LinksetRoot);
+        }
+        return;
+    }
+
+    // Remove the specified child from the linkset.
+    // Safe to call even if the child is not really in my linkset.
+    protected override void RemoveChildFromLinkset(BSPhysObject child)
+    {
+        if (m_children.Remove(child))
+        {
+            DetailLog("{0},BSLinksetCompound.RemoveChildFromLinkset,call,rID={1},rBody={2},cID={3},cBody={4}",
+                            child.LocalID,
+                            LinksetRoot.LocalID, LinksetRoot.PhysBody.ptr.ToString("X"),
+                            child.LocalID, child.PhysBody.ptr.ToString("X"));
+
+            // Cause the child's body to be rebuilt and thus restored to normal operation
+            child.ForceBodyShapeRebuild(false);
+
+            if (!HasAnyChildren)
+            {
+                // The linkset is now empty. The root needs rebuilding.
+                LinksetRoot.ForceBodyShapeRebuild(false);
+            }
+            else
+            {
+                // Schedule a rebuild of the linkset  before the next simulation tick.
+                InternalRefresh(LinksetRoot);
+            }
+        }
+        return;
+    }
+
+    // Called before the simulation step to make sure the compound based linkset
+    //    is all initialized.
+    // Constraint linksets are rebuilt every time.
+    // Note that this works for rebuilding just the root after a linkset is taken apart.
+    // Called at taint time!!
+    private void RecomputeLinksetCompound()
+    {
+        // Cause the root shape to be rebuilt as a compound object with just the root in it
+        LinksetRoot.ForceBodyShapeRebuild(true);
+
+        DetailLog("{0},BSLinksetCompound.RecomputeLinksetCompound,start,rBody={1},rShape={2},numChildren={3}",
+                        LinksetRoot.LocalID, LinksetRoot.PhysBody, LinksetRoot.PhysShape, NumberOfChildren);
+
+        // Add a shape for each of the other children in the linkset
+        ForEachMember(delegate(BSPhysObject cPrim)
+        {
+            if (!IsRoot(cPrim))
+            {
+                // Each child position and rotation is given relative to the root.
+                OMV.Quaternion invRootOrientation = OMV.Quaternion.Inverse(LinksetRoot.RawOrientation);
+                OMV.Vector3 displacementPos = (cPrim.RawPosition - LinksetRoot.RawPosition) * invRootOrientation;
+                OMV.Quaternion displacementRot = cPrim.RawOrientation * invRootOrientation;
+
+                DetailLog("{0},BSLinksetCompound.RecomputeLinksetCompound,addMemberToShape,mID={1},mShape={2},dispPos={3},dispRot={4}",
+                    LinksetRoot.LocalID, cPrim.LocalID, cPrim.PhysShape, displacementPos, displacementRot);
+
+                if (cPrim.PhysShape.isNativeShape)
+                {
+                    // Native shapes are not shared so we need to create a new one.
+                    // A mesh or hull is created because scale is not available on a native shape.
+                    //     (TODO: Bullet does have a btScaledCollisionShape. Can that be used?)
+                    BulletShape saveShape = cPrim.PhysShape;
+                    cPrim.PhysShape.ptr = IntPtr.Zero;  // Don't let the create free the child's shape
+                    PhysicsScene.Shapes.CreateGeomMeshOrHull(cPrim, null);
+                    BulletShape newShape = cPrim.PhysShape;
+                    cPrim.PhysShape = saveShape;
+                    BulletSimAPI.AddChildShapeToCompoundShape2(LinksetRoot.PhysShape.ptr, newShape.ptr, displacementPos, displacementRot);
+                }
+                else
+                {
+                    // For the shared shapes (meshes and hulls), just use the shape in the child.
+                    if (PhysicsScene.Shapes.ReferenceShape(cPrim.PhysShape))
+                    {
+                        PhysicsScene.Logger.ErrorFormat("{0} Rebuilt sharable shape when building linkset! Region={1}, primID={2}, shape={3}",
+                                            LogHeader, PhysicsScene.RegionName, cPrim.LocalID, cPrim.PhysShape);
+                    }
+                    BulletSimAPI.AddChildShapeToCompoundShape2(LinksetRoot.PhysShape.ptr, cPrim.PhysShape.ptr, displacementPos, displacementRot);
+                }
+            }
+            return false;   // 'false' says to move onto the next child in the list
+        });
+
+        // With all of the linkset packed into the root prim, it has the mass of everyone.
+        float linksetMass = LinksetMass;
+        LinksetRoot.UpdatePhysicalMassProperties(linksetMass);
+
+        // DEBUG: see of inter-linkset collisions are causing problems for constraint linksets.
+        // BulletSimAPI.SetCollisionFilterMask2(LinksetRoot.BSBody.ptr, 
+        //                     (uint)CollisionFilterGroups.LinksetFilter, (uint)CollisionFilterGroups.LinksetMask);
+
+    }
+}
+}
\ No newline at end of file
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSLinksetConstraints.cs b/OpenSim/Region/Physics/BulletSPlugin/BSLinksetConstraints.cs
new file mode 100755
index 0000000..d2387fb
--- /dev/null
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSLinksetConstraints.cs
@@ -0,0 +1,327 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyrightD
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+using OMV = OpenMetaverse;
+
+namespace OpenSim.Region.Physics.BulletSPlugin
+{
+public sealed class BSLinksetConstraints : BSLinkset
+{
+    // private static string LogHeader = "[BULLETSIM LINKSET CONSTRAINTS]";
+
+    public BSLinksetConstraints(BSScene scene, BSPhysObject parent)
+    {
+        base.Initialize(scene, parent);
+    }
+
+    // When physical properties are changed the linkset needs to recalculate
+    //   its internal properties.
+    // This is queued in the 'post taint' queue so the
+    //   refresh will happen once after all the other taints are applied.
+    public override void Refresh(BSPhysObject requestor)
+    {
+        // Queue to happen after all the other taint processing
+        PhysicsScene.PostTaintObject("BSLinksetContraints.Refresh", requestor.LocalID, delegate()
+            {
+                if (HasAnyChildren && IsRoot(requestor))
+                    RecomputeLinksetConstraints();
+            });
+    }
+
+    // The object is going dynamic (physical). Do any setup necessary
+    //     for a dynamic linkset.
+    // Only the state of the passed object can be modified. The rest of the linkset
+    //     has not yet been fully constructed.
+    // Return 'true' if any properties updated on the passed object.
+    // Called at taint-time!
+    public override bool MakeDynamic(BSPhysObject child)
+    {
+        // What is done for each object in BSPrim is what we want.
+        return false;
+    }
+
+    // The object is going static (non-physical). Do any setup necessary for a static linkset.
+    // Return 'true' if any properties updated on the passed object.
+    // This doesn't normally happen -- OpenSim removes the objects from the physical
+    //     world if it is a static linkset.
+    // Called at taint-time!
+    public override bool MakeStatic(BSPhysObject child)
+    {
+        // What is done for each object in BSPrim is what we want.
+        return false;
+    }
+
+    // Called at taint-time!!
+    public override void UpdateProperties(BSPhysObject updated)
+    {
+        // Nothing to do for constraints on property updates
+    }
+
+    // The children of the linkset are moved around by the constraints.
+    // Just grab the current values of wherever it is right now.
+    public override OMV.Vector3 Position(BSPhysObject member)
+    {
+        return BulletSimAPI.GetPosition2(member.PhysBody.ptr);
+    }
+
+    public override OMV.Quaternion Orientation(BSPhysObject member)
+    {
+        return BulletSimAPI.GetOrientation2(member.PhysBody.ptr);
+    }
+
+    // Routine called when rebuilding the body of some member of the linkset.
+    // Destroy all the constraints have have been made to root and set
+    //     up to rebuild the constraints before the next simulation step.
+    // Returns 'true' of something was actually removed and would need restoring
+    // Called at taint-time!!
+    public override bool RemoveBodyDependencies(BSPrim child)
+    {
+        bool ret = false;
+
+        DetailLog("{0},BSLinksetConstraint.RemoveBodyDependencies,removeChildrenForRoot,rID={1},rBody={2}",
+                                    child.LocalID, LinksetRoot.LocalID, LinksetRoot.PhysBody.ptr.ToString("X"));
+
+        lock (m_linksetActivityLock)
+        {
+            // Just undo all the constraints for this linkset. Rebuild at the end of the step.
+            ret = PhysicallyUnlinkAllChildrenFromRoot(LinksetRoot);
+            // Cause the constraints, et al to be rebuilt before the next simulation step.
+            Refresh(LinksetRoot);
+        }
+        return ret;
+    }
+
+    // Companion to RemoveBodyDependencies(). If RemoveBodyDependencies() returns 'true',
+    // this routine will restore the removed constraints.
+    // Called at taint-time!!
+    public override void RestoreBodyDependencies(BSPrim child)
+    {
+        // The Refresh operation queued by RemoveBodyDependencies() will build any missing constraints.
+    }
+
+    // ================================================================
+
+    // Add a new child to the linkset.
+    // Called while LinkActivity is locked.
+    protected override void AddChildToLinkset(BSPhysObject child)
+    {
+        if (!HasChild(child))
+        {
+            m_children.Add(child);
+
+            DetailLog("{0},BSLinksetConstraints.AddChildToLinkset,call,child={1}", LinksetRoot.LocalID, child.LocalID);
+
+            // Cause constraints and assorted properties to be recomputed before the next simulation step.
+            Refresh(LinksetRoot);
+        }
+        return;
+    }
+
+    // Remove the specified child from the linkset.
+    // Safe to call even if the child is not really in my linkset.
+    protected override void RemoveChildFromLinkset(BSPhysObject child)
+    {
+        if (m_children.Remove(child))
+        {
+            BSPhysObject rootx = LinksetRoot; // capture the root and body as of now
+            BSPhysObject childx = child;
+
+            DetailLog("{0},BSLinksetConstraints.RemoveChildFromLinkset,call,rID={1},rBody={2},cID={3},cBody={4}",
+                            childx.LocalID,
+                            rootx.LocalID, rootx.PhysBody.ptr.ToString("X"),
+                            childx.LocalID, childx.PhysBody.ptr.ToString("X"));
+
+            PhysicsScene.TaintedObject("BSLinksetConstraints.RemoveChildFromLinkset", delegate()
+            {
+                PhysicallyUnlinkAChildFromRoot(rootx, childx);
+            });
+            // See that the linkset parameters are recomputed at the end of the taint time.
+            Refresh(LinksetRoot);
+        }
+        else
+        {
+            // Non-fatal occurance.
+            // PhysicsScene.Logger.ErrorFormat("{0}: Asked to remove child from linkset that was not in linkset", LogHeader);
+        }
+        return;
+    }
+
+    // Create a constraint between me (root of linkset) and the passed prim (the child).
+    // Called at taint time!
+    private void PhysicallyLinkAChildToRoot(BSPhysObject rootPrim, BSPhysObject childPrim)
+    {
+        // Don't build the constraint when asked. Put it off until just before the simulation step.
+        Refresh(rootPrim);
+    }
+
+    private BSConstraint BuildConstraint(BSPhysObject rootPrim, BSPhysObject childPrim)
+    {
+        // Zero motion for children so they don't interpolate
+        childPrim.ZeroMotion();
+
+        // Relative position normalized to the root prim
+        // Essentually a vector pointing from center of rootPrim to center of childPrim
+        OMV.Vector3 childRelativePosition = childPrim.Position - rootPrim.Position;
+
+        // real world coordinate of midpoint between the two objects
+        OMV.Vector3 midPoint = rootPrim.Position + (childRelativePosition / 2);
+
+        DetailLog("{0},BSLinksetConstraint.BuildConstraint,taint,root={1},rBody={2},child={3},cBody={4},rLoc={5},cLoc={6},midLoc={7}",
+                                        rootPrim.LocalID,
+                                        rootPrim.LocalID, rootPrim.PhysBody.ptr.ToString("X"),
+                                        childPrim.LocalID, childPrim.PhysBody.ptr.ToString("X"),
+                                        rootPrim.Position, childPrim.Position, midPoint);
+
+        // create a constraint that allows no freedom of movement between the two objects
+        // http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=4818
+
+        BSConstraint6Dof constrain = new BSConstraint6Dof(
+                            PhysicsScene.World, rootPrim.PhysBody, childPrim.PhysBody, midPoint, true, true );
+                            // PhysicsScene.World, childPrim.BSBody, rootPrim.BSBody, midPoint, true, true );
+
+        /* NOTE: below is an attempt to build constraint with full frame computation, etc.
+         *     Using the midpoint is easier since it lets the Bullet code manipulate the transforms
+         *     of the objects.
+         * Code left for future programmers.
+        // ==================================================================================
+        // relative position normalized to the root prim
+        OMV.Quaternion invThisOrientation = OMV.Quaternion.Inverse(rootPrim.Orientation);
+        OMV.Vector3 childRelativePosition = (childPrim.Position - rootPrim.Position) * invThisOrientation;
+
+        // relative rotation of the child to the parent
+        OMV.Quaternion childRelativeRotation = invThisOrientation * childPrim.Orientation;
+        OMV.Quaternion inverseChildRelativeRotation = OMV.Quaternion.Inverse(childRelativeRotation);
+
+        DetailLog("{0},BSLinksetConstraint.PhysicallyLinkAChildToRoot,taint,root={1},child={2}", rootPrim.LocalID, rootPrim.LocalID, childPrim.LocalID);
+        BS6DofConstraint constrain = new BS6DofConstraint(
+                        PhysicsScene.World, rootPrim.Body, childPrim.Body,
+                        OMV.Vector3.Zero,
+                        OMV.Quaternion.Inverse(rootPrim.Orientation),
+                        OMV.Vector3.Zero,
+                        OMV.Quaternion.Inverse(childPrim.Orientation),
+                        true,
+                        true
+                        );
+        // ==================================================================================
+        */
+
+        PhysicsScene.Constraints.AddConstraint(constrain);
+
+        // zero linear and angular limits makes the objects unable to move in relation to each other
+        constrain.SetLinearLimits(OMV.Vector3.Zero, OMV.Vector3.Zero);
+        constrain.SetAngularLimits(OMV.Vector3.Zero, OMV.Vector3.Zero);
+
+        // tweek the constraint to increase stability
+        constrain.UseFrameOffset(PhysicsScene.BoolNumeric(PhysicsScene.Params.linkConstraintUseFrameOffset));
+        constrain.TranslationalLimitMotor(PhysicsScene.BoolNumeric(PhysicsScene.Params.linkConstraintEnableTransMotor),
+                        PhysicsScene.Params.linkConstraintTransMotorMaxVel,
+                        PhysicsScene.Params.linkConstraintTransMotorMaxForce);
+        constrain.SetCFMAndERP(PhysicsScene.Params.linkConstraintCFM, PhysicsScene.Params.linkConstraintERP);
+        if (PhysicsScene.Params.linkConstraintSolverIterations != 0f)
+        {
+            constrain.SetSolverIterations(PhysicsScene.Params.linkConstraintSolverIterations);
+        }
+        return constrain;
+    }
+
+    // Remove linkage between the linkset root and a particular child
+    // The root and child bodies are passed in because we need to remove the constraint between
+    //      the bodies that were present at unlink time.
+    // Called at taint time!
+    private bool PhysicallyUnlinkAChildFromRoot(BSPhysObject rootPrim, BSPhysObject childPrim)
+    {
+        bool ret = false;
+        DetailLog("{0},BSLinksetConstraint.PhysicallyUnlinkAChildFromRoot,taint,root={1},rBody={2},child={3},cBody={4}",
+                            rootPrim.LocalID,
+                            rootPrim.LocalID, rootPrim.PhysBody.ptr.ToString("X"),
+                            childPrim.LocalID, childPrim.PhysBody.ptr.ToString("X"));
+
+        // Find the constraint for this link and get rid of it from the overall collection and from my list
+        if (PhysicsScene.Constraints.RemoveAndDestroyConstraint(rootPrim.PhysBody, childPrim.PhysBody))
+        {
+            // Make the child refresh its location
+            BulletSimAPI.PushUpdate2(childPrim.PhysBody.ptr);
+            ret = true;
+        }
+
+        return ret;
+    }
+
+    // Remove linkage between myself and any possible children I might have.
+    // Returns 'true' of any constraints were destroyed.
+    // Called at taint time!
+    private bool PhysicallyUnlinkAllChildrenFromRoot(BSPhysObject rootPrim)
+    {
+        DetailLog("{0},BSLinksetConstraint.PhysicallyUnlinkAllChildren,taint", rootPrim.LocalID);
+
+        return PhysicsScene.Constraints.RemoveAndDestroyConstraint(rootPrim.PhysBody);
+    }
+
+    // Call each of the constraints that make up this linkset and recompute the
+    //    various transforms and variables. Create constraints of not created yet.
+    // Called before the simulation step to make sure the constraint based linkset
+    //    is all initialized.
+    // Called at taint time!!
+    private void RecomputeLinksetConstraints()
+    {
+        float linksetMass = LinksetMass;
+        LinksetRoot.UpdatePhysicalMassProperties(linksetMass);
+
+        // DEBUG: see of inter-linkset collisions are causing problems
+        // BulletSimAPI.SetCollisionFilterMask2(LinksetRoot.BSBody.ptr, 
+        //                     (uint)CollisionFilterGroups.LinksetFilter, (uint)CollisionFilterGroups.LinksetMask);
+        DetailLog("{0},BSLinksetConstraint.RecomputeLinksetConstraints,set,rBody={1},linksetMass={2}",
+                            LinksetRoot.LocalID, LinksetRoot.PhysBody.ptr.ToString("X"), linksetMass);
+
+        foreach (BSPhysObject child in m_children)
+        {
+            // A child in the linkset physically shows the mass of the whole linkset.
+            // This allows Bullet to apply enough force on the child to move the whole linkset.
+            // (Also do the mass stuff before recomputing the constraint so mass is not zero.)
+            child.UpdatePhysicalMassProperties(linksetMass);
+
+            BSConstraint constrain;
+            if (!PhysicsScene.Constraints.TryGetConstraint(LinksetRoot.PhysBody, child.PhysBody, out constrain))
+            {
+                // If constraint doesn't exist yet, create it.
+                constrain = BuildConstraint(LinksetRoot, child);
+            }
+            constrain.RecomputeConstraintVariables(linksetMass);
+
+            // DEBUG: see of inter-linkset collisions are causing problems
+            // BulletSimAPI.SetCollisionFilterMask2(child.BSBody.ptr, 
+            //                 (uint)CollisionFilterGroups.LinksetFilter, (uint)CollisionFilterGroups.LinksetMask);
+
+            // BulletSimAPI.DumpConstraint2(PhysicsScene.World.ptr, constrain.Constraint.ptr);    // DEBUG DEBUG
+        }
+
+    }
+}
+}
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
new file mode 100755
index 0000000..7127aaf
--- /dev/null
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
@@ -0,0 +1,248 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyrightD
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+using OMV = OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Region.Physics.Manager;
+
+namespace OpenSim.Region.Physics.BulletSPlugin
+{
+// Class to wrap all objects.
+// The rest of BulletSim doesn't need to keep checking for avatars or prims
+// unless the difference is significant.
+public abstract class BSPhysObject : PhysicsActor
+{
+    protected void BaseInitialize(BSScene parentScene, uint localID, string name, string typeName)
+    {
+        PhysicsScene = parentScene;
+        LocalID = localID;
+        PhysObjectName = name;
+        TypeName = typeName;
+
+        Linkset = BSLinkset.Factory(PhysicsScene, this);
+        LastAssetBuildFailed = false;
+
+        CollisionCollection = new CollisionEventUpdate();
+        SubscribedEventsMs = 0;
+        CollidingStep = 0;
+        CollidingGroundStep = 0;
+    }
+
+    public BSScene PhysicsScene { get; protected set; }
+    // public override uint LocalID { get; set; } // Use the LocalID definition in PhysicsActor
+    public string PhysObjectName { get; protected set; }
+    public string TypeName { get; protected set; }
+
+    public BSLinkset Linkset { get; set; }
+
+    // Return the object mass without calculating it or having side effects
+    public abstract float RawMass { get; }
+    // Set the raw mass but also update physical mass properties (inertia, ...)
+    public abstract void UpdatePhysicalMassProperties(float mass);
+
+    // Reference to the physical body (btCollisionObject) of this object
+    public BulletBody PhysBody;
+    // Reference to the physical shape (btCollisionShape) of this object
+    public BulletShape PhysShape;
+
+    // 'true' if the mesh's underlying asset failed to build.
+    // This will keep us from looping after the first time the build failed.
+    public bool LastAssetBuildFailed { get; set; }
+
+    // The objects base shape information. Null if not a prim type shape.
+    public PrimitiveBaseShape BaseShape { get; protected set; }
+    // Some types of objects have preferred physical representations.
+    // Returns SHAPE_UNKNOWN if there is no preference.
+    public virtual ShapeData.PhysicsShapeType PreferredPhysicalShape
+    {
+        get { return ShapeData.PhysicsShapeType.SHAPE_UNKNOWN; }
+    }
+
+    // When the physical properties are updated, an EntityProperty holds the update values.
+    // Keep the current and last EntityProperties to enable computation of differences
+    //      between the current update and the previous values.
+    public EntityProperties CurrentEntityProperties { get; set; }
+    public EntityProperties LastEntityProperties { get; set; }
+
+    public abstract OMV.Vector3 Scale { get; set; }
+    public abstract bool IsSolid { get; }
+    public abstract bool IsStatic { get; }
+
+    // Stop all physical motion.
+    public abstract void ZeroMotion();
+
+    // Step the vehicle simulation for this object. A NOOP if the vehicle was not configured.
+    public virtual void StepVehicle(float timeStep) { }
+
+    // Update the physical location and motion of the object. Called with data from Bullet.
+    public abstract void UpdateProperties(EntityProperties entprop);
+
+    // Tell the object to clean up.
+    public abstract void Destroy();
+
+    public abstract OMV.Vector3 RawPosition { get; set; }
+    public abstract OMV.Vector3 ForcePosition { get; set; }
+
+    public abstract OMV.Quaternion RawOrientation { get; set; }
+    public abstract OMV.Quaternion ForceOrientation { get; set; }
+
+    public abstract OMV.Vector3 ForceVelocity { get; set; }
+
+    public abstract OMV.Vector3 ForceRotationalVelocity { get; set; }
+
+    public abstract float ForceBuoyancy { get; set; }
+
+    public virtual bool ForceBodyShapeRebuild(bool inTaintTime) { return false; }
+
+    #region Collisions
+
+    // Requested number of milliseconds between collision events. Zero means disabled.
+    protected int SubscribedEventsMs { get; set; }
+    // Given subscription, the time that a collision may be passed up
+    protected int NextCollisionOkTime { get; set; }
+    // The simulation step that last had a collision
+    protected long CollidingStep { get; set; }
+    // The simulation step that last had a collision with the ground
+    protected long CollidingGroundStep { get; set; }
+    // The collision flags we think are set in Bullet
+    protected CollisionFlags CurrentCollisionFlags { get; set; }
+
+    // The collisions that have been collected this tick
+    protected CollisionEventUpdate CollisionCollection;
+
+    // The simulation step is telling this object about a collision.
+    // Return 'true' if a collision was processed and should be sent up.
+    // Called at taint time from within the Step() function
+    public virtual bool Collide(uint collidingWith, BSPhysObject collidee,
+                    OMV.Vector3 contactPoint, OMV.Vector3 contactNormal, float pentrationDepth)
+    {
+        bool ret = false;
+
+        // The following lines make IsColliding() and IsCollidingGround() work
+        CollidingStep = PhysicsScene.SimulationStep;
+        if (collidingWith <= PhysicsScene.TerrainManager.HighestTerrainID)
+        {
+            CollidingGroundStep = PhysicsScene.SimulationStep;
+        }
+
+        // prims in the same linkset cannot collide with each other
+        if (collidee != null && (this.Linkset.LinksetID == collidee.Linkset.LinksetID))
+        {
+            return ret;
+        }
+
+        // if someone has subscribed for collision events....
+        if (SubscribedEvents()) {
+            CollisionCollection.AddCollider(collidingWith, new ContactPoint(contactPoint, contactNormal, pentrationDepth));
+            DetailLog("{0},{1}.Collison.AddCollider,call,with={2},point={3},normal={4},depth={5}",
+                            LocalID, TypeName, collidingWith, contactPoint, contactNormal, pentrationDepth);
+
+            ret = true;
+        }
+        return ret;
+    }
+
+    // Send the collected collisions into the simulator.
+    // Called at taint time from within the Step() function thus no locking problems
+    //      with CollisionCollection and ObjectsWithNoMoreCollisions.
+    // Return 'true' if there were some actual collisions passed up
+    public virtual bool SendCollisions()
+    {
+        bool ret = true;
+        // If the 'no collision' call, force it to happen right now so quick collision_end
+        bool force = CollisionCollection.Count == 0;
+
+        // throttle the collisions to the number of milliseconds specified in the subscription
+        if (force || (PhysicsScene.SimulationNowTime >= NextCollisionOkTime))
+        {
+            NextCollisionOkTime = PhysicsScene.SimulationNowTime + SubscribedEventsMs;
+
+            // We are called if we previously had collisions. If there are no collisions
+            //   this time, send up one last empty event so OpenSim can sense collision end.
+            if (CollisionCollection.Count == 0)
+            {
+                // If I have no collisions this time, remove me from the list of objects with collisions.
+                ret = false;
+            }
+
+            // DetailLog("{0},{1}.SendCollisionUpdate,call,numCollisions={2}", LocalID, TypeName, CollisionCollection.Count);
+            base.SendCollisionUpdate(CollisionCollection);
+
+            // The collisionCollection structure is passed around in the simulator.
+            // Make sure we don't have a handle to that one and that a new one is used for next time.
+            CollisionCollection = new CollisionEventUpdate();
+        }
+        return ret;
+    }
+
+    // Subscribe for collision events.
+    // Parameter is the millisecond rate the caller wishes collision events to occur.
+    public override void SubscribeEvents(int ms) {
+        // DetailLog("{0},{1}.SubscribeEvents,subscribing,ms={2}", LocalID, TypeName, ms);
+        SubscribedEventsMs = ms;
+        if (ms > 0)
+        {
+            // make sure first collision happens
+            NextCollisionOkTime = Util.EnvironmentTickCountSubtract(SubscribedEventsMs);
+
+            PhysicsScene.TaintedObject(TypeName+".SubscribeEvents", delegate()
+            {
+                CurrentCollisionFlags = BulletSimAPI.AddToCollisionFlags2(PhysBody.ptr, CollisionFlags.BS_SUBSCRIBE_COLLISION_EVENTS);
+            });
+        }
+        else
+        {
+            // Subscribing for zero or less is the same as unsubscribing
+            UnSubscribeEvents();
+        }
+    }
+    public override void UnSubscribeEvents() {
+        // DetailLog("{0},{1}.UnSubscribeEvents,unsubscribing", LocalID, TypeName);
+        SubscribedEventsMs = 0;
+        PhysicsScene.TaintedObject(TypeName+".UnSubscribeEvents", delegate()
+        {
+            CurrentCollisionFlags = BulletSimAPI.RemoveFromCollisionFlags2(PhysBody.ptr, CollisionFlags.BS_SUBSCRIBE_COLLISION_EVENTS);
+        });
+    }
+    // Return 'true' if the simulator wants collision events
+    public override bool SubscribedEvents() {
+        return (SubscribedEventsMs > 0);
+    }
+
+    #endregion // Collisions
+
+    // High performance detailed logging routine used by the physical objects.
+    protected void DetailLog(string msg, params Object[] args)
+    {
+        if (PhysicsScene.PhysicsLogging.Enabled)
+            PhysicsScene.DetailLog(msg, args);
+    }
+}
+}
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPlugin.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPlugin.cs
index 0f027b8..20f5180 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPlugin.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPlugin.cs
@@ -33,7 +33,7 @@ using OpenMetaverse;
 namespace OpenSim.Region.Physics.BulletSPlugin
 {
     /// <summary>
-    /// Entry for a port of Bullet (http://bulletphysics.org/) to OpenSim. 
+    /// Entry for a port of Bullet (http://bulletphysics.org/) to OpenSim.
     /// This module interfaces to an unmanaged C++ library which makes the
     /// actual calls into the Bullet physics engine.
     /// The unmanaged library is found in opensim-libs::trunk/unmanaged/BulletSim/.
@@ -62,7 +62,7 @@ public class BSPlugin : IPhysicsPlugin
             if (Util.IsWindows())
                 Util.LoadArchSpecificWindowsDll("BulletSim.dll");
             // If not Windows, loading is performed by the
-            // Mono loader as specified in 
+            // Mono loader as specified in
             // "bin/Physics/OpenSim.Region.Physics.BulletSPlugin.dll.config".
 
             _mScene = new BSScene(sceneIdentifier);
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
index 9c20004..aaa0d93 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
@@ -24,6 +24,9 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
+
+// Uncomment this it enable code to do all shape an body memory management
+//    in the C# code.
 using System;
 using System.Reflection;
 using System.Collections.Generic;
@@ -36,32 +39,18 @@ using OpenSim.Region.Physics.ConvexDecompositionDotNet;
 
 namespace OpenSim.Region.Physics.BulletSPlugin
 {
+
     [Serializable]
-public sealed class BSPrim : PhysicsActor
+public sealed class BSPrim : BSPhysObject
 {
     private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
     private static readonly string LogHeader = "[BULLETS PRIM]";
 
-    private void DebugLog(string mm, params Object[] xx) { if (_scene.ShouldDebugLog) m_log.DebugFormat(mm, xx); }
-
-    private IMesh _mesh;
-    private PrimitiveBaseShape _pbs;
-    private ShapeData.PhysicsShapeType _shapeType;
-    private ulong _meshKey;
-    private ulong _hullKey;
-    private List<ConvexResult> _hulls;
-
-    private BSScene _scene;
-    public BSScene Scene { get { return _scene; } }
-    private String _avName;
-    private uint _localID = 0;
-
-    // _size is what the user passed. _scale is what we pass to the physics engine with the mesh.
-    // Often _scale is unity because the meshmerizer will apply _size when creating the mesh.
+    // _size is what the user passed. Scale is what we pass to the physics engine with the mesh.
+    // Often Scale is unity because the meshmerizer will apply _size when creating the mesh.
     private OMV.Vector3 _size;  // the multiplier for each mesh dimension as passed by the user
-    private OMV.Vector3 _scale; // the multiplier for each mesh dimension for the mesh as created by the meshmerizer
+    // private OMV.Vector3 _scale; // the multiplier for each mesh dimension for the mesh as created by the meshmerizer
 
-    private bool _stopped;
     private bool _grabbed;
     private bool _isSelected;
     private bool _isVolumeDetect;
@@ -89,25 +78,6 @@ public sealed class BSPrim : PhysicsActor
     private bool _kinematic;
     private float _buoyancy;
 
-    // Membership in a linkset is controlled by this class.
-    private BSLinkset _linkset;
-    public BSLinkset Linkset
-    {
-        get { return _linkset; }
-        set { _linkset = value; }
-    }
-
-    private int _subscribedEventsMs = 0;
-    private int _nextCollisionOkTime = 0;
-    long _collidingStep;
-    long _collidingGroundStep;
-
-    private BulletBody m_body;
-    public BulletBody Body { 
-        get { return m_body; }
-        set { m_body = value; }
-    }
-
     private BSDynamics _vehicle;
 
     private OMV.Vector3 _PIDTarget;
@@ -122,108 +92,112 @@ public sealed class BSPrim : PhysicsActor
                        OMV.Quaternion rotation, PrimitiveBaseShape pbs, bool pisPhysical)
     {
         // m_log.DebugFormat("{0}: BSPrim creation of {1}, id={2}", LogHeader, primName, localID);
-        _localID = localID;
-        _avName = primName;
-        _scene = parent_scene;
+        base.BaseInitialize(parent_scene, localID, primName, "BSPrim");
+        _physicsActorType = (int)ActorTypes.Prim;
         _position = pos;
         _size = size;
-        _scale = new OMV.Vector3(1f, 1f, 1f);   // the scale will be set by CreateGeom depending on object type
+        Scale = new OMV.Vector3(1f, 1f, 1f);   // the scale will be set by CreateGeom depending on object type
         _orientation = rotation;
         _buoyancy = 1f;
         _velocity = OMV.Vector3.Zero;
         _rotationalVelocity = OMV.Vector3.Zero;
-        _hullKey = 0;
-        _meshKey = 0;
-        _pbs = pbs;
+        BaseShape = pbs;
         _isPhysical = pisPhysical;
         _isVolumeDetect = false;
-        _subscribedEventsMs = 0;
-        _friction = _scene.Params.defaultFriction;  // TODO: compute based on object material
-        _density = _scene.Params.defaultDensity;    // TODO: compute based on object material
-        _restitution = _scene.Params.defaultRestitution;
-        _linkset = new BSLinkset(_scene, this);     // a linkset of one
-        _vehicle = new BSDynamics(this);            // add vehicleness
+        _friction = PhysicsScene.Params.defaultFriction;  // TODO: compute based on object material
+        _density = PhysicsScene.Params.defaultDensity;    // TODO: compute based on object material
+        _restitution = PhysicsScene.Params.defaultRestitution;
+        _vehicle = new BSDynamics(PhysicsScene, this);            // add vehicleness
         _mass = CalculateMass();
-        // do the actual object creation at taint time
+
+        // No body or shape yet
+        PhysBody = new BulletBody(LocalID, IntPtr.Zero);
+        PhysShape = new BulletShape(IntPtr.Zero);
+
         DetailLog("{0},BSPrim.constructor,call", LocalID);
-        _scene.TaintedObject("BSPrim.create", delegate()
+        // do the actual object creation at taint time
+        PhysicsScene.TaintedObject("BSPrim.create", delegate()
         {
-            RecreateGeomAndObject();
+            CreateGeomAndObject(true);
 
-            // Get the pointer to the physical body for this object.
-            // At the moment, we're still letting BulletSim manage the creation and destruction
-            //    of the object. Someday we'll move that into the C# code.
-            m_body = new BulletBody(LocalID, BulletSimAPI.GetBodyHandle2(_scene.World.Ptr, LocalID));
+            CurrentCollisionFlags = BulletSimAPI.GetCollisionFlags2(PhysBody.ptr);
         });
     }
 
     // called when this prim is being destroyed and we should free all the resources
-    public void Destroy()
+    public override void Destroy()
     {
         // m_log.DebugFormat("{0}: Destroy, id={1}", LogHeader, LocalID);
 
         // Undo any links between me and any other object
-        BSPrim parentBefore = _linkset.LinksetRoot;
-        int childrenBefore = _linkset.NumberOfChildren;
+        BSPhysObject parentBefore = Linkset.LinksetRoot;
+        int childrenBefore = Linkset.NumberOfChildren;
 
-        _linkset = _linkset.RemoveMeFromLinkset(this);
+        Linkset = Linkset.RemoveMeFromLinkset(this);
 
         DetailLog("{0},BSPrim.Destroy,call,parentBefore={1},childrenBefore={2},parentAfter={3},childrenAfter={4}",
-            LocalID, parentBefore.LocalID, childrenBefore, _linkset.LinksetRoot.LocalID, _linkset.NumberOfChildren);
+            LocalID, parentBefore.LocalID, childrenBefore, Linkset.LinksetRoot.LocalID, Linkset.NumberOfChildren);
 
         // Undo any vehicle properties
         this.VehicleType = (int)Vehicle.TYPE_NONE;
 
-        _scene.TaintedObject("BSPrim.destroy", delegate()
+        PhysicsScene.TaintedObject("BSPrim.destroy", delegate()
         {
             DetailLog("{0},BSPrim.Destroy,taint,", LocalID);
-            // everything in the C# world will get garbage collected. Tell the C++ world to free stuff.
-            BulletSimAPI.DestroyObject(_scene.WorldID, LocalID);
+            // If there are physical body and shape, release my use of same.
+            PhysicsScene.Shapes.DereferenceBody(PhysBody, true, null);
+            PhysicsScene.Shapes.DereferenceShape(PhysShape, true, null);
         });
     }
-    
-    public override bool Stopped { 
-        get { return _stopped; } 
+
+    // No one uses this property.
+    public override bool Stopped {
+        get { return false; }
     }
-    public override OMV.Vector3 Size { 
-        get { return _size; } 
+    public override OMV.Vector3 Size {
+        get { return _size; }
         set {
             _size = value;
-            _scene.TaintedObject("BSPrim.setSize", delegate()
-            {
-                _mass = CalculateMass();   // changing size changes the mass
-                BulletSimAPI.SetObjectScaleMass(_scene.WorldID, _localID, _scale, (IsPhysical ? _mass : 0f), IsPhysical);
-                // DetailLog("{0}: BSPrim.setSize: size={1}, mass={2}, physical={3}", LocalID, _size, _mass, IsPhysical);
-                RecreateGeomAndObject();
-            });
-        } 
+            ForceBodyShapeRebuild(false);
+        }
     }
-    public override PrimitiveBaseShape Shape { 
+    // Scale is what we set in the physics engine. It is different than 'size' in that
+    //     'size' can be encorporated into the mesh. In that case, the scale is <1,1,1>.
+    public override OMV.Vector3 Scale { get; set; }
+
+    public override PrimitiveBaseShape Shape {
         set {
-            _pbs = value;
-            _scene.TaintedObject("BSPrim.setShape", delegate()
-            {
-                _mass = CalculateMass();   // changing the shape changes the mass
-                RecreateGeomAndObject();
-            });
-        } 
+            BaseShape = value;
+            ForceBodyShapeRebuild(false);
+        }
     }
-    public override uint LocalID { 
-        set { _localID = value; }
-        get { return _localID; }
+    // Whatever the linkset wants is what I want.
+    public override ShapeData.PhysicsShapeType PreferredPhysicalShape
+        { get { return Linkset.PreferredPhysicalShape(this); } }
+
+    public override bool ForceBodyShapeRebuild(bool inTaintTime)
+    {
+        LastAssetBuildFailed = false;
+        PhysicsScene.TaintedObject(inTaintTime, "BSPrim.ForceBodyShapeRebuild", delegate()
+        {
+            _mass = CalculateMass();   // changing the shape changes the mass
+            CreateGeomAndObject(true);
+        });
+        return true;
     }
-    public override bool Grabbed { 
-        set { _grabbed = value; 
-        } 
+    public override bool Grabbed {
+        set { _grabbed = value;
+        }
     }
-    public override bool Selected { 
+    public override bool Selected {
         set {
             _isSelected = value;
-            _scene.TaintedObject("BSPrim.setSelected", delegate()
+            PhysicsScene.TaintedObject("BSPrim.setSelected", delegate()
             {
-                SetObjectDynamic();
+                DetailLog("{0},BSPrim.selected,taint,selected={1}", LocalID, _isSelected);
+                SetObjectDynamic(false);
             });
-        } 
+        }
     }
     public override void CrossingFailure() { return; }
 
@@ -232,158 +206,255 @@ public sealed class BSPrim : PhysicsActor
         BSPrim parent = obj as BSPrim;
         if (parent != null)
         {
-            DebugLog("{0}: link {1}/{2} to {3}", LogHeader, _avName, _localID, parent.LocalID);
-            BSPrim parentBefore = _linkset.LinksetRoot;
-            int childrenBefore = _linkset.NumberOfChildren;
+            BSPhysObject parentBefore = Linkset.LinksetRoot;
+            int childrenBefore = Linkset.NumberOfChildren;
 
-            _linkset = parent.Linkset.AddMeToLinkset(this);
+            Linkset = parent.Linkset.AddMeToLinkset(this);
 
-            DetailLog("{0},BSPrim.link,call,parentBefore={1}, childrenBefore=={2}, parentAfter={3}, childrenAfter={4}", 
-                LocalID, parentBefore.LocalID, childrenBefore, _linkset.LinksetRoot.LocalID, _linkset.NumberOfChildren);
+            DetailLog("{0},BSPrim.link,call,parentBefore={1}, childrenBefore=={2}, parentAfter={3}, childrenAfter={4}",
+                LocalID, parentBefore.LocalID, childrenBefore, Linkset.LinksetRoot.LocalID, Linkset.NumberOfChildren);
         }
-        return; 
+        return;
     }
 
     // delink me from my linkset
     public override void delink() {
         // TODO: decide if this parent checking needs to happen at taint time
         // Race condition here: if link() and delink() in same simulation tick, the delink will not happen
-        DebugLog("{0}: delink {1}/{2}. Parent={3}", LogHeader, _avName, _localID, 
-                            _linkset.LinksetRoot._avName+"/"+_linkset.LinksetRoot.LocalID.ToString());
 
-        BSPrim parentBefore = _linkset.LinksetRoot;
-        int childrenBefore = _linkset.NumberOfChildren;
-        
-        _linkset = _linkset.RemoveMeFromLinkset(this);
+        BSPhysObject parentBefore = Linkset.LinksetRoot;
+        int childrenBefore = Linkset.NumberOfChildren;
 
-        DetailLog("{0},BSPrim.delink,parentBefore={1},childrenBefore={2},parentAfter={3},childrenAfter={4}, ", 
-            LocalID, parentBefore.LocalID, childrenBefore, _linkset.LinksetRoot.LocalID, _linkset.NumberOfChildren);
-        return; 
+        Linkset = Linkset.RemoveMeFromLinkset(this);
+
+        DetailLog("{0},BSPrim.delink,parentBefore={1},childrenBefore={2},parentAfter={3},childrenAfter={4}, ",
+            LocalID, parentBefore.LocalID, childrenBefore, Linkset.LinksetRoot.LocalID, Linkset.NumberOfChildren);
+        return;
     }
 
     // Set motion values to zero.
     // Do it to the properties so the values get set in the physics engine.
     // Push the setting of the values to the viewer.
     // Called at taint time!
-    public void ZeroMotion()
+    public override void ZeroMotion()
     {
         _velocity = OMV.Vector3.Zero;
         _acceleration = OMV.Vector3.Zero;
         _rotationalVelocity = OMV.Vector3.Zero;
 
-        // Zero some other properties directly into the physics engine
-        BulletSimAPI.SetVelocity2(Body.Ptr, OMV.Vector3.Zero);
-        BulletSimAPI.SetAngularVelocity2(Body.Ptr, OMV.Vector3.Zero);
-        BulletSimAPI.SetInterpolation2(Body.Ptr, OMV.Vector3.Zero, OMV.Vector3.Zero);
-        BulletSimAPI.ClearForces2(Body.Ptr);
+        // Zero some other properties in the physics engine
+        BulletSimAPI.ClearAllForces2(PhysBody.ptr);
     }
 
     public override void LockAngularMotion(OMV.Vector3 axis)
-    { 
-        // DetailLog("{0},BSPrim.LockAngularMotion,call,axis={1}", LocalID, axis);
+    {
+        DetailLog("{0},BSPrim.LockAngularMotion,call,axis={1}", LocalID, axis);
         return;
     }
 
-    public override OMV.Vector3 Position { 
-        get { 
-            if (!_linkset.IsRoot(this))
-                // child prims move around based on their parent. Need to get the latest location
-                _position = BulletSimAPI.GetObjectPosition(_scene.WorldID, _localID);
+    public override OMV.Vector3 RawPosition
+    {
+        get { return _position; }
+        set { _position = value; }
+    }
+    public override OMV.Vector3 Position {
+        get {
+            // child prims move around based on their parent. Need to get the latest location
+            if (!Linkset.IsRoot(this))
+                _position = Linkset.Position(this);
 
             // don't do the GetObjectPosition for root elements because this function is called a zillion times
-            // _position = BulletSimAPI.GetObjectPosition(_scene.WorldID, _localID);
-            return _position; 
-        } 
+            // _position = BulletSimAPI.GetObjectPosition2(PhysicsScene.World.ptr, BSBody.ptr);
+            return _position;
+        }
         set {
+            // If you must push the position into the physics engine, use ForcePosition.
+            if (_position == value)
+            {
+                return;
+            }
             _position = value;
             // TODO: what does it mean to set the position of a child prim?? Rebuild the constraint?
-            _scene.TaintedObject("BSPrim.setPosition", delegate()
+            PositionSanityCheck();
+            PhysicsScene.TaintedObject("BSPrim.setPosition", delegate()
             {
                 // DetailLog("{0},BSPrim.SetPosition,taint,pos={1},orient={2}", LocalID, _position, _orientation);
-                BulletSimAPI.SetObjectTranslation(_scene.WorldID, _localID, _position, _orientation);
+                BulletSimAPI.SetTranslation2(PhysBody.ptr, _position, _orientation);
+                ActivateIfPhysical(false);
+            });
+        }
+    }
+    public override OMV.Vector3 ForcePosition {
+        get {
+            _position = BulletSimAPI.GetPosition2(PhysBody.ptr);
+            return _position;
+        }
+        set {
+            _position = value;
+            PositionSanityCheck();
+            BulletSimAPI.SetTranslation2(PhysBody.ptr, _position, _orientation);
+            ActivateIfPhysical(false);
+        }
+    }
+
+    // Check that the current position is sane and, if not, modify the position to make it so.
+    // Check for being below terrain and being out of bounds.
+    // Returns 'true' of the position was made sane by some action.
+    private bool PositionSanityCheck()
+    {
+        bool ret = false;
+
+        // If totally below the ground, move the prim up
+        // TODO: figure out the right solution for this... only for dynamic objects?
+        /*
+        float terrainHeight = PhysicsScene.TerrainManager.GetTerrainHeightAtXYZ(_position);
+        if (Position.Z < terrainHeight)
+        {
+            DetailLog("{0},BSPrim.PositionAdjustUnderGround,call,pos={1},terrain={2}", LocalID, _position, terrainHeight);
+            _position.Z = terrainHeight + 2.0f;
+            ret = true;
+        }
+         */
+        if ((CurrentCollisionFlags & CollisionFlags.BS_FLOATS_ON_WATER) != 0)
+        {
+            float waterHeight = PhysicsScene.GetWaterLevelAtXYZ(_position);
+            // TODO: a floating motor so object will bob in the water
+            if (Position.Z < waterHeight)
+            {
+                _position.Z = waterHeight;
+                ret = true;
+            }
+        }
+
+        // TODO: check for out of bounds
+        return ret;
+    }
+
+    // A version of the sanity check that also makes sure a new position value is
+    //    pushed to the physics engine. This routine would be used by anyone
+    //    who is not already pushing the value.
+    private bool PositionSanityCheck(bool inTaintTime)
+    {
+        bool ret = false;
+        if (PositionSanityCheck())
+        {
+            // The new position value must be pushed into the physics engine but we can't
+            //    just assign to "Position" because of potential call loops.
+            PhysicsScene.TaintedObject(inTaintTime, "BSPrim.PositionSanityCheck", delegate()
+            {
+                DetailLog("{0},BSPrim.PositionSanityCheck,taint,pos={1},orient={2}", LocalID, _position, _orientation);
+                ForcePosition = _position;
             });
-        } 
+            ret = true;
+        }
+        return ret;
     }
 
     // Return the effective mass of the object.
     // If there are multiple items in the linkset, add them together for the root
     public override float Mass
-    { 
+    {
         get
         {
-            return _linkset.LinksetMass;
+            return Linkset.LinksetMass;
+            // return _mass;
         }
     }
 
     // used when we only want this prim's mass and not the linkset thing
-    public float MassRaw { get { return _mass; } }
+    public override float RawMass { 
+        get { return _mass; }
+    }
+    // Set the physical mass to the passed mass.
+    // Note that this does not change _mass!
+    public override void UpdatePhysicalMassProperties(float physMass)
+    {
+        if (IsStatic)
+        {
+            BulletSimAPI.SetMassProps2(PhysBody.ptr, 0f, OMV.Vector3.Zero);
+            BulletSimAPI.UpdateInertiaTensor2(PhysBody.ptr);
+        }
+        else
+        {
+            OMV.Vector3 localInertia = BulletSimAPI.CalculateLocalInertia2(PhysShape.ptr, physMass);
+            BulletSimAPI.SetMassProps2(PhysBody.ptr, physMass, localInertia);
+            // center of mass is at the zero of the object
+            BulletSimAPI.SetCenterOfMassByPosRot2(PhysBody.ptr, ForcePosition, ForceOrientation);
+            // BulletSimAPI.UpdateInertiaTensor2(BSBody.ptr);
+            DetailLog("{0},BSPrim.UpdateMassProperties,mass={1},localInertia={2}", LocalID, physMass, localInertia);
+        }
+    }
 
     // Is this used?
     public override OMV.Vector3 CenterOfMass
     {
-        get { return _linkset.CenterOfMass; }
+        get { return Linkset.CenterOfMass; }
     }
 
     // Is this used?
     public override OMV.Vector3 GeometricCenter
     {
-        get { return _linkset.GeometricCenter; }
+        get { return Linkset.GeometricCenter; }
     }
 
-    public override OMV.Vector3 Force { 
-        get { return _force; } 
+    public override OMV.Vector3 Force {
+        get { return _force; }
         set {
             _force = value;
-            _scene.TaintedObject("BSPrim.setForce", delegate()
+            PhysicsScene.TaintedObject("BSPrim.setForce", delegate()
             {
                 // DetailLog("{0},BSPrim.setForce,taint,force={1}", LocalID, _force);
-                // BulletSimAPI.SetObjectForce(_scene.WorldID, _localID, _force);
-                BulletSimAPI.SetObjectForce2(Body.Ptr, _force);
+                BulletSimAPI.SetObjectForce2(PhysBody.ptr, _force);
             });
-        } 
+        }
     }
 
-    public override int VehicleType { 
+    public override int VehicleType {
         get {
             return (int)_vehicle.Type;   // if we are a vehicle, return that type
-        } 
+        }
         set {
             Vehicle type = (Vehicle)value;
-            BSPrim vehiclePrim = this;
-            _scene.TaintedObject("setVehicleType", delegate()
+
+            // Tell the scene about the vehicle so it will get processing each frame.
+            PhysicsScene.VehicleInSceneTypeChanged(this, type);
+
+            PhysicsScene.TaintedObject("setVehicleType", delegate()
             {
                 // Done at taint time so we're sure the physics engine is not using the variables
                 // Vehicle code changes the parameters for this vehicle type.
                 _vehicle.ProcessTypeChange(type);
-                // Tell the scene about the vehicle so it will get processing each frame.
-                _scene.VehicleInSceneTypeChanged(this, type);
+                ActivateIfPhysical(false);
             });
-        } 
+        }
     }
-    public override void VehicleFloatParam(int param, float value) 
+    public override void VehicleFloatParam(int param, float value)
     {
-        _scene.TaintedObject("BSPrim.VehicleFloatParam", delegate()
+        PhysicsScene.TaintedObject("BSPrim.VehicleFloatParam", delegate()
         {
-            _vehicle.ProcessFloatVehicleParam((Vehicle)param, value, _scene.LastSimulatedTimestep);
+            _vehicle.ProcessFloatVehicleParam((Vehicle)param, value);
+            ActivateIfPhysical(false);
         });
     }
-    public override void VehicleVectorParam(int param, OMV.Vector3 value) 
+    public override void VehicleVectorParam(int param, OMV.Vector3 value)
     {
-        _scene.TaintedObject("BSPrim.VehicleVectorParam", delegate()
+        PhysicsScene.TaintedObject("BSPrim.VehicleVectorParam", delegate()
         {
-            _vehicle.ProcessVectorVehicleParam((Vehicle)param, value, _scene.LastSimulatedTimestep);
+            _vehicle.ProcessVectorVehicleParam((Vehicle)param, value);
+            ActivateIfPhysical(false);
         });
     }
-    public override void VehicleRotationParam(int param, OMV.Quaternion rotation) 
+    public override void VehicleRotationParam(int param, OMV.Quaternion rotation)
     {
-        _scene.TaintedObject("BSPrim.VehicleRotationParam", delegate()
+        PhysicsScene.TaintedObject("BSPrim.VehicleRotationParam", delegate()
         {
             _vehicle.ProcessRotationVehicleParam((Vehicle)param, rotation);
+            ActivateIfPhysical(false);
         });
     }
-    public override void VehicleFlags(int param, bool remove) 
+    public override void VehicleFlags(int param, bool remove)
     {
-        _scene.TaintedObject("BSPrim.VehicleFlags", delegate()
+        PhysicsScene.TaintedObject("BSPrim.VehicleFlags", delegate()
         {
             _vehicle.ProcessVehicleFlags(param, remove);
         });
@@ -391,143 +462,355 @@ public sealed class BSPrim : PhysicsActor
 
     // Called each simulation step to advance vehicle characteristics.
     // Called from Scene when doing simulation step so we're in taint processing time.
-    public void StepVehicle(float timeStep)
+    public override void StepVehicle(float timeStep)
     {
-        if (IsPhysical)
+        if (IsPhysical && _vehicle.IsActive)
+        {
             _vehicle.Step(timeStep);
+            /* // TEST TEST DEBUG DEBUG -- trying to reduce the extra action of Bullet simulation step
+            PhysicsScene.PostTaintObject("BSPrim.StepVehicles", LocalID, delegate()
+            {
+                // This resets the interpolation values and recomputes the tensor variables
+                BulletSimAPI.SetCenterOfMassByPosRot2(BSBody.ptr, ForcePosition, ForceOrientation);
+            });
+             */
+        }
     }
 
     // Allows the detection of collisions with inherently non-physical prims. see llVolumeDetect for more
     public override void SetVolumeDetect(int param) {
         bool newValue = (param != 0);
-        _isVolumeDetect = newValue;
-        _scene.TaintedObject("BSPrim.SetVolumeDetect", delegate()
+        if (_isVolumeDetect != newValue)
         {
-            SetObjectDynamic();
-        });
-        return; 
+            _isVolumeDetect = newValue;
+            PhysicsScene.TaintedObject("BSPrim.SetVolumeDetect", delegate()
+            {
+                // DetailLog("{0},setVolumeDetect,taint,volDetect={1}", LocalID, _isVolumeDetect);
+                SetObjectDynamic(true);
+            });
+        }
+        return;
     }
-
-    public override OMV.Vector3 Velocity { 
-        get { return _velocity; } 
+    public override OMV.Vector3 Velocity {
+        get { return _velocity; }
         set {
             _velocity = value;
-            _scene.TaintedObject("BSPrim.setVelocity", delegate()
+            PhysicsScene.TaintedObject("BSPrim.setVelocity", delegate()
             {
                 // DetailLog("{0},BSPrim.SetVelocity,taint,vel={1}", LocalID, _velocity);
-                BulletSimAPI.SetObjectVelocity(_scene.WorldID, LocalID, _velocity);
+                BulletSimAPI.SetLinearVelocity2(PhysBody.ptr, _velocity);
             });
-        } 
+        }
+    }
+    public override OMV.Vector3 ForceVelocity {
+        get { return _velocity; }
+        set {
+            _velocity = value;
+            BulletSimAPI.SetLinearVelocity2(PhysBody.ptr, _velocity);
+        }
     }
-    public override OMV.Vector3 Torque { 
-        get { return _torque; } 
-        set { _torque = value; 
+    public override OMV.Vector3 Torque {
+        get { return _torque; }
+        set {
+            _torque = value;
+            AddAngularForce(_torque, false, false);
             // DetailLog("{0},BSPrim.SetTorque,call,torque={1}", LocalID, _torque);
-        } 
+        }
     }
-    public override float CollisionScore { 
-        get { return _collisionScore; } 
-        set { _collisionScore = value; 
-        } 
+    public override float CollisionScore {
+        get { return _collisionScore; }
+        set { _collisionScore = value;
+        }
     }
-    public override OMV.Vector3 Acceleration { 
+    public override OMV.Vector3 Acceleration {
         get { return _acceleration; }
         set { _acceleration = value; }
     }
-    public override OMV.Quaternion Orientation { 
+    public override OMV.Quaternion RawOrientation
+    {
+        get { return _orientation; }
+        set { _orientation = value; }
+    }
+    public override OMV.Quaternion Orientation {
         get {
-            if (!_linkset.IsRoot(this))
+            // Children move around because tied to parent. Get a fresh value.
+            if (!Linkset.IsRoot(this))
             {
-                // Children move around because tied to parent. Get a fresh value.
-                _orientation = BulletSimAPI.GetObjectOrientation(_scene.WorldID, LocalID);
+                _orientation = Linkset.Orientation(this);
             }
             return _orientation;
-        } 
+        }
         set {
+            if (_orientation == value)
+                return;
             _orientation = value;
             // TODO: what does it mean if a child in a linkset changes its orientation? Rebuild the constraint?
-            _scene.TaintedObject("BSPrim.setOrientation", delegate()
+            PhysicsScene.TaintedObject("BSPrim.setOrientation", delegate()
             {
-                // _position = BulletSimAPI.GetObjectPosition(_scene.WorldID, _localID);
+                // _position = BulletSimAPI.GetObjectPosition2(PhysicsScene.World.ptr, BSBody.ptr);
                 // DetailLog("{0},BSPrim.setOrientation,taint,pos={1},orient={2}", LocalID, _position, _orientation);
-                BulletSimAPI.SetObjectTranslation(_scene.WorldID, _localID, _position, _orientation);
+                BulletSimAPI.SetTranslation2(PhysBody.ptr, _position, _orientation);
             });
-        } 
+        }
     }
-    public override int PhysicsActorType { 
-        get { return _physicsActorType; } 
-        set { _physicsActorType = value; 
-        } 
+    // Go directly to Bullet to get/set the value.
+    public override OMV.Quaternion ForceOrientation
+    {
+        get
+        {
+            _orientation = BulletSimAPI.GetOrientation2(PhysBody.ptr);
+            return _orientation;
+        }
+        set
+        {
+            _orientation = value;
+            BulletSimAPI.SetTranslation2(PhysBody.ptr, _position, _orientation);
+        }
     }
-    public override bool IsPhysical { 
-        get { return _isPhysical; } 
+    public override int PhysicsActorType {
+        get { return _physicsActorType; }
+        set { _physicsActorType = value; }
+    }
+    public override bool IsPhysical {
+        get { return _isPhysical; }
         set {
-            _isPhysical = value;
-            _scene.TaintedObject("BSPrim.setIsPhysical", delegate()
+            if (_isPhysical != value)
             {
-                SetObjectDynamic();
-            });
-        } 
+                _isPhysical = value;
+                PhysicsScene.TaintedObject("BSPrim.setIsPhysical", delegate()
+                {
+                    // DetailLog("{0},setIsPhysical,taint,isPhys={1}", LocalID, _isPhysical);
+                    SetObjectDynamic(true);
+                    // whether phys-to-static or static-to-phys, the object is not moving.
+                    ZeroMotion();
+                });
+            }
+        }
     }
 
     // An object is static (does not move) if selected or not physical
-    private bool IsStatic
+    public override bool IsStatic
     {
         get { return _isSelected || !IsPhysical; }
     }
 
     // An object is solid if it's not phantom and if it's not doing VolumeDetect
-    private bool IsSolid
+    public override bool IsSolid
     {
         get { return !IsPhantom && !_isVolumeDetect; }
     }
 
     // Make gravity work if the object is physical and not selected
-    // No locking here because only called when it is safe
-    private void SetObjectDynamic()
+    // Called at taint-time!!
+    private void SetObjectDynamic(bool forceRebuild)
+    {
+        // Recreate the physical object if necessary
+        CreateGeomAndObject(forceRebuild);
+    }
+
+    // Convert the simulator's physical properties into settings on BulletSim objects.
+    // There are four flags we're interested in:
+    //     IsStatic: Object does not move, otherwise the object has mass and moves
+    //     isSolid: other objects bounce off of this object
+    //     isVolumeDetect: other objects pass through but can generate collisions
+    //     collisionEvents: whether this object returns collision events
+    private void UpdatePhysicalParameters()
+    {
+        // DetailLog("{0},BSPrim.UpdatePhysicalParameters,entry,body={1},shape={2}", LocalID, BSBody, BSShape);
+
+        // Mangling all the physical properties requires the object not be in the physical world.
+        // This is a NOOP if the object is not in the world (BulletSim and Bullet ignore objects not found).
+        BulletSimAPI.RemoveObjectFromWorld2(PhysicsScene.World.ptr, PhysBody.ptr);
+
+        // Set up the object physicalness (does gravity and collisions move this object)
+        MakeDynamic(IsStatic);
+
+        // Update vehicle specific parameters (after MakeDynamic() so can change physical parameters)
+        _vehicle.Refresh();
+
+        // Arrange for collision events if the simulator wants them
+        EnableCollisions(SubscribedEvents());
+
+        // Make solid or not (do things bounce off or pass through this object).
+        MakeSolid(IsSolid);
+
+        BulletSimAPI.AddObjectToWorld2(PhysicsScene.World.ptr, PhysBody.ptr);
+
+        // Rebuild its shape
+        BulletSimAPI.UpdateSingleAabb2(PhysicsScene.World.ptr, PhysBody.ptr);
+
+        // Collision filter can be set only when the object is in the world
+        if (PhysBody.collisionFilter != 0 || PhysBody.collisionMask != 0)
+        {
+            BulletSimAPI.SetCollisionFilterMask2(PhysBody.ptr, (uint)PhysBody.collisionFilter, (uint)PhysBody.collisionMask);
+        }
+
+        // Recompute any linkset parameters.
+        // When going from non-physical to physical, this re-enables the constraints that
+        //     had been automatically disabled when the mass was set to zero.
+        Linkset.Refresh(this);
+
+        DetailLog("{0},BSPrim.UpdatePhysicalParameters,taintExit,static={1},solid={2},mass={3},collide={4},cf={5:X},body={6},shape={7}",
+                        LocalID, IsStatic, IsSolid, _mass, SubscribedEvents(), CurrentCollisionFlags, PhysBody, PhysShape);
+    }
+
+    // "Making dynamic" means changing to and from static.
+    // When static, gravity does not effect the object and it is fixed in space.
+    // When dynamic, the object can fall and be pushed by others.
+    // This is independent of its 'solidness' which controls what passes through
+    //    this object and what interacts with it.
+    private void MakeDynamic(bool makeStatic)
     {
-        // RA: remove this for the moment.
-        // The problem is that dynamic objects are hulls so if we are becoming physical
-        //    the shape has to be checked and possibly built.
-        //    Maybe a VerifyCorrectPhysicalShape() routine?
-        // RecreateGeomAndObject();
+        if (makeStatic)
+        {
+            // Become a Bullet 'static' object type
+            CurrentCollisionFlags = BulletSimAPI.AddToCollisionFlags2(PhysBody.ptr, CollisionFlags.CF_STATIC_OBJECT);
+            // Stop all movement
+            ZeroMotion();
+            // Center of mass is at the center of the object
+            BulletSimAPI.SetCenterOfMassByPosRot2(Linkset.LinksetRoot.PhysBody.ptr, _position, _orientation);
+            // Mass is zero which disables a bunch of physics stuff in Bullet
+            UpdatePhysicalMassProperties(0f);
+            // Set collision detection parameters
+            if (PhysicsScene.Params.ccdMotionThreshold > 0f)
+            {
+                BulletSimAPI.SetCcdMotionThreshold2(PhysBody.ptr, PhysicsScene.Params.ccdMotionThreshold);
+                BulletSimAPI.SetCcdSweptSphereRadius2(PhysBody.ptr, PhysicsScene.Params.ccdSweptSphereRadius);
+            }
+            // There can be special things needed for implementing linksets
+            Linkset.MakeStatic(this);
+            // The activation state is 'disabled' so Bullet will not try to act on it.
+            BulletSimAPI.ForceActivationState2(PhysBody.ptr, ActivationState.DISABLE_SIMULATION);
+            // Start it out sleeping and physical actions could wake it up.
+            // BulletSimAPI.ForceActivationState2(BSBody.ptr, ActivationState.ISLAND_SLEEPING);
+
+            PhysBody.collisionFilter = CollisionFilterGroups.StaticObjectFilter;
+            PhysBody.collisionMask = CollisionFilterGroups.StaticObjectMask;
+        }
+        else
+        {
+            // Not a Bullet static object
+            CurrentCollisionFlags = BulletSimAPI.RemoveFromCollisionFlags2(PhysBody.ptr, CollisionFlags.CF_STATIC_OBJECT);
+
+            // Set various physical properties so internal dynamic properties will get computed correctly as they are set
+            BulletSimAPI.SetFriction2(PhysBody.ptr, PhysicsScene.Params.defaultFriction);
+            BulletSimAPI.SetRestitution2(PhysBody.ptr, PhysicsScene.Params.defaultRestitution);
+
+            // per http://www.bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=3382
+            // Since this can be called multiple times, only zero forces when becoming physical
+            // BulletSimAPI.ClearAllForces2(BSBody.ptr);
 
-        // Bullet wants static objects to have a mass of zero
-        float mass = IsStatic ? 0f : _mass;
+            // For good measure, make sure the transform is set through to the motion state
+            BulletSimAPI.SetTranslation2(PhysBody.ptr, _position, _orientation);
 
-        BulletSimAPI.SetObjectProperties(_scene.WorldID, LocalID, IsStatic, IsSolid, SubscribedEvents(), mass);
+            // Center of mass is at the center of the object
+            BulletSimAPI.SetCenterOfMassByPosRot2(Linkset.LinksetRoot.PhysBody.ptr, _position, _orientation);
+
+            // A dynamic object has mass
+            UpdatePhysicalMassProperties(RawMass);
+
+            // Set collision detection parameters
+            if (PhysicsScene.Params.ccdMotionThreshold > 0f)
+            {
+                BulletSimAPI.SetCcdMotionThreshold2(PhysBody.ptr, PhysicsScene.Params.ccdMotionThreshold);
+                BulletSimAPI.SetCcdSweptSphereRadius2(PhysBody.ptr, PhysicsScene.Params.ccdSweptSphereRadius);
+            }
+
+            // Various values for simulation limits
+            BulletSimAPI.SetDamping2(PhysBody.ptr, PhysicsScene.Params.linearDamping, PhysicsScene.Params.angularDamping);
+            BulletSimAPI.SetDeactivationTime2(PhysBody.ptr, PhysicsScene.Params.deactivationTime);
+            BulletSimAPI.SetSleepingThresholds2(PhysBody.ptr, PhysicsScene.Params.linearSleepingThreshold, PhysicsScene.Params.angularSleepingThreshold);
+            BulletSimAPI.SetContactProcessingThreshold2(PhysBody.ptr, PhysicsScene.Params.contactProcessingThreshold);
+
+            // There might be special things needed for implementing linksets.
+            Linkset.MakeDynamic(this);
+
+            // Force activation of the object so Bullet will act on it.
+            // Must do the ForceActivationState2() to overcome the DISABLE_SIMULATION from static objects.
+            BulletSimAPI.ForceActivationState2(PhysBody.ptr, ActivationState.ACTIVE_TAG);
+            // BulletSimAPI.Activate2(BSBody.ptr, true);
+
+            PhysBody.collisionFilter = CollisionFilterGroups.ObjectFilter;
+            PhysBody.collisionMask = CollisionFilterGroups.ObjectMask;
+        }
+    }
+
+    // "Making solid" means that other object will not pass through this object.
+    // To make transparent, we create a Bullet ghost object.
+    // Note: This expects to be called from the UpdatePhysicalParameters() routine as
+    //     the functions after this one set up the state of a possibly newly created collision body.
+    private void MakeSolid(bool makeSolid)
+    {
+        CollisionObjectTypes bodyType = (CollisionObjectTypes)BulletSimAPI.GetBodyType2(PhysBody.ptr);
+        if (makeSolid)
+        {
+            // Verify the previous code created the correct shape for this type of thing.
+            if ((bodyType & CollisionObjectTypes.CO_RIGID_BODY) == 0)
+            {
+                m_log.ErrorFormat("{0} MakeSolid: physical body of wrong type for solidity. id={1}, type={2}", LogHeader, LocalID, bodyType);
+            }
+            CurrentCollisionFlags = BulletSimAPI.RemoveFromCollisionFlags2(PhysBody.ptr, CollisionFlags.CF_NO_CONTACT_RESPONSE);
+        }
+        else
+        {
+            if ((bodyType & CollisionObjectTypes.CO_GHOST_OBJECT) == 0)
+            {
+                m_log.ErrorFormat("{0} MakeSolid: physical body of wrong type for non-solidness. id={1}, type={2}", LogHeader, LocalID, bodyType);
+            }
+            CurrentCollisionFlags = BulletSimAPI.AddToCollisionFlags2(PhysBody.ptr, CollisionFlags.CF_NO_CONTACT_RESPONSE);
+            PhysBody.collisionFilter = CollisionFilterGroups.VolumeDetectFilter;
+            PhysBody.collisionMask = CollisionFilterGroups.VolumeDetectMask;
+        }
+    }
 
-        // recompute any linkset parameters
-        _linkset.Refresh(this);
+    // Enable physical actions. Bullet will keep sleeping non-moving physical objects so
+    //     they need waking up when parameters are changed.
+    // Called in taint-time!!
+    private void ActivateIfPhysical(bool forceIt)
+    {
+        if (IsPhysical)
+            BulletSimAPI.Activate2(PhysBody.ptr, forceIt);
+    }
 
-        CollisionFlags cf = BulletSimAPI.GetCollisionFlags2(Body.Ptr);
-        // DetailLog("{0},BSPrim.SetObjectDynamic,taint,static={1},solid={2},mass={3}, cf={4}", LocalID, IsStatic, IsSolid, mass, cf);
+    // Turn on or off the flag controlling whether collision events are returned to the simulator.
+    private void EnableCollisions(bool wantsCollisionEvents)
+    {
+        if (wantsCollisionEvents)
+        {
+            CurrentCollisionFlags = BulletSimAPI.AddToCollisionFlags2(PhysBody.ptr, CollisionFlags.BS_SUBSCRIBE_COLLISION_EVENTS);
+        }
+        else
+        {
+            CurrentCollisionFlags = BulletSimAPI.RemoveFromCollisionFlags2(PhysBody.ptr, CollisionFlags.BS_SUBSCRIBE_COLLISION_EVENTS);
+        }
     }
 
     // prims don't fly
-    public override bool Flying { 
-        get { return _flying; } 
-        set { _flying = value; } 
+    public override bool Flying {
+        get { return _flying; }
+        set {
+            _flying = value;
+        }
     }
-    public override bool SetAlwaysRun { 
-        get { return _setAlwaysRun; } 
-        set { _setAlwaysRun = value; } 
+    public override bool SetAlwaysRun {
+        get { return _setAlwaysRun; }
+        set { _setAlwaysRun = value; }
     }
-    public override bool ThrottleUpdates { 
-        get { return _throttleUpdates; } 
-        set { _throttleUpdates = value; } 
+    public override bool ThrottleUpdates {
+        get { return _throttleUpdates; }
+        set { _throttleUpdates = value; }
     }
     public override bool IsColliding {
-        get { return (_collidingStep == _scene.SimulationStep); } 
-        set { _isColliding = value; } 
+        get { return (CollidingStep == PhysicsScene.SimulationStep); }
+        set { _isColliding = value; }
     }
     public override bool CollidingGround {
-        get { return (_collidingGroundStep == _scene.SimulationStep); } 
-        set { _collidingGround = value; } 
+        get { return (CollidingGroundStep == PhysicsScene.SimulationStep); }
+        set { _collidingGround = value; }
     }
-    public override bool CollidingObj { 
-        get { return _collidingObj; } 
-        set { _collidingObj = value; } 
+    public override bool CollidingObj {
+        get { return _collidingObj; }
+        set { _collidingObj = value; }
     }
     public bool IsPhantom {
         get {
@@ -537,10 +820,19 @@ public sealed class BSPrim : PhysicsActor
             return false;
         }
     }
-    public override bool FloatOnWater { 
-        set { _floatOnWater = value; } 
+    public override bool FloatOnWater {
+        set {
+            _floatOnWater = value;
+            PhysicsScene.TaintedObject("BSPrim.setFloatOnWater", delegate()
+            {
+                if (_floatOnWater)
+                    CurrentCollisionFlags = BulletSimAPI.AddToCollisionFlags2(PhysBody.ptr, CollisionFlags.BS_FLOATS_ON_WATER);
+                else
+                    CurrentCollisionFlags = BulletSimAPI.RemoveFromCollisionFlags2(PhysBody.ptr, CollisionFlags.BS_FLOATS_ON_WATER);
+            });
+        }
     }
-    public override OMV.Vector3 RotationalVelocity { 
+    public override OMV.Vector3 RotationalVelocity {
         get {
             /*
             OMV.Vector3 pv = OMV.Vector3.Zero;
@@ -552,58 +844,76 @@ public sealed class BSPrim : PhysicsActor
              */
 
             return _rotationalVelocity;
-        } 
+        }
         set {
             _rotationalVelocity = value;
             // m_log.DebugFormat("{0}: RotationalVelocity={1}", LogHeader, _rotationalVelocity);
-            _scene.TaintedObject("BSPrim.setRotationalVelocity", delegate()
+            PhysicsScene.TaintedObject("BSPrim.setRotationalVelocity", delegate()
             {
-                // DetailLog("{0},BSPrim.SetRotationalVel,taint,rotvel={1}", LocalID, _rotationalVelocity);
-                BulletSimAPI.SetObjectAngularVelocity(_scene.WorldID, LocalID, _rotationalVelocity);
+                DetailLog("{0},BSPrim.SetRotationalVel,taint,rotvel={1}", LocalID, _rotationalVelocity);
+                BulletSimAPI.SetAngularVelocity2(PhysBody.ptr, _rotationalVelocity);
             });
-        } 
+        }
+    }
+    public override OMV.Vector3 ForceRotationalVelocity {
+        get {
+            return _rotationalVelocity;
+        }
+        set {
+            _rotationalVelocity = value;
+            BulletSimAPI.SetAngularVelocity2(PhysBody.ptr, _rotationalVelocity);
+        }
     }
-    public override bool Kinematic { 
-        get { return _kinematic; } 
-        set { _kinematic = value; 
+    public override bool Kinematic {
+        get { return _kinematic; }
+        set { _kinematic = value;
             // m_log.DebugFormat("{0}: Kinematic={1}", LogHeader, _kinematic);
-        } 
+        }
     }
-    public override float Buoyancy { 
-        get { return _buoyancy; } 
+    public override float Buoyancy {
+        get { return _buoyancy; }
         set {
             _buoyancy = value;
-            _scene.TaintedObject("BSPrim.setBuoyancy", delegate()
+            PhysicsScene.TaintedObject("BSPrim.setBuoyancy", delegate()
             {
-                // DetailLog("{0},BSPrim.SetBuoyancy,taint,buoy={1}", LocalID, _buoyancy);
-                BulletSimAPI.SetObjectBuoyancy(_scene.WorldID, _localID, _buoyancy);
+                ForceBuoyancy = _buoyancy;
             });
-        } 
+        }
+    }
+    public override float ForceBuoyancy {
+        get { return _buoyancy; }
+        set {
+            _buoyancy = value;
+            // DetailLog("{0},BSPrim.setForceBuoyancy,taint,buoy={1}", LocalID, _buoyancy);
+            // Buoyancy is faked by changing the gravity applied to the object
+            float grav = PhysicsScene.Params.gravity * (1f - _buoyancy);
+            BulletSimAPI.SetGravity2(PhysBody.ptr, new OMV.Vector3(0f, 0f, grav));
+        }
     }
 
     // Used for MoveTo
-    public override OMV.Vector3 PIDTarget { 
-        set { _PIDTarget = value; } 
+    public override OMV.Vector3 PIDTarget {
+        set { _PIDTarget = value; }
     }
-    public override bool PIDActive { 
-        set { _usePID = value; } 
+    public override bool PIDActive {
+        set { _usePID = value; }
     }
-    public override float PIDTau { 
-        set { _PIDTau = value; } 
+    public override float PIDTau {
+        set { _PIDTau = value; }
     }
 
     // Used for llSetHoverHeight and maybe vehicle height
     // Hover Height will override MoveTo target's Z
-    public override bool PIDHoverActive { 
+    public override bool PIDHoverActive {
         set { _useHoverPID = value; }
     }
-    public override float PIDHoverHeight { 
+    public override float PIDHoverHeight {
         set { _PIDHoverHeight = value; }
     }
-    public override PIDHoverType PIDHoverType { 
+    public override PIDHoverType PIDHoverType {
         set { _PIDHoverType = value; }
     }
-    public override float PIDHoverTau { 
+    public override float PIDHoverTau {
         set { _PIDHoverTao = value; }
     }
 
@@ -615,6 +925,9 @@ public sealed class BSPrim : PhysicsActor
 
     private List<OMV.Vector3> m_accumulatedForces = new List<OMV.Vector3>();
     public override void AddForce(OMV.Vector3 force, bool pushforce) {
+        AddForce(force, pushforce, false);
+    }
+    public void AddForce(OMV.Vector3 force, bool pushforce, bool inTaintTime) {
         // for an object, doesn't matter if force is a pushforce or not
         if (force.IsFinite())
         {
@@ -624,56 +937,78 @@ public sealed class BSPrim : PhysicsActor
         }
         else
         {
-            m_log.WarnFormat("{0}: Got a NaN force applied to a Character", LogHeader);
+            m_log.WarnFormat("{0}: Got a NaN force applied to a prim. LocalID={1}", LogHeader, LocalID);
             return;
         }
-        _scene.TaintedObject("BSPrim.AddForce", delegate()
+        PhysicsScene.TaintedObject(inTaintTime, "BSPrim.AddForce", delegate()
         {
             OMV.Vector3 fSum = OMV.Vector3.Zero;
             lock (m_accumulatedForces)
             {
+                // Sum the accumulated additional forces for one big force to apply once.
                 foreach (OMV.Vector3 v in m_accumulatedForces)
                 {
                     fSum += v;
                 }
                 m_accumulatedForces.Clear();
             }
-            // DetailLog("{0},BSPrim.AddObjectForce,taint,force={1}", LocalID, _force);
-            BulletSimAPI.AddObjectForce2(Body.Ptr, fSum);
+            DetailLog("{0},BSPrim.AddForce,taint,force={1}", LocalID, fSum);
+            if (fSum != OMV.Vector3.Zero)
+                BulletSimAPI.ApplyCentralForce2(PhysBody.ptr, fSum);
         });
     }
 
-    public override void AddAngularForce(OMV.Vector3 force, bool pushforce) { 
-        // DetailLog("{0},BSPrim.AddAngularForce,call,angForce={1},push={2}", LocalID, force, pushforce);
-        // m_log.DebugFormat("{0}: AddAngularForce. f={1}, push={2}", LogHeader, force, pushforce);
+    private List<OMV.Vector3> m_accumulatedAngularForces = new List<OMV.Vector3>();
+    public override void AddAngularForce(OMV.Vector3 force, bool pushforce) {
+        AddAngularForce(force, pushforce, false);
     }
-    public override void SetMomentum(OMV.Vector3 momentum) { 
-        // DetailLog("{0},BSPrim.SetMomentum,call,mom={1}", LocalID, momentum);
-    }
-    public override void SubscribeEvents(int ms) { 
-        _subscribedEventsMs = ms;
-        if (ms > 0)
+    public void AddAngularForce(OMV.Vector3 force, bool pushforce, bool inTaintTime)
+    {
+        if (force.IsFinite())
         {
-            // make sure first collision happens
-            _nextCollisionOkTime = Util.EnvironmentTickCount() - _subscribedEventsMs;
-
-            Scene.TaintedObject("BSPrim.SubscribeEvents", delegate()
-            {
-                BulletSimAPI.AddToCollisionFlags2(Body.Ptr, CollisionFlags.BS_SUBSCRIBE_COLLISION_EVENTS);
-            });
+            // _force += force;
+            lock (m_accumulatedAngularForces)
+                m_accumulatedAngularForces.Add(new OMV.Vector3(force));
         }
-    }
-    public override void UnSubscribeEvents() { 
-        _subscribedEventsMs = 0;
-        Scene.TaintedObject("BSPrim.UnSubscribeEvents", delegate()
+        else
         {
-            BulletSimAPI.RemoveFromCollisionFlags2(Body.Ptr, CollisionFlags.BS_SUBSCRIBE_COLLISION_EVENTS);
+            m_log.WarnFormat("{0}: Got a NaN force applied to a prim. LocalID={1}", LogHeader, LocalID);
+            return;
+        }
+        PhysicsScene.TaintedObject(inTaintTime, "BSPrim.AddAngularForce", delegate()
+        {
+            OMV.Vector3 fSum = OMV.Vector3.Zero;
+            lock (m_accumulatedAngularForces)
+            {
+                // Sum the accumulated additional forces for one big force to apply once.
+                foreach (OMV.Vector3 v in m_accumulatedAngularForces)
+                {
+                    fSum += v;
+                }
+                m_accumulatedAngularForces.Clear();
+            }
+            DetailLog("{0},BSPrim.AddAngularForce,taint,aForce={1}", LocalID, fSum);
+            if (fSum != OMV.Vector3.Zero)
+            {
+                BulletSimAPI.ApplyTorque2(PhysBody.ptr, fSum);
+                _torque = fSum;
+            }
         });
     }
-    public override bool SubscribedEvents() { 
-        return (_subscribedEventsMs > 0);
+    // A torque impulse.
+    public void ApplyTorqueImpulse(OMV.Vector3 impulse, bool inTaintTime)
+    {
+        OMV.Vector3 applyImpulse = impulse;
+        PhysicsScene.TaintedObject(inTaintTime, "BSPrim.ApplyTorqueImpulse", delegate()
+        {
+            DetailLog("{0},BSPrim.ApplyTorqueImpulse,taint,tImpulse={1}", LocalID, applyImpulse);
+            BulletSimAPI.ApplyTorqueImpulse2(PhysBody.ptr, applyImpulse);
+        });
     }
 
+    public override void SetMomentum(OMV.Vector3 momentum) {
+        // DetailLog("{0},BSPrim.SetMomentum,call,mom={1}", LocalID, momentum);
+    }
     #region Mass Calculation
 
     private float CalculateMass()
@@ -682,19 +1017,19 @@ public sealed class BSPrim : PhysicsActor
         float tmp;
 
         float returnMass = 0;
-        float hollowAmount = (float)_pbs.ProfileHollow * 2.0e-5f;
-        float hollowVolume = hollowAmount * hollowAmount; 
-        
-        switch (_pbs.ProfileShape)
+        float hollowAmount = (float)BaseShape.ProfileHollow * 2.0e-5f;
+        float hollowVolume = hollowAmount * hollowAmount;
+
+        switch (BaseShape.ProfileShape)
         {
             case ProfileShape.Square:
                 // default box
 
-                if (_pbs.PathCurve == (byte)Extrusion.Straight)
+                if (BaseShape.PathCurve == (byte)Extrusion.Straight)
                     {
                     if (hollowAmount > 0.0)
                         {
-                        switch (_pbs.HollowShape)
+                        switch (BaseShape.HollowShape)
                             {
                             case HollowShape.Square:
                             case HollowShape.Same:
@@ -718,19 +1053,19 @@ public sealed class BSPrim : PhysicsActor
                         }
                     }
 
-                else if (_pbs.PathCurve == (byte)Extrusion.Curve1)
+                else if (BaseShape.PathCurve == (byte)Extrusion.Curve1)
                     {
-                    //a tube 
+                    //a tube
 
-                    volume *= 0.78539816339e-2f * (float)(200 - _pbs.PathScaleX);
-                    tmp= 1.0f -2.0e-2f * (float)(200 - _pbs.PathScaleY);
+                    volume *= 0.78539816339e-2f * (float)(200 - BaseShape.PathScaleX);
+                    tmp= 1.0f -2.0e-2f * (float)(200 - BaseShape.PathScaleY);
                     volume -= volume*tmp*tmp;
-                    
+
                     if (hollowAmount > 0.0)
                         {
                         hollowVolume *= hollowAmount;
-                        
-                        switch (_pbs.HollowShape)
+
+                        switch (BaseShape.HollowShape)
                             {
                             case HollowShape.Square:
                             case HollowShape.Same:
@@ -755,13 +1090,13 @@ public sealed class BSPrim : PhysicsActor
 
             case ProfileShape.Circle:
 
-                if (_pbs.PathCurve == (byte)Extrusion.Straight)
+                if (BaseShape.PathCurve == (byte)Extrusion.Straight)
                     {
                     volume *= 0.78539816339f; // elipse base
 
                     if (hollowAmount > 0.0)
                         {
-                        switch (_pbs.HollowShape)
+                        switch (BaseShape.HollowShape)
                             {
                             case HollowShape.Same:
                             case HollowShape.Circle:
@@ -783,19 +1118,19 @@ public sealed class BSPrim : PhysicsActor
                         }
                     }
 
-                else if (_pbs.PathCurve == (byte)Extrusion.Curve1)
+                else if (BaseShape.PathCurve == (byte)Extrusion.Curve1)
                     {
-                    volume *= 0.61685027506808491367715568749226e-2f * (float)(200 - _pbs.PathScaleX);
-                    tmp = 1.0f - .02f * (float)(200 - _pbs.PathScaleY);
+                    volume *= 0.61685027506808491367715568749226e-2f * (float)(200 - BaseShape.PathScaleX);
+                    tmp = 1.0f - .02f * (float)(200 - BaseShape.PathScaleY);
                     volume *= (1.0f - tmp * tmp);
-                    
+
                     if (hollowAmount > 0.0)
                         {
 
                         // calculate the hollow volume by it's shape compared to the prim shape
                         hollowVolume *= hollowAmount;
 
-                        switch (_pbs.HollowShape)
+                        switch (BaseShape.HollowShape)
                             {
                             case HollowShape.Same:
                             case HollowShape.Circle:
@@ -819,7 +1154,7 @@ public sealed class BSPrim : PhysicsActor
                 break;
 
             case ProfileShape.HalfCircle:
-                if (_pbs.PathCurve == (byte)Extrusion.Curve1)
+                if (BaseShape.PathCurve == (byte)Extrusion.Curve1)
                 {
                 volume *= 0.52359877559829887307710723054658f;
                 }
@@ -827,7 +1162,7 @@ public sealed class BSPrim : PhysicsActor
 
             case ProfileShape.EquilateralTriangle:
 
-                if (_pbs.PathCurve == (byte)Extrusion.Straight)
+                if (BaseShape.PathCurve == (byte)Extrusion.Straight)
                     {
                     volume *= 0.32475953f;
 
@@ -835,7 +1170,7 @@ public sealed class BSPrim : PhysicsActor
                         {
 
                         // calculate the hollow volume by it's shape compared to the prim shape
-                        switch (_pbs.HollowShape)
+                        switch (BaseShape.HollowShape)
                             {
                             case HollowShape.Same:
                             case HollowShape.Triangle:
@@ -860,11 +1195,11 @@ public sealed class BSPrim : PhysicsActor
                         volume *= (1.0f - hollowVolume);
                         }
                     }
-                else if (_pbs.PathCurve == (byte)Extrusion.Curve1)
+                else if (BaseShape.PathCurve == (byte)Extrusion.Curve1)
                     {
                     volume *= 0.32475953f;
-                    volume *= 0.01f * (float)(200 - _pbs.PathScaleX);
-                    tmp = 1.0f - .02f * (float)(200 - _pbs.PathScaleY);
+                    volume *= 0.01f * (float)(200 - BaseShape.PathScaleX);
+                    tmp = 1.0f - .02f * (float)(200 - BaseShape.PathScaleY);
                     volume *= (1.0f - tmp * tmp);
 
                     if (hollowAmount > 0.0)
@@ -872,7 +1207,7 @@ public sealed class BSPrim : PhysicsActor
 
                         hollowVolume *= hollowAmount;
 
-                        switch (_pbs.HollowShape)
+                        switch (BaseShape.HollowShape)
                             {
                             case HollowShape.Same:
                             case HollowShape.Triangle:
@@ -912,26 +1247,26 @@ public sealed class BSPrim : PhysicsActor
         float profileBegin;
         float profileEnd;
 
-        if (_pbs.PathCurve == (byte)Extrusion.Straight || _pbs.PathCurve == (byte)Extrusion.Flexible)
+        if (BaseShape.PathCurve == (byte)Extrusion.Straight || BaseShape.PathCurve == (byte)Extrusion.Flexible)
             {
-            taperX1 = _pbs.PathScaleX * 0.01f;
+            taperX1 = BaseShape.PathScaleX * 0.01f;
             if (taperX1 > 1.0f)
                 taperX1 = 2.0f - taperX1;
             taperX = 1.0f - taperX1;
 
-            taperY1 = _pbs.PathScaleY * 0.01f;
+            taperY1 = BaseShape.PathScaleY * 0.01f;
             if (taperY1 > 1.0f)
                 taperY1 = 2.0f - taperY1;
             taperY = 1.0f - taperY1;
             }
         else
             {
-            taperX = _pbs.PathTaperX * 0.01f;
+            taperX = BaseShape.PathTaperX * 0.01f;
             if (taperX < 0.0f)
                 taperX = -taperX;
             taperX1 = 1.0f - taperX;
 
-            taperY = _pbs.PathTaperY * 0.01f;
+            taperY = BaseShape.PathTaperY * 0.01f;
             if (taperY < 0.0f)
                 taperY = -taperY;
             taperY1 = 1.0f - taperY;
@@ -941,20 +1276,18 @@ public sealed class BSPrim : PhysicsActor
 
         volume *= (taperX1 * taperY1 + 0.5f * (taperX1 * taperY + taperX * taperY1) + 0.3333333333f * taperX * taperY);
 
-        pathBegin = (float)_pbs.PathBegin * 2.0e-5f;
-        pathEnd = 1.0f - (float)_pbs.PathEnd * 2.0e-5f;
+        pathBegin = (float)BaseShape.PathBegin * 2.0e-5f;
+        pathEnd = 1.0f - (float)BaseShape.PathEnd * 2.0e-5f;
         volume *= (pathEnd - pathBegin);
 
         // this is crude aproximation
-        profileBegin = (float)_pbs.ProfileBegin * 2.0e-5f;
-        profileEnd = 1.0f - (float)_pbs.ProfileEnd * 2.0e-5f;
+        profileBegin = (float)BaseShape.ProfileBegin * 2.0e-5f;
+        profileEnd = 1.0f - (float)BaseShape.ProfileEnd * 2.0e-5f;
         volume *= (profileEnd - profileBegin);
 
         returnMass = _density * volume;
 
-        /*
-         * This change means each object keeps its own mass and the Mass property
-         * will return the sum if we're part of a linkset.
+        /* Comment out code that computes the mass of the linkset. That is done in the Linkset class.
         if (IsRootOfLinkset)
         {
             foreach (BSPrim prim in _childrenPrims)
@@ -967,296 +1300,42 @@ public sealed class BSPrim : PhysicsActor
         if (returnMass <= 0)
             returnMass = 0.0001f;
 
-        if (returnMass > _scene.MaximumObjectMass)
-            returnMass = _scene.MaximumObjectMass;
+        if (returnMass > PhysicsScene.MaximumObjectMass)
+            returnMass = PhysicsScene.MaximumObjectMass;
 
         return returnMass;
     }// end CalculateMass
     #endregion Mass Calculation
 
-    // Create the geometry information in Bullet for later use
-    // The objects needs a hull if it's physical otherwise a mesh is enough
-    // No locking here because this is done when we know physics is not simulating
-    // if 'forceRebuild' is true, the geometry is rebuilt. Otherwise a previously built version is used
-    // Returns 'true' if the geometry was rebuilt
-    private bool CreateGeom(bool forceRebuild)
-    {
-        // the mesher thought this was too simple to mesh. Use a native Bullet collision shape.
-        bool ret = false;
-        if (!_scene.NeedsMeshing(_pbs))
-        {
-            if (_pbs.ProfileShape == ProfileShape.HalfCircle && _pbs.PathCurve == (byte)Extrusion.Curve1)
-            {
-                // if (_size.X == _size.Y && _size.Y == _size.Z && _size.X == _size.Z)
-                // {
-                    // m_log.DebugFormat("{0}: CreateGeom: Defaulting to sphere of size {1}", LogHeader, _size);
-                    if (forceRebuild || (_shapeType != ShapeData.PhysicsShapeType.SHAPE_SPHERE))
-                    {
-                        // DetailLog("{0},BSPrim.CreateGeom,sphere (force={1}", LocalID, forceRebuild);
-                        _shapeType = ShapeData.PhysicsShapeType.SHAPE_SPHERE;
-                        // Bullet native objects are scaled by the Bullet engine so pass the size in
-                        _scale = _size;
-                        // TODO: do we need to check for and destroy a mesh or hull that might have been left from before?
-                        ret = true;
-                    }
-                // }
-            }
-            else
-            {
-                // m_log.DebugFormat("{0}: CreateGeom: Defaulting to box. lid={1}, type={2}, size={3}", LogHeader, LocalID, _shapeType, _size);
-                if (forceRebuild || (_shapeType != ShapeData.PhysicsShapeType.SHAPE_BOX))
-                {
-                    // DetailLog("{0},BSPrim.CreateGeom,box (force={1})", LocalID, forceRebuild);
-                    _shapeType = ShapeData.PhysicsShapeType.SHAPE_BOX;
-                    _scale = _size;
-                    // TODO: do we need to check for and destroy a mesh or hull that might have been left from before?
-                    ret = true;
-                }
-            }
-        }
-        else
-        {
-            if (IsPhysical)
-            {
-                if (forceRebuild || _hullKey == 0)
-                {
-                    // physical objects require a hull for interaction.
-                    // This will create the mesh if it doesn't already exist
-                    CreateGeomHull();
-                    ret = true;
-                }
-            }
-            else
-            {
-                if (forceRebuild || _meshKey == 0)
-                {
-                    // Static (non-physical) objects only need a mesh for bumping into
-                    CreateGeomMesh();
-                    ret = true;
-                }
-            }
-        }
-        return ret;
-    }
-
-    // No locking here because this is done when we know physics is not simulating
-    private void CreateGeomMesh()
-    {
-        float lod = _pbs.SculptEntry ? _scene.SculptLOD : _scene.MeshLOD;
-        ulong newMeshKey = (ulong)_pbs.GetMeshKey(_size, lod);
-        // m_log.DebugFormat("{0}: CreateGeomMesh: lID={1}, oldKey={2}, newKey={3}", LogHeader, _localID, _meshKey, newMeshKey);
-
-        // if this new shape is the same as last time, don't recreate the mesh
-        if (_meshKey == newMeshKey) return;
-
-        // DetailLog("{0},BSPrim.CreateGeomMesh,create,key={1}", LocalID, newMeshKey);
-        // Since we're recreating new, get rid of any previously generated shape
-        if (_meshKey != 0)
-        {
-            // m_log.DebugFormat("{0}: CreateGeom: deleting old mesh. lID={1}, Key={2}", LogHeader, _localID, _meshKey);
-            // DetailLog("{0},BSPrim.CreateGeomMesh,deleteOld,key={1}", LocalID, _meshKey);
-            BulletSimAPI.DestroyMesh(_scene.WorldID, _meshKey);
-            _mesh = null;
-            _meshKey = 0;
-        }
-
-        _meshKey = newMeshKey;
-        // always pass false for physicalness as this creates some sort of bounding box which we don't need
-        _mesh = _scene.mesher.CreateMesh(_avName, _pbs, _size, lod, false);
-
-        int[] indices = _mesh.getIndexListAsInt();
-        List<OMV.Vector3> vertices = _mesh.getVertexList();
-
-        float[] verticesAsFloats = new float[vertices.Count * 3];
-        int vi = 0;
-        foreach (OMV.Vector3 vv in vertices)
-        {
-            verticesAsFloats[vi++] = vv.X;
-            verticesAsFloats[vi++] = vv.Y;
-            verticesAsFloats[vi++] = vv.Z;
-        }
-
-        // m_log.DebugFormat("{0}: CreateGeomMesh: calling CreateMesh. lid={1}, key={2}, indices={3}, vertices={4}", 
-        //                  LogHeader, _localID, _meshKey, indices.Length, vertices.Count);
-        BulletSimAPI.CreateMesh(_scene.WorldID, _meshKey, indices.GetLength(0), indices, 
-                                                        vertices.Count, verticesAsFloats);
-
-        _shapeType = ShapeData.PhysicsShapeType.SHAPE_MESH;
-        // meshes are already scaled by the meshmerizer
-        _scale = new OMV.Vector3(1f, 1f, 1f);
-        // DetailLog("{0},BSPrim.CreateGeomMesh,done", LocalID);
-        return;
-    }
-
-    // No locking here because this is done when we know physics is not simulating
-    private void CreateGeomHull()
+    // Rebuild the geometry and object.
+    // This is called when the shape changes so we need to recreate the mesh/hull.
+    // Called at taint-time!!!
+    private void CreateGeomAndObject(bool forceRebuild)
     {
-        float lod = _pbs.SculptEntry ? _scene.SculptLOD : _scene.MeshLOD;
-        ulong newHullKey = (ulong)_pbs.GetMeshKey(_size, lod);
-        // m_log.DebugFormat("{0}: CreateGeomHull: lID={1}, oldKey={2}, newKey={3}", LogHeader, _localID, _hullKey, newHullKey);
-
-        // if the hull hasn't changed, don't rebuild it
-        if (newHullKey == _hullKey) return;
-
-        // DetailLog("{0},BSPrim.CreateGeomHull,create,oldKey={1},newKey={2}", LocalID, _hullKey, newHullKey);
-        
-        // Since we're recreating new, get rid of any previously generated shape
-        if (_hullKey != 0)
-        {
-            // m_log.DebugFormat("{0}: CreateGeom: deleting old hull. Key={1}", LogHeader, _hullKey);
-            // DetailLog("{0},BSPrim.CreateGeomHull,deleteOldHull,key={1}", LocalID, _hullKey);
-            BulletSimAPI.DestroyHull(_scene.WorldID, _hullKey);
-            _hullKey = 0;
-        }
-
-        _hullKey = newHullKey;
-
-        // Make sure the underlying mesh exists and is correct
-        CreateGeomMesh();
-
-        int[] indices = _mesh.getIndexListAsInt();
-        List<OMV.Vector3> vertices = _mesh.getVertexList();
-
-        //format conversion from IMesh format to DecompDesc format
-        List<int> convIndices = new List<int>();
-        List<float3> convVertices = new List<float3>();
-        for (int ii = 0; ii < indices.GetLength(0); ii++)
-        {
-            convIndices.Add(indices[ii]);
-        }
-        foreach (OMV.Vector3 vv in vertices)
+        // If this prim is part of a linkset, we must remove and restore the physical
+        //    links if the body is rebuilt.
+        bool needToRestoreLinkset = false;
+
+        // Create the correct physical representation for this type of object.
+        // Updates BSBody and BSShape with the new information.
+        // Ignore 'forceRebuild'. This routine makes the right choices and changes of necessary.
+        // Returns 'true' if either the body or the shape was changed.
+        PhysicsScene.Shapes.GetBodyAndShape(false, PhysicsScene.World, this, null, delegate(BulletBody dBody)
         {
-            convVertices.Add(new float3(vv.X, vv.Y, vv.Z));
-        }
-
-        // setup and do convex hull conversion
-        _hulls = new List<ConvexResult>();
-        DecompDesc dcomp = new DecompDesc();
-        dcomp.mIndices = convIndices;
-        dcomp.mVertices = convVertices;
-        ConvexBuilder convexBuilder = new ConvexBuilder(HullReturn);
-        // create the hull into the _hulls variable
-        convexBuilder.process(dcomp);
-
-        // Convert the vertices and indices for passing to unmanaged.
-        // The hull information is passed as a large floating point array. 
-        // The format is:
-        //  convHulls[0] = number of hulls
-        //  convHulls[1] = number of vertices in first hull
-        //  convHulls[2] = hull centroid X coordinate
-        //  convHulls[3] = hull centroid Y coordinate
-        //  convHulls[4] = hull centroid Z coordinate
-        //  convHulls[5] = first hull vertex X
-        //  convHulls[6] = first hull vertex Y
-        //  convHulls[7] = first hull vertex Z
-        //  convHulls[8] = second hull vertex X
-        //  ...
-        //  convHulls[n] = number of vertices in second hull
-        //  convHulls[n+1] = second hull centroid X coordinate
-        //  ...
-        //
-        // TODO: is is very inefficient. Someday change the convex hull generator to return
-        //   data structures that do not need to be converted in order to pass to Bullet.
-        //   And maybe put the values directly into pinned memory rather than marshaling.
-        int hullCount = _hulls.Count;
-        int totalVertices = 1;          // include one for the count of the hulls
-        foreach (ConvexResult cr in _hulls)
-        {
-            totalVertices += 4;                         // add four for the vertex count and centroid
-            totalVertices += cr.HullIndices.Count * 3;  // we pass just triangles
-        }
-        float[] convHulls = new float[totalVertices];
+            // Called if the current prim body is about to be destroyed.
+            // Remove all the physical dependencies on the old body.
+            // (Maybe someday make the changing of BSShape an event handled by BSLinkset.)
+            needToRestoreLinkset = Linkset.RemoveBodyDependencies(this);
+        });
 
-        convHulls[0] = (float)hullCount;
-        int jj = 1;
-        foreach (ConvexResult cr in _hulls)
+        if (needToRestoreLinkset)
         {
-            // copy vertices for index access
-            float3[] verts = new float3[cr.HullVertices.Count];
-            int kk = 0;
-            foreach (float3 ff in cr.HullVertices)
-            {
-                verts[kk++] = ff;
-            }
-
-            // add to the array one hull's worth of data
-            convHulls[jj++] = cr.HullIndices.Count;
-            convHulls[jj++] = 0f;   // centroid x,y,z
-            convHulls[jj++] = 0f;
-            convHulls[jj++] = 0f;
-            foreach (int ind in cr.HullIndices)
-            {
-                convHulls[jj++] = verts[ind].x;
-                convHulls[jj++] = verts[ind].y;
-                convHulls[jj++] = verts[ind].z;
-            }
+            // If physical body dependencies were removed, restore them
+            Linkset.RestoreBodyDependencies(this);
         }
 
-        // create the hull definition in Bullet
-        // m_log.DebugFormat("{0}: CreateGeom: calling CreateHull. lid={1}, key={2}, hulls={3}", LogHeader, _localID, _hullKey, hullCount);
-        BulletSimAPI.CreateHull(_scene.WorldID, _hullKey, hullCount, convHulls);
-        _shapeType = ShapeData.PhysicsShapeType.SHAPE_HULL;
-        // meshes are already scaled by the meshmerizer
-        _scale = new OMV.Vector3(1f, 1f, 1f);
-        // DetailLog("{0},BSPrim.CreateGeomHull,done", LocalID);
-        return;
-    }
-
-    // Callback from convex hull creater with a newly created hull.
-    // Just add it to the collection of hulls for this shape.
-    private void HullReturn(ConvexResult result)
-    {
-        _hulls.Add(result);
-        return;
-    }
-
-    // Create an object in Bullet if it has not already been created
-    // No locking here because this is done when the physics engine is not simulating
-    // Returns 'true' if an object was actually created.
-    private bool CreateObject()
-    {
-        // this routine is called when objects are rebuilt. 
-
-        // the mesh or hull must have already been created in Bullet
-        ShapeData shape;
-        FillShapeInfo(out shape);
-        // m_log.DebugFormat("{0}: CreateObject: lID={1}, shape={2}", LogHeader, _localID, shape.Type);
-        bool ret = BulletSimAPI.CreateObject(_scene.WorldID, shape);
-
-        // the CreateObject() may have recreated the rigid body. Make sure we have the latest.
-        Body = new BulletBody(LocalID, BulletSimAPI.GetBodyHandle2(_scene.World.Ptr, LocalID));
-
-        return ret;
-    }
-
-    // Copy prim's info into the BulletSim shape description structure
-    public void FillShapeInfo(out ShapeData shape)
-    {
-        shape.ID = _localID;
-        shape.Type = _shapeType;
-        shape.Position = _position;
-        shape.Rotation = _orientation;
-        shape.Velocity = _velocity;
-        shape.Scale = _scale;
-        shape.Mass = _isPhysical ? _mass : 0f;
-        shape.Buoyancy = _buoyancy;
-        shape.HullKey = _hullKey;
-        shape.MeshKey = _meshKey;
-        shape.Friction = _friction;
-        shape.Restitution = _restitution;
-        shape.Collidable = (!IsPhantom) ? ShapeData.numericTrue : ShapeData.numericFalse;
-        shape.Static = _isPhysical ? ShapeData.numericFalse : ShapeData.numericTrue;
-    }
-
-
-    // Rebuild the geometry and object.
-    // This is called when the shape changes so we need to recreate the mesh/hull.
-    // No locking here because this is done when the physics engine is not simulating
-    private void RecreateGeomAndObject()
-    {
-        // m_log.DebugFormat("{0}: RecreateGeomAndObject. lID={1}", LogHeader, _localID);
-        if (CreateGeom(true))
-            CreateObject();
+        // Make sure the properties are set on the new object
+        UpdatePhysicalParameters();
         return;
     }
 
@@ -1277,7 +1356,7 @@ public sealed class BSPrim : PhysicsActor
     const float ACCELERATION_TOLERANCE = 0.01f;
     const float ROTATIONAL_VELOCITY_TOLERANCE = 0.01f;
 
-    public void UpdateProperties(EntityProperties entprop)
+    public override void UpdateProperties(EntityProperties entprop)
     {
         /*
         UpdatedProperties changed = 0;
@@ -1325,7 +1404,7 @@ public sealed class BSPrim : PhysicsActor
         // Don't check for damping here -- it's done in BulletSim and SceneObjectPart.
 
         // Updates only for individual prims and for the root object of a linkset.
-        if (_linkset.IsRoot(this))
+        if (Linkset.IsRoot(this))
         {
             // Assign to the local variables so the normal set action does not happen
             _position = entprop.Position;
@@ -1334,69 +1413,32 @@ public sealed class BSPrim : PhysicsActor
             _acceleration = entprop.Acceleration;
             _rotationalVelocity = entprop.RotationalVelocity;
 
-            // m_log.DebugFormat("{0}: RequestTerseUpdate. id={1}, ch={2}, pos={3}, rot={4}, vel={5}, acc={6}, rvel={7}", 
-            //         LogHeader, LocalID, changed, _position, _orientation, _velocity, _acceleration, _rotationalVelocity);
-            // DetailLog("{0},BSPrim.UpdateProperties,call,pos={1},orient={2},vel={3},accel={4},rotVel={5}",
-            //         LocalID, _position, _orientation, _velocity, _acceleration, _rotationalVelocity);
+            // remember the current and last set values
+            LastEntityProperties = CurrentEntityProperties;
+            CurrentEntityProperties = entprop;
+
+            PositionSanityCheck(true);
+
+            OMV.Vector3 direction = OMV.Vector3.UnitX * _orientation;
+            DetailLog("{0},BSPrim.UpdateProperties,call,pos={1},orient={2},dir={3},vel={4},rotVel={5}",
+                    LocalID, _position, _orientation, direction, _velocity, _rotationalVelocity);
+
+            // BulletSimAPI.DumpRigidBody2(PhysicsScene.World.ptr, BSBody.ptr);   // DEBUG DEBUG DEBUG
 
             base.RequestPhysicsterseUpdate();
         }
             /*
         else
         {
-            // For debugging, we also report the movement of children
+            // For debugging, report the movement of children
             DetailLog("{0},BSPrim.UpdateProperties,child,pos={1},orient={2},vel={3},accel={4},rotVel={5}",
-                    LocalID, entprop.Position, entprop.Rotation, entprop.Velocity, 
+                    LocalID, entprop.Position, entprop.Rotation, entprop.Velocity,
                     entprop.Acceleration, entprop.RotationalVelocity);
         }
              */
-    }
-
-    // I've collided with something
-    CollisionEventUpdate collisionCollection;
-    public void Collide(uint collidingWith, ActorTypes type, OMV.Vector3 contactPoint, OMV.Vector3 contactNormal, float pentrationDepth)
-    {
-        // m_log.DebugFormat("{0}: Collide: ms={1}, id={2}, with={3}", LogHeader, _subscribedEventsMs, LocalID, collidingWith);
-
-        // The following lines make IsColliding() and IsCollidingGround() work
-        _collidingStep = _scene.SimulationStep;
-        if (collidingWith == BSScene.TERRAIN_ID || collidingWith == BSScene.GROUNDPLANE_ID)
-        {
-            _collidingGroundStep = _scene.SimulationStep;
-        }
-
-        // DetailLog("{0},BSPrim.Collison,call,with={1}", LocalID, collidingWith);
-
-        // if someone is subscribed to collision events....
-        if (_subscribedEventsMs != 0) {
-            // throttle the collisions to the number of milliseconds specified in the subscription
-            int nowTime = _scene.SimulationNowTime;
-            if (nowTime >= _nextCollisionOkTime) {
-                _nextCollisionOkTime = nowTime + _subscribedEventsMs;
 
-                if (collisionCollection == null)
-                    collisionCollection = new CollisionEventUpdate();
-                collisionCollection.AddCollider(collidingWith, new ContactPoint(contactPoint, contactNormal, pentrationDepth));
-            }
-        }
-    }
-
-    // The scene is telling us it's time to pass our collected collisions into the simulator
-    public void SendCollisions()
-    {
-        if (collisionCollection != null && collisionCollection.Count > 0)
-        {
-            base.SendCollisionUpdate(collisionCollection);
-            // The collisionCollection structure is passed around in the simulator.
-            // Make sure we don't have a handle to that one and that a new one is used next time.
-            collisionCollection = null;
-        }
-    }
-
-    // Invoke the detailed logger and output something if it's enabled.
-    private void DetailLog(string msg, params Object[] args)
-    {
-        Scene.PhysicsLogging.Write(msg, args);
+        // The linkset implimentation might want to know about this.
+        Linkset.UpdateProperties(this);
     }
 }
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs b/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
index a31c578..740f339 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
@@ -39,96 +39,88 @@ using log4net;
 using OpenMetaverse;
 
 // TODOs for BulletSim (for BSScene, BSPrim, BSCharacter and BulletSim)
-// Debug linkset 
-// Test with multiple regions in one simulator 
-// Adjust character capsule size when height is adjusted (ScenePresence.SetHeight)
-// Test sculpties
+// Test sculpties (verified that they don't work)
 // Compute physics FPS reasonably
 // Based on material, set density and friction
-// More efficient memory usage when passing hull information from BSPrim to BulletSim
-// Move all logic out of the C++ code and into the C# code for easier future modifications.
+// Don't use constraints in linksets of non-physical objects. Means having to move children manually.
 // Four states of prim: Physical, regular, phantom and selected. Are we modeling these correctly?
 //     In SL one can set both physical and phantom (gravity, does not effect others, makes collisions with ground)
 //     At the moment, physical and phantom causes object to drop through the terrain
 // Physical phantom objects and related typing (collision options )
-// Use collision masks for collision with terrain and phantom objects 
 // Check out llVolumeDetect. Must do something for that.
+// Use collision masks for collision with terrain and phantom objects
+// More efficient memory usage when passing hull information from BSPrim to BulletSim
 // Should prim.link() and prim.delink() membership checking happen at taint time?
-// changing the position and orientation of a linked prim must rebuild the constraint with the root.
-// Mesh sharing. Use meshHash to tell if we already have a hull of that shape and only create once
+// Mesh sharing. Use meshHash to tell if we already have a hull of that shape and only create once.
 // Do attachments need to be handled separately? Need collision events. Do not collide with VolumeDetect
-// Implement the genCollisions feature in BulletSim::SetObjectProperties (don't pass up unneeded collisions)
 // Implement LockAngularMotion
 // Decide if clearing forces is the right thing to do when setting position (BulletSim::SetObjectTranslation)
-// Does NeedsMeshing() really need to exclude all the different shapes?
 // Remove mesh and Hull stuff. Use mesh passed to bullet and use convexdecom from bullet.
 // Add PID movement operations. What does ScenePresence.MoveToTarget do?
 // Check terrain size. 128 or 127?
 // Raycast
-// 
+//
 namespace OpenSim.Region.Physics.BulletSPlugin
 {
-public class BSScene : PhysicsScene, IPhysicsParameters
+public sealed class BSScene : PhysicsScene, IPhysicsParameters
 {
     private static readonly ILog m_log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
     private static readonly string LogHeader = "[BULLETS SCENE]";
 
-    public void DebugLog(string mm, params Object[] xx) { if (ShouldDebugLog) m_log.DebugFormat(mm, xx); }
+    // The name of the region we're working for.
+    public string RegionName { get; private set; }
 
     public string BulletSimVersion = "?";
 
-    private Dictionary<uint, BSCharacter> m_avatars = new Dictionary<uint, BSCharacter>();
-    private Dictionary<uint, BSPrim> m_prims = new Dictionary<uint, BSPrim>();
-    private HashSet<BSCharacter> m_avatarsWithCollisions = new HashSet<BSCharacter>();
-    private HashSet<BSPrim> m_primsWithCollisions = new HashSet<BSPrim>();
-    private List<BSPrim> m_vehicles = new List<BSPrim>();
-    private float[] m_heightMap;
-    private float m_waterLevel;
-    private uint m_worldID;
-    public uint WorldID { get { return m_worldID; } }
+    public Dictionary<uint, BSPhysObject> PhysObjects;
+    public BSShapeCollection Shapes;
 
-    // let my minuions use my logger
-    public ILog Logger { get { return m_log; } }
+    // Keeping track of the objects with collisions so we can report begin and end of a collision
+    public HashSet<BSPhysObject> ObjectsWithCollisions = new HashSet<BSPhysObject>();
+    public HashSet<BSPhysObject> ObjectsWithNoMoreCollisions = new HashSet<BSPhysObject>();
+    // Keep track of all the avatars so we can send them a collision event
+    //    every tick so OpenSim will update its animation.
+    private HashSet<BSPhysObject> m_avatars = new HashSet<BSPhysObject>();
 
-    private bool m_initialized = false;
+    // List of all the objects that have vehicle properties and should be called
+    //    to update each physics step.
+    private List<BSPhysObject> m_vehicles = new List<BSPhysObject>();
 
-    private int m_detailedStatsStep = 0;
+    // let my minuions use my logger
+    public ILog Logger { get { return m_log; } }
 
     public IMesher mesher;
-    private float m_meshLOD;
-    public float MeshLOD
-    {
-        get { return m_meshLOD; }
-    }
-    private float m_sculptLOD;
-    public float SculptLOD
-    {
-        get { return m_sculptLOD; }
-    }
+    // Level of Detail values kept as float because that's what the Meshmerizer wants
+    public float MeshLOD { get; private set; }
+    public float MeshMegaPrimLOD { get; private set; }
+    public float MeshMegaPrimThreshold { get; private set; }
+    public float SculptLOD { get; private set; }
 
-    private BulletSim m_worldSim;
-    public BulletSim World
-    {
-        get { return m_worldSim; }
-    }
-    private BSConstraintCollection m_constraintCollection;
-    public BSConstraintCollection Constraints
-    { 
-        get { return m_constraintCollection; }
-    }
+    public uint WorldID { get; private set; }
+    public BulletSim World { get; private set; }
+
+    // All the constraints that have been allocated in this instance.
+    public BSConstraintCollection Constraints { get; private set; }
 
+    // Simulation parameters
     private int m_maxSubSteps;
     private float m_fixedTimeStep;
     private long m_simulationStep = 0;
     public long SimulationStep { get { return m_simulationStep; } }
-
-    public float LastSimulatedTimestep { get; private set; }
+    private int m_taintsToProcessPerStep;
 
     // A value of the time now so all the collision and update routines do not have to get their own
     // Set to 'now' just before all the prims and actors are called for collisions and updates
-    private int m_simulationNowTime;
-    public int SimulationNowTime { get { return m_simulationNowTime; } }
+    public int SimulationNowTime { get; private set; }
+
+    // True if initialized and ready to do simulation steps
+    private bool m_initialized = false;
+
+    // Flag which is true when processing taints.
+    // Not guaranteed to be correct all the time (don't depend on this) but good for debugging.
+    public bool InTaintTime { get; private set; }
 
+    // Pinned memory used to pass step information between managed and unmanaged
     private int m_maxCollisionsPerFrame;
     private CollisionDesc[] m_collisionArray;
     private GCHandle m_collisionArrayPinnedHandle;
@@ -137,14 +129,19 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     private EntityProperties[] m_updateArray;
     private GCHandle m_updateArrayPinnedHandle;
 
-    private bool _meshSculptedPrim = true;         // cause scuplted prims to get meshed
-    private bool _forceSimplePrimMeshing = false;   // if a cube or sphere, let Bullet do internal shapes
+    public bool ShouldMeshSculptedPrim { get; private set; }   // cause scuplted prims to get meshed
+    public bool ShouldForceSimplePrimMeshing { get; private set; }   // if a cube or sphere, let Bullet do internal shapes
+    public bool ShouldUseHullsForPhysicalObjects { get; private set; }   // 'true' if should create hulls for physical objects
 
     public float PID_D { get; private set; }    // derivative
     public float PID_P { get; private set; }    // proportional
 
     public const uint TERRAIN_ID = 0;       // OpenSim senses terrain with a localID of zero
     public const uint GROUNDPLANE_ID = 1;
+    public const uint CHILDTERRAIN_ID = 2;  // Terrain allocated based on our mega-prim childre start here
+
+    private float m_waterLevel;
+    public BSTerrainManager TerrainManager { get; private set; }
 
     public ConfigurationParameters Params
     {
@@ -154,13 +151,18 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     {
         get { return new Vector3(0f, 0f, Params.gravity); }
     }
-
-    private float m_maximumObjectMass;
-    public float MaximumObjectMass
+    // Just the Z value of the gravity
+    public float DefaultGravityZ
     {
-        get { return m_maximumObjectMass; }
+        get { return Params.gravity; }
     }
 
+    public float MaximumObjectMass { get; private set; }
+
+    // When functions in the unmanaged code must be called, it is only
+    //   done at a known time just before the simulation step. The taint
+    //   system saves all these function calls and executes them in
+    //   order before the simulation.
     public delegate void TaintCallback();
     private struct TaintCallbackEntry
     {
@@ -172,15 +174,19 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             callback = c;
         }
     }
-    private List<TaintCallbackEntry> _taintedObjects;
-    private Object _taintLock = new Object();
+    private Object _taintLock = new Object();   // lock for using the next object
+    private List<TaintCallbackEntry> _taintOperations;
+    private Dictionary<string, TaintCallbackEntry> _postTaintOperations;
+    private List<TaintCallbackEntry> _postStepOperations;
 
     // A pointer to an instance if this structure is passed to the C++ code
+    // Used to pass basic configuration values to the unmanaged code.
     ConfigurationParameters[] m_params;
     GCHandle m_paramsHandle;
 
-    public bool ShouldDebugLog { get; private set; }
-
+    // Handle to the callback used by the unmanaged code to call into the managed code.
+    // Used for debug logging.
+    // Need to store the handle in a persistant variable so it won't be freed.
     private BulletSimAPI.DebugLogCallback m_DebugLogCallbackHandle;
 
     // Sometimes you just have to log everything.
@@ -189,17 +195,26 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     private string m_physicsLoggingDir;
     private string m_physicsLoggingPrefix;
     private int m_physicsLoggingFileMinutes;
+    // 'true' of the vehicle code is to log lots of details
+    public bool VehicleLoggingEnabled { get; private set; }
 
-    private bool m_vehicleLoggingEnabled;
-    public bool VehicleLoggingEnabled { get { return m_vehicleLoggingEnabled; } }
-
+    #region Construction and Initialization
     public BSScene(string identifier)
     {
         m_initialized = false;
+        // we are passed the name of the region we're working for.
+        RegionName = identifier;
     }
 
     public override void Initialise(IMesher meshmerizer, IConfigSource config)
     {
+        mesher = meshmerizer;
+        _taintOperations = new List<TaintCallbackEntry>();
+        _postTaintOperations = new Dictionary<string, TaintCallbackEntry>();
+        _postStepOperations = new List<TaintCallbackEntry>();
+        PhysObjects = new Dictionary<uint, BSPhysObject>();
+        Shapes = new BSShapeCollection(this);
+
         // Allocate pinned memory to pass parameters.
         m_params = new ConfigurationParameters[1];
         m_paramsHandle = GCHandle.Alloc(m_params, GCHandleType.Pinned);
@@ -215,7 +230,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
 
         // Enable very detailed logging.
         // By creating an empty logger when not logging, the log message invocation code
-        // can be left in and every call doesn't have to check for null.
+        //     can be left in and every call doesn't have to check for null.
         if (m_physicsLoggingEnabled)
         {
             PhysicsLogging = new Logging.LogWriter(m_physicsLoggingDir, m_physicsLoggingPrefix, m_physicsLoggingFileMinutes);
@@ -225,39 +240,43 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             PhysicsLogging = new Logging.LogWriter();
         }
 
-        // Get the version of the DLL
-        // TODO: this doesn't work yet. Something wrong with marshaling the returned string.
-        // BulletSimVersion = BulletSimAPI.GetVersion();
-        // m_log.WarnFormat("{0}: BulletSim.dll version='{1}'", LogHeader, BulletSimVersion);
-
-        // if Debug, enable logging from the unmanaged code
+        // If Debug logging level, enable logging from the unmanaged code
+        m_DebugLogCallbackHandle = null;
         if (m_log.IsDebugEnabled || PhysicsLogging.Enabled)
         {
             m_log.DebugFormat("{0}: Initialize: Setting debug callback for unmanaged code", LogHeader);
             if (PhysicsLogging.Enabled)
+                // The handle is saved in a variable to make sure it doesn't get freed after this call
                 m_DebugLogCallbackHandle = new BulletSimAPI.DebugLogCallback(BulletLoggerPhysLog);
             else
                 m_DebugLogCallbackHandle = new BulletSimAPI.DebugLogCallback(BulletLogger);
-            // the handle is saved in a variable to make sure it doesn't get freed after this call
-            BulletSimAPI.SetDebugLogCallback(m_DebugLogCallbackHandle);
         }
 
-        _taintedObjects = new List<TaintCallbackEntry>();
+        // Get the version of the DLL
+        // TODO: this doesn't work yet. Something wrong with marshaling the returned string.
+        // BulletSimVersion = BulletSimAPI.GetVersion();
+        // m_log.WarnFormat("{0}: BulletSim.dll version='{1}'", LogHeader, BulletSimVersion);
 
-        mesher = meshmerizer;
-        // The bounding box for the simulated world
-        Vector3 worldExtent = new Vector3(Constants.RegionSize, Constants.RegionSize, 8192f);
+        // The bounding box for the simulated world. The origin is 0,0,0 unless we're
+        //    a child in a mega-region.
+        // Bullet actually doesn't care about the extents of the simulated
+        //    area. It tracks active objects no matter where they are.
+        Vector3 worldExtent = new Vector3(Constants.RegionSize, Constants.RegionSize, Constants.RegionHeight);
 
         // m_log.DebugFormat("{0}: Initialize: Calling BulletSimAPI.Initialize.", LogHeader);
-        m_worldID = BulletSimAPI.Initialize(worldExtent, m_paramsHandle.AddrOfPinnedObject(),
+        World = new BulletSim(0, this, BulletSimAPI.Initialize2(worldExtent, m_paramsHandle.AddrOfPinnedObject(),
                                         m_maxCollisionsPerFrame, m_collisionArrayPinnedHandle.AddrOfPinnedObject(),
-                                        m_maxUpdatesPerFrame, m_updateArrayPinnedHandle.AddrOfPinnedObject());
+                                        m_maxUpdatesPerFrame, m_updateArrayPinnedHandle.AddrOfPinnedObject(),
+                                        m_DebugLogCallbackHandle));
+
+        Constraints = new BSConstraintCollection(World);
 
-        // Initialization to support the transition to a new API which puts most of the logic
-        //   into the C# code so it is easier to modify and add to.
-        m_worldSim = new BulletSim(m_worldID, this, BulletSimAPI.GetSimHandle2(m_worldID));
-        m_constraintCollection = new BSConstraintCollection(World);
+        TerrainManager = new BSTerrainManager(this);
+        TerrainManager.CreateInitialGroundPlaneAndTerrain();
 
+        m_log.WarnFormat("{0} Linksets implemented with {1}", LogHeader, (BSLinkset.LinksetImplementation)Params.linksetImplementation);
+
+        InTaintTime = false;
         m_initialized = true;
     }
 
@@ -281,10 +300,13 @@ public class BSScene : PhysicsScene, IPhysicsParameters
                 // Very detailed logging for physics debugging
                 m_physicsLoggingEnabled = pConfig.GetBoolean("PhysicsLoggingEnabled", false);
                 m_physicsLoggingDir = pConfig.GetString("PhysicsLoggingDir", ".");
-                m_physicsLoggingPrefix = pConfig.GetString("PhysicsLoggingPrefix", "physics-");
+                m_physicsLoggingPrefix = pConfig.GetString("PhysicsLoggingPrefix", "physics-%REGIONNAME%-");
                 m_physicsLoggingFileMinutes = pConfig.GetInt("PhysicsLoggingFileMinutes", 5);
                 // Very detailed logging for vehicle debugging
-                m_vehicleLoggingEnabled = pConfig.GetBoolean("VehicleLoggingEnabled", false);
+                VehicleLoggingEnabled = pConfig.GetBoolean("VehicleLoggingEnabled", false);
+
+                // Do any replacements in the parameters
+                m_physicsLoggingPrefix = m_physicsLoggingPrefix.Replace("%REGIONNAME%", RegionName);
             }
         }
     }
@@ -309,12 +331,50 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     {
         m_log.Debug("[BULLETS UNMANAGED]:" + msg);
     }
-    
+
     // Called directly from unmanaged code so don't do much
     private void BulletLoggerPhysLog(string msg)
     {
-        PhysicsLogging.Write("[BULLETS UNMANAGED]:" + msg);
+        DetailLog("[BULLETS UNMANAGED]:" + msg);
+    }
+
+    public override void Dispose()
+    {
+        // m_log.DebugFormat("{0}: Dispose()", LogHeader);
+
+        // make sure no stepping happens while we're deleting stuff
+        m_initialized = false;
+
+        TerrainManager.ReleaseGroundPlaneAndTerrain();
+
+        foreach (KeyValuePair<uint, BSPhysObject> kvp in PhysObjects)
+        {
+            kvp.Value.Destroy();
+        }
+        PhysObjects.Clear();
+
+        // Now that the prims are all cleaned up, there should be no constraints left
+        if (Constraints != null)
+        {
+            Constraints.Dispose();
+            Constraints = null;
+        }
+
+        if (Shapes != null)
+        {
+            Shapes.Dispose();
+            Shapes = null;
+        }
+
+        // Anything left in the unmanaged code should be cleaned out
+        BulletSimAPI.Shutdown2(World.ptr);
+
+        // Not logging any more
+        PhysicsLogging.Close();
     }
+    #endregion // Construction and Initialization
+
+    #region Prim and Avatar addition and removal
 
     public override PhysicsActor AddAvatar(string avName, Vector3 position, Vector3 size, bool isFlying)
     {
@@ -329,7 +389,13 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         if (!m_initialized) return null;
 
         BSCharacter actor = new BSCharacter(localID, avName, this, position, size, isFlying);
-        lock (m_avatars) m_avatars.Add(localID, actor);
+        lock (PhysObjects) PhysObjects.Add(localID, actor);
+
+        // TODO: Remove kludge someday.
+        // We must generate a collision for avatars whether they collide or not.
+        // This is required by OpenSim to update avatar animations, etc.
+        lock (m_avatars) m_avatars.Add(actor);
+
         return actor;
     }
 
@@ -344,7 +410,9 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         {
             try
             {
-                lock (m_avatars) m_avatars.Remove(actor.LocalID);
+                lock (PhysObjects) PhysObjects.Remove(actor.LocalID);
+                // Remove kludge someday
+                lock (m_avatars) m_avatars.Remove(bsactor);
             }
             catch (Exception e)
             {
@@ -362,11 +430,11 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         BSPrim bsprim = prim as BSPrim;
         if (bsprim != null)
         {
-            // DetailLog("{0},RemovePrim,call", bsprim.LocalID);
+            DetailLog("{0},RemovePrim,call", bsprim.LocalID);
             // m_log.DebugFormat("{0}: RemovePrim. id={1}/{2}", LogHeader, bsprim.Name, bsprim.LocalID);
             try
             {
-                lock (m_prims) m_prims.Remove(bsprim.LocalID);
+                lock (PhysObjects) PhysObjects.Remove(bsprim.LocalID);
             }
             catch (Exception e)
             {
@@ -388,18 +456,21 @@ public class BSScene : PhysicsScene, IPhysicsParameters
 
         if (!m_initialized) return null;
 
-        // DetailLog("{0},AddPrimShape,call", localID);
+        DetailLog("{0},AddPrimShape,call", localID);
 
         BSPrim prim = new BSPrim(localID, primName, this, position, size, rotation, pbs, isPhysical);
-        lock (m_prims) m_prims.Add(localID, prim);
+        lock (PhysObjects) PhysObjects.Add(localID, prim);
         return prim;
     }
 
     // This is a call from the simulator saying that some physical property has been updated.
-    // The BulletSim driver senses the changing of relevant properties so this taint 
+    // The BulletSim driver senses the changing of relevant properties so this taint
     // information call is not needed.
     public override void AddPhysicsActorTaint(PhysicsActor prim) { }
 
+    #endregion // Prim and Avatar addition and removal
+
+    #region Simulation
     // Simulate one timestep
     public override float Simulate(float timeStep)
     {
@@ -408,34 +479,45 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         int collidersCount = 0;
         IntPtr collidersPtr;
 
-        LastSimulatedTimestep = timeStep;
+        int beforeTime = 0;
+        int simTime = 0;
 
         // prevent simulation until we've been initialized
-        if (!m_initialized) return 10.0f;
-
-        int simulateStartTime = Util.EnvironmentTickCount();
+        if (!m_initialized) return 5.0f;
 
         // update the prim states while we know the physics engine is not busy
+        int numTaints = _taintOperations.Count;
         ProcessTaints();
 
         // Some of the prims operate with special vehicle properties
         ProcessVehicles(timeStep);
+        numTaints += _taintOperations.Count;
         ProcessTaints();    // the vehicles might have added taints
 
         // step the physical world one interval
         m_simulationStep++;
         int numSubSteps = 0;
+
         try
         {
-            numSubSteps = BulletSimAPI.PhysicsStep(m_worldID, timeStep, m_maxSubSteps, m_fixedTimeStep,
+            // DumpVehicles();  // DEBUG
+            if (PhysicsLogging.Enabled) beforeTime = Util.EnvironmentTickCount();
+
+            numSubSteps = BulletSimAPI.PhysicsStep2(World.ptr, timeStep, m_maxSubSteps, m_fixedTimeStep,
                         out updatedEntityCount, out updatedEntitiesPtr, out collidersCount, out collidersPtr);
-            // DetailLog("{0},Simulate,call, substeps={1}, updates={2}, colliders={3}", DetailLogZero, numSubSteps, updatedEntityCount, collidersCount); 
+
+            if (PhysicsLogging.Enabled) simTime = Util.EnvironmentTickCountSubtract(beforeTime);
+            DetailLog("{0},Simulate,call, frame={1}, nTaints={2}, simTime={3}, substeps={4}, updates={5}, colliders={6}",
+                        DetailLogZero, m_simulationStep, numTaints, simTime, numSubSteps, updatedEntityCount, collidersCount);
+            // DumpVehicles();  // DEBUG
         }
         catch (Exception e)
         {
-            m_log.WarnFormat("{0},PhysicsStep Exception: substeps={1}, updates={2}, colliders={3}, e={4}", LogHeader, numSubSteps, updatedEntityCount, collidersCount, e);
-            // DetailLog("{0},PhysicsStepException,call, substeps={1}, updates={2}, colliders={3}", DetailLogZero, numSubSteps, updatedEntityCount, collidersCount);
-            // updatedEntityCount = 0;
+            m_log.WarnFormat("{0},PhysicsStep Exception: nTaints={1}, substeps={2}, updates={3}, colliders={4}, e={5}",
+                        LogHeader, numTaints, numSubSteps, updatedEntityCount, collidersCount, e);
+            DetailLog("{0},PhysicsStepException,call, nTaints={1}, substeps={2}, updates={3}, colliders={4}",
+                        DetailLogZero, numTaints, numSubSteps, updatedEntityCount, collidersCount);
+            updatedEntityCount = 0;
             collidersCount = 0;
         }
 
@@ -443,7 +525,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         // Don't have to use the pointers passed back since we know it is the same pinned memory we passed in
 
         // Get a value for 'now' so all the collision and update routines don't have to get their own
-        m_simulationNowTime = Util.EnvironmentTickCount();
+        SimulationNowTime = Util.EnvironmentTickCount();
 
         // If there were collisions, process them by sending the event to the prim.
         // Collisions must be processed before updates.
@@ -462,19 +544,32 @@ public class BSScene : PhysicsScene, IPhysicsParameters
 
         // The above SendCollision's batch up the collisions on the objects.
         //      Now push the collisions into the simulator.
-        foreach (BSPrim bsp in m_primsWithCollisions)
-            bsp.SendCollisions();
-        m_primsWithCollisions.Clear();
-
-        // This is a kludge to get avatar movement updated. 
-        //   Don't send collisions only if there were collisions -- send everytime.
-        //   ODE sends collisions even if there are none and this is used to update
-        //   avatar animations and stuff.
-        // foreach (BSCharacter bsc in m_avatarsWithCollisions)
-        //     bsc.SendCollisions();
-        foreach (KeyValuePair<uint, BSCharacter> kvp in m_avatars)
-            kvp.Value.SendCollisions();
-        m_avatarsWithCollisions.Clear();
+        if (ObjectsWithCollisions.Count > 0)
+        {
+            foreach (BSPhysObject bsp in ObjectsWithCollisions)
+                if (!bsp.SendCollisions())
+                {
+                    // If the object is done colliding, see that it's removed from the colliding list
+                    ObjectsWithNoMoreCollisions.Add(bsp);
+                }
+        }
+
+        // This is a kludge to get avatar movement updates.
+        // The simulator expects collisions for avatars even if there are have been no collisions.
+        //    The event updates avatar animations and stuff.
+        // If you fix avatar animation updates, remove this overhead and let normal collision processing happen.
+        foreach (BSPhysObject bsp in m_avatars)
+            if (!ObjectsWithCollisions.Contains(bsp))   // don't call avatars twice
+                bsp.SendCollisions();
+
+        // Objects that are done colliding are removed from the ObjectsWithCollisions list.
+        // Not done above because it is inside an iteration of ObjectWithCollisions.
+        if (ObjectsWithNoMoreCollisions.Count > 0)
+        {
+            foreach (BSPhysObject po in ObjectsWithNoMoreCollisions)
+                ObjectsWithCollisions.Remove(po);
+            ObjectsWithNoMoreCollisions.Clear();
+        }
 
         // If any of the objects had updated properties, tell the object it has been changed by the physics engine
         if (updatedEntityCount > 0)
@@ -482,320 +577,310 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             for (int ii = 0; ii < updatedEntityCount; ii++)
             {
                 EntityProperties entprop = m_updateArray[ii];
-                BSPrim prim;
-                if (m_prims.TryGetValue(entprop.ID, out prim))
-                {
-                    prim.UpdateProperties(entprop);
-                    continue;
-                }
-                BSCharacter actor;
-                if (m_avatars.TryGetValue(entprop.ID, out actor))
+                BSPhysObject pobj;
+                if (PhysObjects.TryGetValue(entprop.ID, out pobj))
                 {
-                    actor.UpdateProperties(entprop);
-                    continue;
+                    pobj.UpdateProperties(entprop);
                 }
             }
         }
 
-        // If enabled, call into the physics engine to dump statistics
-        if (m_detailedStatsStep > 0)
-        {
-            if ((m_simulationStep % m_detailedStatsStep) == 0)
-            {
-                BulletSimAPI.DumpBulletStatistics();
-            }
-        }
+        ProcessPostStepTaints();
 
-        // this is a waste since the outside routine also calcuates the physics simulation
-        //   period. TODO: There should be a way of computing physics frames from simulator computation.
-        // long simulateTotalTime = Util.EnvironmentTickCountSubtract(simulateStartTime);
-        // return (timeStep * (float)simulateTotalTime);
-
-        // TODO: FIX THIS: fps calculation possibly wrong.
-        // This calculation says 1/timeStep is the ideal frame rate. Any time added to
-        //    that by the physics simulation gives a slower frame rate.
-        long totalSimulationTime = Util.EnvironmentTickCountSubtract(simulateStartTime);
-        if (totalSimulationTime >= timeStep)
-            return 0;
-        return 1f / (timeStep + totalSimulationTime);
+        // This causes the unmanaged code to output ALL the values found in ALL the objects in the world.
+        // Only enable this in a limited test world with few objects.
+        // BulletSimAPI.DumpAllInfo2(World.ptr);    // DEBUG DEBUG DEBUG
+
+        // The physics engine returns the number of milliseconds it simulated this call.
+        // These are summed and normalized to one second and divided by 1000 to give the reported physics FPS.
+        // We multiply by 55 to give a recognizable running rate (55 or less).
+        return numSubSteps * m_fixedTimeStep * 1000 * 55;
+        // return timeStep * 1000 * 55;
     }
 
     // Something has collided
-    private void SendCollision(uint localID, uint collidingWith, Vector3 collidePoint, Vector3 collideNormal, float penitration)
+    private void SendCollision(uint localID, uint collidingWith, Vector3 collidePoint, Vector3 collideNormal, float penetration)
     {
-        if (localID == TERRAIN_ID || localID == GROUNDPLANE_ID)
+        if (localID <= TerrainManager.HighestTerrainID)
         {
             return;         // don't send collisions to the terrain
         }
 
-        ActorTypes type = ActorTypes.Prim;
-        if (collidingWith == TERRAIN_ID || collidingWith == GROUNDPLANE_ID)
-            type = ActorTypes.Ground;
-        else if (m_avatars.ContainsKey(collidingWith))
-            type = ActorTypes.Agent;
-
-        BSPrim prim;
-        if (m_prims.TryGetValue(localID, out prim)) {
-            prim.Collide(collidingWith, type, collidePoint, collideNormal, penitration);
-            m_primsWithCollisions.Add(prim);
+        BSPhysObject collider;
+        if (!PhysObjects.TryGetValue(localID, out collider))
+        {
+            // If the object that is colliding cannot be found, just ignore the collision.
+            DetailLog("{0},BSScene.SendCollision,colliderNotInObjectList,id={1},with={2}", DetailLogZero, localID, collidingWith);
             return;
         }
-        BSCharacter actor;
-        if (m_avatars.TryGetValue(localID, out actor)) {
-            actor.Collide(collidingWith, type, collidePoint, collideNormal, penitration);
-            m_avatarsWithCollisions.Add(actor);
-            return;
+
+        // The terrain is not in the physical object list so 'collidee' can be null when Collide() is called.
+        BSPhysObject collidee = null;
+        PhysObjects.TryGetValue(collidingWith, out collidee);
+
+        // DetailLog("{0},BSScene.SendCollision,collide,id={1},with={2}", DetailLogZero, localID, collidingWith);
+
+        if (collider.Collide(collidingWith, collidee, collidePoint, collideNormal, penetration))
+        {
+            // If a collision was posted, remember to send it to the simulator
+            ObjectsWithCollisions.Add(collider);
         }
+
         return;
     }
 
+    #endregion // Simulation
+
     public override void GetResults() { }
 
+    #region Terrain
+
     public override void SetTerrain(float[] heightMap) {
-        m_heightMap = heightMap;
-        this.TaintedObject("BSScene.SetTerrain", delegate()
-        {
-            BulletSimAPI.SetHeightmap(m_worldID, m_heightMap);
-        });
+        TerrainManager.SetTerrain(heightMap);
     }
 
-    // Someday we will have complex terrain with caves and tunnels
-    // For the moment, it's flat and convex
-    public float GetTerrainHeightAtXYZ(Vector3 loc)
+    public override void SetWaterLevel(float baseheight)
     {
-        return GetTerrainHeightAtXY(loc.X, loc.Y);
+        m_waterLevel = baseheight;
+    }
+    // Someday....
+    public float GetWaterLevelAtXYZ(Vector3 loc)
+    {
+        return m_waterLevel;
     }
 
-    public float GetTerrainHeightAtXY(float tX, float tY)
+    public override void DeleteTerrain()
     {
-        if (tX < 0 || tX >= Constants.RegionSize || tY < 0 || tY >= Constants.RegionSize)
-            return 30;
-        return m_heightMap[((int)tX) * Constants.RegionSize + ((int)tY)];
+        // m_log.DebugFormat("{0}: DeleteTerrain()", LogHeader);
     }
 
-    public override void SetWaterLevel(float baseheight) 
+    // Although no one seems to check this, I do support combining.
+    public override bool SupportsCombining()
     {
-        m_waterLevel = baseheight;
-        // TODO: pass to physics engine so things will float?
+        return TerrainManager.SupportsCombining();
     }
-    public float GetWaterLevel()
+    // This call says I am a child to region zero in a mega-region. 'pScene' is that
+    //    of region zero, 'offset' is my offset from regions zero's origin, and
+    //    'extents' is the largest XY that is handled in my region.
+    public override void Combine(PhysicsScene pScene, Vector3 offset, Vector3 extents)
     {
-        return m_waterLevel;
+        TerrainManager.Combine(pScene, offset, extents);
     }
 
-    public override void DeleteTerrain() 
+    // Unhook all the combining that I know about.
+    public override void UnCombine(PhysicsScene pScene)
     {
-        // m_log.DebugFormat("{0}: DeleteTerrain()", LogHeader);
+        TerrainManager.UnCombine(pScene);
     }
 
-    public override void Dispose()
+    #endregion // Terrain
+
+    public override Dictionary<uint, float> GetTopColliders()
     {
-        // m_log.DebugFormat("{0}: Dispose()", LogHeader);
+        return new Dictionary<uint, float>();
+    }
 
-        // make sure no stepping happens while we're deleting stuff
-        m_initialized = false;
+    public override bool IsThreaded { get { return false;  } }
 
-        foreach (KeyValuePair<uint, BSCharacter> kvp in m_avatars)
-        {
-            kvp.Value.Destroy();
-        }
-        m_avatars.Clear();
+    #region Taints
 
-        foreach (KeyValuePair<uint, BSPrim> kvp in m_prims)
-        {
-            kvp.Value.Destroy();
-        }
-        m_prims.Clear();
+    // Calls to the PhysicsActors can't directly call into the physics engine
+    // because it might be busy. We delay changes to a known time.
+    // We rely on C#'s closure to save and restore the context for the delegate.
+    public void TaintedObject(String ident, TaintCallback callback)
+    {
+        if (!m_initialized) return;
 
-        // Now that the prims are all cleaned up, there should be no constraints left
-        if (m_constraintCollection != null)
+        lock (_taintLock)
         {
-            m_constraintCollection.Dispose();
-            m_constraintCollection = null;
+            _taintOperations.Add(new TaintCallbackEntry(ident, callback));
         }
 
-        // Anything left in the unmanaged code should be cleaned out
-        BulletSimAPI.Shutdown(WorldID);
-
-        // Not logging any more
-        PhysicsLogging.Close();
+        return;
     }
 
-    public override Dictionary<uint, float> GetTopColliders()
+    // Sometimes a potentially tainted operation can be used in and out of taint time.
+    // This routine executes the command immediately if in taint-time otherwise it is queued.
+    public void TaintedObject(bool inTaintTime, string ident, TaintCallback callback)
     {
-        return new Dictionary<uint, float>();
+        if (inTaintTime)
+            callback();
+        else
+            TaintedObject(ident, callback);
     }
 
-    public override bool IsThreaded { get { return false;  } }
-
-    /// <summary>
-    /// Routine to figure out if we need to mesh this prim with our mesher
-    /// </summary>
-    /// <param name="pbs"></param>
-    /// <returns>true if the prim needs meshing</returns>
-    public bool NeedsMeshing(PrimitiveBaseShape pbs)
+    // When someone tries to change a property on a BSPrim or BSCharacter, the object queues
+    // a callback into itself to do the actual property change. That callback is called
+    // here just before the physics engine is called to step the simulation.
+    public void ProcessTaints()
     {
-        // most of this is redundant now as the mesher will return null if it cant mesh a prim
-        // but we still need to check for sculptie meshing being enabled so this is the most
-        // convenient place to do it for now...
-
-        // int iPropertiesNotSupportedDefault = 0;
-
-        if (pbs.SculptEntry && !_meshSculptedPrim)
-        {
-            // Render sculpties as boxes
-            return false;
-        }
+        InTaintTime = true;
+        ProcessRegularTaints();
+        ProcessPostTaintTaints();
+        InTaintTime = false;
+    }
 
-        // if it's a standard box or sphere with no cuts, hollows, twist or top shear, return false since Bullet 
-        // can use an internal representation for the prim
-        if (!_forceSimplePrimMeshing)
+    private void ProcessRegularTaints()
+    {
+        if (_taintOperations.Count > 0)  // save allocating new list if there is nothing to process
         {
-            if ((pbs.ProfileShape == ProfileShape.Square && pbs.PathCurve == (byte)Extrusion.Straight)
-                || (pbs.ProfileShape == ProfileShape.HalfCircle && pbs.PathCurve == (byte)Extrusion.Curve1
-                        && pbs.Scale.X == pbs.Scale.Y && pbs.Scale.Y == pbs.Scale.Z))
+            int taintCount = m_taintsToProcessPerStep;
+            TaintCallbackEntry oneCallback = new TaintCallbackEntry();
+            while (_taintOperations.Count > 0 && taintCount-- > 0)
             {
-
-                if (pbs.ProfileBegin == 0 && pbs.ProfileEnd == 0
-                    && pbs.ProfileHollow == 0
-                    && pbs.PathTwist == 0 && pbs.PathTwistBegin == 0
-                    && pbs.PathBegin == 0 && pbs.PathEnd == 0
-                    && pbs.PathTaperX == 0 && pbs.PathTaperY == 0
-                    && pbs.PathScaleX == 100 && pbs.PathScaleY == 100
-                    && pbs.PathShearX == 0 && pbs.PathShearY == 0)
+                bool gotOne = false;
+                lock (_taintLock)
                 {
-                    return false;
+                    if (_taintOperations.Count > 0)
+                    {
+                        oneCallback = _taintOperations[0];
+                        _taintOperations.RemoveAt(0);
+                        gotOne = true;
+                    }
+                }
+                if (gotOne)
+                {
+                    try
+                    {
+                        DetailLog("{0},BSScene.ProcessTaints,doTaint,id={1}", DetailLogZero, oneCallback.ident);
+                        oneCallback.callback();
+                    }
+                    catch (Exception e)
+                    {
+                        DetailLog("{0},BSScene.ProcessTaints,doTaintException,id={1}", DetailLogZero, oneCallback.ident); // DEBUG DEBUG DEBUG
+                        m_log.ErrorFormat("{0}: ProcessTaints: {1}: Exception: {2}", LogHeader, oneCallback.ident, e);
+                    }
                 }
             }
-        }
-
-        /*  TODO: verify that the mesher will now do all these shapes
-        if (pbs.ProfileHollow != 0)
-            iPropertiesNotSupportedDefault++;
-
-        if ((pbs.PathBegin != 0) || pbs.PathEnd != 0)
-            iPropertiesNotSupportedDefault++;
-
-        if ((pbs.PathTwistBegin != 0) || (pbs.PathTwist != 0))
-            iPropertiesNotSupportedDefault++; 
-
-        if ((pbs.ProfileBegin != 0) || pbs.ProfileEnd != 0)
-            iPropertiesNotSupportedDefault++;
-
-        if ((pbs.PathScaleX != 100) || (pbs.PathScaleY != 100))
-            iPropertiesNotSupportedDefault++;
-
-        if ((pbs.PathShearX != 0) || (pbs.PathShearY != 0))
-            iPropertiesNotSupportedDefault++;
-
-        if (pbs.ProfileShape == ProfileShape.Circle && pbs.PathCurve == (byte)Extrusion.Straight)
-            iPropertiesNotSupportedDefault++;
-
-        if (pbs.ProfileShape == ProfileShape.HalfCircle && pbs.PathCurve == (byte)Extrusion.Curve1 && (pbs.Scale.X != pbs.Scale.Y || pbs.Scale.Y != pbs.Scale.Z || pbs.Scale.Z != pbs.Scale.X))
-            iPropertiesNotSupportedDefault++;
-
-        if (pbs.ProfileShape == ProfileShape.HalfCircle && pbs.PathCurve == (byte) Extrusion.Curve1)
-            iPropertiesNotSupportedDefault++;
-
-        // test for torus
-        if ((pbs.ProfileCurve & 0x07) == (byte)ProfileShape.Square)
-        {
-            if (pbs.PathCurve == (byte)Extrusion.Curve1)
-            {
-                iPropertiesNotSupportedDefault++;
-            }
-        }
-        else if ((pbs.ProfileCurve & 0x07) == (byte)ProfileShape.Circle)
-        {
-            if (pbs.PathCurve == (byte)Extrusion.Straight)
+            /*
+            // swizzle a new list into the list location so we can process what's there
+            List<TaintCallbackEntry> oldList;
+            lock (_taintLock)
             {
-                iPropertiesNotSupportedDefault++;
+                oldList = _taintedObjects;
+                _taintedObjects = new List<TaintCallbackEntry>();
             }
-            // ProfileCurve seems to combine hole shape and profile curve so we need to only compare against the lower 3 bits
-            else if (pbs.PathCurve == (byte)Extrusion.Curve1)
+
+            foreach (TaintCallbackEntry tcbe in oldList)
             {
-                iPropertiesNotSupportedDefault++;
+                try
+                {
+                    DetailLog("{0},BSScene.ProcessTaints,doTaint,id={1}", DetailLogZero, tcbe.ident); // DEBUG DEBUG DEBUG
+                    tcbe.callback();
+                }
+                catch (Exception e)
+                {
+                    m_log.ErrorFormat("{0}: ProcessTaints: {1}: Exception: {2}", LogHeader, tcbe.ident, e);
+                }
             }
+            oldList.Clear();
+             */
         }
-        else if ((pbs.ProfileCurve & 0x07) == (byte)ProfileShape.HalfCircle)
+    }
+
+    // Schedule an update to happen after all the regular taints are processed.
+    // Note that new requests for the same operation ("ident") for the same object ("ID")
+    //     will replace any previous operation by the same object.
+    public void PostTaintObject(String ident, uint ID, TaintCallback callback)
+    {
+        if (!m_initialized) return;
+
+        string uniqueIdent = ident + "-" + ID.ToString();
+        lock (_taintLock)
         {
-            if (pbs.PathCurve == (byte)Extrusion.Curve1 || pbs.PathCurve == (byte)Extrusion.Curve2)
-            {
-                iPropertiesNotSupportedDefault++;
-            }
+            _postTaintOperations[uniqueIdent] = new TaintCallbackEntry(uniqueIdent, callback);
         }
-        else if ((pbs.ProfileCurve & 0x07) == (byte)ProfileShape.EquilateralTriangle)
+
+        return;
+    }
+
+    private void ProcessPostTaintTaints()
+    {
+        if (_postTaintOperations.Count > 0)
         {
-            if (pbs.PathCurve == (byte)Extrusion.Straight)
+            Dictionary<string, TaintCallbackEntry> oldList;
+            lock (_taintLock)
             {
-                iPropertiesNotSupportedDefault++;
+                oldList = _postTaintOperations;
+                _postTaintOperations = new Dictionary<string, TaintCallbackEntry>();
             }
-            else if (pbs.PathCurve == (byte)Extrusion.Curve1)
+
+            foreach (KeyValuePair<string,TaintCallbackEntry> kvp in oldList)
             {
-                iPropertiesNotSupportedDefault++;
+                try
+                {
+                    DetailLog("{0},BSScene.ProcessPostTaintTaints,doTaint,id={1}", DetailLogZero, kvp.Key); // DEBUG DEBUG DEBUG
+                    kvp.Value.callback();
+                }
+                catch (Exception e)
+                {
+                    m_log.ErrorFormat("{0}: ProcessPostTaintTaints: {1}: Exception: {2}", LogHeader, kvp.Key, e);
+                }
             }
+            oldList.Clear();
         }
-        if (iPropertiesNotSupportedDefault == 0)
-        {
-            return false;
-        }
-         */
-        return true; 
     }
 
-    // Calls to the PhysicsActors can't directly call into the physics engine
-    // because it might be busy. We delay changes to a known time.
-    // We rely on C#'s closure to save and restore the context for the delegate.
-    public void TaintedObject(String ident, TaintCallback callback)
+    public void PostStepTaintObject(String ident, TaintCallback callback)
     {
         if (!m_initialized) return;
 
         lock (_taintLock)
-            _taintedObjects.Add(new TaintCallbackEntry(ident, callback));
+        {
+            _postStepOperations.Add(new TaintCallbackEntry(ident, callback));
+        }
+
         return;
     }
 
-    // When someone tries to change a property on a BSPrim or BSCharacter, the object queues
-    // a callback into itself to do the actual property change. That callback is called
-    // here just before the physics engine is called to step the simulation.
-    public void ProcessTaints()
+    private void ProcessPostStepTaints()
     {
-        if (_taintedObjects.Count > 0)  // save allocating new list if there is nothing to process
+        if (_postStepOperations.Count > 0)
         {
-            // swizzle a new list into the list location so we can process what's there
             List<TaintCallbackEntry> oldList;
             lock (_taintLock)
             {
-                oldList = _taintedObjects;
-                _taintedObjects = new List<TaintCallbackEntry>();
+                oldList = _postStepOperations;
+                _postStepOperations = new List<TaintCallbackEntry>();
             }
 
             foreach (TaintCallbackEntry tcbe in oldList)
             {
                 try
                 {
+                    DetailLog("{0},BSScene.ProcessPostStepTaints,doTaint,id={1}", DetailLogZero, tcbe.ident); // DEBUG DEBUG DEBUG
                     tcbe.callback();
                 }
                 catch (Exception e)
                 {
-                    m_log.ErrorFormat("{0}: ProcessTaints: {1}: Exception: {2}", LogHeader, tcbe.ident, e);
+                    m_log.ErrorFormat("{0}: ProcessPostStepTaints: {1}: Exception: {2}", LogHeader, tcbe.ident, e);
                 }
             }
             oldList.Clear();
         }
     }
 
+    public bool AssertInTaintTime(string whereFrom)
+    {
+        if (!InTaintTime)
+        {
+            DetailLog("{0},BSScene.AssertInTaintTime,NOT IN TAINT TIME,Region={1},Where={2}", DetailLogZero, RegionName, whereFrom);
+            m_log.ErrorFormat("{0} NOT IN TAINT TIME!! Region={1}, Where={2}", LogHeader, RegionName, whereFrom);
+            Util.PrintCallStack();
+        }
+        return InTaintTime;
+    }
+
+    #endregion // Taints
+
     #region Vehicles
 
     public void VehicleInSceneTypeChanged(BSPrim vehic, Vehicle newType)
     {
-        if (newType == Vehicle.TYPE_NONE)
+        RemoveVehiclePrim(vehic);
+        if (newType != Vehicle.TYPE_NONE)
         {
-            RemoveVehiclePrim(vehic);
-        }
-        else
-        {
-            // make it so the scene will call us each tick to do vehicle things
+           // make it so the scene will call us each tick to do vehicle things
            AddVehiclePrim(vehic);
         }
     }
@@ -827,21 +912,22 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     }
 
     // Some prims have extra vehicle actions
-    // no locking because only called when physics engine is not busy
+    // Called at taint time!
     private void ProcessVehicles(float timeStep)
     {
-        foreach (BSPrim prim in m_vehicles)
+        foreach (BSPhysObject pobj in m_vehicles)
         {
-            prim.StepVehicle(timeStep);
+            pobj.StepVehicle(timeStep);
         }
     }
     #endregion Vehicles
 
-    #region Parameters
+    #region INI and command line parameter processing
 
     delegate void ParamUser(BSScene scene, IConfig conf, string paramName, float val);
     delegate float ParamGet(BSScene scene);
     delegate void ParamSet(BSScene scene, string paramName, uint localID, float val);
+    delegate void SetOnObject(BSScene scene, BSPhysObject obj, float val);
 
     private struct ParameterDefn
     {
@@ -851,6 +937,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         public ParamUser userParam; // get the value from the configuration file
         public ParamGet getter;     // return the current value stored for this parameter
         public ParamSet setter;     // set the current value for this parameter
+        public SetOnObject onObject;    // set the value on an object in the physical domain
         public ParameterDefn(string n, string d, float v, ParamUser u, ParamGet g, ParamSet s)
         {
             name = n;
@@ -859,6 +946,17 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             userParam = u;
             getter = g;
             setter = s;
+            onObject = null;
+        }
+        public ParameterDefn(string n, string d, float v, ParamUser u, ParamGet g, ParamSet s, SetOnObject o)
+        {
+            name = n;
+            desc = d;
+            defaultValue = v;
+            userParam = u;
+            getter = g;
+            setter = s;
+            onObject = o;
         }
     }
 
@@ -869,7 +967,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     //    getters and setters.
     // It is easiest to find an existing definition and copy it.
     // Parameter values are floats. Booleans are converted to a floating value.
-    // 
+    //
     // A ParameterDefn() takes the following parameters:
     //    -- the text name of the parameter. This is used for console input and ini file.
     //    -- a short text description of the parameter. This shows up in the console listing.
@@ -880,6 +978,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     //
     // The single letter parameters for the delegates are:
     //    s = BSScene
+    //    o = BSPhysObject
     //    p = string parameter name
     //    l = localID of referenced object
     //    v = float value
@@ -888,25 +987,40 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     {
         new ParameterDefn("MeshSculptedPrim", "Whether to create meshes for sculpties",
             ConfigurationParameters.numericTrue,
-            (s,cf,p,v) => { s._meshSculptedPrim = cf.GetBoolean(p, s.BoolNumeric(v)); },
-            (s) => { return s.NumericBool(s._meshSculptedPrim); },
-            (s,p,l,v) => { s._meshSculptedPrim = s.BoolNumeric(v); } ),
+            (s,cf,p,v) => { s.ShouldMeshSculptedPrim = cf.GetBoolean(p, s.BoolNumeric(v)); },
+            (s) => { return s.NumericBool(s.ShouldMeshSculptedPrim); },
+            (s,p,l,v) => { s.ShouldMeshSculptedPrim = s.BoolNumeric(v); } ),
         new ParameterDefn("ForceSimplePrimMeshing", "If true, only use primitive meshes for objects",
             ConfigurationParameters.numericFalse,
-            (s,cf,p,v) => { s._forceSimplePrimMeshing = cf.GetBoolean(p, s.BoolNumeric(v)); },
-            (s) => { return s.NumericBool(s._forceSimplePrimMeshing); },
-            (s,p,l,v) => { s._forceSimplePrimMeshing = s.BoolNumeric(v); } ),
+            (s,cf,p,v) => { s.ShouldForceSimplePrimMeshing = cf.GetBoolean(p, s.BoolNumeric(v)); },
+            (s) => { return s.NumericBool(s.ShouldForceSimplePrimMeshing); },
+            (s,p,l,v) => { s.ShouldForceSimplePrimMeshing = s.BoolNumeric(v); } ),
+        new ParameterDefn("UseHullsForPhysicalObjects", "If true, create hulls for physical objects",
+            ConfigurationParameters.numericTrue,
+            (s,cf,p,v) => { s.ShouldUseHullsForPhysicalObjects = cf.GetBoolean(p, s.BoolNumeric(v)); },
+            (s) => { return s.NumericBool(s.ShouldUseHullsForPhysicalObjects); },
+            (s,p,l,v) => { s.ShouldUseHullsForPhysicalObjects = s.BoolNumeric(v); } ),
 
-        new ParameterDefn("MeshLOD", "Level of detail to render meshes (32, 16, 8 or 4. 32=most detailed)",
+        new ParameterDefn("MeshLevelOfDetail", "Level of detail to render meshes (32, 16, 8 or 4. 32=most detailed)",
             8f,
-            (s,cf,p,v) => { s.m_meshLOD = cf.GetInt(p, (int)v); },
-            (s) => { return (float)s.m_meshLOD; },
-            (s,p,l,v) => { s.m_meshLOD = (int)v; } ),
-        new ParameterDefn("SculptLOD", "Level of detail to render sculpties (32, 16, 8 or 4. 32=most detailed)",
+            (s,cf,p,v) => { s.MeshLOD = (float)cf.GetInt(p, (int)v); },
+            (s) => { return s.MeshLOD; },
+            (s,p,l,v) => { s.MeshLOD = v; } ),
+        new ParameterDefn("MeshLevelOfDetailMegaPrim", "Level of detail to render meshes larger than threshold meters",
+            16f,
+            (s,cf,p,v) => { s.MeshMegaPrimLOD = (float)cf.GetInt(p, (int)v); },
+            (s) => { return s.MeshMegaPrimLOD; },
+            (s,p,l,v) => { s.MeshMegaPrimLOD = v; } ),
+        new ParameterDefn("MeshLevelOfDetailMegaPrimThreshold", "Size (in meters) of a mesh before using MeshMegaPrimLOD",
+            10f,
+            (s,cf,p,v) => { s.MeshMegaPrimThreshold = (float)cf.GetInt(p, (int)v); },
+            (s) => { return s.MeshMegaPrimThreshold; },
+            (s,p,l,v) => { s.MeshMegaPrimThreshold = v; } ),
+        new ParameterDefn("SculptLevelOfDetail", "Level of detail to render sculpties (32, 16, 8 or 4. 32=most detailed)",
             32f,
-            (s,cf,p,v) => { s.m_sculptLOD = cf.GetInt(p, (int)v); },
-            (s) => { return (float)s.m_sculptLOD; },
-            (s,p,l,v) => { s.m_sculptLOD = (int)v; } ),
+            (s,cf,p,v) => { s.SculptLOD = (float)cf.GetInt(p, (int)v); },
+            (s) => { return s.SculptLOD; },
+            (s,p,l,v) => { s.SculptLOD = v; } ),
 
         new ParameterDefn("MaxSubStep", "In simulation step, maximum number of substeps",
             10f,
@@ -928,11 +1042,16 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             (s,cf,p,v) => { s.m_maxUpdatesPerFrame = cf.GetInt(p, (int)v); },
             (s) => { return (float)s.m_maxUpdatesPerFrame; },
             (s,p,l,v) => { s.m_maxUpdatesPerFrame = (int)v; } ),
+        new ParameterDefn("MaxTaintsToProcessPerStep", "Number of update taints to process before each simulation step",
+            100f,
+            (s,cf,p,v) => { s.m_taintsToProcessPerStep = cf.GetInt(p, (int)v); },
+            (s) => { return (float)s.m_taintsToProcessPerStep; },
+            (s,p,l,v) => { s.m_taintsToProcessPerStep = (int)v; } ),
         new ParameterDefn("MaxObjectMass", "Maximum object mass (10000.01)",
             10000.01f,
-            (s,cf,p,v) => { s.m_maximumObjectMass = cf.GetFloat(p, v); },
-            (s) => { return (float)s.m_maximumObjectMass; },
-            (s,p,l,v) => { s.m_maximumObjectMass = v; } ),
+            (s,cf,p,v) => { s.MaximumObjectMass = cf.GetFloat(p, v); },
+            (s) => { return (float)s.MaximumObjectMass; },
+            (s,p,l,v) => { s.MaximumObjectMass = v; } ),
 
         new ParameterDefn("PID_D", "Derivitive factor for motion smoothing",
             2200f,
@@ -969,104 +1088,118 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             -9.80665f,
             (s,cf,p,v) => { s.m_params[0].gravity = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].gravity; },
-            (s,p,l,v) => { s.m_params[0].gravity = v; s.TaintedUpdateParameter(p,l,v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].gravity, p, PhysParameterEntry.APPLY_TO_NONE, v); },
+            (s,o,v) => { BulletSimAPI.SetGravity2(s.World.ptr, new Vector3(0f,0f,v)); } ),
 
 
         new ParameterDefn("LinearDamping", "Factor to damp linear movement per second (0.0 - 1.0)",
             0f,
             (s,cf,p,v) => { s.m_params[0].linearDamping = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].linearDamping; },
-            (s,p,l,v) => { s.UpdateParameterPrims(ref s.m_params[0].linearDamping, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].linearDamping, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetDamping2(o.PhysBody.ptr, v, v); } ),
         new ParameterDefn("AngularDamping", "Factor to damp angular movement per second (0.0 - 1.0)",
             0f,
             (s,cf,p,v) => { s.m_params[0].angularDamping = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].angularDamping; },
-            (s,p,l,v) => { s.UpdateParameterPrims(ref s.m_params[0].angularDamping, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].angularDamping, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetDamping2(o.PhysBody.ptr, v, v); } ),
         new ParameterDefn("DeactivationTime", "Seconds before considering an object potentially static",
             0.2f,
             (s,cf,p,v) => { s.m_params[0].deactivationTime = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].deactivationTime; },
-            (s,p,l,v) => { s.UpdateParameterPrims(ref s.m_params[0].deactivationTime, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].deactivationTime, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetDeactivationTime2(o.PhysBody.ptr, v); } ),
         new ParameterDefn("LinearSleepingThreshold", "Seconds to measure linear movement before considering static",
             0.8f,
             (s,cf,p,v) => { s.m_params[0].linearSleepingThreshold = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].linearSleepingThreshold; },
-            (s,p,l,v) => { s.UpdateParameterPrims(ref s.m_params[0].linearSleepingThreshold, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].linearSleepingThreshold, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetSleepingThresholds2(o.PhysBody.ptr, v, v); } ),
         new ParameterDefn("AngularSleepingThreshold", "Seconds to measure angular movement before considering static",
             1.0f,
             (s,cf,p,v) => { s.m_params[0].angularSleepingThreshold = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].angularSleepingThreshold; },
-            (s,p,l,v) => { s.UpdateParameterPrims(ref s.m_params[0].angularSleepingThreshold, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].angularSleepingThreshold, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetSleepingThresholds2(o.PhysBody.ptr, v, v); } ),
         new ParameterDefn("CcdMotionThreshold", "Continuious collision detection threshold (0 means no CCD)" ,
             0f,     // set to zero to disable
             (s,cf,p,v) => { s.m_params[0].ccdMotionThreshold = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].ccdMotionThreshold; },
-            (s,p,l,v) => { s.UpdateParameterPrims(ref s.m_params[0].ccdMotionThreshold, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].ccdMotionThreshold, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetCcdMotionThreshold2(o.PhysBody.ptr, v); } ),
         new ParameterDefn("CcdSweptSphereRadius", "Continuious collision detection test radius" ,
             0f,
             (s,cf,p,v) => { s.m_params[0].ccdSweptSphereRadius = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].ccdSweptSphereRadius; },
-            (s,p,l,v) => { s.UpdateParameterPrims(ref s.m_params[0].ccdSweptSphereRadius, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].ccdSweptSphereRadius, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetCcdSweptSphereRadius2(o.PhysBody.ptr, v); } ),
         new ParameterDefn("ContactProcessingThreshold", "Distance between contacts before doing collision check" ,
             0.1f,
             (s,cf,p,v) => { s.m_params[0].contactProcessingThreshold = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].contactProcessingThreshold; },
-            (s,p,l,v) => { s.UpdateParameterPrims(ref s.m_params[0].contactProcessingThreshold, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].contactProcessingThreshold, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetContactProcessingThreshold2(o.PhysBody.ptr, v); } ),
 
         new ParameterDefn("TerrainFriction", "Factor to reduce movement against terrain surface" ,
             0.5f,
             (s,cf,p,v) => { s.m_params[0].terrainFriction = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].terrainFriction; },
-            (s,p,l,v) => { s.m_params[0].terrainFriction = v; s.TaintedUpdateParameter(p,l,v); } ),
+            (s,p,l,v) => { s.m_params[0].terrainFriction = v;  /* TODO: set on real terrain */} ),
         new ParameterDefn("TerrainHitFraction", "Distance to measure hit collisions" ,
             0.8f,
             (s,cf,p,v) => { s.m_params[0].terrainHitFraction = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].terrainHitFraction; },
-            (s,p,l,v) => { s.m_params[0].terrainHitFraction = v; s.TaintedUpdateParameter(p,l,v); } ),
+            (s,p,l,v) => { s.m_params[0].terrainHitFraction = v; /* TODO: set on real terrain */ } ),
         new ParameterDefn("TerrainRestitution", "Bouncyness" ,
             0f,
             (s,cf,p,v) => { s.m_params[0].terrainRestitution = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].terrainRestitution; },
-            (s,p,l,v) => { s.m_params[0].terrainRestitution = v; s.TaintedUpdateParameter(p,l,v); } ),
+            (s,p,l,v) => { s.m_params[0].terrainRestitution = v;  /* TODO: set on real terrain */ } ),
         new ParameterDefn("AvatarFriction", "Factor to reduce movement against an avatar. Changed on avatar recreation.",
-            0.5f,
+            0.2f,
             (s,cf,p,v) => { s.m_params[0].avatarFriction = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].avatarFriction; },
-            (s,p,l,v) => { s.UpdateParameterAvatars(ref s.m_params[0].avatarFriction, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].avatarFriction, p, l, v); } ),
+        new ParameterDefn("AvatarStandingFriction", "Avatar friction when standing. Changed on avatar recreation.",
+            10f,
+            (s,cf,p,v) => { s.m_params[0].avatarStandingFriction = cf.GetFloat(p, v); },
+            (s) => { return s.m_params[0].avatarStandingFriction; },
+            (s,p,l,v) => { s.m_params[0].avatarStandingFriction = v; } ),
         new ParameterDefn("AvatarDensity", "Density of an avatar. Changed on avatar recreation.",
             60f,
             (s,cf,p,v) => { s.m_params[0].avatarDensity = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].avatarDensity; },
-            (s,p,l,v) => { s.UpdateParameterAvatars(ref s.m_params[0].avatarDensity, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].avatarDensity, p, l, v); } ),
         new ParameterDefn("AvatarRestitution", "Bouncyness. Changed on avatar recreation.",
             0f,
             (s,cf,p,v) => { s.m_params[0].avatarRestitution = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].avatarRestitution; },
-            (s,p,l,v) => { s.UpdateParameterAvatars(ref s.m_params[0].avatarRestitution, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].avatarRestitution, p, l, v); } ),
         new ParameterDefn("AvatarCapsuleRadius", "Radius of space around an avatar",
             0.37f,
             (s,cf,p,v) => { s.m_params[0].avatarCapsuleRadius = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].avatarCapsuleRadius; },
-            (s,p,l,v) => { s.UpdateParameterAvatars(ref s.m_params[0].avatarCapsuleRadius, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].avatarCapsuleRadius, p, l, v); } ),
         new ParameterDefn("AvatarCapsuleHeight", "Default height of space around avatar",
             1.5f,
             (s,cf,p,v) => { s.m_params[0].avatarCapsuleHeight = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].avatarCapsuleHeight; },
-            (s,p,l,v) => { s.UpdateParameterAvatars(ref s.m_params[0].avatarCapsuleHeight, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].avatarCapsuleHeight, p, l, v); } ),
             new ParameterDefn("AvatarContactProcessingThreshold", "Distance from capsule to check for collisions",
             0.1f,
             (s,cf,p,v) => { s.m_params[0].avatarContactProcessingThreshold = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].avatarContactProcessingThreshold; },
-            (s,p,l,v) => { s.UpdateParameterAvatars(ref s.m_params[0].avatarContactProcessingThreshold, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].avatarContactProcessingThreshold, p, l, v); } ),
 
 
             new ParameterDefn("MaxPersistantManifoldPoolSize", "Number of manifolds pooled (0 means default of 4096)",
-            0f,     // zero to disable
+            0f,
             (s,cf,p,v) => { s.m_params[0].maxPersistantManifoldPoolSize = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].maxPersistantManifoldPoolSize; },
             (s,p,l,v) => { s.m_params[0].maxPersistantManifoldPoolSize = v; } ),
             new ParameterDefn("MaxCollisionAlgorithmPoolSize", "Number of collisions pooled (0 means default of 4096)",
-            0f,     // zero to disable
+            0f,
             (s,cf,p,v) => { s.m_params[0].maxCollisionAlgorithmPoolSize = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].maxCollisionAlgorithmPoolSize; },
             (s,p,l,v) => { s.m_params[0].maxCollisionAlgorithmPoolSize = v; } ),
@@ -1081,12 +1214,12 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             (s) => { return s.m_params[0].shouldForceUpdateAllAabbs; },
             (s,p,l,v) => { s.m_params[0].shouldForceUpdateAllAabbs = v; } ),
             new ParameterDefn("ShouldRandomizeSolverOrder", "Enable for slightly better stacking interaction",
-            ConfigurationParameters.numericFalse,
+            ConfigurationParameters.numericTrue,
             (s,cf,p,v) => { s.m_params[0].shouldRandomizeSolverOrder = s.NumericBool(cf.GetBoolean(p, s.BoolNumeric(v))); },
             (s) => { return s.m_params[0].shouldRandomizeSolverOrder; },
             (s,p,l,v) => { s.m_params[0].shouldRandomizeSolverOrder = v; } ),
             new ParameterDefn("ShouldSplitSimulationIslands", "Enable splitting active object scanning islands",
-            ConfigurationParameters.numericFalse,
+            ConfigurationParameters.numericTrue,
             (s,cf,p,v) => { s.m_params[0].shouldSplitSimulationIslands = s.NumericBool(cf.GetBoolean(p, s.BoolNumeric(v))); },
             (s) => { return s.m_params[0].shouldSplitSimulationIslands; },
             (s,p,l,v) => { s.m_params[0].shouldSplitSimulationIslands = v; } ),
@@ -1101,6 +1234,11 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             (s) => { return s.m_params[0].numberOfSolverIterations; },
             (s,p,l,v) => { s.m_params[0].numberOfSolverIterations = v; } ),
 
+            new ParameterDefn("LinksetImplementation", "Type of linkset implementation (0=Constraint, 1=Compound, 2=Manual)",
+            (float)BSLinkset.LinksetImplementation.Compound,
+            (s,cf,p,v) => { s.m_params[0].linksetImplementation = cf.GetFloat(p,v); },
+            (s) => { return s.m_params[0].linksetImplementation; },
+            (s,p,l,v) => { s.m_params[0].linksetImplementation = v; } ),
             new ParameterDefn("LinkConstraintUseFrameOffset", "For linksets built with constraints, enable frame offsetFor linksets built with constraints, enable frame offset.",
             ConfigurationParameters.numericFalse,
             (s,cf,p,v) => { s.m_params[0].linkConstraintUseFrameOffset = s.NumericBool(cf.GetBoolean(p, s.BoolNumeric(v))); },
@@ -1121,28 +1259,27 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             (s,cf,p,v) => { s.m_params[0].linkConstraintTransMotorMaxForce = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].linkConstraintTransMotorMaxForce; },
             (s,p,l,v) => { s.m_params[0].linkConstraintTransMotorMaxForce = v; } ),
-            new ParameterDefn("LinkConstraintCFM", "Amount constraint can be violated. 0=none, 1=all. Default=0",
-            0.0f,
+            new ParameterDefn("LinkConstraintCFM", "Amount constraint can be violated. 0=no violation, 1=infinite. Default=0.1",
+            0.1f,
             (s,cf,p,v) => { s.m_params[0].linkConstraintCFM = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].linkConstraintCFM; },
             (s,p,l,v) => { s.m_params[0].linkConstraintCFM = v; } ),
             new ParameterDefn("LinkConstraintERP", "Amount constraint is corrected each tick. 0=none, 1=all. Default = 0.2",
-            0.2f,
+            0.1f,
             (s,cf,p,v) => { s.m_params[0].linkConstraintERP = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].linkConstraintERP; },
             (s,p,l,v) => { s.m_params[0].linkConstraintERP = v; } ),
+            new ParameterDefn("LinkConstraintSolverIterations", "Number of solver iterations when computing constraint. (0 = Bullet default)",
+            40,
+            (s,cf,p,v) => { s.m_params[0].linkConstraintSolverIterations = cf.GetFloat(p, v); },
+            (s) => { return s.m_params[0].linkConstraintSolverIterations; },
+            (s,p,l,v) => { s.m_params[0].linkConstraintSolverIterations = v; } ),
 
-        new ParameterDefn("DetailedStats", "Frames between outputting detailed phys stats. (0 is off)",
+        new ParameterDefn("LogPhysicsStatisticsFrames", "Frames between outputting detailed phys stats. (0 is off)",
             0f,
-            (s,cf,p,v) => { s.m_detailedStatsStep = cf.GetInt(p, (int)v); },
-            (s) => { return (float)s.m_detailedStatsStep; },
-            (s,p,l,v) => { s.m_detailedStatsStep = (int)v; } ),
-        new ParameterDefn("ShouldDebugLog", "Enables detailed DEBUG log statements",
-            ConfigurationParameters.numericFalse,
-            (s,cf,p,v) => { s.ShouldDebugLog = cf.GetBoolean(p, s.BoolNumeric(v)); },
-            (s) => { return s.NumericBool(s.ShouldDebugLog); },
-            (s,p,l,v) => { s.ShouldDebugLog = s.BoolNumeric(v); } ),
-
+            (s,cf,p,v) => { s.m_params[0].physicsLoggingFrames = cf.GetInt(p, (int)v); },
+            (s) => { return (float)s.m_params[0].physicsLoggingFrames; },
+            (s,p,l,v) => { s.m_params[0].physicsLoggingFrames = (int)v; } ),
     };
 
     // Convert a boolean to our numeric true and false values
@@ -1200,11 +1337,12 @@ public class BSScene : PhysicsScene, IPhysicsParameters
 
     private PhysParameterEntry[] SettableParameters = new PhysParameterEntry[1];
 
+    // This creates an array in the correct format for returning the list of
+    //    parameters. This is used by the 'list' option of the 'physics' command.
     private void BuildParameterTable()
     {
         if (SettableParameters.Length < ParameterDefinitions.Length)
         {
-
             List<PhysParameterEntry> entries = new List<PhysParameterEntry>();
             for (int ii = 0; ii < ParameterDefinitions.Length; ii++)
             {
@@ -1249,60 +1387,54 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         return ret;
     }
 
-    // check to see if we are updating a parameter for a particular or all of the prims
-    protected void UpdateParameterPrims(ref float loc, string parm, uint localID, float val)
-    {
-        List<uint> operateOn;
-        lock (m_prims) operateOn = new List<uint>(m_prims.Keys);
-        UpdateParameterSet(operateOn, ref loc, parm, localID, val);
-    }
-
-    // check to see if we are updating a parameter for a particular or all of the avatars
-    protected void UpdateParameterAvatars(ref float loc, string parm, uint localID, float val)
-    {
-        List<uint> operateOn;
-        lock (m_avatars) operateOn = new List<uint>(m_avatars.Keys);
-        UpdateParameterSet(operateOn, ref loc, parm, localID, val);
-    }
-
     // update all the localIDs specified
     // If the local ID is APPLY_TO_NONE, just change the default value
     // If the localID is APPLY_TO_ALL change the default value and apply the new value to all the lIDs
     // If the localID is a specific object, apply the parameter change to only that object
-    protected void UpdateParameterSet(List<uint> lIDs, ref float defaultLoc, string parm, uint localID, float val)
+    private void UpdateParameterObject(ref float defaultLoc, string parm, uint localID, float val)
     {
+        List<uint> objectIDs = new List<uint>();
         switch (localID)
         {
             case PhysParameterEntry.APPLY_TO_NONE:
                 defaultLoc = val;   // setting only the default value
+                // This will cause a call into the physical world if some operation is specified (SetOnObject).
+                objectIDs.Add(TERRAIN_ID);
+                TaintedUpdateParameter(parm, objectIDs, val);
                 break;
             case PhysParameterEntry.APPLY_TO_ALL:
                 defaultLoc = val;  // setting ALL also sets the default value
-                List<uint> objectIDs = lIDs;
-                string xparm = parm.ToLower();
-                float xval = val;
-                TaintedObject("BSScene.UpdateParameterSet", delegate() {
-                    foreach (uint lID in objectIDs)
-                    {
-                        BulletSimAPI.UpdateParameter(m_worldID, lID, xparm, xval);
-                    }
-                });
+                lock (PhysObjects) objectIDs = new List<uint>(PhysObjects.Keys);
+                TaintedUpdateParameter(parm, objectIDs, val);
                 break;
-            default: 
+            default:
                 // setting only one localID
-                TaintedUpdateParameter(parm, localID, val);
+                objectIDs.Add(localID);
+                TaintedUpdateParameter(parm, objectIDs, val);
                 break;
         }
     }
 
     // schedule the actual updating of the paramter to when the phys engine is not busy
-    protected void TaintedUpdateParameter(string parm, uint localID, float val)
+    private void TaintedUpdateParameter(string parm, List<uint> lIDs, float val)
     {
-        uint xlocalID = localID;
-        string xparm = parm.ToLower();
         float xval = val;
-        TaintedObject("BSScene.TaintedUpdateParameter", delegate() {
-            BulletSimAPI.UpdateParameter(m_worldID, xlocalID, xparm, xval);
+        List<uint> xlIDs = lIDs;
+        string xparm = parm;
+        TaintedObject("BSScene.UpdateParameterSet", delegate() {
+            ParameterDefn thisParam;
+            if (TryGetParameter(xparm, out thisParam))
+            {
+                if (thisParam.onObject != null)
+                {
+                    foreach (uint lID in xlIDs)
+                    {
+                        BSPhysObject theObject = null;
+                        PhysObjects.TryGetValue(lID, out theObject);
+                        thisParam.onObject(this, theObject, xval);
+                    }
+                }
+            }
         });
     }
 
@@ -1326,12 +1458,24 @@ public class BSScene : PhysicsScene, IPhysicsParameters
 
     #endregion Runtime settable parameters
 
+    // Debugging routine for dumping detailed physical information for vehicle prims
+    private void DumpVehicles()
+    {
+        foreach (BSPrim prim in m_vehicles)
+        {
+            BulletSimAPI.DumpRigidBody2(World.ptr, prim.PhysBody.ptr);
+            BulletSimAPI.DumpCollisionShape2(World.ptr, prim.PhysShape.ptr);
+        }
+    }
+
     // Invoke the detailed logger and output something if it's enabled.
     public void DetailLog(string msg, params Object[] args)
     {
         PhysicsLogging.Write(msg, args);
+        // Add the Flush() if debugging crashes. Gets all the messages written out.
+        PhysicsLogging.Flush();
     }
-    // used to fill in the LocalID when there isn't one
+    // Used to fill in the LocalID when there isn't one. It's the correct number of characters.
     public const string DetailLogZero = "0000000000";
 
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs b/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs
new file mode 100755
index 0000000..29a23c0
--- /dev/null
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs
@@ -0,0 +1,1000 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyrightD
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+using System;
+using System.Collections.Generic;
+using System.Text;
+using OMV = OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Region.Physics.Manager;
+using OpenSim.Region.Physics.ConvexDecompositionDotNet;
+
+namespace OpenSim.Region.Physics.BulletSPlugin
+{
+public sealed class BSShapeCollection : IDisposable
+{
+    private static string LogHeader = "[BULLETSIM SHAPE COLLECTION]";
+
+    private BSScene PhysicsScene { get; set; }
+
+    private Object m_collectionActivityLock = new Object();
+
+    // Description of a Mesh
+    private struct MeshDesc
+    {
+        public IntPtr ptr;
+        public int referenceCount;
+        public DateTime lastReferenced;
+        public UInt64 shapeKey;
+    }
+
+    // Description of a hull.
+    // Meshes and hulls have the same shape hash key but we only need hulls for efficient collision calculations.
+    private struct HullDesc
+    {
+        public IntPtr ptr;
+        public int referenceCount;
+        public DateTime lastReferenced;
+        public UInt64 shapeKey;
+    }
+
+    // The sharable set of meshes and hulls. Indexed by their shape hash.
+    private Dictionary<System.UInt64, MeshDesc> Meshes = new Dictionary<System.UInt64, MeshDesc>();
+    private Dictionary<System.UInt64, HullDesc> Hulls = new Dictionary<System.UInt64, HullDesc>();
+
+    public BSShapeCollection(BSScene physScene)
+    {
+        PhysicsScene = physScene;
+    }
+
+    public void Dispose()
+    {
+        // TODO!!!!!!!!!
+    }
+
+    // Callbacks called just before either the body or shape is destroyed.
+    // Mostly used for changing bodies out from under Linksets.
+    // Useful for other cases where parameters need saving.
+    // Passing 'null' says no callback.
+    public delegate void ShapeDestructionCallback(BulletShape shape);
+    public delegate void BodyDestructionCallback(BulletBody body);
+
+    // Called to update/change the body and shape for an object.
+    // First checks the shape and updates that if necessary then makes
+    //    sure the body is of the right type.
+    // Return 'true' if either the body or the shape changed.
+    // 'shapeCallback' and 'bodyCallback' are, if non-null, functions called just before
+    //    the current shape or body is destroyed. This allows the caller to remove any
+    //    higher level dependencies on the shape or body. Mostly used for LinkSets to
+    //    remove the physical constraints before the body is destroyed.
+    // Called at taint-time!!
+    public bool GetBodyAndShape(bool forceRebuild, BulletSim sim, BSPhysObject prim,
+                    ShapeDestructionCallback shapeCallback, BodyDestructionCallback bodyCallback)
+    {
+        PhysicsScene.AssertInTaintTime("BSShapeCollection.GetBodyAndShape");
+
+        bool ret = false;
+
+        // This lock could probably be pushed down lower but building shouldn't take long
+        lock (m_collectionActivityLock)
+        {
+            // Do we have the correct geometry for this type of object?
+            // Updates prim.BSShape with information/pointers to shape.
+            // Returns 'true' of BSShape is changed to a new shape.
+            bool newGeom = CreateGeom(forceRebuild, prim, shapeCallback);
+            // If we had to select a new shape geometry for the object,
+            //    rebuild the body around it.
+            // Updates prim.BSBody with information/pointers to requested body
+            // Returns 'true' if BSBody was changed.
+            bool newBody = CreateBody((newGeom || forceRebuild), prim, PhysicsScene.World,
+                                    prim.PhysShape, bodyCallback);
+            ret = newGeom || newBody;
+        }
+        DetailLog("{0},BSShapeCollection.GetBodyAndShape,taintExit,force={1},ret={2},body={3},shape={4}",
+                                prim.LocalID, forceRebuild, ret, prim.PhysBody, prim.PhysShape);
+
+        return ret;
+    }
+
+    // Track another user of a body.
+    // We presume the caller has allocated the body.
+    // Bodies only have one user so the body is just put into the world if not already there.
+    public void ReferenceBody(BulletBody body, bool inTaintTime)
+    {
+        lock (m_collectionActivityLock)
+        {
+            DetailLog("{0},BSShapeCollection.ReferenceBody,newBody,body={1}", body.ID, body);
+            PhysicsScene.TaintedObject(inTaintTime, "BSShapeCollection.ReferenceBody", delegate()
+            {
+                if (!BulletSimAPI.IsInWorld2(body.ptr))
+                {
+                    BulletSimAPI.AddObjectToWorld2(PhysicsScene.World.ptr, body.ptr);
+                    DetailLog("{0},BSShapeCollection.ReferenceBody,addedToWorld,ref={1}", body.ID, body);
+                }
+            });
+        }
+    }
+
+    // Release the usage of a body.
+    // Called when releasing use of a BSBody. BSShape is handled separately.
+    public void DereferenceBody(BulletBody body, bool inTaintTime, BodyDestructionCallback bodyCallback )
+    {
+        if (body.ptr == IntPtr.Zero)
+            return;
+
+        lock (m_collectionActivityLock)
+        {
+            PhysicsScene.TaintedObject(inTaintTime, "BSShapeCollection.DereferenceBody", delegate()
+            {
+                DetailLog("{0},BSShapeCollection.DereferenceBody,DestroyingBody,body={1},inTaintTime={2}",
+                                            body.ID, body, inTaintTime);
+                // If the caller needs to know the old body is going away, pass the event up.
+                if (bodyCallback != null) bodyCallback(body);
+
+                if (BulletSimAPI.IsInWorld2(body.ptr))
+                {
+                    BulletSimAPI.RemoveObjectFromWorld2(PhysicsScene.World.ptr, body.ptr);
+                    DetailLog("{0},BSShapeCollection.DereferenceBody,removingFromWorld. Body={1}", body.ID, body);
+                }
+
+                // Zero any reference to the shape so it is not freed when the body is deleted.
+                BulletSimAPI.SetCollisionShape2(PhysicsScene.World.ptr, body.ptr, IntPtr.Zero);
+                BulletSimAPI.DestroyObject2(PhysicsScene.World.ptr, body.ptr);
+            });
+        }
+    }
+
+    // Track the datastructures and use count for a shape.
+    // When creating a hull, this is called first to reference the mesh
+    //     and then again to reference the hull.
+    // Meshes and hulls for the same shape have the same hash key.
+    // NOTE that native shapes are not added to the mesh list or removed.
+    // Returns 'true' if this is the initial reference to the shape. Otherwise reused.
+    public bool ReferenceShape(BulletShape shape)
+    {
+        bool ret = false;
+        switch (shape.type)
+        {
+            case ShapeData.PhysicsShapeType.SHAPE_MESH:
+                MeshDesc meshDesc;
+                if (Meshes.TryGetValue(shape.shapeKey, out meshDesc))
+                {
+                    // There is an existing instance of this mesh.
+                    meshDesc.referenceCount++;
+                    DetailLog("{0},BSShapeCollection.ReferenceShape,existingMesh,key={1},cnt={2}",
+                                BSScene.DetailLogZero, shape.shapeKey.ToString("X"), meshDesc.referenceCount);
+                }
+                else
+                {
+                    // This is a new reference to a mesh
+                    meshDesc.ptr = shape.ptr;
+                    meshDesc.shapeKey = shape.shapeKey;
+                    // We keep a reference to the underlying IMesh data so a hull can be built
+                    meshDesc.referenceCount = 1;
+                    DetailLog("{0},BSShapeCollection.ReferenceShape,newMesh,key={1},cnt={2}",
+                                BSScene.DetailLogZero, shape.shapeKey.ToString("X"), meshDesc.referenceCount);
+                    ret = true;
+                }
+                meshDesc.lastReferenced = System.DateTime.Now;
+                Meshes[shape.shapeKey] = meshDesc;
+                break;
+            case ShapeData.PhysicsShapeType.SHAPE_HULL:
+                HullDesc hullDesc;
+                if (Hulls.TryGetValue(shape.shapeKey, out hullDesc))
+                {
+                    // There is an existing instance of this hull.
+                    hullDesc.referenceCount++;
+                    DetailLog("{0},BSShapeCollection.ReferenceShape,existingHull,key={1},cnt={2}",
+                                BSScene.DetailLogZero, shape.shapeKey.ToString("X"), hullDesc.referenceCount);
+                }
+                else
+                {
+                    // This is a new reference to a hull
+                    hullDesc.ptr = shape.ptr;
+                    hullDesc.shapeKey = shape.shapeKey;
+                    hullDesc.referenceCount = 1;
+                    DetailLog("{0},BSShapeCollection.ReferenceShape,newHull,key={1},cnt={2}",
+                                BSScene.DetailLogZero, shape.shapeKey.ToString("X"), hullDesc.referenceCount);
+                    ret = true;
+
+                }
+                hullDesc.lastReferenced = System.DateTime.Now;
+                Hulls[shape.shapeKey] = hullDesc;
+                break;
+            case ShapeData.PhysicsShapeType.SHAPE_UNKNOWN:
+                break;
+            default:
+                // Native shapes are not tracked and they don't go into any list
+                break;
+        }
+        return ret;
+    }
+
+    // Release the usage of a shape.
+    public void DereferenceShape(BulletShape shape, bool inTaintTime, ShapeDestructionCallback shapeCallback)
+    {
+        if (shape.ptr == IntPtr.Zero)
+            return;
+
+        PhysicsScene.TaintedObject(inTaintTime, "BSShapeCollection.DereferenceShape", delegate()
+        {
+            if (shape.ptr != IntPtr.Zero)
+            {
+                if (shape.isNativeShape)
+                {
+                    // Native shapes are not tracked and are released immediately
+                    DetailLog("{0},BSShapeCollection.DereferenceShape,deleteNativeShape,ptr={1},taintTime={2}",
+                                    BSScene.DetailLogZero, shape.ptr.ToString("X"), inTaintTime);
+                    if (shapeCallback != null) shapeCallback(shape);
+                    BulletSimAPI.DeleteCollisionShape2(PhysicsScene.World.ptr, shape.ptr);
+                }
+                else
+                {
+                    switch (shape.type)
+                    {
+                        case ShapeData.PhysicsShapeType.SHAPE_HULL:
+                            DereferenceHull(shape, shapeCallback);
+                            break;
+                        case ShapeData.PhysicsShapeType.SHAPE_MESH:
+                            DereferenceMesh(shape, shapeCallback);
+                            break;
+                        case ShapeData.PhysicsShapeType.SHAPE_COMPOUND:
+                            DereferenceCompound(shape, shapeCallback);
+                            break;
+                        case ShapeData.PhysicsShapeType.SHAPE_UNKNOWN:
+                            break;
+                        default:
+                            break;
+                    }
+                }
+            }
+        });
+    }
+
+    // Count down the reference count for a mesh shape
+    // Called at taint-time.
+    private void DereferenceMesh(BulletShape shape, ShapeDestructionCallback shapeCallback)
+    {
+        MeshDesc meshDesc;
+        if (Meshes.TryGetValue(shape.shapeKey, out meshDesc))
+        {
+            meshDesc.referenceCount--;
+            // TODO: release the Bullet storage
+            if (shapeCallback != null) shapeCallback(shape);
+            meshDesc.lastReferenced = System.DateTime.Now;
+            Meshes[shape.shapeKey] = meshDesc;
+            DetailLog("{0},BSShapeCollection.DereferenceMesh,shape={1},refCnt={2}",
+                                BSScene.DetailLogZero, shape, meshDesc.referenceCount);
+
+        }
+    }
+
+    // Count down the reference count for a hull shape
+    // Called at taint-time.
+    private void DereferenceHull(BulletShape shape, ShapeDestructionCallback shapeCallback)
+    {
+        HullDesc hullDesc;
+        if (Hulls.TryGetValue(shape.shapeKey, out hullDesc))
+        {
+            hullDesc.referenceCount--;
+            // TODO: release the Bullet storage (aging old entries?)
+
+            // Tell upper layers that, if they have dependencies on this shape, this link is going away
+            if (shapeCallback != null) shapeCallback(shape);
+
+            hullDesc.lastReferenced = System.DateTime.Now;
+            Hulls[shape.shapeKey] = hullDesc;
+            DetailLog("{0},BSShapeCollection.DereferenceHull,shape={1},refCnt={2}",
+                    BSScene.DetailLogZero, shape, hullDesc.referenceCount);
+        }
+    }
+
+    // Remove a reference to a compound shape.
+    // Taking a compound shape apart is a little tricky because if you just delete the
+    //      physical shape, it will free all the underlying children. We can't do that because
+    //      they could be shared. So, this removes each of the children from the compound and
+    //      dereferences them separately before destroying the compound collision object itself.
+    // Called at taint-time.
+    private void DereferenceCompound(BulletShape shape, ShapeDestructionCallback shapeCallback)
+    {
+        if (!BulletSimAPI.IsCompound2(shape.ptr))
+        {
+            // Failed the sanity check!!
+            PhysicsScene.Logger.ErrorFormat("{0} Attempt to free a compound shape that is not compound!! type={1}, ptr={2}",
+                                        LogHeader, shape.type, shape.ptr.ToString("X"));
+            DetailLog("{0},BSShapeCollection.DereferenceCompound,notACompoundShape,type={1},ptr={2}",
+                                        BSScene.DetailLogZero, shape.type, shape.ptr.ToString("X"));
+            return;
+        }
+
+        int numChildren = BulletSimAPI.GetNumberOfCompoundChildren2(shape.ptr);
+        DetailLog("{0},BSShapeCollection.DereferenceCompound,shape={1},children={2}", BSScene.DetailLogZero, shape, numChildren);
+
+        for (int ii = numChildren - 1; ii >= 0; ii--)
+        {
+            IntPtr childShape = BulletSimAPI.RemoveChildShapeFromCompoundShapeIndex2(shape.ptr, ii);
+            DereferenceAnonCollisionShape(childShape);
+        }
+        BulletSimAPI.DeleteCollisionShape2(PhysicsScene.World.ptr, shape.ptr);
+    }
+
+    // Sometimes we have a pointer to a collision shape but don't know what type it is.
+    // Figure out type and call the correct dereference routine.
+    // Called at taint-time.
+    private void DereferenceAnonCollisionShape(IntPtr cShape)
+    {
+        MeshDesc meshDesc;
+        HullDesc hullDesc;
+
+        BulletShape shapeInfo = new BulletShape(cShape);
+        if (TryGetMeshByPtr(cShape, out meshDesc))
+        {
+            shapeInfo.type = ShapeData.PhysicsShapeType.SHAPE_MESH;
+            shapeInfo.shapeKey = meshDesc.shapeKey;
+        }
+        else
+        {
+            if (TryGetHullByPtr(cShape, out hullDesc))
+            {
+                shapeInfo.type = ShapeData.PhysicsShapeType.SHAPE_HULL;
+                shapeInfo.shapeKey = hullDesc.shapeKey;
+            }
+            else
+            {
+                if (BulletSimAPI.IsCompound2(cShape))
+                {
+                    shapeInfo.type = ShapeData.PhysicsShapeType.SHAPE_COMPOUND;
+                }
+                else
+                {
+                    if (BulletSimAPI.IsNativeShape2(cShape))
+                    {
+                        shapeInfo.isNativeShape = true;
+                        shapeInfo.type = ShapeData.PhysicsShapeType.SHAPE_BOX; // (technically, type doesn't matter)
+                    }
+                }
+            }
+        }
+
+        DetailLog("{0},BSShapeCollection.DereferenceAnonCollisionShape,shape={1}", BSScene.DetailLogZero, shapeInfo);
+
+        if (shapeInfo.type != ShapeData.PhysicsShapeType.SHAPE_UNKNOWN)
+        {
+            DereferenceShape(shapeInfo, true, null);
+        }
+        else
+        {
+            PhysicsScene.Logger.ErrorFormat("{0} Could not decypher shape type. Region={1}, addr={2}",
+                                    LogHeader, PhysicsScene.RegionName, cShape.ToString("X"));
+        }
+    }
+
+    // Create the geometry information in Bullet for later use.
+    // The objects needs a hull if it's physical otherwise a mesh is enough.
+    // if 'forceRebuild' is true, the geometry is unconditionally rebuilt. For meshes and hulls,
+    //     shared geometries will be used. If the parameters of the existing shape are the same
+    //     as this request, the shape is not rebuilt.
+    // Info in prim.BSShape is updated to the new shape.
+    // Returns 'true' if the geometry was rebuilt.
+    // Called at taint-time!
+    private bool CreateGeom(bool forceRebuild, BSPhysObject prim, ShapeDestructionCallback shapeCallback)
+    {
+        bool ret = false;
+        bool haveShape = false;
+
+        if (!haveShape && prim.PreferredPhysicalShape == ShapeData.PhysicsShapeType.SHAPE_AVATAR)
+        {
+            // an avatar capsule is close to a native shape (it is not shared)
+            ret = GetReferenceToNativeShape(prim, ShapeData.PhysicsShapeType.SHAPE_AVATAR,
+                            ShapeData.FixedShapeKey.KEY_CAPSULE, shapeCallback);
+            DetailLog("{0},BSShapeCollection.CreateGeom,avatarCapsule,shape={1}", prim.LocalID, prim.PhysShape);
+            ret = true;
+            haveShape = true;
+        }
+
+        // Compound shapes are handled special as they are rebuilt from scratch.
+        // This isn't too great a hardship since most of the child shapes will already been created.
+        if (!haveShape && prim.PreferredPhysicalShape == ShapeData.PhysicsShapeType.SHAPE_COMPOUND)
+        {
+            ret = GetReferenceToCompoundShape(prim, shapeCallback);
+            DetailLog("{0},BSShapeCollection.CreateGeom,compoundShape,shape={1}", prim.LocalID, prim.PhysShape);
+            haveShape = true;
+        }
+
+        if (!haveShape)
+        {
+            ret = CreateGeomNonSpecial(forceRebuild, prim, shapeCallback);
+        }
+
+        return ret;
+    }
+
+    // Create a mesh/hull shape or a native shape if 'nativeShapePossible' is 'true'.
+    private bool CreateGeomNonSpecial(bool forceRebuild, BSPhysObject prim, ShapeDestructionCallback shapeCallback)
+    {
+        bool ret = false;
+        bool haveShape = false;
+        bool nativeShapePossible = true;
+        PrimitiveBaseShape pbs = prim.BaseShape;
+
+        // If the prim attributes are simple, this could be a simple Bullet native shape
+        if (!haveShape
+                && pbs != null
+                && nativeShapePossible
+                && ((pbs.SculptEntry && !PhysicsScene.ShouldMeshSculptedPrim)
+                    || (pbs.ProfileBegin == 0 && pbs.ProfileEnd == 0
+                        && pbs.ProfileHollow == 0
+                        && pbs.PathTwist == 0 && pbs.PathTwistBegin == 0
+                        && pbs.PathBegin == 0 && pbs.PathEnd == 0
+                        && pbs.PathTaperX == 0 && pbs.PathTaperY == 0
+                        && pbs.PathScaleX == 100 && pbs.PathScaleY == 100
+                        && pbs.PathShearX == 0 && pbs.PathShearY == 0) ) )
+        {
+            // It doesn't look like Bullet scales spheres so make sure the scales are all equal
+            if ((pbs.ProfileShape == ProfileShape.HalfCircle && pbs.PathCurve == (byte)Extrusion.Curve1)
+                                && pbs.Scale.X == pbs.Scale.Y && pbs.Scale.Y == pbs.Scale.Z)
+            {
+                haveShape = true;
+                if (forceRebuild
+                        || prim.Scale != prim.Size
+                        || prim.PhysShape.type != ShapeData.PhysicsShapeType.SHAPE_SPHERE
+                        )
+                {
+                    ret = GetReferenceToNativeShape(prim, ShapeData.PhysicsShapeType.SHAPE_SPHERE,
+                                            ShapeData.FixedShapeKey.KEY_SPHERE, shapeCallback);
+                    DetailLog("{0},BSShapeCollection.CreateGeom,sphere,force={1},shape={2}",
+                                        prim.LocalID, forceRebuild, prim.PhysShape);
+                }
+            }
+            if (!haveShape && pbs.ProfileShape == ProfileShape.Square && pbs.PathCurve == (byte)Extrusion.Straight)
+            {
+                haveShape = true;
+                if (forceRebuild
+                        || prim.Scale != prim.Size
+                        || prim.PhysShape.type != ShapeData.PhysicsShapeType.SHAPE_BOX
+                        )
+                {
+                    ret = GetReferenceToNativeShape( prim, ShapeData.PhysicsShapeType.SHAPE_BOX,
+                                            ShapeData.FixedShapeKey.KEY_BOX, shapeCallback);
+                    DetailLog("{0},BSShapeCollection.CreateGeom,box,force={1},shape={2}",
+                                        prim.LocalID, forceRebuild, prim.PhysShape);
+                }
+            }
+        }
+
+        // If a simple shape is not happening, create a mesh and possibly a hull.
+        if (!haveShape && pbs != null)
+        {
+            ret = CreateGeomMeshOrHull(prim, shapeCallback);
+        }
+
+        return ret;
+    }
+
+    public bool CreateGeomMeshOrHull(BSPhysObject prim, ShapeDestructionCallback shapeCallback)
+    {
+
+        bool ret = false;
+        // Note that if it's a native shape, the check for physical/non-physical is not
+        //     made. Native shapes work in either case.
+        if (prim.IsPhysical && PhysicsScene.ShouldUseHullsForPhysicalObjects)
+        {
+            // Update prim.BSShape to reference a hull of this shape.
+            ret = GetReferenceToHull(prim,shapeCallback);
+            DetailLog("{0},BSShapeCollection.CreateGeom,hull,shape={1},key={2}",
+                                    prim.LocalID, prim.PhysShape, prim.PhysShape.shapeKey.ToString("X"));
+        }
+        else
+        {
+            ret = GetReferenceToMesh(prim, shapeCallback);
+            DetailLog("{0},BSShapeCollection.CreateGeom,mesh,shape={1},key={2}",
+                                    prim.LocalID, prim.PhysShape, prim.PhysShape.shapeKey.ToString("X"));
+        }
+        return ret;
+    }
+
+    // Creates a native shape and assignes it to prim.BSShape.
+    // "Native" shapes are never shared. they are created here and destroyed in DereferenceShape().
+    private bool GetReferenceToNativeShape(BSPhysObject prim,
+                            ShapeData.PhysicsShapeType shapeType, ShapeData.FixedShapeKey shapeKey,
+                            ShapeDestructionCallback shapeCallback)
+    {
+        // release any previous shape
+        DereferenceShape(prim.PhysShape, true, shapeCallback);
+
+        // Bullet native objects are scaled by the Bullet engine so pass the size in
+        prim.Scale = prim.Size;
+
+        BulletShape newShape = BuildPhysicalNativeShape(prim, shapeType, shapeKey);
+
+        // Don't need to do a 'ReferenceShape()' here because native shapes are not shared.
+        DetailLog("{0},BSShapeCollection.AddNativeShapeToPrim,create,newshape={1},scale={2}",
+                                prim.LocalID, newShape, prim.Scale);
+
+        prim.PhysShape = newShape;
+        return true;
+    }
+
+    private BulletShape BuildPhysicalNativeShape(BSPhysObject prim, ShapeData.PhysicsShapeType shapeType,
+                                    ShapeData.FixedShapeKey shapeKey)
+    {
+        BulletShape newShape;
+        // Need to make sure the passed shape information is for the native type.
+        ShapeData nativeShapeData = new ShapeData();
+        nativeShapeData.Type = shapeType;
+        nativeShapeData.ID = prim.LocalID;
+        nativeShapeData.Scale = prim.Scale;
+        nativeShapeData.Size = prim.Scale;
+        nativeShapeData.MeshKey = (ulong)shapeKey;
+        nativeShapeData.HullKey = (ulong)shapeKey;
+
+        if (shapeType == ShapeData.PhysicsShapeType.SHAPE_AVATAR)
+        {
+            newShape = new BulletShape(
+                        BulletSimAPI.BuildCapsuleShape2(PhysicsScene.World.ptr, 1f, 1f, prim.Scale)
+                        , shapeType);
+            DetailLog("{0},BSShapeCollection.BuiletPhysicalNativeShape,capsule,scale={1}", prim.LocalID, prim.Scale);
+        }
+        else
+        {
+            newShape = new BulletShape(BulletSimAPI.BuildNativeShape2(PhysicsScene.World.ptr, nativeShapeData), shapeType);
+        }
+        if (newShape.ptr == IntPtr.Zero)
+        {
+            PhysicsScene.Logger.ErrorFormat("{0} BuildPhysicalNativeShape failed. ID={1}, shape={2}",
+                                    LogHeader, prim.LocalID, shapeType);
+        }
+        newShape.shapeKey = (System.UInt64)shapeKey;
+        newShape.isNativeShape = true;
+
+        return newShape;
+    }
+
+    // Builds a mesh shape in the physical world and updates prim.BSShape.
+    // Dereferences previous shape in BSShape and adds a reference for this new shape.
+    // Returns 'true' of a mesh was actually built. Otherwise .
+    // Called at taint-time!
+    private bool GetReferenceToMesh(BSPhysObject prim, ShapeDestructionCallback shapeCallback)
+    {
+        BulletShape newShape = new BulletShape(IntPtr.Zero);
+
+        float lod;
+        System.UInt64 newMeshKey = ComputeShapeKey(prim.Size, prim.BaseShape, out lod);
+
+        // if this new shape is the same as last time, don't recreate the mesh
+        if (newMeshKey == prim.PhysShape.shapeKey && prim.PhysShape.type == ShapeData.PhysicsShapeType.SHAPE_MESH)
+            return false;
+
+        DetailLog("{0},BSShapeCollection.GetReferenceToMesh,create,oldKey={1},newKey={2}",
+                                prim.LocalID, prim.PhysShape.shapeKey.ToString("X"), newMeshKey.ToString("X"));
+
+        // Since we're recreating new, get rid of the reference to the previous shape
+        DereferenceShape(prim.PhysShape, true, shapeCallback);
+
+        newShape = CreatePhysicalMesh(prim.PhysObjectName, newMeshKey, prim.BaseShape, prim.Size, lod);
+        // Take evasive action if the mesh was not constructed.
+        newShape = VerifyMeshCreated(newShape, prim);
+
+        ReferenceShape(newShape);
+
+        // meshes are already scaled by the meshmerizer
+        prim.Scale = new OMV.Vector3(1f, 1f, 1f);
+        prim.PhysShape = newShape;
+
+        return true;        // 'true' means a new shape has been added to this prim
+    }
+
+    private BulletShape CreatePhysicalMesh(string objName, System.UInt64 newMeshKey, PrimitiveBaseShape pbs, OMV.Vector3 size, float lod)
+    {
+        IMesh meshData = null;
+        IntPtr meshPtr = IntPtr.Zero;
+        MeshDesc meshDesc;
+        if (Meshes.TryGetValue(newMeshKey, out meshDesc))
+        {
+            // If the mesh has already been built just use it.
+            meshPtr = meshDesc.ptr;
+        }
+        else
+        {
+            // Pass false for physicalness as this creates some sort of bounding box which we don't need
+            meshData = PhysicsScene.mesher.CreateMesh(objName, pbs, size, lod, false);
+
+            if (meshData != null)
+            {
+                int[] indices = meshData.getIndexListAsInt();
+                List<OMV.Vector3> vertices = meshData.getVertexList();
+
+                float[] verticesAsFloats = new float[vertices.Count * 3];
+                int vi = 0;
+                foreach (OMV.Vector3 vv in vertices)
+                {
+                    verticesAsFloats[vi++] = vv.X;
+                    verticesAsFloats[vi++] = vv.Y;
+                    verticesAsFloats[vi++] = vv.Z;
+                }
+
+                // m_log.DebugFormat("{0}: BSShapeCollection.CreatePhysicalMesh: calling CreateMesh. lid={1}, key={2}, indices={3}, vertices={4}",
+                //                  LogHeader, prim.LocalID, newMeshKey, indices.Length, vertices.Count);
+
+                meshPtr = BulletSimAPI.CreateMeshShape2(PhysicsScene.World.ptr,
+                                    indices.GetLength(0), indices, vertices.Count, verticesAsFloats);
+            }
+        }
+        BulletShape newShape = new BulletShape(meshPtr, ShapeData.PhysicsShapeType.SHAPE_MESH);
+        newShape.shapeKey = newMeshKey;
+
+        return newShape;
+    }
+
+    // See that hull shape exists in the physical world and update prim.BSShape.
+    // We could be creating the hull because scale changed or whatever.
+    private bool GetReferenceToHull(BSPhysObject prim, ShapeDestructionCallback shapeCallback)
+    {
+        BulletShape newShape;
+
+        float lod;
+        System.UInt64 newHullKey = ComputeShapeKey(prim.Size, prim.BaseShape, out lod);
+
+        // if the hull hasn't changed, don't rebuild it
+        if (newHullKey == prim.PhysShape.shapeKey && prim.PhysShape.type == ShapeData.PhysicsShapeType.SHAPE_HULL)
+            return false;
+
+        DetailLog("{0},BSShapeCollection.GetReferenceToHull,create,oldKey={1},newKey={2}",
+                        prim.LocalID, prim.PhysShape.shapeKey.ToString("X"), newHullKey.ToString("X"));
+
+        // Remove usage of the previous shape.
+        DereferenceShape(prim.PhysShape, true, shapeCallback);
+
+        newShape = CreatePhysicalHull(prim.PhysObjectName, newHullKey, prim.BaseShape, prim.Size, lod);
+        newShape = VerifyMeshCreated(newShape, prim);
+
+        ReferenceShape(newShape);
+
+        // hulls are already scaled by the meshmerizer
+        prim.Scale = new OMV.Vector3(1f, 1f, 1f);
+        prim.PhysShape = newShape;
+        return true;        // 'true' means a new shape has been added to this prim
+    }
+
+    List<ConvexResult> m_hulls;
+    private BulletShape CreatePhysicalHull(string objName, System.UInt64 newHullKey, PrimitiveBaseShape pbs, OMV.Vector3 size, float lod)
+    {
+
+        IntPtr hullPtr = IntPtr.Zero;
+        HullDesc hullDesc;
+        if (Hulls.TryGetValue(newHullKey, out hullDesc))
+        {
+            // If the hull shape already is created, just use it.
+            hullPtr = hullDesc.ptr;
+        }
+        else
+        {
+            // Build a new hull in the physical world
+            // Pass false for physicalness as this creates some sort of bounding box which we don't need
+            IMesh meshData = PhysicsScene.mesher.CreateMesh(objName, pbs, size, lod, false);
+            if (meshData != null)
+            {
+
+                int[] indices = meshData.getIndexListAsInt();
+                List<OMV.Vector3> vertices = meshData.getVertexList();
+
+                //format conversion from IMesh format to DecompDesc format
+                List<int> convIndices = new List<int>();
+                List<float3> convVertices = new List<float3>();
+                for (int ii = 0; ii < indices.GetLength(0); ii++)
+                {
+                    convIndices.Add(indices[ii]);
+                }
+                foreach (OMV.Vector3 vv in vertices)
+                {
+                    convVertices.Add(new float3(vv.X, vv.Y, vv.Z));
+                }
+
+                // setup and do convex hull conversion
+                m_hulls = new List<ConvexResult>();
+                DecompDesc dcomp = new DecompDesc();
+                dcomp.mIndices = convIndices;
+                dcomp.mVertices = convVertices;
+                ConvexBuilder convexBuilder = new ConvexBuilder(HullReturn);
+                // create the hull into the _hulls variable
+                convexBuilder.process(dcomp);
+
+                // Convert the vertices and indices for passing to unmanaged.
+                // The hull information is passed as a large floating point array.
+                // The format is:
+                //  convHulls[0] = number of hulls
+                //  convHulls[1] = number of vertices in first hull
+                //  convHulls[2] = hull centroid X coordinate
+                //  convHulls[3] = hull centroid Y coordinate
+                //  convHulls[4] = hull centroid Z coordinate
+                //  convHulls[5] = first hull vertex X
+                //  convHulls[6] = first hull vertex Y
+                //  convHulls[7] = first hull vertex Z
+                //  convHulls[8] = second hull vertex X
+                //  ...
+                //  convHulls[n] = number of vertices in second hull
+                //  convHulls[n+1] = second hull centroid X coordinate
+                //  ...
+                //
+                // TODO: is is very inefficient. Someday change the convex hull generator to return
+                //   data structures that do not need to be converted in order to pass to Bullet.
+                //   And maybe put the values directly into pinned memory rather than marshaling.
+                int hullCount = m_hulls.Count;
+                int totalVertices = 1;          // include one for the count of the hulls
+                foreach (ConvexResult cr in m_hulls)
+                {
+                    totalVertices += 4;                         // add four for the vertex count and centroid
+                    totalVertices += cr.HullIndices.Count * 3;  // we pass just triangles
+                }
+                float[] convHulls = new float[totalVertices];
+
+                convHulls[0] = (float)hullCount;
+                int jj = 1;
+                foreach (ConvexResult cr in m_hulls)
+                {
+                    // copy vertices for index access
+                    float3[] verts = new float3[cr.HullVertices.Count];
+                    int kk = 0;
+                    foreach (float3 ff in cr.HullVertices)
+                    {
+                        verts[kk++] = ff;
+                    }
+
+                    // add to the array one hull's worth of data
+                    convHulls[jj++] = cr.HullIndices.Count;
+                    convHulls[jj++] = 0f;   // centroid x,y,z
+                    convHulls[jj++] = 0f;
+                    convHulls[jj++] = 0f;
+                    foreach (int ind in cr.HullIndices)
+                    {
+                        convHulls[jj++] = verts[ind].x;
+                        convHulls[jj++] = verts[ind].y;
+                        convHulls[jj++] = verts[ind].z;
+                    }
+                }
+                // create the hull data structure in Bullet
+                hullPtr = BulletSimAPI.CreateHullShape2(PhysicsScene.World.ptr, hullCount, convHulls);
+            }
+        }
+
+        BulletShape newShape = new BulletShape(hullPtr, ShapeData.PhysicsShapeType.SHAPE_HULL);
+        newShape.shapeKey = newHullKey;
+
+        return newShape;        // 'true' means a new shape has been added to this prim
+    }
+
+    // Callback from convex hull creater with a newly created hull.
+    // Just add it to our collection of hulls for this shape.
+    private void HullReturn(ConvexResult result)
+    {
+        m_hulls.Add(result);
+        return;
+    }
+
+    // Compound shapes are always built from scratch.
+    // This shouldn't be to bad since most of the parts will be meshes that had been built previously.
+    private bool GetReferenceToCompoundShape(BSPhysObject prim, ShapeDestructionCallback shapeCallback)
+    {
+        // Remove reference to the old shape
+        // Don't need to do this as the shape is freed when the new root shape is created below.
+        // DereferenceShape(prim.PhysShape, true, shapeCallback);
+
+        BulletShape cShape = new BulletShape(
+            BulletSimAPI.CreateCompoundShape2(PhysicsScene.World.ptr, false), ShapeData.PhysicsShapeType.SHAPE_COMPOUND);
+
+        // Create the shape for the root prim and add it to the compound shape. Cannot be a native shape.
+        CreateGeomMeshOrHull(prim, shapeCallback);
+        BulletSimAPI.AddChildShapeToCompoundShape2(cShape.ptr, prim.PhysShape.ptr, OMV.Vector3.Zero, OMV.Quaternion.Identity);
+        DetailLog("{0},BSShapeCollection.GetReferenceToCompoundShape,addRootPrim,compShape={1},rootShape={2}",
+                                    prim.LocalID, cShape, prim.PhysShape);
+
+        prim.PhysShape = cShape;
+
+        return true;
+    }
+
+    // Create a hash of all the shape parameters to be used as a key
+    //    for this particular shape.
+    private System.UInt64 ComputeShapeKey(OMV.Vector3 size, PrimitiveBaseShape pbs, out float retLod)
+    {
+        // level of detail based on size and type of the object
+        float lod = PhysicsScene.MeshLOD;
+        if (pbs.SculptEntry)
+            lod = PhysicsScene.SculptLOD;
+
+        // Mega prims usually get more detail because one can interact with shape approximations at this size.
+        float maxAxis = Math.Max(size.X, Math.Max(size.Y, size.Z));
+        if (maxAxis > PhysicsScene.MeshMegaPrimThreshold)
+            lod = PhysicsScene.MeshMegaPrimLOD;
+
+        retLod = lod;
+        return pbs.GetMeshKey(size, lod);
+    }
+    // For those who don't want the LOD
+    private System.UInt64 ComputeShapeKey(OMV.Vector3 size, PrimitiveBaseShape pbs)
+    {
+        float lod;
+        return ComputeShapeKey(size, pbs, out lod);
+    }
+
+    // The creation of a mesh or hull can fail if an underlying asset is not available.
+    // There are two cases: 1) the asset is not in the cache and it needs to be fetched;
+    //     and 2) the asset cannot be converted (like failed decompression of JPEG2000s).
+    //     The first case causes the asset to be fetched. The second case requires
+    //     us to not loop forever.
+    // Called after creating a physical mesh or hull. If the physical shape was created,
+    //     just return.
+    private BulletShape VerifyMeshCreated(BulletShape newShape, BSPhysObject prim)
+    {
+        // If the shape was successfully created, nothing more to do
+        if (newShape.ptr != IntPtr.Zero)
+            return newShape;
+
+        // If this mesh has an underlying asset and we have not failed getting it before, fetch the asset
+        if (prim.BaseShape.SculptEntry && !prim.LastAssetBuildFailed && prim.BaseShape.SculptTexture != OMV.UUID.Zero)
+        {
+            prim.LastAssetBuildFailed = true;
+            BSPhysObject xprim = prim;
+            DetailLog("{0},BSShapeCollection.VerifyMeshCreated,fetchAsset,lID={1},lastFailed={2}",
+                            LogHeader, prim.LocalID, prim.LastAssetBuildFailed);
+            Util.FireAndForget(delegate
+                {
+                    RequestAssetDelegate assetProvider = PhysicsScene.RequestAssetMethod;
+                    if (assetProvider != null)
+                    {
+                        BSPhysObject yprim = xprim; // probably not necessary, but, just in case.
+                        assetProvider(yprim.BaseShape.SculptTexture, delegate(AssetBase asset)
+                        {
+                            if (!yprim.BaseShape.SculptEntry)
+                                return;
+                            if (yprim.BaseShape.SculptTexture.ToString() != asset.ID)
+                                return;
+
+                            yprim.BaseShape.SculptData = asset.Data;
+                            // This will cause the prim to see that the filler shape is not the right
+                            //    one and try again to build the object.
+                            // No race condition with the normal shape setting since the rebuild is at taint time.
+                            yprim.ForceBodyShapeRebuild(false);
+
+                        });
+                    }
+                });
+        }
+        else
+        {
+            if (prim.LastAssetBuildFailed)
+            {
+                PhysicsScene.Logger.ErrorFormat("{0} Mesh failed to fetch asset. lID={1}, texture={2}",
+                                            LogHeader, prim.LocalID, prim.BaseShape.SculptTexture);
+            }
+        }
+
+        // While we figure out the real problem, stick a simple native shape on the object.
+        BulletShape fillinShape =
+            BuildPhysicalNativeShape(prim, ShapeData.PhysicsShapeType.SHAPE_BOX, ShapeData.FixedShapeKey.KEY_BOX);
+
+        return fillinShape;
+    }
+
+    // Create a body object in Bullet.
+    // Updates prim.BSBody with the information about the new body if one is created.
+    // Returns 'true' if an object was actually created.
+    // Called at taint-time.
+    private bool CreateBody(bool forceRebuild, BSPhysObject prim, BulletSim sim, BulletShape shape,
+                            BodyDestructionCallback bodyCallback)
+    {
+        bool ret = false;
+
+        // the mesh, hull or native shape must have already been created in Bullet
+        bool mustRebuild = (prim.PhysBody.ptr == IntPtr.Zero);
+
+        // If there is an existing body, verify it's of an acceptable type.
+        // If not a solid object, body is a GhostObject. Otherwise a RigidBody.
+        if (!mustRebuild)
+        {
+            CollisionObjectTypes bodyType = (CollisionObjectTypes)BulletSimAPI.GetBodyType2(prim.PhysBody.ptr);
+            if (prim.IsSolid && bodyType != CollisionObjectTypes.CO_RIGID_BODY
+                || !prim.IsSolid && bodyType != CollisionObjectTypes.CO_GHOST_OBJECT)
+            {
+                // If the collisionObject is not the correct type for solidness, rebuild what's there
+                mustRebuild = true;
+            }
+        }
+
+        if (mustRebuild || forceRebuild)
+        {
+            // Free any old body
+            DereferenceBody(prim.PhysBody, true, bodyCallback);
+
+            BulletBody aBody;
+            IntPtr bodyPtr = IntPtr.Zero;
+            if (prim.IsSolid)
+            {
+                bodyPtr = BulletSimAPI.CreateBodyFromShape2(sim.ptr, shape.ptr,
+                                        prim.LocalID, prim.RawPosition, prim.RawOrientation);
+                DetailLog("{0},BSShapeCollection.CreateBody,mesh,ptr={1}", prim.LocalID, bodyPtr.ToString("X"));
+            }
+            else
+            {
+                bodyPtr = BulletSimAPI.CreateGhostFromShape2(sim.ptr, shape.ptr,
+                                        prim.LocalID, prim.ForcePosition, prim.ForceOrientation);
+                DetailLog("{0},BSShapeCollection.CreateBody,ghost,ptr={1}", prim.LocalID, bodyPtr.ToString("X"));
+            }
+            aBody = new BulletBody(prim.LocalID, bodyPtr);
+
+            ReferenceBody(aBody, true);
+
+            prim.PhysBody = aBody;
+
+            ret = true;
+        }
+
+        return ret;
+    }
+
+    private bool TryGetMeshByPtr(IntPtr addr, out MeshDesc outDesc)
+    {
+        bool ret = false;
+        MeshDesc foundDesc = new MeshDesc();
+        foreach (MeshDesc md in Meshes.Values)
+        {
+            if (md.ptr == addr)
+            {
+                foundDesc = md;
+                ret = true;
+                break;
+            }
+
+        }
+        outDesc = foundDesc;
+        return ret;
+    }
+
+    private bool TryGetHullByPtr(IntPtr addr, out HullDesc outDesc)
+    {
+        bool ret = false;
+        HullDesc foundDesc = new HullDesc();
+        foreach (HullDesc hd in Hulls.Values)
+        {
+            if (hd.ptr == addr)
+            {
+                foundDesc = hd;
+                ret = true;
+                break;
+            }
+
+        }
+        outDesc = foundDesc;
+        return ret;
+    }
+
+    private void DetailLog(string msg, params Object[] args)
+    {
+        if (PhysicsScene.PhysicsLogging.Enabled)
+            PhysicsScene.DetailLog(msg, args);
+    }
+}
+}
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs b/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs
new file mode 100755
index 0000000..7c34af2
--- /dev/null
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs
@@ -0,0 +1,479 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyrightD
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+using OpenSim.Framework;
+using OpenSim.Region.Framework;
+using OpenSim.Region.CoreModules;
+using OpenSim.Region.Physics.Manager;
+
+using Nini.Config;
+using log4net;
+
+using OpenMetaverse;
+
+namespace OpenSim.Region.Physics.BulletSPlugin
+{
+public sealed class BSTerrainManager
+{
+    static string LogHeader = "[BULLETSIM TERRAIN MANAGER]";
+
+    // These height values are fractional so the odd values will be
+    //     noticable when debugging.
+    public const float HEIGHT_INITIALIZATION = 24.987f;
+    public const float HEIGHT_INITIAL_LASTHEIGHT = 24.876f;
+    public const float HEIGHT_GETHEIGHT_RET = 24.765f;
+
+    // If the min and max height are equal, we reduce the min by this
+    //    amount to make sure that a bounding box is built for the terrain.
+    public const float HEIGHT_EQUAL_FUDGE = 0.2f;
+
+    public const float TERRAIN_COLLISION_MARGIN = 0.0f;
+
+    // Until the whole simulator is changed to pass us the region size, we rely on constants.
+    public Vector3 DefaultRegionSize = new Vector3(Constants.RegionSize, Constants.RegionSize, Constants.RegionHeight);
+
+    // The scene that I am part of
+    private BSScene PhysicsScene { get; set; }
+
+    // The ground plane created to keep thing from falling to infinity.
+    private BulletBody m_groundPlane;
+
+    // If doing mega-regions, if we're region zero we will be managing multiple
+    //    region terrains since region zero does the physics for the whole mega-region.
+    private Dictionary<Vector2, BulletHeightMapInfo> m_heightMaps;
+
+    // True of the terrain has been modified.
+    // Used to force recalculation of terrain height after terrain has been modified
+    private bool m_terrainModified;
+
+    // If we are doing mega-regions, terrains are added from TERRAIN_ID to m_terrainCount.
+    // This is incremented before assigning to new region so it is the last ID allocated.
+    private uint m_terrainCount = BSScene.CHILDTERRAIN_ID - 1;
+    public uint HighestTerrainID { get {return m_terrainCount; } }
+
+    // If doing mega-regions, this holds our offset from region zero of
+    //     the mega-regions. "parentScene" points to the PhysicsScene of region zero.
+    private Vector3 m_worldOffset;
+    // If the parent region (region 0), this is the extent of the combined regions
+    //     relative to the origin of region zero
+    private Vector3 m_worldMax;
+    private PhysicsScene MegaRegionParentPhysicsScene { get; set; }
+
+    public BSTerrainManager(BSScene physicsScene)
+    {
+        PhysicsScene = physicsScene;
+        m_heightMaps = new Dictionary<Vector2,BulletHeightMapInfo>();
+        m_terrainModified = false;
+
+        // Assume one region of default size
+        m_worldOffset = Vector3.Zero;
+        m_worldMax = new Vector3(DefaultRegionSize);
+        MegaRegionParentPhysicsScene = null;
+    }
+
+    // Create the initial instance of terrain and the underlying ground plane.
+    // The objects are allocated in the unmanaged space and the pointers are tracked
+    //    by the managed code.
+    // The terrains and the groundPlane are not added to the list of PhysObjects.
+    // This is called from the initialization routine so we presume it is
+    //    safe to call Bullet in real time. We hope no one is moving prims around yet.
+    public void CreateInitialGroundPlaneAndTerrain()
+    {
+        // The ground plane is here to catch things that are trying to drop to negative infinity
+        BulletShape groundPlaneShape = new BulletShape(
+                    BulletSimAPI.CreateGroundPlaneShape2(BSScene.GROUNDPLANE_ID, 1f, TERRAIN_COLLISION_MARGIN),
+                    ShapeData.PhysicsShapeType.SHAPE_GROUNDPLANE);
+        m_groundPlane = new BulletBody(BSScene.GROUNDPLANE_ID,
+                        BulletSimAPI.CreateBodyWithDefaultMotionState2(groundPlaneShape.ptr, BSScene.GROUNDPLANE_ID,
+                                                            Vector3.Zero, Quaternion.Identity));
+        BulletSimAPI.AddObjectToWorld2(PhysicsScene.World.ptr, m_groundPlane.ptr);
+        BulletSimAPI.UpdateSingleAabb2(PhysicsScene.World.ptr, m_groundPlane.ptr);
+        // Ground plane does not move
+        BulletSimAPI.ForceActivationState2(m_groundPlane.ptr, ActivationState.DISABLE_SIMULATION);
+        // Everything collides with the ground plane.
+        BulletSimAPI.SetCollisionFilterMask2(m_groundPlane.ptr,
+                        (uint)CollisionFilterGroups.GroundPlaneFilter, (uint)CollisionFilterGroups.GroundPlaneMask);
+
+        Vector3 minTerrainCoords = new Vector3(0f, 0f, HEIGHT_INITIALIZATION - HEIGHT_EQUAL_FUDGE);
+        Vector3 maxTerrainCoords = new Vector3(DefaultRegionSize.X, DefaultRegionSize.Y, HEIGHT_INITIALIZATION);
+        int totalHeights = (int)maxTerrainCoords.X * (int)maxTerrainCoords.Y;
+        float[] initialMap = new float[totalHeights];
+        for (int ii = 0; ii < totalHeights; ii++)
+        {
+            initialMap[ii] = HEIGHT_INITIALIZATION;
+        }
+        UpdateOrCreateTerrain(BSScene.TERRAIN_ID, initialMap, minTerrainCoords, maxTerrainCoords, true);
+    }
+
+    // Release all the terrain structures we might have allocated
+    public void ReleaseGroundPlaneAndTerrain()
+    {
+        if (m_groundPlane.ptr != IntPtr.Zero)
+        {
+            if (BulletSimAPI.RemoveObjectFromWorld2(PhysicsScene.World.ptr, m_groundPlane.ptr))
+            {
+                BulletSimAPI.DestroyObject2(PhysicsScene.World.ptr, m_groundPlane.ptr);
+            }
+            m_groundPlane.ptr = IntPtr.Zero;
+        }
+
+        ReleaseTerrain();
+    }
+
+    // Release all the terrain we have allocated
+    public void ReleaseTerrain()
+    {
+        foreach (KeyValuePair<Vector2, BulletHeightMapInfo> kvp in m_heightMaps)
+        {
+            if (BulletSimAPI.RemoveObjectFromWorld2(PhysicsScene.World.ptr, kvp.Value.terrainBody.ptr))
+            {
+                BulletSimAPI.DestroyObject2(PhysicsScene.World.ptr, kvp.Value.terrainBody.ptr);
+                BulletSimAPI.ReleaseHeightMapInfo2(kvp.Value.Ptr);
+            }
+        }
+        m_heightMaps.Clear();
+    }
+
+    // The simulator wants to set a new heightmap for the terrain.
+    public void SetTerrain(float[] heightMap) {
+        float[] localHeightMap = heightMap;
+        PhysicsScene.TaintedObject("TerrainManager.SetTerrain", delegate()
+        {
+            if (m_worldOffset != Vector3.Zero && MegaRegionParentPhysicsScene != null)
+            {
+                // If a child of a mega-region, we shouldn't have any terrain allocated for us
+                ReleaseGroundPlaneAndTerrain();
+                // If doing the mega-prim stuff and we are the child of the zero region,
+                //    the terrain is added to our parent
+                if (MegaRegionParentPhysicsScene is BSScene)
+                {
+                    DetailLog("{0},SetTerrain.ToParent,offset={1},worldMax={2}",
+                                    BSScene.DetailLogZero, m_worldOffset, m_worldMax);
+                    ((BSScene)MegaRegionParentPhysicsScene).TerrainManager.UpdateOrCreateTerrain(BSScene.CHILDTERRAIN_ID,
+                                    localHeightMap, m_worldOffset, m_worldOffset + DefaultRegionSize, true);
+                }
+            }
+            else
+            {
+                // If not doing the mega-prim thing, just change the terrain
+                DetailLog("{0},SetTerrain.Existing", BSScene.DetailLogZero);
+
+                UpdateOrCreateTerrain(BSScene.TERRAIN_ID, localHeightMap,
+                                    m_worldOffset, m_worldOffset + DefaultRegionSize, true);
+            }
+        });
+    }
+
+    // If called with no mapInfo for the terrain, this will create a new mapInfo and terrain
+    //     based on the passed information. The 'id' should be either the terrain id or
+    //     BSScene.CHILDTERRAIN_ID. If the latter, a new child terrain ID will be allocated and used.
+    //     The latter feature is for creating child terrains for mega-regions.
+    // If called with a mapInfo in m_heightMaps but the terrain has no body yet (mapInfo.terrainBody.Ptr == 0)
+    //     then a new body and shape is created and the mapInfo is filled.
+    //     This call is used for doing the initial terrain creation.
+    // If called with a mapInfo in m_heightMaps and there is an existing terrain body, a new
+    //     terrain shape is created and added to the body.
+    //     This call is most often used to update the heightMap and parameters of the terrain.
+    // (The above does suggest that some simplification/refactoring is in order.)
+    private void UpdateOrCreateTerrain(uint id, float[] heightMap, Vector3 minCoords, Vector3 maxCoords, bool inTaintTime)
+    {
+        DetailLog("{0},BSTerrainManager.UpdateOrCreateTerrain,call,minC={1},maxC={2},inTaintTime={3}",
+                            BSScene.DetailLogZero, minCoords, maxCoords, inTaintTime);
+
+        float minZ = float.MaxValue;
+        float maxZ = float.MinValue;
+        Vector2 terrainRegionBase = new Vector2(minCoords.X, minCoords.Y);
+
+        int heightMapSize = heightMap.Length;
+        for (int ii = 0; ii < heightMapSize; ii++)
+        {
+            float height = heightMap[ii];
+            if (height < minZ) minZ = height;
+            if (height > maxZ) maxZ = height;
+        }
+
+        // The shape of the terrain is from its base to its extents.
+        minCoords.Z = minZ;
+        maxCoords.Z = maxZ;
+
+        BulletHeightMapInfo mapInfo;
+        if (m_heightMaps.TryGetValue(terrainRegionBase, out mapInfo))
+        {
+            // If this is terrain we know about, it's easy to update
+
+            mapInfo.heightMap = heightMap;
+            mapInfo.minCoords = minCoords;
+            mapInfo.maxCoords = maxCoords;
+            mapInfo.minZ = minZ;
+            mapInfo.maxZ = maxZ;
+            mapInfo.sizeX = maxCoords.X - minCoords.X;
+            mapInfo.sizeY = maxCoords.Y - minCoords.Y;
+            DetailLog("{0},UpdateOrCreateTerrain:UpdateExisting,call,terrainBase={1},minC={2}, maxC={3}, szX={4}, szY={5}",
+                        BSScene.DetailLogZero, terrainRegionBase, mapInfo.minCoords, mapInfo.maxCoords, mapInfo.sizeX, mapInfo.sizeY);
+
+            PhysicsScene.TaintedObject(inTaintTime, "BSScene.UpdateOrCreateTerrain:UpdateExisting", delegate()
+            {
+                if (MegaRegionParentPhysicsScene != null)
+                {
+                    // It's possible that Combine() was called after this code was queued.
+                    // If we are a child of combined regions, we don't create any terrain for us.
+                    DetailLog("{0},UpdateOrCreateTerrain:AmACombineChild,taint", BSScene.DetailLogZero);
+
+                    // Get rid of any terrain that may have been allocated for us.
+                    ReleaseGroundPlaneAndTerrain();
+
+                    // I hate doing this, but just bail
+                    return;
+                }
+
+                if (mapInfo.terrainBody.ptr != IntPtr.Zero)
+                {
+                    // Updating an existing terrain.
+                    DetailLog("{0},UpdateOrCreateTerrain:UpdateExisting,taint,terrainBase={1},minC={2}, maxC={3}, szX={4}, szY={5}",
+                                    BSScene.DetailLogZero, terrainRegionBase, mapInfo.minCoords, mapInfo.maxCoords, mapInfo.sizeX, mapInfo.sizeY);
+
+                    // Remove from the dynamics world because we're going to mangle this object
+                    BulletSimAPI.RemoveObjectFromWorld2(PhysicsScene.World.ptr, mapInfo.terrainBody.ptr);
+
+                    // Get rid of the old terrain
+                    BulletSimAPI.DestroyObject2(PhysicsScene.World.ptr, mapInfo.terrainBody.ptr);
+                    BulletSimAPI.ReleaseHeightMapInfo2(mapInfo.Ptr);
+                    mapInfo.Ptr = IntPtr.Zero;
+
+                    /*
+                    // NOTE: This routine is half here because I can't get the terrain shape replacement
+                    //   to work. In the short term, the above three lines completely delete the old
+                    //   terrain and the code below recreates one from scratch.
+                    // Hopefully the Bullet community will help me out on this one.
+
+                    // First, release the old collision shape (there is only one terrain)
+                    BulletSimAPI.DeleteCollisionShape2(m_physicsScene.World.Ptr, mapInfo.terrainShape.Ptr);
+
+                    // Fill the existing height map info with the new location and size information
+                    BulletSimAPI.FillHeightMapInfo2(m_physicsScene.World.Ptr, mapInfo.Ptr, mapInfo.ID,
+                                    mapInfo.minCoords, mapInfo.maxCoords, mapInfo.heightMap, TERRAIN_COLLISION_MARGIN);
+
+                    // Create a terrain shape based on the new info
+                    mapInfo.terrainShape = new BulletShape(BulletSimAPI.CreateTerrainShape2(mapInfo.Ptr));
+
+                    // Stuff the shape into the existing terrain body
+                    BulletSimAPI.SetBodyShape2(m_physicsScene.World.Ptr, mapInfo.terrainBody.Ptr, mapInfo.terrainShape.Ptr);
+                    */
+                }
+                // else
+                {
+                    // Creating a new terrain.
+                    DetailLog("{0},UpdateOrCreateTerrain:CreateNewTerrain,taint,baseX={1},baseY={2},minZ={3},maxZ={4}",
+                                    BSScene.DetailLogZero, mapInfo.minCoords.X, mapInfo.minCoords.Y, minZ, maxZ);
+
+                    mapInfo.ID = id;
+                    mapInfo.Ptr = BulletSimAPI.CreateHeightMapInfo2(PhysicsScene.World.ptr, mapInfo.ID,
+                        mapInfo.minCoords, mapInfo.maxCoords, mapInfo.heightMap, TERRAIN_COLLISION_MARGIN);
+
+                    // Create the terrain shape from the mapInfo
+                    mapInfo.terrainShape = new BulletShape(BulletSimAPI.CreateTerrainShape2(mapInfo.Ptr),
+                                ShapeData.PhysicsShapeType.SHAPE_TERRAIN);
+
+                    // The terrain object initial position is at the center of the object
+                    Vector3 centerPos;
+                    centerPos.X = minCoords.X + (mapInfo.sizeX / 2f);
+                    centerPos.Y = minCoords.Y + (mapInfo.sizeY / 2f);
+                    centerPos.Z = minZ + ((maxZ - minZ) / 2f);
+
+                    mapInfo.terrainBody = new BulletBody(mapInfo.ID,
+                            BulletSimAPI.CreateBodyWithDefaultMotionState2(mapInfo.terrainShape.ptr,
+                                                        id, centerPos, Quaternion.Identity));
+                }
+
+                // Make sure the entry is in the heightmap table
+                m_heightMaps[terrainRegionBase] = mapInfo;
+
+                // Set current terrain attributes
+                BulletSimAPI.SetFriction2(mapInfo.terrainBody.ptr, PhysicsScene.Params.terrainFriction);
+                BulletSimAPI.SetHitFraction2(mapInfo.terrainBody.ptr, PhysicsScene.Params.terrainHitFraction);
+                BulletSimAPI.SetRestitution2(mapInfo.terrainBody.ptr, PhysicsScene.Params.terrainRestitution);
+                BulletSimAPI.SetCollisionFlags2(mapInfo.terrainBody.ptr, CollisionFlags.CF_STATIC_OBJECT);
+
+                // Return the new terrain to the world of physical objects
+                BulletSimAPI.AddObjectToWorld2(PhysicsScene.World.ptr, mapInfo.terrainBody.ptr);
+
+                // redo its bounding box now that it is in the world
+                BulletSimAPI.UpdateSingleAabb2(PhysicsScene.World.ptr, mapInfo.terrainBody.ptr);
+
+                BulletSimAPI.SetCollisionFilterMask2(mapInfo.terrainBody.ptr,
+                                    (uint)CollisionFilterGroups.TerrainFilter,
+                                    (uint)CollisionFilterGroups.TerrainMask);
+
+                // Make sure the new shape is processed.
+                // BulletSimAPI.Activate2(mapInfo.terrainBody.ptr, true);
+                // BulletSimAPI.ForceActivationState2(mapInfo.terrainBody.ptr, ActivationState.ISLAND_SLEEPING);
+                BulletSimAPI.ForceActivationState2(mapInfo.terrainBody.ptr, ActivationState.DISABLE_SIMULATION);
+
+                m_terrainModified = true;
+            });
+        }
+        else
+        {
+            // We don't know about this terrain so either we are creating a new terrain or
+            //    our mega-prim child is giving us a new terrain to add to the phys world
+
+            // if this is a child terrain, calculate a unique terrain id
+            uint newTerrainID = id;
+            if (newTerrainID >= BSScene.CHILDTERRAIN_ID)
+                newTerrainID = ++m_terrainCount;
+
+            float[] heightMapX = heightMap;
+            Vector3 minCoordsX = minCoords;
+            Vector3 maxCoordsX = maxCoords;
+
+            DetailLog("{0},UpdateOrCreateTerrain:NewTerrain,call,id={1}, minC={2}, maxC={3}",
+                            BSScene.DetailLogZero, newTerrainID, minCoords, minCoords);
+
+            // Code that must happen at taint-time
+            PhysicsScene.TaintedObject(inTaintTime, "BSScene.UpdateOrCreateTerrain:NewTerrain", delegate()
+            {
+                DetailLog("{0},UpdateOrCreateTerrain:NewTerrain,taint,baseX={1},baseY={2}", BSScene.DetailLogZero, minCoords.X, minCoords.Y);
+                // Create a new mapInfo that will be filled with the new info
+                mapInfo = new BulletHeightMapInfo(id, heightMapX,
+                        BulletSimAPI.CreateHeightMapInfo2(PhysicsScene.World.ptr, newTerrainID,
+                                    minCoordsX, maxCoordsX, heightMapX, TERRAIN_COLLISION_MARGIN));
+                // Put the unfilled heightmap info into the collection of same
+                m_heightMaps.Add(terrainRegionBase, mapInfo);
+                // Build the terrain
+                UpdateOrCreateTerrain(newTerrainID, heightMap, minCoords, maxCoords, true);
+
+                m_terrainModified = true;
+            });
+        }
+    }
+
+    // Someday we will have complex terrain with caves and tunnels
+    public float GetTerrainHeightAtXYZ(Vector3 loc)
+    {
+        // For the moment, it's flat and convex
+        return GetTerrainHeightAtXY(loc.X, loc.Y);
+    }
+
+    // Given an X and Y, find the height of the terrain.
+    // Since we could be handling multiple terrains for a mega-region,
+    //    the base of the region is calcuated assuming all regions are
+    //    the same size and that is the default.
+    // Once the heightMapInfo is found, we have all the information to
+    //    compute the offset into the array.
+    private float lastHeightTX = 999999f;
+    private float lastHeightTY = 999999f;
+    private float lastHeight = HEIGHT_INITIAL_LASTHEIGHT;
+    private float GetTerrainHeightAtXY(float tX, float tY)
+    {
+        // You'd be surprized at the number of times this routine is called
+        //    with the same parameters as last time.
+        if (!m_terrainModified && lastHeightTX == tX && lastHeightTY == tY)
+            return lastHeight;
+
+        lastHeightTX = tX;
+        lastHeightTY = tY;
+        float ret = HEIGHT_GETHEIGHT_RET;
+
+        int offsetX = ((int)(tX / (int)DefaultRegionSize.X)) * (int)DefaultRegionSize.X;
+        int offsetY = ((int)(tY / (int)DefaultRegionSize.Y)) * (int)DefaultRegionSize.Y;
+        Vector2 terrainBaseXY = new Vector2(offsetX, offsetY);
+
+        BulletHeightMapInfo mapInfo;
+        if (m_heightMaps.TryGetValue(terrainBaseXY, out mapInfo))
+        {
+            float regionX = tX - offsetX;
+            float regionY = tY - offsetY;
+            int mapIndex = (int)regionY * (int)mapInfo.sizeY + (int)regionX;
+            try
+            {
+                ret = mapInfo.heightMap[mapIndex];
+            }
+            catch
+            {
+                // Sometimes they give us wonky values of X and Y. Give a warning and return something.
+                PhysicsScene.Logger.WarnFormat("{0} Bad request for terrain height. terrainBase={1}, x={2}, y={3}",
+                                    LogHeader, terrainBaseXY, regionX, regionY);
+                ret = HEIGHT_GETHEIGHT_RET;
+            }
+            // DetailLog("{0},BSTerrainManager.GetTerrainHeightAtXY,bX={1},baseY={2},szX={3},szY={4},regX={5},regY={6},index={7},ht={8}",
+            //         BSScene.DetailLogZero, offsetX, offsetY, mapInfo.sizeX, mapInfo.sizeY, regionX, regionY, mapIndex, ret);
+        }
+        else
+        {
+            PhysicsScene.Logger.ErrorFormat("{0} GetTerrainHeightAtXY: terrain not found: region={1}, x={2}, y={3}",
+                    LogHeader, PhysicsScene.RegionName, tX, tY);
+        }
+        m_terrainModified = false;
+        lastHeight = ret;
+        return ret;
+    }
+
+    // Although no one seems to check this, I do support combining.
+    public bool SupportsCombining()
+    {
+        return true;
+    }
+
+    // This routine is called two ways:
+    //    One with 'offset' and 'pScene' zero and null but 'extents' giving the maximum
+    //        extent of the combined regions. This is to inform the parent of the size
+    //        of the combined regions.
+    //    and one with 'offset' as the offset of the child region to the base region,
+    //        'pScene' pointing to the parent and 'extents' of zero. This informs the
+    //        child of its relative base and new parent.
+    public void Combine(PhysicsScene pScene, Vector3 offset, Vector3 extents)
+    {
+        m_worldOffset = offset;
+        m_worldMax = extents;
+        MegaRegionParentPhysicsScene = pScene;
+        if (pScene != null)
+        {
+            // We are a child.
+            // We want m_worldMax to be the highest coordinate of our piece of terrain.
+            m_worldMax = offset + DefaultRegionSize;
+        }
+        DetailLog("{0},BSTerrainManager.Combine,offset={1},extents={2},wOffset={3},wMax={4}",
+                        BSScene.DetailLogZero, offset, extents, m_worldOffset, m_worldMax);
+    }
+
+    // Unhook all the combining that I know about.
+    public void UnCombine(PhysicsScene pScene)
+    {
+        // Just like ODE, for the moment a NOP
+        DetailLog("{0},BSTerrainManager.UnCombine", BSScene.DetailLogZero);
+    }
+
+
+    private void DetailLog(string msg, params Object[] args)
+    {
+        PhysicsScene.PhysicsLogging.Write(msg, args);
+    }
+}
+}
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BulletSimAPI.cs b/OpenSim/Region/Physics/BulletSPlugin/BulletSimAPI.cs
index 504bd3c..702bd77 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BulletSimAPI.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BulletSimAPI.cs
@@ -33,38 +33,153 @@ using OpenMetaverse;
 namespace OpenSim.Region.Physics.BulletSPlugin {
 
 // Classes to allow some type checking for the API
+// These hold pointers to allocated objects in the unmanaged space.
+
+// The physics engine controller class created at initialization
 public struct BulletSim
 {
-    public BulletSim(uint id, BSScene bss, IntPtr xx) { ID = id; scene = bss;  Ptr = xx; }
-    public uint ID;
+    public BulletSim(uint worldId, BSScene bss, IntPtr xx)
+    {
+        ptr = xx;
+        worldID = worldId;
+        physicsScene = bss;
+    }
+    public IntPtr ptr;
+    public uint worldID;
     // The scene is only in here so very low level routines have a handle to print debug/error messages
-    public BSScene scene;
-    public IntPtr Ptr;
+    public BSScene physicsScene;
 }
 
+// An allocated Bullet btRigidBody
 public struct BulletBody
 {
-    public BulletBody(uint id, IntPtr xx) { ID = id;  Ptr = xx; }
-    public IntPtr Ptr;
+    public BulletBody(uint id, IntPtr xx)
+    {
+        ID = id;
+        ptr = xx;
+        collisionFilter = 0;
+        collisionMask = 0;
+    }
+    public IntPtr ptr;
     public uint ID;
+    public CollisionFilterGroups collisionFilter;
+    public CollisionFilterGroups collisionMask;
+    public override string ToString()
+    {
+        StringBuilder buff = new StringBuilder();
+        buff.Append("<id=");
+        buff.Append(ID.ToString());
+        buff.Append(",p=");
+        buff.Append(ptr.ToString("X"));
+        if (collisionFilter != 0 || collisionMask != 0)
+        {
+            buff.Append(",f=");
+            buff.Append(collisionFilter.ToString("X"));
+            buff.Append(",m=");
+            buff.Append(collisionMask.ToString("X"));
+        }
+        buff.Append(">");
+        return buff.ToString();
+    }
+}
+
+public struct BulletShape
+{
+    public BulletShape(IntPtr xx)
+    {
+        ptr = xx;
+        type=ShapeData.PhysicsShapeType.SHAPE_UNKNOWN;
+        shapeKey = 0;
+        isNativeShape = false;
+    }
+    public BulletShape(IntPtr xx, ShapeData.PhysicsShapeType typ)
+    {
+        ptr = xx;
+        type = typ;
+        shapeKey = 0;
+        isNativeShape = false;
+    }
+    public IntPtr ptr;
+    public ShapeData.PhysicsShapeType type;
+    public System.UInt64 shapeKey;
+    public bool isNativeShape;
+    public override string ToString()
+    {
+        StringBuilder buff = new StringBuilder();
+        buff.Append("<p=");
+        buff.Append(ptr.ToString("X"));
+        buff.Append(",s=");
+        buff.Append(type.ToString());
+        buff.Append(",k=");
+        buff.Append(shapeKey.ToString("X"));
+        buff.Append(",n=");
+        buff.Append(isNativeShape.ToString());
+        buff.Append(">");
+        return buff.ToString();
+    }
 }
 
+    // Constraint type values as defined by Bullet
+public enum ConstraintType : int
+{
+        POINT2POINT_CONSTRAINT_TYPE = 3,
+        HINGE_CONSTRAINT_TYPE,
+        CONETWIST_CONSTRAINT_TYPE,
+        D6_CONSTRAINT_TYPE,
+        SLIDER_CONSTRAINT_TYPE,
+        CONTACT_CONSTRAINT_TYPE,
+        D6_SPRING_CONSTRAINT_TYPE,
+        MAX_CONSTRAINT_TYPE
+}
+
+// An allocated Bullet btConstraint
 public struct BulletConstraint
 {
-    public BulletConstraint(IntPtr xx) { Ptr = xx; }
+    public BulletConstraint(IntPtr xx)
+    {
+        ptr = xx;
+    }
+    public IntPtr ptr;
+}
+
+// An allocated HeightMapThing which holds various heightmap info.
+// Made a class rather than a struct so there would be only one
+//      instance of this and C# will pass around pointers rather
+//      than making copies.
+public class BulletHeightMapInfo
+{
+    public BulletHeightMapInfo(uint id, float[] hm, IntPtr xx) {
+        ID = id;
+        Ptr = xx;
+        heightMap = hm;
+        terrainRegionBase = new Vector2(0f, 0f);
+        minCoords = new Vector3(100f, 100f, 25f);
+        maxCoords = new Vector3(101f, 101f, 26f);
+        minZ = maxZ = 0f;
+        sizeX = sizeY = 256f;
+    }
+    public uint ID;
     public IntPtr Ptr;
+    public float[] heightMap;
+    public Vector2 terrainRegionBase;
+    public Vector3 minCoords;
+    public Vector3 maxCoords;
+    public float sizeX, sizeY;
+    public float minZ, maxZ;
+    public BulletShape terrainShape;
+    public BulletBody terrainBody;
 }
 
 // ===============================================================================
 [StructLayout(LayoutKind.Sequential)]
-public struct ConvexHull 
+public struct ConvexHull
 {
         Vector3 Offset;
         int VertexCount;
         Vector3[] Vertices;
 }
 [StructLayout(LayoutKind.Sequential)]
-public struct ShapeData 
+public struct ShapeData
 {
     public enum PhysicsShapeType
     {
@@ -75,7 +190,11 @@ public struct ShapeData
                 SHAPE_CYLINDER  = 4,
                 SHAPE_SPHERE    = 5,
                 SHAPE_MESH      = 6,
-                SHAPE_HULL      = 7
+                SHAPE_HULL      = 7,
+        // following defined by BulletSim
+                SHAPE_GROUNDPLANE  = 20,
+                SHAPE_TERRAIN   = 21,
+                SHAPE_COMPOUND  = 22,
     };
     public uint ID;
     public PhysicsShapeType Type;
@@ -91,13 +210,25 @@ public struct ShapeData
     public float Restitution;
     public float Collidable;    // true of things bump into this
     public float Static;        // true if a static object. Otherwise gravity, etc.
+    public float Solid;         // true if object cannot be passed through
+    public Vector3 Size;
 
     // note that bools are passed as floats since bool size changes by language and architecture
     public const float numericTrue = 1f;
     public const float numericFalse = 0f;
+
+    // The native shapes have predefined shape hash keys
+    public enum FixedShapeKey : ulong
+    {
+        KEY_BOX         = 1,
+        KEY_SPHERE      = 2,
+        KEY_CONE        = 3,
+        KEY_CYLINDER    = 4,
+        KEY_CAPSULE     = 5,
+    }
 }
 [StructLayout(LayoutKind.Sequential)]
-public struct SweepHit 
+public struct SweepHit
 {
     public uint ID;
     public float Fraction;
@@ -153,6 +284,7 @@ public struct ConfigurationParameters
     public float terrainHitFraction;
     public float terrainRestitution;
     public float avatarFriction;
+    public float avatarStandingFriction;
     public float avatarDensity;
     public float avatarRestitution;
     public float avatarCapsuleRadius;
@@ -168,18 +300,45 @@ public struct ConfigurationParameters
         public float shouldEnableFrictionCaching;
         public float numberOfSolverIterations;
 
+    public float linksetImplementation;
     public float linkConstraintUseFrameOffset;
     public float linkConstraintEnableTransMotor;
     public float linkConstraintTransMotorMaxVel;
     public float linkConstraintTransMotorMaxForce;
     public float linkConstraintERP;
     public float linkConstraintCFM;
+    public float linkConstraintSolverIterations;
+
+    public float physicsLoggingFrames;
 
     public const float numericTrue = 1f;
     public const float numericFalse = 0f;
 }
 
-// Values used by Bullet and BulletSim to control collisions
+
+// The states a bullet collision object can have
+public enum ActivationState : uint
+{
+    ACTIVE_TAG = 1,
+    ISLAND_SLEEPING,
+    WANTS_DEACTIVATION,
+    DISABLE_DEACTIVATION,
+    DISABLE_SIMULATION,
+}
+
+public enum CollisionObjectTypes : int
+{
+    CO_COLLISION_OBJECT             = 1 << 0,
+    CO_RIGID_BODY                   = 1 << 1,
+    CO_GHOST_OBJECT                 = 1 << 2,
+    CO_SOFT_BODY                    = 1 << 3,
+    CO_HF_FLUID                     = 1 << 4,
+    CO_USER_TYPE                    = 1 << 5,
+}
+
+// Values used by Bullet and BulletSim to control object properties.
+// Bullet's "CollisionFlags" has more to do with operations on the
+//    object (if collisions happen, if gravity effects it, ...).
 public enum CollisionFlags : uint
 {
     CF_STATIC_OBJECT                 = 1 << 0,
@@ -191,9 +350,54 @@ public enum CollisionFlags : uint
     CF_DISABLE_SPU_COLLISION_PROCESS = 1 << 6,
     // Following used by BulletSim to control collisions
     BS_SUBSCRIBE_COLLISION_EVENTS    = 1 << 10,
-    BS_VOLUME_DETECT_OBJECT          = 1 << 11,
-    BS_PHANTOM_OBJECT                = 1 << 12,
-    BS_PHYSICAL_OBJECT               = 1 << 13,
+    BS_FLOATS_ON_WATER               = 1 << 11,
+    BS_NONE                          = 0,
+    BS_ALL                           = 0xFFFFFFFF,
+
+    // These are the collision flags switched depending on physical state.
+    // The other flags are used for other things and should not be fooled with.
+    BS_ACTIVE = CF_STATIC_OBJECT
+                | CF_KINEMATIC_OBJECT
+                | CF_NO_CONTACT_RESPONSE
+};
+
+// Values for collisions groups and masks
+public enum CollisionFilterGroups : uint
+{
+    // Don't use the bit definitions!!  Define the use in a
+    //   filter/mask definition below. This way collision interactions
+    //   are more easily debugged.
+    BNoneFilter              = 0,
+    BDefaultFilter           = 1 << 0,
+    BStaticFilter            = 1 << 1,
+    BKinematicFilter         = 1 << 2,
+    BDebrisFilter            = 1 << 3,
+    BSensorTrigger           = 1 << 4,
+    BCharacterFilter         = 1 << 5,
+    BAllFilter               = 0xFFFFFFFF,
+    // Filter groups defined by BulletSim
+    BGroundPlaneFilter       = 1 << 10,
+    BTerrainFilter           = 1 << 11,
+    BRaycastFilter           = 1 << 12,
+    BSolidFilter             = 1 << 13,
+    BLinksetFilter           = 1 << 14,
+
+    // The collsion filters and masked are defined in one place -- don't want them scattered
+    AvatarFilter            = BCharacterFilter,
+    AvatarMask              = BAllFilter,
+    ObjectFilter            = BSolidFilter,
+    ObjectMask              = BAllFilter,
+    StaticObjectFilter      = BStaticFilter,
+    StaticObjectMask        = BAllFilter,
+    LinksetFilter           = BLinksetFilter,
+    LinksetMask             = BAllFilter & ~BLinksetFilter,
+    VolumeDetectFilter      = BSensorTrigger,
+    VolumeDetectMask        = ~BSensorTrigger,
+    TerrainFilter           = BTerrainFilter,
+    TerrainMask             = BAllFilter & ~BStaticFilter,
+    GroundPlaneFilter       = BGroundPlaneFilter,
+    GroundPlaneMask         = BAllFilter
+
 };
 
 // CFM controls the 'hardness' of the constraint. 0=fixed, 0..1=violatable. Default=0
@@ -221,14 +425,23 @@ public enum ConstraintParamAxis : int
 // ===============================================================================
 static class BulletSimAPI {
 
+// Link back to the managed code for outputting log messages
+[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+public delegate void DebugLogCallback([MarshalAs(UnmanagedType.LPStr)]string msg);
+
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 [return: MarshalAs(UnmanagedType.LPStr)]
 public static extern string GetVersion();
 
+/* Remove the linkage to the old api methods
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern uint Initialize(Vector3 maxPosition, IntPtr parms, 
-                        int maxCollisions, IntPtr collisionArray, 
-                        int maxUpdates, IntPtr updateArray);
+public static extern uint Initialize(Vector3 maxPosition, IntPtr parms,
+                        int maxCollisions, IntPtr collisionArray,
+                        int maxUpdates, IntPtr updateArray,
+                        DebugLogCallback logRoutine);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void CreateInitialGroundPlaneAndTerrain(uint worldID);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern void SetHeightmap(uint worldID, [MarshalAs(UnmanagedType.LPArray)] float[] heightMap);
@@ -242,19 +455,19 @@ public static extern bool UpdateParameter(uint worldID, uint localID,
 
 // ===============================================================================
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern int PhysicsStep(uint worldID, float timeStep, int maxSubSteps, float fixedTimeStep, 
-                        out int updatedEntityCount, 
+public static extern int PhysicsStep(uint worldID, float timeStep, int maxSubSteps, float fixedTimeStep,
+                        out int updatedEntityCount,
                         out IntPtr updatedEntitiesPtr,
                         out int collidersCount,
                         out IntPtr collidersPtr);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool CreateHull(uint worldID, System.UInt64 meshKey, 
+public static extern bool CreateHull(uint worldID, System.UInt64 meshKey,
                             int hullCount, [MarshalAs(UnmanagedType.LPArray)] float[] hulls
     );
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool CreateMesh(uint worldID, System.UInt64 meshKey, 
+public static extern bool CreateMesh(uint worldID, System.UInt64 meshKey,
                             int indexCount, [MarshalAs(UnmanagedType.LPArray)] int[] indices,
                             int verticesCount, [MarshalAs(UnmanagedType.LPArray)] float[] vertices
     );
@@ -268,23 +481,6 @@ public static extern bool DestroyMesh(uint worldID, System.UInt64 meshKey);
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern bool CreateObject(uint worldID, ShapeData shapeData);
 
-/*  Remove old functionality
-[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern void CreateLinkset(uint worldID, int objectCount, ShapeData[] shapeDatas);
-
-[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern void AddConstraint(uint worldID, uint id1, uint id2, 
-                        Vector3 frame1, Quaternion frame1rot,
-                        Vector3 frame2, Quaternion frame2rot,
-                        Vector3 lowLinear, Vector3 hiLinear, Vector3 lowAngular, Vector3 hiAngular);
-
-[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool RemoveConstraintByID(uint worldID, uint id1);
-
-[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool RemoveConstraint(uint worldID, uint id1, uint id2);
- */
-
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern Vector3 GetObjectPosition(uint WorldID, uint id);
 
@@ -300,6 +496,7 @@ public static extern bool SetObjectVelocity(uint worldID, uint id, Vector3 veloc
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern bool SetObjectAngularVelocity(uint worldID, uint id, Vector3 angularVelocity);
 
+// Set the current force acting on the object
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern bool SetObjectForce(uint worldID, uint id, Vector3 force);
 
@@ -340,10 +537,8 @@ public static extern Vector3 RecoverFromPenetration(uint worldID, uint id);
 // ===============================================================================
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern void DumpBulletStatistics();
-
+*/
 // Log a debug message
-[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-public delegate void DebugLogCallback([MarshalAs(UnmanagedType.LPStr)]string msg);
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern void SetDebugLogCallback(DebugLogCallback callback);
 
@@ -358,6 +553,7 @@ public static extern void SetDebugLogCallback(DebugLogCallback callback);
 // The names have a "2" tacked on. This will be removed as the C# code gets rebuilt
 //    and the old code is removed.
 
+// Functions use while converting from API1 to API2. Can be removed when totally converted.
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern IntPtr GetSimHandle2(uint worldID);
 
@@ -368,23 +564,25 @@ public static extern IntPtr GetBodyHandleWorldID2(uint worldID, uint id);
 public static extern IntPtr GetBodyHandle2(IntPtr world, uint id);
 
 // ===============================================================================
+// Initialization and simulation
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern IntPtr Initialize2(Vector3 maxPosition, IntPtr parms,
                                                                                         int maxCollisions,  IntPtr collisionArray,
-                                                                                        int maxUpdates, IntPtr updateArray);
+                                                                                        int maxUpdates, IntPtr updateArray,
+                                            DebugLogCallback logRoutine);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern bool UpdateParameter2(IntPtr world, uint localID, String parm, float value);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern void SetHeightmap2(IntPtr world, float[] heightmap);
+public static extern void SetHeightMap2(IntPtr world, float[] heightmap);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern void Shutdown2(IntPtr sim);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern int PhysicsStep2(IntPtr world, float timeStep, int maxSubSteps, float fixedTimeStep,
-                        out int updatedEntityCount, 
+                        out int updatedEntityCount,
                         out IntPtr updatedEntitiesPtr,
                         out int collidersCount,
                         out IntPtr collidersPtr);
@@ -392,24 +590,99 @@ public static extern int PhysicsStep2(IntPtr world, float timeStep, int maxSubSt
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern bool PushUpdate2(IntPtr obj);
 
-/*
+// =====================================================================================
+// Mesh, hull, shape and body creation helper routines
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern IntPtr CreateMesh2(IntPtr world, int indicesCount, int* indices, int verticesCount, float* vertices );
+public static extern IntPtr CreateMeshShape2(IntPtr world,
+                int indicesCount, [MarshalAs(UnmanagedType.LPArray)] int[] indices,
+                int verticesCount, [MarshalAs(UnmanagedType.LPArray)] float[] vertices );
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool BuildHull2(IntPtr world, IntPtr mesh);
+public static extern IntPtr CreateHullShape2(IntPtr world,
+                int hullCount, [MarshalAs(UnmanagedType.LPArray)] float[] hulls);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool ReleaseHull2(IntPtr world, IntPtr mesh);
+public static extern IntPtr BuildHullShapeFromMesh2(IntPtr world, IntPtr meshShape);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool DestroyMesh2(IntPtr world, IntPtr mesh);
+public static extern IntPtr BuildNativeShape2(IntPtr world, ShapeData shapeData);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern IntPtr CreateObject2(IntPtr world, ShapeData shapeData);
-*/
+public static extern bool IsNativeShape2(IntPtr shape);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr BuildCapsuleShape2(IntPtr world, float radius, float height, Vector3 scale);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr CreateCompoundShape2(IntPtr sim, bool enableDynamicAabbTree);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern int GetNumberOfCompoundChildren2(IntPtr cShape);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void AddChildShapeToCompoundShape2(IntPtr cShape, IntPtr addShape, Vector3 pos, Quaternion rot);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr GetChildShapeFromCompoundShapeIndex2(IntPtr cShape, int indx);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr RemoveChildShapeFromCompoundShapeIndex2(IntPtr cShape, int indx);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void RemoveChildShapeFromCompoundShape2(IntPtr cShape, IntPtr removeShape);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr DuplicateCollisionShape2(IntPtr sim, IntPtr srcShape, uint id);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr CreateBodyFromShapeAndInfo2(IntPtr sim, IntPtr shape, uint id, IntPtr constructionInfo);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool DeleteCollisionShape2(IntPtr world, IntPtr shape);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern int GetBodyType2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr CreateBodyFromShape2(IntPtr sim, IntPtr shape, uint id, Vector3 pos, Quaternion rot);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr CreateBodyWithDefaultMotionState2(IntPtr shape, uint id, Vector3 pos, Quaternion rot);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr CreateGhostFromShape2(IntPtr sim, IntPtr shape, uint id, Vector3 pos, Quaternion rot);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr AllocateBodyInfo2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void ReleaseBodyInfo2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void DestroyObject2(IntPtr sim, IntPtr obj);
+
+// =====================================================================================
+// Terrain creation and helper routines
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr CreateHeightMapInfo2(IntPtr sim, uint id, Vector3 minCoords, Vector3 maxCoords,
+        [MarshalAs(UnmanagedType.LPArray)] float[] heightMap, float collisionMargin);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr FillHeightMapInfo2(IntPtr sim, IntPtr mapInfo, uint id, Vector3 minCoords, Vector3 maxCoords,
+        [MarshalAs(UnmanagedType.LPArray)] float[] heightMap, float collisionMargin);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool ReleaseHeightMapInfo2(IntPtr heightMapInfo);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr CreateGroundPlaneShape2(uint id, float height, float collisionMargin);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr CreateTerrainShape2(IntPtr mapInfo);
+
+// =====================================================================================
+// Constraint creation and helper routines
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern IntPtr Create6DofConstraint2(IntPtr world, IntPtr obj1, IntPtr obj2,
                     Vector3 frame1loc, Quaternion frame1rot,
                     Vector3 frame2loc, Quaternion frame2rot,
@@ -433,7 +706,7 @@ public static extern void SetConstraintEnable2(IntPtr constrain, float numericTr
 public static extern void SetConstraintNumSolverIterations2(IntPtr constrain, float iterations);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetFrames2(IntPtr constrain, 
+public static extern bool SetFrames2(IntPtr constrain,
                 Vector3 frameA, Quaternion frameArot, Vector3 frameB, Quaternion frameBrot);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
@@ -460,11 +733,108 @@ public static extern bool SetConstraintParam2(IntPtr constrain, ConstraintParams
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern bool DestroyConstraint2(IntPtr world, IntPtr constrain);
 
+// =====================================================================================
+// btCollisionWorld entries
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern Vector3 AddObjectToWorld2(IntPtr world, IntPtr obj);
+public static extern void UpdateSingleAabb2(IntPtr world, IntPtr obj);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern Vector3 RemoveObjectFromWorld2(IntPtr world, IntPtr obj);
+public static extern void UpdateAabbs2(IntPtr world);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool GetForceUpdateAllAabbs2(IntPtr world);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetForceUpdateAllAabbs2(IntPtr world, bool force);
+
+// =====================================================================================
+// btDynamicsWorld entries
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool AddObjectToWorld2(IntPtr world, IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool RemoveObjectFromWorld2(IntPtr world, IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool AddConstraintToWorld2(IntPtr world, IntPtr constrain, bool disableCollisionsBetweenLinkedObjects);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool RemoveConstraintFromWorld2(IntPtr world, IntPtr constrain);
+// =====================================================================================
+// btCollisionObject entries
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern Vector3 GetAnisotripicFriction2(IntPtr constrain);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern Vector3 SetAnisotripicFriction2(IntPtr constrain, Vector3 frict);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool HasAnisotripicFriction2(IntPtr constrain);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetContactProcessingThreshold2(IntPtr obj, float val);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern float GetContactProcessingThreshold2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool IsStaticObject2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool IsKinematicObject2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool IsStaticOrKinematicObject2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool HasContactResponse2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetCollisionShape2(IntPtr sim, IntPtr obj, IntPtr shape);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr GetCollisionShape2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern int GetActivationState2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetActivationState2(IntPtr obj, int state);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetDeactivationTime2(IntPtr obj, float dtime);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern float GetDeactivationTime2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void ForceActivationState2(IntPtr obj, ActivationState state);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void Activate2(IntPtr obj, bool forceActivation);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool IsActive2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetRestitution2(IntPtr obj, float val);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern float GetRestitution2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetFriction2(IntPtr obj, float val);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern float GetFriction2(IntPtr obj);
+
+    /* Haven't defined the type 'Transform'
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern Transform GetWorldTransform2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void setWorldTransform2(IntPtr obj, Transform trans);
+     */
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern Vector3 GetPosition2(IntPtr obj);
@@ -473,85 +843,290 @@ public static extern Vector3 GetPosition2(IntPtr obj);
 public static extern Quaternion GetOrientation2(IntPtr obj);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetTranslation2(IntPtr obj, Vector3 position, Quaternion rotation);
+public static extern void SetTranslation2(IntPtr obj, Vector3 position, Quaternion rotation);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetVelocity2(IntPtr obj, Vector3 velocity);
+public static extern IntPtr GetBroadphaseHandle2(IntPtr obj);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetAngularVelocity2(IntPtr obj, Vector3 angularVelocity);
+public static extern void SetBroadphaseHandle2(IntPtr obj, IntPtr handle);
 
+    /*
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetObjectForce2(IntPtr obj, Vector3 force);
+public static extern Transform GetInterpolationWorldTransform2(IntPtr obj);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool AddObjectForce2(IntPtr obj, Vector3 force);
+public static extern void SetInterpolationWorldTransform2(IntPtr obj, Transform trans);
+     */
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetCcdMotionThreshold2(IntPtr obj, float val);
+public static extern void SetInterpolationLinearVelocity2(IntPtr obj, Vector3 vel);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetCcdSweepSphereRadius2(IntPtr obj, float val);
+public static extern void SetInterpolationAngularVelocity2(IntPtr obj, Vector3 vel);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetDamping2(IntPtr obj, float lin_damping, float ang_damping);
+public static extern void SetInterpolationVelocity2(IntPtr obj, Vector3 linearVel, Vector3 angularVel);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetDeactivationTime2(IntPtr obj, float val);
+public static extern float GetHitFraction2(IntPtr obj);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetSleepingThresholds2(IntPtr obj, float lin_threshold, float ang_threshold);
+public static extern void SetHitFraction2(IntPtr obj, float val);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetContactProcessingThreshold2(IntPtr obj, float val);
+public static extern CollisionFlags GetCollisionFlags2(IntPtr obj);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetFriction2(IntPtr obj, float val);
+public static extern CollisionFlags SetCollisionFlags2(IntPtr obj, CollisionFlags flags);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetRestitution2(IntPtr obj, float val);
+public static extern CollisionFlags AddToCollisionFlags2(IntPtr obj, CollisionFlags flags);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetLinearVelocity2(IntPtr obj, Vector3 val);
+public static extern CollisionFlags RemoveFromCollisionFlags2(IntPtr obj, CollisionFlags flags);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetInterpolation2(IntPtr obj, Vector3 lin, Vector3 ang);
+public static extern float GetCcdMotionThreshold2(IntPtr obj);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern CollisionFlags GetCollisionFlags2(IntPtr obj);
+public static extern void SetCcdMotionThreshold2(IntPtr obj, float val);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern float GetCcdSweptSphereRadius2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetCcdSweptSphereRadius2(IntPtr obj, float val);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr GetUserPointer2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetUserPointer2(IntPtr obj, IntPtr val);
+
+// =====================================================================================
+// btRigidBody entries
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void ApplyGravity2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetGravity2(IntPtr obj, Vector3 val);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern Vector3 GetGravity2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetDamping2(IntPtr obj, float lin_damping, float ang_damping);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern float GetLinearDamping2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern float GetAngularDamping2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern float GetLinearSleepingThreshold2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern float GetAngularSleepingThreshold2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void ApplyDamping2(IntPtr obj, float timeStep);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetMassProps2(IntPtr obj, float mass, Vector3 inertia);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern Vector3 GetLinearFactor2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetLinearFactor2(IntPtr obj, Vector3 factor);
+
+    /*
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetCenterOfMassTransform2(IntPtr obj, Transform trans);
+     */
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetCenterOfMassByPosRot2(IntPtr obj, Vector3 pos, Quaternion rot);
+
+// Add a force to the object as if its mass is one.
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void ApplyCentralForce2(IntPtr obj, Vector3 force);
+
+// Set the force being applied to the object as if its mass is one.
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetObjectForce2(IntPtr obj, Vector3 force);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern Vector3 GetTotalForce2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern Vector3 GetTotalTorque2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern Vector3 GetInvInertiaDiagLocal2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetInvInertiaDiagLocal2(IntPtr obj, Vector3 inert);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetSleepingThresholds2(IntPtr obj, float lin_threshold, float ang_threshold);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void ApplyTorque2(IntPtr obj, Vector3 torque);
+
+// Apply force at the given point. Will add torque to the object.
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void ApplyForce2(IntPtr obj, Vector3 force, Vector3 pos);
+
+// Apply impulse to the object. Same as "ApplycentralForce" but force scaled by object's mass.
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void ApplyCentralImpulse2(IntPtr obj, Vector3 imp);
+
+// Apply impulse to the object's torque. Force is scaled by object's mass.
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void ApplyTorqueImpulse2(IntPtr obj, Vector3 imp);
+
+// Apply impulse at the point given. For is scaled by object's mass and effects both linear and angular forces.
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void ApplyImpulse2(IntPtr obj, Vector3 imp, Vector3 pos);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void ClearForces2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void ClearAllForces2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void UpdateInertiaTensor2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern Vector3 GetCenterOfMassPosition2(IntPtr obj);
+
+    /*
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern Transform GetCenterOfMassTransform2(IntPtr obj);
+     */
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern Vector3 GetLinearVelocity2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern Vector3 GetAngularVelocity2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetLinearVelocity2(IntPtr obj, Vector3 val);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetAngularVelocity2(IntPtr obj, Vector3 angularVelocity);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern Vector3 GetVelocityInLocalPoint2(IntPtr obj, Vector3 pos);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void Translate2(IntPtr obj, Vector3 trans);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void UpdateDeactivation2(IntPtr obj, float timeStep);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool WantsSleeping2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetAngularFactor2(IntPtr obj, float factor);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetAngularFactorV2(IntPtr obj, Vector3 factor);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern Vector3 GetAngularFactor2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool IsInWorld2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void AddConstraintRef2(IntPtr obj, IntPtr constrain);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void RemoveConstraintRef2(IntPtr obj, IntPtr constrain);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr GetConstraintRef2(IntPtr obj, int index);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern int GetNumConstraintRefs2(IntPtr obj);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void SetCollisionFilterMask2(IntPtr body, uint filter, uint mask);
+
+// =====================================================================================
+// btCollisionShape entries
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern float GetAngularMotionDisc2(IntPtr shape);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern float GetContactBreakingThreshold2(IntPtr shape, float defaultFactor);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool IsPolyhedral2(IntPtr shape);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool IsConvex2d2(IntPtr shape);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool IsConvex2(IntPtr shape);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool IsNonMoving2(IntPtr shape);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool IsConcave2(IntPtr shape);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool IsCompound2(IntPtr shape);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool IsSoftBody2(IntPtr shape);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool IsInfinite2(IntPtr shape);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern IntPtr SetCollisionFlags2(IntPtr obj, CollisionFlags flags);
+public static extern void SetLocalScaling2(IntPtr shape, Vector3 scale);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern IntPtr AddToCollisionFlags2(IntPtr obj, CollisionFlags flags);
+public static extern Vector3 GetLocalScaling2(IntPtr shape);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern IntPtr RemoveFromCollisionFlags2(IntPtr obj, CollisionFlags flags);
+public static extern Vector3 CalculateLocalInertia2(IntPtr shape, float mass);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetMassProps2(IntPtr obj, float mass, Vector3 inertia);
+public static extern int GetShapeType2(IntPtr shape);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool UpdateInertiaTensor2(IntPtr obj);
+public static extern void SetMargin2(IntPtr shape, float val);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetGravity2(IntPtr obj, Vector3 val);
+public static extern float GetMargin2(IntPtr shape);
 
+// =====================================================================================
+// Debugging
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern IntPtr ClearForces2(IntPtr obj);
+public static extern void DumpRigidBody2(IntPtr sim, IntPtr collisionObject);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern IntPtr ClearAllForces2(IntPtr obj);
+public static extern void DumpCollisionShape2(IntPtr sim, IntPtr collisionShape);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool SetMargin2(IntPtr obj, float val);
+public static extern void DumpConstraint2(IntPtr sim, IntPtr constrain);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool UpdateSingleAabb2(IntPtr world, IntPtr obj);
+public static extern void DumpAllInfo2(IntPtr sim);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern bool DestroyObject2(IntPtr world, uint id);
+public static extern void DumpMapInfo2(IntPtr sim, IntPtr manInfo);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern void DumpPhysicsStatistics2(IntPtr sim);
diff --git a/OpenSim/Region/Physics/Manager/PhysicsActor.cs b/OpenSim/Region/Physics/Manager/PhysicsActor.cs
index 14f65b8..5af6373 100644
--- a/OpenSim/Region/Physics/Manager/PhysicsActor.cs
+++ b/OpenSim/Region/Physics/Manager/PhysicsActor.cs
@@ -340,6 +340,12 @@ namespace OpenSim.Region.Physics.Manager
         /// Getting this returns the velocity calculated by physics scene updates, using factors such as target velocity,
         /// time to accelerate and collisions.
         /// </remarks>
+        public virtual Vector3 TargetVelocity
+        {
+            get { return Velocity; }
+            set { Velocity = value; }
+        }
+
         public abstract Vector3 Velocity { get; set; }
 
         public abstract Vector3 Torque { get; set; }
diff --git a/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs b/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs
index f3b0630..c736557 100644
--- a/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs
+++ b/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs
@@ -100,7 +100,7 @@ namespace OpenSim.Region.Physics.OdePlugin
         private bool m_hackSentFly = false;
         private int m_requestedUpdateFrequency = 0;
         private Vector3 m_taintPosition;
-
+        internal bool m_avatarplanted = false;
         /// <summary>
         /// Hold set forces so we can process them outside physics calculations.  This prevents race conditions if we set force
         /// while calculatios are going on
@@ -413,7 +413,7 @@ namespace OpenSim.Region.Physics.OdePlugin
             set
             {
                 m_iscollidingObj = value;
-                if (value)
+                if (value && !m_avatarplanted)
                     m_pidControllerActive = false;
                 else
                     m_pidControllerActive = true;
diff --git a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
index 2e78de5..a59f63f 100644
--- a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
+++ b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
@@ -67,6 +67,14 @@ namespace OpenSim.Region.Physics.OdePlugin
         private int m_expectedCollisionContacts = 0;
 
         /// <summary>
+        /// Gets collide bits so that we can still perform land collisions if a mesh fails to load.
+        /// </summary>
+        private int BadMeshAssetCollideBits
+        {
+            get { return m_isphysical ? (int)CollisionCategories.Land : 0; }
+        }
+
+        /// <summary>
         /// Is this prim subject to physics?  Even if not, it's still solid for collision purposes.
         /// </summary>
         public override bool IsPhysical
@@ -156,7 +164,7 @@ namespace OpenSim.Region.Physics.OdePlugin
 
         private PrimitiveBaseShape _pbs;
         private OdeScene _parent_scene;
-
+        
         /// <summary>
         /// The physics space which contains prim geometries
         /// </summary>
@@ -3333,7 +3341,6 @@ Console.WriteLine(" JointCreateFixed");
             m_material = pMaterial;
         }
 
-
         private void CheckMeshAsset()
         {
             if (_pbs.SculptEntry && !m_assetFailed && _pbs.SculptTexture != UUID.Zero)
@@ -3343,14 +3350,14 @@ Console.WriteLine(" JointCreateFixed");
                     {
                         RequestAssetDelegate assetProvider = _parent_scene.RequestAssetMethod;
                         if (assetProvider != null)
-                            assetProvider(_pbs.SculptTexture, MeshAssetReveived);
+                            assetProvider(_pbs.SculptTexture, MeshAssetReceived);
                     });
             }
         }
 
-        void MeshAssetReveived(AssetBase asset)
+        private void MeshAssetReceived(AssetBase asset)
         {
-            if (asset.Data != null && asset.Data.Length > 0)
+            if (asset != null && asset.Data != null && asset.Data.Length > 0)
             {
                 if (!_pbs.SculptEntry)
                     return;
@@ -3363,6 +3370,12 @@ Console.WriteLine(" JointCreateFixed");
                 m_taintshape = true;
                _parent_scene.AddPhysicsActorTaint(this);
             }
+            else
+            {
+                m_log.WarnFormat(
+                    "[ODE PRIM]: Could not get mesh/sculpt asset {0} for {1} at {2} in {3}",
+                    _pbs.SculptTexture, Name, _position, _parent_scene.Name);
+            }
         }          
     }
-}
\ No newline at end of file
+}
diff --git a/OpenSim/Region/Physics/OdePlugin/OdeScene.cs b/OpenSim/Region/Physics/OdePlugin/OdeScene.cs
index 7a50c4c..d53bd90 100644
--- a/OpenSim/Region/Physics/OdePlugin/OdeScene.cs
+++ b/OpenSim/Region/Physics/OdePlugin/OdeScene.cs
@@ -501,6 +501,8 @@ namespace OpenSim.Region.Physics.OdePlugin
         public int physics_logging_interval = 0;
         public bool physics_logging_append_existing_logfile = false;
 
+        private bool avplanted = false;
+        private bool av_av_collisions_off = false;
 
         public d.Vector3 xyz = new d.Vector3(128.1640f, 128.3079f, 25.7600f);
         public d.Vector3 hpr = new d.Vector3(125.5000f, -17.0000f, 0.0000f);
@@ -644,6 +646,9 @@ namespace OpenSim.Region.Physics.OdePlugin
                     avMovementDivisorWalk = physicsconfig.GetFloat("av_movement_divisor_walk", 1.3f);
                     avMovementDivisorRun = physicsconfig.GetFloat("av_movement_divisor_run", 0.8f);
                     avCapRadius = physicsconfig.GetFloat("av_capsule_radius", 0.37f);
+                    avplanted = physicsconfig.GetBoolean("av_planted", false);
+                    av_av_collisions_off = physicsconfig.GetBoolean("av_av_collisions_off", false);
+
                     IsAvCapsuleTilted = physicsconfig.GetBoolean("av_capsule_tilted", false);
 
                     contactsPerCollision = physicsconfig.GetInt("contacts_per_collision", 80);
@@ -663,6 +668,8 @@ namespace OpenSim.Region.Physics.OdePlugin
                     meshSculptLOD = physicsconfig.GetFloat("mesh_lod", 32f);
                     MeshSculptphysicalLOD = physicsconfig.GetFloat("mesh_physical_lod", 16f);
                     m_filterCollisions = physicsconfig.GetBoolean("filter_collisions", false);
+                    
+                    
 
                     if (Environment.OSVersion.Platform == PlatformID.Unix)
                     {
@@ -1309,6 +1316,10 @@ namespace OpenSim.Region.Physics.OdePlugin
                 if ((p1 is OdePrim) && (((OdePrim)p1).m_isVolumeDetect))
                     skipThisContact = true;   // No collision on volume detect prims
 
+                if (av_av_collisions_off)
+                    if ((p1 is OdeCharacter) && (p2 is OdeCharacter))
+                        skipThisContact = true;
+
                 if (!skipThisContact && (p2 is OdePrim) && (((OdePrim)p2).m_isVolumeDetect))
                     skipThisContact = true;   // No collision on volume detect prims
 
@@ -1972,7 +1983,8 @@ namespace OpenSim.Region.Physics.OdePlugin
 
             newAv.Flying = isFlying;
             newAv.MinimumGroundFlightOffset = minimumGroundFlightOffset;
-            
+            newAv.m_avatarplanted = avplanted;
+
             return newAv;
         }
 
@@ -1987,6 +1999,7 @@ namespace OpenSim.Region.Physics.OdePlugin
 
         internal void AddCharacter(OdeCharacter chr)
         {
+            chr.m_avatarplanted = avplanted;
             if (!_characters.Contains(chr))
             {
                 _characters.Add(chr);
@@ -4307,4 +4320,4 @@ namespace OpenSim.Region.Physics.OdePlugin
             m_stats[ODEPrimUpdateFrameMsStatName] = 0;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs b/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs
index 3144d76..905540d 100644
--- a/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs
+++ b/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs
@@ -39,11 +39,8 @@ using OpenSim.Framework.Console;
 using OpenSim.Region.Physics.Manager;
 using Mono.Addins;
 
-[assembly: Addin("RegionCombinerModule", "0.1")]
-[assembly: AddinDependency("OpenSim", "0.5")]
 namespace OpenSim.Region.RegionCombinerModule
 {
-    [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule")]
     public class RegionCombinerModule : ISharedRegionModule, IRegionCombinerModule
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
@@ -722,21 +719,21 @@ namespace OpenSim.Region.RegionCombinerModule
                 rootConn.ClientEventForwarder = new RegionCombinerClientEventForwarder(rootConn);
     
                 // Sets up the CoarseLocationUpdate forwarder for this root region
-                scene.EventManager.OnNewPresence += SetCourseLocationDelegate;
+                scene.EventManager.OnNewPresence += SetCoarseLocationDelegate;
     
                 // Adds this root region to a dictionary of regions that are connectable
                 m_regions.Add(scene.RegionInfo.originRegionID, rootConn);
             }
         }
 
-        private void SetCourseLocationDelegate(ScenePresence presence)
+        private void SetCoarseLocationDelegate(ScenePresence presence)
         {
-            presence.SetSendCourseLocationMethod(SendCourseLocationUpdates);
+            presence.SetSendCoarseLocationMethod(SendCoarseLocationUpdates);
         }
 
         // This delegate was refactored for non-combined regions.
         // This combined region version will not use the pre-compiled lists of locations and ids
-        private void SendCourseLocationUpdates(UUID sceneId, ScenePresence presence, List<Vector3> coarseLocations, List<UUID> avatarUUIDs)
+        private void SendCoarseLocationUpdates(UUID sceneId, ScenePresence presence, List<Vector3> coarseLocations, List<UUID> avatarUUIDs)
         {
             RegionConnections connectiondata = null; 
             lock (m_regions)
@@ -759,18 +756,18 @@ namespace OpenSim.Region.RegionCombinerModule
                 }
             });
 
-            DistributeCourseLocationUpdates(CoarseLocations, AvatarUUIDs, connectiondata, presence);
+            DistributeCoarseLocationUpdates(CoarseLocations, AvatarUUIDs, connectiondata, presence);
         }
 
-        private void DistributeCourseLocationUpdates(List<Vector3> locations, List<UUID> uuids, 
+        private void DistributeCoarseLocationUpdates(List<Vector3> locations, List<UUID> uuids, 
                                                      RegionConnections connectiondata, ScenePresence rootPresence)
         {
             RegionData[] rdata = connectiondata.ConnectedRegions.ToArray();
             //List<IClientAPI> clients = new List<IClientAPI>();
-            Dictionary<Vector2, RegionCourseLocationStruct> updates = new Dictionary<Vector2, RegionCourseLocationStruct>();
+            Dictionary<Vector2, RegionCoarseLocationStruct> updates = new Dictionary<Vector2, RegionCoarseLocationStruct>();
             
             // Root Region entry
-            RegionCourseLocationStruct rootupdatedata = new RegionCourseLocationStruct();
+            RegionCoarseLocationStruct rootupdatedata = new RegionCoarseLocationStruct();
             rootupdatedata.Locations = new List<Vector3>();
             rootupdatedata.Uuids = new List<UUID>();
             rootupdatedata.Offset = Vector2.Zero;
@@ -784,7 +781,7 @@ namespace OpenSim.Region.RegionCombinerModule
             foreach (RegionData regiondata in rdata)
             {
                 Vector2 offset = new Vector2(regiondata.Offset.X, regiondata.Offset.Y);
-                RegionCourseLocationStruct updatedata = new RegionCourseLocationStruct();
+                RegionCoarseLocationStruct updatedata = new RegionCoarseLocationStruct();
                 updatedata.Locations = new List<Vector3>();
                 updatedata.Uuids = new List<UUID>();
                 updatedata.Offset = offset;
@@ -810,7 +807,7 @@ namespace OpenSim.Region.RegionCombinerModule
                 if (!updates.ContainsKey(offset))
                 {
                     // This shouldn't happen
-                    RegionCourseLocationStruct updatedata = new RegionCourseLocationStruct();
+                    RegionCoarseLocationStruct updatedata = new RegionCoarseLocationStruct();
                     updatedata.Locations = new List<Vector3>();
                     updatedata.Uuids = new List<UUID>();
                     updatedata.Offset = offset;
diff --git a/OpenSim/Region/RegionCombinerModule/RegionCourseLocation.cs b/OpenSim/Region/RegionCombinerModule/RegionCourseLocation.cs
index 53a678f..224ac99 100644
--- a/OpenSim/Region/RegionCombinerModule/RegionCourseLocation.cs
+++ b/OpenSim/Region/RegionCombinerModule/RegionCourseLocation.cs
@@ -33,7 +33,7 @@ using OpenSim.Framework;
 namespace OpenSim.Region.RegionCombinerModule
 {
 
-    struct RegionCourseLocationStruct
+    struct RegionCoarseLocationStruct
     {
         public List<Vector3> Locations;
         public List<UUID> Uuids;
diff --git a/OpenSim/Region/RegionCombinerModule/Resources/RegionCombinerModule.addin.xml b/OpenSim/Region/RegionCombinerModule/Resources/RegionCombinerModule.addin.xml
new file mode 100644
index 0000000..13cb8b6
--- /dev/null
+++ b/OpenSim/Region/RegionCombinerModule/Resources/RegionCombinerModule.addin.xml
@@ -0,0 +1,14 @@
+<Addin id="OpenSim.RegionModules.RegionCombinerModule" version="0.3">
+    <Runtime>
+        <Import assembly="OpenSim.Region.RegionCombinerModule.dll"/>
+    </Runtime>
+
+    <Dependencies>
+        <Addin id="OpenSim" version="0.5" />
+    </Dependencies>
+
+    <Extension path = "/OpenSim/RegionModules">
+        <RegionModule id="RegionCombinerModule" type="OpenSim.Region.RegionCombinerModule.RegionCombinerModule" />
+    </Extension>
+
+</Addin>
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 82de06f..3bbdbe8 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -59,6 +59,7 @@ using GridRegion = OpenSim.Services.Interfaces.GridRegion;
 using PresenceInfo = OpenSim.Services.Interfaces.PresenceInfo;
 using PrimType = OpenSim.Region.Framework.Scenes.PrimType;
 using AssetLandmark = OpenSim.Framework.AssetLandmark;
+using RegionFlags = OpenSim.Framework.RegionFlags;
 
 using LSL_Float = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLFloat;
 using LSL_Integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
@@ -112,6 +113,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         protected Dictionary<UUID, UserInfoCacheEntry> m_userInfoCache =
                 new Dictionary<UUID, UserInfoCacheEntry>();
             protected int EMAIL_PAUSE_TIME = 20;  // documented delay value for smtp.
+        protected ISoundModule m_SoundModule = null;
 
 //        protected Timer m_ShoutSayTimer;
         protected int m_SayShoutCount = 0;
@@ -159,6 +161,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_TransferModule =
                     m_ScriptEngine.World.RequestModuleInterface<IMessageTransferModule>();
             m_UrlModule = m_ScriptEngine.World.RequestModuleInterface<IUrlModule>();
+            m_SoundModule = m_ScriptEngine.World.RequestModuleInterface<ISoundModule>();
 
             AsyncCommands = new AsyncCommandManager(ScriptEngine);
         }
@@ -341,7 +344,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return GetLinkParts(m_host, linkType);
         }
 
-        private List<SceneObjectPart> GetLinkParts(SceneObjectPart part, int linkType)
+        public static List<SceneObjectPart> GetLinkParts(SceneObjectPart part, int linkType)
         {
             List<SceneObjectPart> ret = new List<SceneObjectPart>();
             if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
@@ -426,12 +429,40 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return key;
         }
 
-        // convert a LSL_Rotation to a Quaternion
-        public static Quaternion Rot2Quaternion(LSL_Rotation r)
+        /// <summary>
+        /// Return the UUID of the asset matching the specified key or name
+        /// and asset type.
+        /// </summary>
+        /// <param name="k"></param>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        protected UUID KeyOrName(string k, AssetType type)
         {
-            Quaternion q = new Quaternion((float)r.x, (float)r.y, (float)r.z, (float)r.s);
-            q.Normalize();
-            return q;
+            UUID key;
+
+            if (!UUID.TryParse(k, out key))
+            {
+                TaskInventoryItem item = m_host.Inventory.GetInventoryItem(k);
+                if (item != null && item.Type == (int)type)
+                    key = item.AssetID;
+            }
+            else
+            {
+                lock (m_host.TaskInventory)
+                {
+                    foreach (KeyValuePair<UUID, TaskInventoryItem> item in m_host.TaskInventory)
+                    {
+                        if (item.Value.Type == (int)type && item.Value.Name == k)
+                        {
+                            key = item.Value.ItemID;
+                            break;
+                        }
+                    }
+                }
+            }
+
+
+            return key;
         }
 
         //These are the implementations of the various ll-functions used by the LSL scripts.
@@ -1240,9 +1271,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_Float llGround(LSL_Vector offset)
         {
             m_host.AddScriptLPS(1);
-            Vector3 pos = m_host.GetWorldPosition() + new Vector3((float)offset.x,
-                                                                  (float)offset.y,
-                                                                  (float)offset.z);
+            Vector3 pos = m_host.GetWorldPosition() + (Vector3)offset;
 
             //Get the slope normal.  This gives us the equation of the plane tangent to the slope.
             LSL_Vector vsn = llGroundNormal(offset);
@@ -1492,31 +1521,21 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             if (part == null || part.ParentGroup.IsDeleted)
                 return;
 
-            if (scale.x < 0.01)
-                scale.x = 0.01;
-            if (scale.y < 0.01)
-                scale.y = 0.01;
-            if (scale.z < 0.01)
-                scale.z = 0.01;
-
+            // First we need to check whether or not we need to clamp the size of a physics-enabled prim
             PhysicsActor pa = part.ParentGroup.RootPart.PhysActor;
-
             if (pa != null && pa.IsPhysical)
             {
-                if (scale.x > World.m_maxPhys)
-                    scale.x = World.m_maxPhys;
-                if (scale.y > World.m_maxPhys)
-                    scale.y = World.m_maxPhys;
-                if (scale.z > World.m_maxPhys)
-                    scale.z = World.m_maxPhys;
+                scale.x = Math.Max(World.m_minPhys, Math.Min(World.m_maxPhys, scale.x));
+                scale.y = Math.Max(World.m_minPhys, Math.Min(World.m_maxPhys, scale.y));
+                scale.z = Math.Max(World.m_minPhys, Math.Min(World.m_maxPhys, scale.z));
+            }
+            else
+            {
+                // If not physical, then we clamp the scale to the non-physical min/max
+                scale.x = Math.Max(World.m_minNonphys, Math.Min(World.m_maxNonphys, scale.x));
+                scale.y = Math.Max(World.m_minNonphys, Math.Min(World.m_maxNonphys, scale.y));
+                scale.z = Math.Max(World.m_minNonphys, Math.Min(World.m_maxNonphys, scale.z));
             }
-
-            if (scale.x > World.m_maxNonphys)
-                scale.x = World.m_maxNonphys;
-            if (scale.y > World.m_maxNonphys)
-                scale.y = World.m_maxNonphys;
-            if (scale.z > World.m_maxNonphys)
-                scale.z = World.m_maxNonphys;
 
             Vector3 tmp = part.Scale;
             tmp.X = (float)scale.x;
@@ -1590,7 +1609,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             if (face == ScriptBaseClass.ALL_SIDES)
                 face = SceneObjectPart.ALL_SIDES;
 
-            m_host.SetFaceColor(new Vector3((float)color.x, (float)color.y, (float)color.z), face);
+            m_host.SetFaceColorAlpha(face, color, null);
         }
 
         public void SetTexGen(SceneObjectPart part, int face,int style)
@@ -2202,7 +2221,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     pos.x > (Constants.RegionSize + 10) || // return FALSE if more than 10 meters into a east-adjacent region.
                     pos.y < -10.0 || // return FALSE if more than 10 meters into a south-adjacent region.
                     pos.y > (Constants.RegionSize + 10) || // return FALSE if more than 10 meters into a north-adjacent region.
-                    pos.z > 4096 // return FALSE if altitude than 4096m
+                    pos.z > Constants.RegionHeight // return FALSE if altitude than 4096m
                 )
             )
             {
@@ -2213,14 +2232,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             // this could possibly be done in the above else-if block, but we're doing the check here to keep the code easier to read.
 
             Vector3 objectPos = m_host.ParentGroup.RootPart.AbsolutePosition;
-            LandData here = World.GetLandData((float)objectPos.X, (float)objectPos.Y);
-            LandData there = World.GetLandData((float)pos.x, (float)pos.y);
+            LandData here = World.GetLandData(objectPos);
+            LandData there = World.GetLandData(pos);
 
             // we're only checking prim limits if it's moving to a different parcel under the assumption that if the object got onto the parcel without exceeding the prim limits.
 
             bool sameParcel = here.GlobalID == there.GlobalID;
 
-            if (!sameParcel && !World.Permissions.CanObjectEntry(m_host.UUID, false, new Vector3((float)pos.x, (float)pos.y, (float)pos.z)))
+            if (!sameParcel && !World.Permissions.CanRezObject(
+                m_host.ParentGroup.PrimCount, m_host.ParentGroup.OwnerID, pos))
             {
                 return 0;
             }
@@ -2279,16 +2299,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             if (part.ParentGroup.RootPart == part)
             {
                 SceneObjectGroup parent = part.ParentGroup;
-                Vector3 dest = new Vector3((float)toPos.x, (float)toPos.y, (float)toPos.z);
-                if (!World.Permissions.CanObjectEntry(parent.UUID, false, dest))
+                if (!World.Permissions.CanObjectEntry(parent.UUID, false, (Vector3)toPos))
                     return;
                 Util.FireAndForget(delegate(object x) {
-                    parent.UpdateGroupPosition(dest);
+                    parent.UpdateGroupPosition((Vector3)toPos);
                 });
             }
             else
             {
-                part.OffsetPosition = new Vector3((float)toPos.x, (float)toPos.y, (float)toPos.z);
+                part.OffsetPosition = (Vector3)toPos;
                 SceneObjectGroup parent = part.ParentGroup;
                 parent.HasGroupChanged = true;
                 parent.ScheduleGroupForTerseUpdate();
@@ -2298,8 +2317,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_Vector llGetPos()
         {
             m_host.AddScriptLPS(1);
-            Vector3 pos = m_host.GetWorldPosition();
-            return new LSL_Vector(pos.X, pos.Y, pos.Z);
+            return m_host.GetWorldPosition();
         }
 
         public LSL_Vector llGetLocalPos()
@@ -2326,7 +2344,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     pos = part.AbsolutePosition;
             }
 
-            return new LSL_Vector(pos.X, pos.Y, pos.Z);
+//            m_log.DebugFormat("[LSL API]: Returning {0} in GetPartLocalPos()", pos);
+
+            return new LSL_Vector(pos);
         }
 
         public void llSetRot(LSL_Rotation rot)
@@ -2334,26 +2354,18 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
 
             // try to let this work as in SL...
-            if (m_host.LinkNum < 2)
-            {
-                // Special case: If we are root, rotate complete SOG to new
-                // rotation.
-                // We are root if the link number is 0 (single prim) or 1
-                // (root prim). ParentID may be nonzero in attachments and
-                // using it would cause attachments and HUDs to rotate
-                // to the wrong positions.
-                
-                SetRot(m_host, Rot2Quaternion(rot));
+            if (m_host.ParentID == 0)
+            {
+                // special case: If we are root, rotate complete SOG to new rotation
+                SetRot(m_host, rot);
             }
             else
             {
                 // we are a child. The rotation values will be set to the one of root modified by rot, as in SL. Don't ask.
-                SceneObjectPart rootPart;
-                if (m_host.ParentGroup != null) // better safe than sorry
+                SceneObjectPart rootPart = m_host.ParentGroup.RootPart;
+                if (rootPart != null) // better safe than sorry
                 {
-                    rootPart = m_host.ParentGroup.RootPart;
-                    if (rootPart != null)
-                        SetRot(m_host, rootPart.RotationOffset * Rot2Quaternion(rot));
+                    SetRot(m_host, rootPart.RotationOffset * (Quaternion)rot);
                 }
             }
 
@@ -2363,8 +2375,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void llSetLocalRot(LSL_Rotation rot)
         {
             m_host.AddScriptLPS(1);
-
-            SetRot(m_host, Rot2Quaternion(rot));
+            SetRot(m_host, rot);
             ScriptSleep(200);
         }
 
@@ -2476,7 +2487,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 if (local != 0)
                     force *= llGetRot();
 
-                m_host.ParentGroup.RootPart.SetForce(new Vector3((float)force.x, (float)force.y, (float)force.z));
+                m_host.ParentGroup.RootPart.SetForce(force);
             }
         }
 
@@ -2488,10 +2499,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             if (!m_host.ParentGroup.IsDeleted)
             {
-                Vector3 tmpForce = m_host.ParentGroup.RootPart.GetForce();
-                force.x = tmpForce.X;
-                force.y = tmpForce.Y;
-                force.z = tmpForce.Z;
+                force = m_host.ParentGroup.RootPart.GetForce();
             }
 
             return force;
@@ -2500,8 +2508,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_Integer llTarget(LSL_Vector position, double range)
         {
             m_host.AddScriptLPS(1);
-            return m_host.ParentGroup.registerTargetWaypoint(
-                new Vector3((float)position.x, (float)position.y, (float)position.z), (float)range);
+            return m_host.ParentGroup.registerTargetWaypoint(position,
+                (float)range);
         }
 
         public void llTargetRemove(int number)
@@ -2513,8 +2521,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_Integer llRotTarget(LSL_Rotation rot, double error)
         {
             m_host.AddScriptLPS(1);
-            return m_host.ParentGroup.registerRotTargetWaypoint(
-                new Quaternion((float)rot.x, (float)rot.y, (float)rot.z, (float)rot.s), (float)error);
+            return m_host.ParentGroup.registerRotTargetWaypoint(rot, (float)error);
         }
 
         public void llRotTargetRemove(int number)
@@ -2526,7 +2533,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void llMoveToTarget(LSL_Vector target, double tau)
         {
             m_host.AddScriptLPS(1);
-            m_host.MoveToTarget(new Vector3((float)target.x, (float)target.y, (float)target.z), (float)tau);
+            m_host.MoveToTarget(target, (float)tau);
         }
 
         public void llStopMoveToTarget()
@@ -2539,7 +2546,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
             //No energy force yet
-            Vector3 v = new Vector3((float)force.x, (float)force.y, (float)force.z);
+            Vector3 v = force;
             if (v.Length() > 20000.0f)
             {
                 v.Normalize();
@@ -2552,13 +2559,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void llApplyRotationalImpulse(LSL_Vector force, int local)
         {
             m_host.AddScriptLPS(1);
-            m_host.ParentGroup.RootPart.ApplyAngularImpulse(new Vector3((float)force.x, (float)force.y, (float)force.z), local != 0);
+            m_host.ParentGroup.RootPart.ApplyAngularImpulse(force, local != 0);
         }
 
         public void llSetTorque(LSL_Vector torque, int local)
         {
             m_host.AddScriptLPS(1);
-            m_host.ParentGroup.RootPart.SetAngularImpulse(new Vector3((float)torque.x, (float)torque.y, (float)torque.z), local != 0);
+            m_host.ParentGroup.RootPart.SetAngularImpulse(torque, local != 0);
         }
 
         public LSL_Vector llGetTorque()
@@ -2668,63 +2675,32 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
 
             // send the sound, once, to all clients in range
-            m_host.SendSound(KeyOrName(sound).ToString(), volume, false, 0, 0, false, false);
+            if (m_SoundModule != null)
+            {
+                m_SoundModule.SendSound(m_host.UUID,
+                        KeyOrName(sound, AssetType.Sound), volume, false, 0,
+                        0, false, false);
+            }
         }
 
-        // Xantor 20080528 we should do this differently.
-        // 1) apply the sound to the object
-        // 2) schedule full update
-        // just sending the sound out once doesn't work so well when other avatars come in view later on
-        // or when the prim gets moved, changed, sat on, whatever
-        // see large number of mantises (mantes?)
-        // 20080530 Updated to remove code duplication
-        // 20080530 Stop sound if there is one, otherwise volume only changes don't work
         public void llLoopSound(string sound, double volume)
         {
             m_host.AddScriptLPS(1);
-
-            if (m_host.Sound != UUID.Zero)
-                llStopSound();
-
-            m_host.Sound = KeyOrName(sound);
-            m_host.SoundGain = volume;
-            m_host.SoundFlags = 1;      // looping
-            m_host.SoundRadius = 20;    // Magic number, 20 seems reasonable. Make configurable?
-
-            m_host.ScheduleFullUpdate();
-            m_host.SendFullUpdateToAllClients();
+            if (m_SoundModule != null)
+            {
+                m_SoundModule.LoopSound(m_host.UUID, KeyOrName(sound),
+                        volume, 20, false);
+            }
         }
 
         public void llLoopSoundMaster(string sound, double volume)
         {
             m_host.AddScriptLPS(1);
-            m_host.ParentGroup.LoopSoundMasterPrim = m_host;
-            lock (m_host.ParentGroup.LoopSoundSlavePrims)
+            if (m_SoundModule != null)
             {
-                foreach (SceneObjectPart prim in m_host.ParentGroup.LoopSoundSlavePrims)
-                {
-                    if (prim.Sound != UUID.Zero)
-                        llStopSound();
-
-                    prim.Sound = KeyOrName(sound);
-                    prim.SoundGain = volume;
-                    prim.SoundFlags = 1;      // looping
-                    prim.SoundRadius = 20;    // Magic number, 20 seems reasonable. Make configurable?
-
-                    prim.ScheduleFullUpdate();
-                    prim.SendFullUpdateToAllClients();
-                }
+                m_SoundModule.LoopSound(m_host.UUID, KeyOrName(sound),
+                        volume, 20, true);
             }
-            if (m_host.Sound != UUID.Zero)
-                llStopSound();
-
-            m_host.Sound = KeyOrName(sound);
-            m_host.SoundGain = volume;
-            m_host.SoundFlags = 1;      // looping
-            m_host.SoundRadius = 20;    // Magic number, 20 seems reasonable. Make configurable?
-
-            m_host.ScheduleFullUpdate();
-            m_host.SendFullUpdateToAllClients();
         }
 
         public void llLoopSoundSlave(string sound, double volume)
@@ -2741,61 +2717,39 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
 
             // send the sound, once, to all clients in range
-            m_host.SendSound(KeyOrName(sound).ToString(), volume, false, 0, 0, true, false);
+            if (m_SoundModule != null)
+            {
+                m_SoundModule.SendSound(m_host.UUID,
+                        KeyOrName(sound, AssetType.Sound), volume, false, 0,
+                        0, true, false);
+            }
         }
 
         public void llTriggerSound(string sound, double volume)
         {
             m_host.AddScriptLPS(1);
-            // send the sound, once, to all clients in range
-            m_host.SendSound(KeyOrName(sound).ToString(), volume, true, 0, 0, false, false);
+            // send the sound, once, to all clients in rangeTrigger or play an attached sound in this part's inventory.
+            if (m_SoundModule != null)
+            {
+                m_SoundModule.SendSound(m_host.UUID,
+                        KeyOrName(sound, AssetType.Sound), volume, true, 0, 0,
+                        false, false);
+            }
         }
 
-        // Xantor 20080528: Clear prim data of sound instead
         public void llStopSound()
         {
             m_host.AddScriptLPS(1);
-            if (m_host.ParentGroup.LoopSoundSlavePrims.Contains(m_host))
-            {
-                if (m_host.ParentGroup.LoopSoundMasterPrim == m_host)
-                {
-                    foreach (SceneObjectPart part in m_host.ParentGroup.LoopSoundSlavePrims)
-                    {
-                        part.Sound = UUID.Zero;
-                        part.SoundGain = 0;
-                        part.SoundFlags = 0;
-                        part.SoundRadius = 0;
-                        part.ScheduleFullUpdate();
-                        part.SendFullUpdateToAllClients();
-                    }
-                    m_host.ParentGroup.LoopSoundMasterPrim = null;
-                    m_host.ParentGroup.LoopSoundSlavePrims.Clear();
-                }
-                else
-                {
-                    m_host.Sound = UUID.Zero;
-                    m_host.SoundGain = 0;
-                    m_host.SoundFlags = 0;
-                    m_host.SoundRadius = 0;
-                    m_host.ScheduleFullUpdate();
-                    m_host.SendFullUpdateToAllClients();
-                }
-            }
-            else
-            {
-                m_host.Sound = UUID.Zero;
-                m_host.SoundGain = 0;
-                m_host.SoundFlags = 0;
-                m_host.SoundRadius = 0;
-                m_host.ScheduleFullUpdate();
-                m_host.SendFullUpdateToAllClients();
-            }
+
+            if (m_SoundModule != null)
+                m_SoundModule.StopSound(m_host.UUID);
         }
 
         public void llPreloadSound(string sound)
         {
             m_host.AddScriptLPS(1);
-            m_host.PreloadSound(sound);
+            if (m_SoundModule != null)
+                m_SoundModule.PreloadSound(m_host.UUID, KeyOrName(sound), 0);
             ScriptSleep(1000);
         }
 
@@ -3123,13 +3077,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     return;
                 }
 
-                Vector3 llpos = new Vector3((float)pos.x, (float)pos.y, (float)pos.z);
-                Vector3 llvel = new Vector3((float)vel.x, (float)vel.y, (float)vel.z);
-
                 // need the magnitude later
                 // float velmag = (float)Util.GetMagnitude(llvel);
 
-                SceneObjectGroup new_group = World.RezObject(m_host, item, llpos, Rot2Quaternion(rot), llvel, param);
+                SceneObjectGroup new_group = World.RezObject(m_host, item, pos, rot, vel, param);
 
                 // If either of these are null, then there was an unknown error.
                 if (new_group == null)
@@ -3156,11 +3107,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                 PhysicsActor pa = new_group.RootPart.PhysActor;
 
-                if (pa != null && pa.IsPhysical && llvel != Vector3.Zero)
+                if (pa != null && pa.IsPhysical && (Vector3)vel != Vector3.Zero)
                 {
                     float groupmass = new_group.GetMass();
-                    llvel *= -groupmass;
-                    llApplyImpulse(new LSL_Vector(llvel.X, llvel.Y,llvel.Z), 0);
+                    vel *= -groupmass;
+                    llApplyImpulse(vel, 0);
                 }
                 // Variable script delay? (see (http://wiki.secondlife.com/wiki/LSL_Delay)
                 return;
@@ -3211,7 +3162,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     return;
                 }
 
-                m_host.StartLookAt(Rot2Quaternion(r3 * r2 * r1), (float)strength, (float)damping);
+                m_host.StartLookAt((Quaternion)(r3 * r2 * r1), (float)strength, (float)damping);
             }
         }
 
@@ -3637,7 +3588,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
             else
             {
-                m_host.RotLookAt(Rot2Quaternion(target), (float)strength, (float)damping);
+                m_host.RotLookAt(target, (float)strength, (float)damping);
             }
         }
 
@@ -3718,7 +3669,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         protected void TargetOmega(SceneObjectPart part, LSL_Vector axis, double spinrate, double gain)
         {
-            part.UpdateAngularVelocity(new Vector3((float)(axis.x * spinrate), (float)(axis.y * spinrate), (float)(axis.z * spinrate)));
+            part.UpdateAngularVelocity(axis * spinrate);
          }
 
         public LSL_Integer llGetStartParameter()
@@ -3932,7 +3883,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 try
                 {
                     foreach (SceneObjectPart part in parts)
-                        part.SetFaceColor(new Vector3((float)color.x, (float)color.y, (float)color.z), face);
+                        part.SetFaceColorAlpha(face, color, null);
                 }
                 finally
                 {
@@ -4158,6 +4109,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         }
 
         /// <summary>
+        /// Returns the name of the child prim or seated avatar matching the
+        /// specified link number.
+        /// </summary>
+        /// <param name="linknum">
+        /// The number of a link in the linkset or a link-related constant.
+        /// </param>
+        /// <returns>
+        /// The name determined to match the specified link number.
+        /// </returns>
+        /// <remarks>
         /// The rules governing the returned name are not simple. The only
         /// time a blank name is returned is if the target prim has a blank
         /// name. If no prim with the given link number can be found then
@@ -4185,10 +4146,14 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// Mentions NULL_KEY being returned
         /// http://wiki.secondlife.com/wiki/LlGetLinkName
         /// Mentions using the LINK_* constants, some of which are negative
-        /// </summary>
+        /// </remarks>
         public LSL_String llGetLinkName(int linknum)
         {
             m_host.AddScriptLPS(1);
+            // simplest case, this prims link number
+            if (linknum == m_host.LinkNum || linknum == ScriptBaseClass.LINK_THIS)
+                return m_host.Name;
+
             // parse for sitting avatare-names
             List<String> nametable = new List<String>();
             World.ForEachRootScenePresence(delegate(ScenePresence presence)
@@ -4212,10 +4177,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     return nametable[totalprims - linknum];
             }
 
-            // simplest case, this prims link number
-            if (m_host.LinkNum == linknum)
-                return m_host.Name;
-
             // Single prim
             if (m_host.LinkNum == 0)
             {
@@ -4364,7 +4325,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         World.RegionInfo.RegionName+" "+
                         m_host.AbsolutePosition.ToString(),
                         agentItem.ID, true, m_host.AbsolutePosition,
-                        bucket);
+                        bucket, true);
 
                 ScenePresence sp;
 
@@ -4402,9 +4363,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void llSetText(string text, LSL_Vector color, double alpha)
         {
             m_host.AddScriptLPS(1);
-            Vector3 av3 = new Vector3(Util.Clip((float)color.x, 0.0f, 1.0f),
-                                      Util.Clip((float)color.y, 0.0f, 1.0f),
-                                      Util.Clip((float)color.z, 0.0f, 1.0f));
+            Vector3 av3 = Util.Clip(color, 0.0f, 1.0f);
             if (text.Length > 254)
                 text = text.Remove(254);
 
@@ -4631,14 +4590,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             ScriptSleep(5000);
         }
 
-        public void llTeleportAgent(string agent, string destination, LSL_Vector pos, LSL_Vector lookAt)
+        public void llTeleportAgent(string agent, string destination, LSL_Vector targetPos, LSL_Vector targetLookAt)
         {
             m_host.AddScriptLPS(1);
             UUID agentId = new UUID();
 
-            Vector3 targetPos = new Vector3((float)pos.x, (float)pos.y, (float)pos.z);
-            Vector3 targetLookAt = new Vector3((float)lookAt.x, (float)lookAt.y, (float)lookAt.z);
-
             if (UUID.TryParse(agent, out agentId))
             {
                 ScenePresence presence = World.GetScenePresence(agentId);
@@ -4667,15 +4623,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
         }
 
-        public void llTeleportAgentGlobalCoords(string agent, LSL_Vector global_coords, LSL_Vector pos, LSL_Vector lookAt)
+        public void llTeleportAgentGlobalCoords(string agent, LSL_Vector global_coords, LSL_Vector targetPos, LSL_Vector targetLookAt)
         {
             m_host.AddScriptLPS(1);
             UUID agentId = new UUID();
 
             ulong regionHandle = Utils.UIntsToLong((uint)global_coords.x, (uint)global_coords.y);
 
-            Vector3 targetPos = new Vector3((float)pos.x, (float)pos.y, (float)pos.z);
-            Vector3 targetLookAt = new Vector3((float)lookAt.x, (float)lookAt.y, (float)lookAt.z);
             if (UUID.TryParse(agent, out agentId))
             {
                 ScenePresence presence = World.GetScenePresence(agentId);
@@ -4777,16 +4731,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 return;
             }
             // TODO: Parameter check logic required.
-            UUID soundId = UUID.Zero;
-            if (!UUID.TryParse(impact_sound, out soundId))
-            {
-                TaskInventoryItem item = m_host.Inventory.GetInventoryItem(impact_sound);
-
-                if (item != null && item.Type == (int)AssetType.Sound)
-                    soundId = item.AssetID;
-            }
-
-            m_host.CollisionSound = soundId;
+            m_host.CollisionSound = KeyOrName(impact_sound, AssetType.Sound);
             m_host.CollisionSoundVolume = (float)impact_volume;
             m_host.CollisionSoundType = 1;
         }
@@ -4972,7 +4917,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     distance_attenuation = 1f / normalized_units;
                 }
 
-                Vector3 applied_linear_impulse = new Vector3((float)impulse.x, (float)impulse.y, (float)impulse.z);
+                Vector3 applied_linear_impulse = impulse;
                 {
                     float impulse_length = applied_linear_impulse.Length();
 
@@ -5620,25 +5565,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// separated list. There is a space after
         /// each comma.
         /// </summary>
-
         public LSL_String llList2CSV(LSL_List src)
         {
-
-            string ret = String.Empty;
-            int    x   = 0;
-
             m_host.AddScriptLPS(1);
 
-            if (src.Data.Length > 0)
-            {
-                ret = src.Data[x++].ToString();
-                for (; x < src.Data.Length; x++)
-                {
-                    ret += ", "+src.Data[x].ToString();
-                }
-            }
-
-            return ret;
+            return string.Join(", ", 
+                    (new List<object>(src.Data)).ConvertAll<string>(o => 
+                    {
+                        return o.ToString();
+                    }).ToArray());
         }
 
         /// <summary>
@@ -5937,27 +5872,36 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// Returns the index of the first occurrence of test
         /// in src.
         /// </summary>
-
+        /// <param name="src">Source list</param>
+        /// <param name="test">List to search for</param>
+        /// <returns>
+        /// The index number of the point in src where test was found if it was found.
+        /// Otherwise returns -1
+        /// </returns>
         public LSL_Integer llListFindList(LSL_List src, LSL_List test)
         {
-
             int index  = -1;
             int length = src.Length - test.Length + 1;
 
             m_host.AddScriptLPS(1);
 
             // If either list is empty, do not match
-
             if (src.Length != 0 && test.Length != 0)
             {
                 for (int i = 0; i < length; i++)
                 {
-                    if (src.Data[i].Equals(test.Data[0]))
+                    // Why this piece of insanity?  This is because most script constants are C# value types (e.g. int)
+                    // rather than wrapped LSL types.  Such a script constant does not have int.Equal(LSL_Integer) code
+                    // and so the comparison fails even if the LSL_Integer conceptually has the same value.
+                    // Therefore, here we test Equals on both the source and destination objects.
+                    // However, a future better approach may be use LSL struct script constants (e.g. LSL_Integer(1)).
+                    if (src.Data[i].Equals(test.Data[0]) || test.Data[0].Equals(src.Data[i]))
                     {
                         int j;
                         for (j = 1; j < test.Length; j++)
-                            if (!src.Data[i+j].Equals(test.Data[j]))
+                            if (!(src.Data[i+j].Equals(test.Data[j]) || test.Data[j].Equals(src.Data[i+j])))
                                 break;
+
                         if (j == test.Length)
                         {
                             index = i;
@@ -5968,19 +5912,18 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
 
             return index;
-
         }
 
         public LSL_String llGetObjectName()
         {
             m_host.AddScriptLPS(1);
-            return m_host.Name!=null?m_host.Name:String.Empty;
+            return m_host.Name !=null ? m_host.Name : String.Empty;
         }
 
         public void llSetObjectName(string name)
         {
             m_host.AddScriptLPS(1);
-            m_host.Name = name!=null?name:String.Empty;
+            m_host.Name = name != null ? name : String.Empty;
         }
 
         public LSL_String llGetDate()
@@ -6154,7 +6097,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                  flags |= ScriptBaseClass.AGENT_SITTING;
              }
 
-             if (agent.Animator.Animations.DefaultAnimation.AnimID
+             if (agent.Animator.Animations.ImplicitDefaultAnimation.AnimID
                 == DefaultAvatarAnimations.AnimsUUID["SIT_GROUND_CONSTRAINED"])
              {
                  flags |= ScriptBaseClass.AGENT_SITTING;
@@ -6311,19 +6254,17 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
 
             List<SceneObjectPart> parts = GetLinkParts(linknumber);
-            if (parts.Count > 0)
+
+            try
             {
-                try
-                {
-                    foreach (var part in parts)
-                    {
-                        SetTextureAnim(part, mode, face, sizex, sizey, start, length, rate);
-                    }
-                }
-                finally
+                foreach (SceneObjectPart part in parts)
                 {
+                    SetTextureAnim(part, mode, face, sizex, sizey, start, length, rate);
                 }
             }
+            finally
+            {
+            }
         }
 
         private void SetTextureAnim(SceneObjectPart part, int mode, int face, int sizex, int sizey, double start, double length, double rate)
@@ -6352,10 +6293,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                                           LSL_Vector bottom_south_west)
         {
             m_host.AddScriptLPS(1);
-            float radius1 = (float)llVecDist(llGetPos(), top_north_east);
-            float radius2 = (float)llVecDist(llGetPos(), bottom_south_west);
-            float radius = Math.Abs(radius1 - radius2);
-            m_host.SendSound(KeyOrName(sound).ToString(), volume, true, 0, radius, false, false);
+            if (m_SoundModule != null)
+            {
+                m_SoundModule.TriggerSoundLimited(m_host.UUID,
+                        KeyOrName(sound, AssetType.Sound), volume,
+                        bottom_south_west, top_north_east);
+            }
         }
 
         public void llEjectFromLand(string pest)
@@ -6541,9 +6484,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             //Plug the x,y coordinates of the slope normal into the equation of the plane to get
             //the height of that point on the plane.  The resulting vector gives the slope.
-            Vector3 vsl = new Vector3();
-            vsl.X = (float)vsn.x;
-            vsl.Y = (float)vsn.y;
+            Vector3 vsl = vsn;
             vsl.Z = (float)(((vsn.x * vsn.x) + (vsn.y * vsn.y)) / (-1 * vsn.z));
             vsl.Normalize();
             //Normalization might be overkill here
@@ -6554,9 +6495,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_Vector llGroundNormal(LSL_Vector offset)
         {
             m_host.AddScriptLPS(1);
-            Vector3 pos = m_host.GetWorldPosition() + new Vector3((float)offset.x,
-                                                                (float)offset.y,
-                                                                (float)offset.z);
+            Vector3 pos = m_host.GetWorldPosition() + (Vector3)offset;
             // Clamp to valid position
             if (pos.X < 0)
                 pos.X = 0;
@@ -6721,7 +6660,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             List<SceneObjectPart> parts = GetLinkParts(linknumber);
 
-            foreach (var part in parts)
+            foreach (SceneObjectPart part in parts)
             {
                 SetParticleSystem(part, rules);
             }
@@ -6965,16 +6904,17 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             if (m_TransferModule != null)
             {
                 byte[] bucket = new byte[] { (byte)AssetType.Folder };
-    
+
+                Vector3 pos = m_host.AbsolutePosition;
+
                 GridInstantMessage msg = new GridInstantMessage(World,
-                        m_host.UUID, m_host.Name + ", an object owned by " +
-                        resolveName(m_host.OwnerID) + ",", destID,
+                        m_host.OwnerID, m_host.Name, destID,
                         (byte)InstantMessageDialog.TaskInventoryOffered,
-                        false, category + "\n" + m_host.Name + " is located at " +
-                        World.RegionInfo.RegionName + " " +
-                        m_host.AbsolutePosition.ToString(),
-                        folderID, true, m_host.AbsolutePosition,
-                        bucket);
+                        false, string.Format("'{0}'", category),
+// We won't go so far as to add a SLURL, but this is the format used by LL as of 2012-10-06                                       
+// false, string.Format("'{0}'  ( http://slurl.com/secondlife/{1}/{2}/{3}/{4} )", category, World.Name, (int)pos.X, (int)pos.Y, (int)pos.Z),
+                        folderID, false, pos,
+                        bucket, false);
 
                 m_TransferModule.SendInstantMessage(msg, delegate(bool success) {});
             }
@@ -7010,8 +6950,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             if (!m_host.ParentGroup.IsDeleted)
             {
-                m_host.ParentGroup.RootPart.SetVehicleVectorParam(param,
-                    new Vector3((float)vec.x, (float)vec.y, (float)vec.z));
+                m_host.ParentGroup.RootPart.SetVehicleVectorParam(param, vec);
             }
         }
 
@@ -7023,7 +6962,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             if (!m_host.ParentGroup.IsDeleted)
             {
-                m_host.ParentGroup.RootPart.SetVehicleRotationParam(param, Rot2Quaternion(rot));
+                m_host.ParentGroup.RootPart.SetVehicleRotationParam(param, rot);
             }
         }
 
@@ -7053,8 +6992,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             if (rot.s == 0 && rot.x == 0 && rot.y == 0 && rot.z == 0)
                 rot.s = 1; // ZERO_ROTATION = 0,0,0,1
 
-            part.SitTargetPosition = new Vector3((float)offset.x, (float)offset.y, (float)offset.z);
-            part.SitTargetOrientation = Rot2Quaternion(rot);
+            part.SitTargetPosition = offset;
+            part.SitTargetOrientation = rot;
             part.ParentGroup.HasGroupChanged = true;
         }
 
@@ -7157,13 +7096,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void llSetCameraEyeOffset(LSL_Vector offset)
         {
             m_host.AddScriptLPS(1);
-            m_host.SetCameraEyeOffset(new Vector3((float)offset.x, (float)offset.y, (float)offset.z));
+            m_host.SetCameraEyeOffset(offset);
         }
 
         public void llSetCameraAtOffset(LSL_Vector offset)
         {
             m_host.AddScriptLPS(1);
-            m_host.SetCameraAtOffset(new Vector3((float)offset.x, (float)offset.y, (float)offset.z));
+            m_host.SetCameraAtOffset(offset);
         }
 
         public LSL_String llDumpList2String(LSL_List src, string seperator)
@@ -7185,7 +7124,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_Integer llScriptDanger(LSL_Vector pos)
         {
             m_host.AddScriptLPS(1);
-            bool result = World.ScriptDanger(m_host.LocalId, new Vector3((float)pos.x, (float)pos.y, (float)pos.z));
+            bool result = World.ScriptDanger(m_host.LocalId, pos);
             if (result)
             {
                 return 1;
@@ -7767,7 +7706,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
-            setLinkPrimParams(ScriptBaseClass.LINK_THIS, rules);
+            setLinkPrimParams(ScriptBaseClass.LINK_THIS, rules, "llSetPrimitiveParams");
 
             ScriptSleep(200);
         }
@@ -7776,10 +7715,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
-            setLinkPrimParams(linknumber, rules);
+            setLinkPrimParams(linknumber, rules, "llSetLinkPrimitiveParamsFast");
+
+            ScriptSleep(200);
         }
 
-        private void setLinkPrimParams(int linknumber, LSL_List rules)
+        private void setLinkPrimParams(int linknumber, LSL_List rules, string originFunc)
         {
             List<object> parts = new List<object>();
             List<SceneObjectPart> prims = GetLinkParts(linknumber);
@@ -7790,15 +7731,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 parts.Add(p);
 
             LSL_List remaining = null;
+            uint rulesParsed = 0;
 
             if (parts.Count > 0)
             {
                 foreach (object part in parts)
                 {
                     if (part is SceneObjectPart)
-                        remaining = SetPrimParams((SceneObjectPart)part, rules);
+                        remaining = SetPrimParams((SceneObjectPart)part, rules, originFunc, ref rulesParsed);
                     else
-                        remaining = SetPrimParams((ScenePresence)part, rules);
+                        remaining = SetPrimParams((ScenePresence)part, rules, originFunc, ref rulesParsed);
                 }
 
                 while ((object)remaining != null && remaining.Length > 2)
@@ -7817,9 +7759,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     foreach (object part in parts)
                     {
                         if (part is SceneObjectPart)
-                            remaining = SetPrimParams((SceneObjectPart)part, rules);
+                            remaining = SetPrimParams((SceneObjectPart)part, rules, originFunc, ref rulesParsed);
                         else
-                            remaining = SetPrimParams((ScenePresence)part, rules);
+                            remaining = SetPrimParams((ScenePresence)part, rules, originFunc, ref rulesParsed);
                     }
                 }
             }
@@ -7857,6 +7799,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public void llSetLinkPrimitiveParams(int linknumber, LSL_List rules)
         {
+            setLinkPrimParams(linknumber, rules, "llSetLinkPrimitiveParams");
             llSetLinkPrimitiveParamsFast(linknumber, rules);
             ScriptSleep(200);
         }
@@ -7884,195 +7827,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return new Vector3((float)x, (float)y, (float)z);
         }
 
-        protected LSL_List SetPrimParams(ScenePresence av, LSL_List rules)
-        {
-            //This is a special version of SetPrimParams to deal with avatars which are sat on the linkset.
-
-            int idx = 0;
-
-            bool positionChanged = false;
-            Vector3 finalPos = Vector3.Zero;
-
-            try
-            {
-                while (idx < rules.Length)
-                {
-                    int code = rules.GetLSLIntegerItem(idx++);
-
-                    int remain = rules.Length - idx;
-
-                    switch (code)
-                    {
-                        case (int)ScriptBaseClass.PRIM_POSITION:
-                        case (int)ScriptBaseClass.PRIM_POS_LOCAL:
-                            {
-                                if (remain < 1)
-                                    return null;
-
-                                LSL_Vector v;
-                                v = rules.GetVector3Item(idx++);
-
-                                SceneObjectPart part = World.GetSceneObjectPart(av.ParentID);
-                                if (part == null)
-                                    break;
-
-                                LSL_Rotation localRot = ScriptBaseClass.ZERO_ROTATION;
-                                LSL_Vector localPos = ScriptBaseClass.ZERO_VECTOR;
-                                if (part.LinkNum > 1)
-                                {
-                                    localRot = GetPartLocalRot(part);
-                                    localPos = GetPartLocalPos(part);
-                                }
-
-                                v -= localPos;
-                                v /= localRot;
-
-                                LSL_Vector sitOffset = (llRot2Up(new LSL_Rotation(av.Rotation.X, av.Rotation.Y, av.Rotation.Z, av.Rotation.W)) * av.Appearance.AvatarHeight * 0.02638f);
-
-                                v = v + 2 * sitOffset;
-
-                                av.OffsetPosition = new Vector3((float)v.x, (float)v.y, (float)v.z);
-                                av.SendAvatarDataToAllAgents();
-
-                            }
-                            break;
-
-                        case (int)ScriptBaseClass.PRIM_ROT_LOCAL:
-                        case (int)ScriptBaseClass.PRIM_ROTATION:
-                            {
-                                if (remain < 1)
-                                    return null;
-
-                                LSL_Rotation r;
-                                r = rules.GetQuaternionItem(idx++);
-
-                                SceneObjectPart part = World.GetSceneObjectPart(av.ParentID);
-                                if (part == null)
-                                    break;
-
-                                LSL_Rotation localRot = ScriptBaseClass.ZERO_ROTATION;
-                                LSL_Vector localPos = ScriptBaseClass.ZERO_VECTOR;
-
-                                if (part.LinkNum > 1)
-                                    localRot = GetPartLocalRot(part);
-
-                                r = r * llGetRootRotation() / localRot;
-                                av.Rotation = new Quaternion((float)r.x, (float)r.y, (float)r.z, (float)r.s);
-                                av.SendAvatarDataToAllAgents();
-                            }
-                            break;
-
-                        // parse rest doing nothing but number of parameters error check
-                        case (int)ScriptBaseClass.PRIM_SIZE:
-                        case (int)ScriptBaseClass.PRIM_MATERIAL:
-                        case (int)ScriptBaseClass.PRIM_PHANTOM:
-                        case (int)ScriptBaseClass.PRIM_PHYSICS:
-                        case (int)ScriptBaseClass.PRIM_PHYSICS_SHAPE_TYPE:
-                        case (int)ScriptBaseClass.PRIM_TEMP_ON_REZ:
-                        case (int)ScriptBaseClass.PRIM_NAME:
-                        case (int)ScriptBaseClass.PRIM_DESC:
-                            if (remain < 1)
-                                return null;
-                            idx++;
-                            break;
-
-                        case (int)ScriptBaseClass.PRIM_GLOW:
-                        case (int)ScriptBaseClass.PRIM_FULLBRIGHT:
-                        case (int)ScriptBaseClass.PRIM_TEXGEN:
-                            if (remain < 2)
-                                return null;
-                            idx += 2;
-                            break;
-
-                        case (int)ScriptBaseClass.PRIM_TYPE:
-                            if (remain < 3)
-                                return null;
-                            code = (int)rules.GetLSLIntegerItem(idx++);
-                            remain = rules.Length - idx;
-                            switch (code)
-                            {
-                                case (int)ScriptBaseClass.PRIM_TYPE_BOX:
-                                case (int)ScriptBaseClass.PRIM_TYPE_CYLINDER:
-                                case (int)ScriptBaseClass.PRIM_TYPE_PRISM:
-                                    if (remain < 6)
-                                        return null;
-                                    idx += 6;
-                                    break;
-
-                                case (int)ScriptBaseClass.PRIM_TYPE_SPHERE:
-                                    if (remain < 5)
-                                        return null;
-                                    idx += 5;
-                                    break;
-
-                                case (int)ScriptBaseClass.PRIM_TYPE_TORUS:
-                                case (int)ScriptBaseClass.PRIM_TYPE_TUBE:
-                                case (int)ScriptBaseClass.PRIM_TYPE_RING:
-                                    if (remain < 11)
-                                        return null;
-                                    idx += 11;
-                                    break;
-
-                                case (int)ScriptBaseClass.PRIM_TYPE_SCULPT:
-                                    if (remain < 2)
-                                        return null;
-                                    idx += 2;
-                                    break;
-                            }
-                            break;
-
-                        case (int)ScriptBaseClass.PRIM_COLOR:
-                        case (int)ScriptBaseClass.PRIM_TEXT:
-                        case (int)ScriptBaseClass.PRIM_BUMP_SHINY:
-                        case (int)ScriptBaseClass.PRIM_OMEGA:
-                            if (remain < 3)
-                                return null;
-                            idx += 3;
-                            break;
-
-                        case (int)ScriptBaseClass.PRIM_TEXTURE:
-                        case (int)ScriptBaseClass.PRIM_POINT_LIGHT:
-                        case (int)ScriptBaseClass.PRIM_PHYSICS_MATERIAL:
-                            if (remain < 5)
-                                return null;
-                            idx += 5;
-                            break;
-
-                        case (int)ScriptBaseClass.PRIM_FLEXIBLE:
-                            if (remain < 7)
-                                return null;
-
-                            idx += 7;
-                            break;
-
-                        case (int)ScriptBaseClass.PRIM_LINK_TARGET:
-                            if (remain < 3) // setting to 3 on the basis that parsing any usage of PRIM_LINK_TARGET that has nothing following it is pointless.
-                                return null;
-
-                            return rules.GetSublist(idx, -1);
-                    }
-                }
-            }
-
-            finally
-            {
-                if (positionChanged)
-                {
-                    av.OffsetPosition = finalPos;
-//                    av.SendAvatarDataToAllAgents();
-                    av.SendTerseUpdateToAllClients();
-                    positionChanged = false;
-                }
-            }
-            return null;
-        }
-
-        protected LSL_List SetPrimParams(SceneObjectPart part, LSL_List rules)
+        protected LSL_List SetPrimParams(SceneObjectPart part, LSL_List rules, string originFunc, ref uint rulesParsed)
         {
             if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
                 return null;
 
             int idx = 0;
+            int idxStart = 0;
 
             SceneObjectGroup parentgrp = part.ParentGroup;
 
@@ -8083,9 +7844,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             {
                 while (idx < rules.Length)
                 {
+                    ++rulesParsed;
                     int code = rules.GetLSLIntegerItem(idx++);
 
                     int remain = rules.Length - idx;
+                    idxStart = idx;
 
                     int face;
                     LSL_Vector v;
@@ -8115,18 +7878,17 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                                 return null;
 
                             LSL_Rotation q = rules.GetQuaternionItem(idx++);
-                            SceneObjectPart rootPart = parentgrp.RootPart;
                             // try to let this work as in SL...
-                            if (rootPart == part)
+                            if (part.ParentID == 0)
                             {
                                 // special case: If we are root, rotate complete SOG to new rotation
-                                SetRot(part, Rot2Quaternion(q));
+                                SetRot(part, q);
                             }
                             else
                             {
                                 // we are a child. The rotation values will be set to the one of root modified by rot, as in SL. Don't ask.
-                                // sounds like sl bug that we need to replicate
-                                SetRot(part, rootPart.RotationOffset * Rot2Quaternion(q));
+                                SceneObjectPart rootPart = part.ParentGroup.RootPart;
+                                SetRot(part, rootPart.RotationOffset * (Quaternion)q);
                             }
 
                             break;
@@ -8300,8 +8062,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             LSL_Vector color=rules.GetVector3Item(idx++);
                             double alpha=(double)rules.GetLSLFloatItem(idx++);
 
-                            part.SetFaceColor(new Vector3((float)color.x, (float)color.y, (float)color.z), face);
-                            SetAlpha(part, alpha, face);
+                            part.SetFaceColorAlpha(face, color, alpha);
 
                             break;
 
@@ -8449,9 +8210,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             string primText = rules.GetLSLStringItem(idx++);
                             LSL_Vector primTextColor = rules.GetVector3Item(idx++);
                             LSL_Float primTextAlpha = rules.GetLSLFloatItem(idx++);
-                            Vector3 av3 = new Vector3(Util.Clip((float)primTextColor.x, 0.0f, 1.0f),
-                                          Util.Clip((float)primTextColor.y, 0.0f, 1.0f),
-                                          Util.Clip((float)primTextColor.z, 0.0f, 1.0f));
+                            Vector3 av3 = Util.Clip(primTextColor, 0.0f, 1.0f);
                             part.SetText(primText, av3, Util.Clip((float)primTextAlpha, 0.0f, 1.0f));
 
                             break;
@@ -8470,8 +8229,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         case (int)ScriptBaseClass.PRIM_ROT_LOCAL:
                             if (remain < 1)
                                 return null;
-                            LSL_Rotation lr = rules.GetQuaternionItem(idx++);
-                            SetRot(part, Rot2Quaternion(lr));
+                            SetRot(part, rules.GetQuaternionItem(idx++));
                             break;
                         case (int)ScriptBaseClass.PRIM_OMEGA:
                             if (remain < 3)
@@ -8481,7 +8239,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             LSL_Float gain = rules.GetLSLFloatItem(idx++);
                             TargetOmega(part, axis, (double)spinrate, (double)gain);
                             break;
-
+                        case (int)ScriptBaseClass.PRIM_SLICE:
+                            if (remain < 1)
+                                return null;
+                            LSL_Vector slice = rules.GetVector3Item(idx++);
+                            part.UpdateSlice((float)slice.x, (float)slice.y);
+                            break;
                         case (int)ScriptBaseClass.PRIM_LINK_TARGET:
                             if (remain < 3) // setting to 3 on the basis that parsing any usage of PRIM_LINK_TARGET that has nothing following it is pointless.
                                 return null;
@@ -8490,6 +8253,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     }
                 }
             }
+            catch (InvalidCastException e)
+            {
+                ShoutError(string.Format(
+                        "{0} error running rule #{1}: arg #{2} ",
+                        originFunc, rulesParsed, idx - idxStart) + e.Message);
+            }
             finally
             {
                 if (positionChanged)
@@ -8498,12 +8267,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     {
                         SceneObjectGroup parent = part.ParentGroup;
                         Util.FireAndForget(delegate(object x) {
-                            parent.UpdateGroupPosition(new Vector3((float)currentPosition.x, (float)currentPosition.y, (float)currentPosition.z));
+                            parent.UpdateGroupPosition(currentPosition);
                         });
                     }
                     else
                     {
-                        part.OffsetPosition = new Vector3((float)currentPosition.x, (float)currentPosition.y, (float)currentPosition.z);
+                        part.OffsetPosition = currentPosition;
                         SceneObjectGroup parent = part.ParentGroup;
                         parent.HasGroupChanged = true;
                         parent.ScheduleGroupForTerseUpdate();
@@ -8792,7 +8561,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 // and standing avatar since server 1.36
                 LSL_Vector lower;
                 LSL_Vector upper;
-                if (presence.Animator.Animations.DefaultAnimation.AnimID 
+                if (presence.Animator.Animations.ImplicitDefaultAnimation.AnimID 
                     == DefaultAvatarAnimations.AnimsUUID["SIT_GROUND_CONSTRAINED"])
                 {
                     // This is for ground sitting avatars
@@ -8881,7 +8650,22 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_List llGetPrimitiveParams(LSL_List rules)
         {
             m_host.AddScriptLPS(1);
-            return GetLinkPrimitiveParams(m_host, rules);
+
+            LSL_List result = new LSL_List();
+
+            LSL_List remaining = GetPrimParams(m_host, rules, ref result);
+
+            while (remaining != null && remaining.Length > 2)
+            {
+                int linknumber = remaining.GetLSLIntegerItem(0);
+                rules = remaining.GetSublist(1, -1);
+                List<SceneObjectPart> parts = GetLinkParts(linknumber);
+
+                foreach (SceneObjectPart part in parts)
+                    remaining = GetPrimParams(part, rules, ref result);
+            }
+
+            return result;
         }
 
         public LSL_List llGetLinkPrimitiveParams(int linknumber, LSL_List rules)
@@ -8891,294 +8675,39 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             // acording to SL wiki this must indicate a single link number or link_root or link_this.
             // keep other options as before
 
-            List<SceneObjectPart> parts = GetLinkParts(linknumber);
-            List<ScenePresence> avatars = GetLinkAvatars(linknumber);
-
+            List<SceneObjectPart> parts;
+            List<ScenePresence> avatars;
+            
             LSL_List res = new LSL_List();
+            LSL_List remaining = null;
 
-            if (parts.Count > 0)
+            while (rules.Length > 0)
             {
-                foreach (var part in parts)
+                parts = GetLinkParts(linknumber);
+                avatars = GetLinkAvatars(linknumber);
+
+                remaining = null;
+                foreach (SceneObjectPart part in parts)
                 {
-                    LSL_List partRes = GetLinkPrimitiveParams(part, rules);
-                    res += partRes;
+                    remaining = GetPrimParams(part, rules, ref res);
                 }
-            }
-            if (avatars.Count > 0)
-            {
                 foreach (ScenePresence avatar in avatars)
                 {
-                    LSL_List avaRes = GetLinkPrimitiveParams(avatar, rules);
-                    res += avaRes;
+                    remaining = GetPrimParams(avatar, rules, ref res);
                 }
-            }
-            return res;
-        }
-
-        public LSL_List GetLinkPrimitiveParams(ScenePresence avatar, LSL_List rules)
-        {
-            // avatars case
-            // replies as SL wiki
 
-            LSL_List res = new LSL_List();
-//            SceneObjectPart sitPart = avatar.ParentPart; // most likelly it will be needed
-            SceneObjectPart sitPart = World.GetSceneObjectPart(avatar.ParentID); // maybe better do this expensive search for it in case it's gone??
-
-            int idx = 0;
-            while (idx < rules.Length)
-            {
-                int code = (int)rules.GetLSLIntegerItem(idx++);
-                int remain = rules.Length - idx;
-
-                switch (code)
+                if (remaining != null && remaining.Length > 0)
                 {
-                    case (int)ScriptBaseClass.PRIM_MATERIAL:
-                        res.Add(new LSL_Integer((int)SOPMaterialData.SopMaterial.Flesh));
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_PHYSICS:
-                            res.Add(new LSL_Integer(0));
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_TEMP_ON_REZ:
-                            res.Add(new LSL_Integer(0));
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_PHANTOM:
-                            res.Add(new LSL_Integer(0));
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_POSITION:
-
-                        Vector3 pos = avatar.OffsetPosition;
-
-                        Vector3 sitOffset = (Zrot(avatar.Rotation)) * (avatar.Appearance.AvatarHeight * 0.02638f *2.0f);
-                        pos -= sitOffset;
-
-                        if( sitPart != null)
-                            pos = sitPart.GetWorldPosition() + pos * sitPart.GetWorldRotation();
-
-                        res.Add(new LSL_Vector(pos.X,pos.Y,pos.Z));
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_SIZE:
-                        // as in llGetAgentSize above
-                        res.Add(new LSL_Vector(0.45f, 0.6f, avatar.Appearance.AvatarHeight));
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_ROTATION:
-                        Quaternion rot = avatar.Rotation;
-                        if (sitPart != null)
-                        {
-                            rot = sitPart.GetWorldRotation() * rot; // apply sit part world rotation
-                        }
-
-                        res.Add(new LSL_Rotation (rot.X, rot.Y, rot.Z, rot.W));
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_TYPE:
-                        res.Add(new LSL_Integer(ScriptBaseClass.PRIM_TYPE_BOX));
-                        res.Add(new LSL_Integer(ScriptBaseClass.PRIM_HOLE_DEFAULT));
-                        res.Add(new LSL_Vector(0f,1.0f,0f));
-                        res.Add(new LSL_Float(0.0f));
-                        res.Add(new LSL_Vector(0, 0, 0));
-                        res.Add(new LSL_Vector(1.0f,1.0f,0f));
-                        res.Add(new LSL_Vector(0, 0, 0));
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_TEXTURE:
-                        if (remain < 1)
-                            return res;
-
-                        int face = (int)rules.GetLSLIntegerItem(idx++);
-                        if (face == ScriptBaseClass.ALL_SIDES)
-                        {
-                            for (face = 0; face < 21; face++)
-                            {
-                                res.Add(new LSL_String(""));
-                                res.Add(new LSL_Vector(0,0,0));
-                                res.Add(new LSL_Vector(0,0,0));
-                                res.Add(new LSL_Float(0.0));
-                            }
-                        }
-                        else
-                        {
-                            if (face >= 0 && face < 21)
-                            {
-                                res.Add(new LSL_String(""));
-                                res.Add(new LSL_Vector(0,0,0));
-                                res.Add(new LSL_Vector(0,0,0));
-                                res.Add(new LSL_Float(0.0));
-                            }
-                        }
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_COLOR:
-                        if (remain < 1)
-                            return res;
-
-                        face = (int)rules.GetLSLIntegerItem(idx++);
-
-                        if (face == ScriptBaseClass.ALL_SIDES)
-                        {
-                            for (face = 0; face < 21; face++)
-                            {
-                                res.Add(new LSL_Vector(0,0,0));
-                                res.Add(new LSL_Float(0));
-                            }
-                        }
-                        else
-                        {
-                                res.Add(new LSL_Vector(0,0,0));
-                                res.Add(new LSL_Float(0));
-                        }
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_BUMP_SHINY:
-                        if (remain < 1)
-                            return res;
-                        face = (int)rules.GetLSLIntegerItem(idx++);
-
-                        if (face == ScriptBaseClass.ALL_SIDES)
-                        {
-                            for (face = 0; face < 21; face++)
-                            {
-                                res.Add(new LSL_Integer(ScriptBaseClass.PRIM_SHINY_NONE));
-                                res.Add(new LSL_Integer(ScriptBaseClass.PRIM_BUMP_NONE));
-                            }
-                        }
-                        else
-                        {
-                                res.Add(new LSL_Integer(ScriptBaseClass.PRIM_SHINY_NONE));
-                                res.Add(new LSL_Integer(ScriptBaseClass.PRIM_BUMP_NONE));
-                        }
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_FULLBRIGHT:
-                        if (remain < 1)
-                            return res;
-                        face = (int)rules.GetLSLIntegerItem(idx++);
-
-                        if (face == ScriptBaseClass.ALL_SIDES)
-                        {
-                            for (face = 0; face < 21; face++)
-                            {
-                                res.Add(new LSL_Integer(ScriptBaseClass.FALSE));
-                            }
-                        }
-                        else
-                        {
-                                res.Add(new LSL_Integer(ScriptBaseClass.FALSE));
-                        }
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_FLEXIBLE:
-                        res.Add(new LSL_Integer(0));
-                        res.Add(new LSL_Integer(0));// softness
-                        res.Add(new LSL_Float(0.0f));   // gravity
-                        res.Add(new LSL_Float(0.0f));      // friction
-                        res.Add(new LSL_Float(0.0f));      // wind
-                        res.Add(new LSL_Float(0.0f));   // tension
-                        res.Add(new LSL_Vector(0f,0f,0f));
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_TEXGEN:
-                        // (PRIM_TEXGEN_DEFAULT, PRIM_TEXGEN_PLANAR)
-                        if (remain < 1)
-                            return res;
-                        face = (int)rules.GetLSLIntegerItem(idx++);
-
-                        if (face == ScriptBaseClass.ALL_SIDES)
-                        {
-                            for (face = 0; face < 21; face++)
-                            {
-                                    res.Add(new LSL_Integer(ScriptBaseClass.PRIM_TEXGEN_DEFAULT));
-                            }
-                        }
-                        else
-                        {
-                                res.Add(new LSL_Integer(ScriptBaseClass.PRIM_TEXGEN_DEFAULT));
-                        }
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_POINT_LIGHT:
-                        res.Add(new LSL_Integer(0));
-                        res.Add(new LSL_Vector(0f,0f,0f));
-                        res.Add(new LSL_Float(0f)); // intensity
-                        res.Add(new LSL_Float(0f));    // radius
-                        res.Add(new LSL_Float(0f));   // falloff
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_GLOW:
-                        if (remain < 1)
-                            return res;
-                        face = (int)rules.GetLSLIntegerItem(idx++);
-
-                        if (face == ScriptBaseClass.ALL_SIDES)
-                        {
-                            for (face = 0; face < 21; face++)
-                            {
-                                res.Add(new LSL_Float(0f));
-                            }
-                        }
-                        else
-                        {
-                                res.Add(new LSL_Float(0f));
-                        }
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_TEXT:
-                        res.Add(new LSL_String(""));
-                        res.Add(new LSL_Vector(0f,0f,0f));
-                        res.Add(new LSL_Float(1.0f));
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_NAME:
-                        res.Add(new LSL_String(avatar.Name));
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_DESC:
-                        res.Add(new LSL_String(""));
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_ROT_LOCAL:                      
-                        Quaternion lrot = avatar.Rotation;
-
-                        if (sitPart != null && sitPart != sitPart.ParentGroup.RootPart)
-                        {
-                            lrot = sitPart.RotationOffset * lrot; // apply sit part rotation offset
-                        }
-                        res.Add(new LSL_Rotation(lrot.X, lrot.Y, lrot.Z, lrot.W));
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_POS_LOCAL:
-                        Vector3 lpos = avatar.OffsetPosition; // pos relative to sit part
-                        Vector3 lsitOffset = (Zrot(avatar.Rotation)) * (avatar.Appearance.AvatarHeight * 0.02638f * 2.0f);
-                        lpos -= lsitOffset;
-
-                        if (sitPart != null && sitPart != sitPart.ParentGroup.RootPart)
-                        {
-                            lpos = sitPart.OffsetPosition + (lpos * sitPart.RotationOffset); // make it relative to root prim
-                        }
-                        res.Add(new LSL_Vector(lpos.X,lpos.Y,lpos.Z));
-                        break;
-
-                    case (int)ScriptBaseClass.PRIM_LINK_TARGET:
-                        if (remain < 3) // setting to 3 on the basis that parsing any usage of PRIM_LINK_TARGET that has nothing following it is pointless.
-                            return res;
-                        LSL_Integer new_linknumber = rules.GetLSLIntegerItem(idx++);
-                        LSL_List new_rules = rules.GetSublist(idx, -1);
-
-                        res += llGetLinkPrimitiveParams((int)new_linknumber, new_rules);
-                        return res;
+                    linknumber = remaining.GetLSLIntegerItem(0);
+                    rules = remaining.GetSublist(1, -1);
                 }
             }
+
             return res;
         }
 
-        public LSL_List GetLinkPrimitiveParams(SceneObjectPart part, LSL_List rules)
+        public LSL_List GetPrimParams(SceneObjectPart part, LSL_List rules, ref LSL_List res)
         {
-            LSL_List res = new LSL_List();
             int idx=0;
             while (idx < rules.Length)
             {
@@ -9316,7 +8845,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                     case (int)ScriptBaseClass.PRIM_TEXTURE:
                         if (remain < 1)
-                            return res;
+                            return null;
 
                         int face = (int)rules.GetLSLIntegerItem(idx++);
                         Primitive.TextureEntry tex = part.Shape.Textures;
@@ -9356,7 +8885,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                     case (int)ScriptBaseClass.PRIM_COLOR:
                         if (remain < 1)
-                            return res;
+                            return null;
 
                         face=(int)rules.GetLSLIntegerItem(idx++);
 
@@ -9385,7 +8914,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                     case (int)ScriptBaseClass.PRIM_BUMP_SHINY:
                         if (remain < 1)
-                            return res;
+                            return null;
+
                         face = (int)rules.GetLSLIntegerItem(idx++);
 
                         tex = part.Shape.Textures;
@@ -9441,7 +8971,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                     case (int)ScriptBaseClass.PRIM_FULLBRIGHT:
                         if (remain < 1)
-                            return res;
+                            return null;
+
                         face = (int)rules.GetLSLIntegerItem(idx++);
 
                         tex = part.Shape.Textures;
@@ -9495,7 +9026,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     case (int)ScriptBaseClass.PRIM_TEXGEN:
                         // (PRIM_TEXGEN_DEFAULT, PRIM_TEXGEN_PLANAR)
                         if (remain < 1)
-                            return res;
+                            return null;
+
                         face = (int)rules.GetLSLIntegerItem(idx++);
 
                         tex = part.Shape.Textures;
@@ -9543,7 +9075,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                     case (int)ScriptBaseClass.PRIM_GLOW:
                         if (remain < 1)
-                            return res;
+                            return null;
+
                         face = (int)rules.GetLSLIntegerItem(idx++);
 
                         tex = part.Shape.Textures;
@@ -9587,18 +9120,24 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     case (int)ScriptBaseClass.PRIM_POS_LOCAL:
                         res.Add(new LSL_Vector(GetPartLocalPos(part)));
                         break;
-
+                    case (int)ScriptBaseClass.PRIM_SLICE:
+                        PrimType prim_type = part.GetPrimType();
+                        bool useProfileBeginEnd = (prim_type == PrimType.SPHERE || prim_type == PrimType.TORUS || prim_type == PrimType.TUBE || prim_type == PrimType.RING);
+                        res.Add(new LSL_Vector(
+                            (useProfileBeginEnd ? part.Shape.ProfileBegin : part.Shape.PathBegin) / 50000.0,
+                            1 - (useProfileBeginEnd ? part.Shape.ProfileEnd : part.Shape.PathEnd) / 50000.0,
+                            0
+                        ));
+                        break;
                     case (int)ScriptBaseClass.PRIM_LINK_TARGET:
-                        if (remain < 3) // setting to 3 on the basis that parsing any usage of PRIM_LINK_TARGET that has nothing following it is pointless.
-                            return res;
-                        LSL_Integer new_linknumber = rules.GetLSLIntegerItem(idx++);
-                        LSL_List new_rules = rules.GetSublist(idx, -1);
-                        LSL_List tres = llGetLinkPrimitiveParams((int)new_linknumber, new_rules);
-                        res += tres;
-                        return res;                       
+                        if(remain < 3)
+                            return null;
+
+                        return rules.GetSublist(idx, -1);
                 }
             }
-            return res;
+
+            return null;
         }
 
         public LSL_List llGetPrimMediaParams(int face, LSL_List rules)
@@ -10511,11 +10050,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                 GridRegion info;
 
-                if (m_ScriptEngine.World.RegionInfo.RegionName == simulator) //Det data for this simulator?
-
-                    info = new GridRegion(m_ScriptEngine.World.RegionInfo);
+                if (World.RegionInfo.RegionName == simulator)
+                    info = new GridRegion(World.RegionInfo);
                 else
-                    info = m_ScriptEngine.World.GridService.GetRegionByName(m_ScriptEngine.World.RegionInfo.ScopeID, simulator);
+                    info = World.GridService.GetRegionByName(m_ScriptEngine.World.RegionInfo.ScopeID, simulator);
 
                 switch (data)
                 {
@@ -10525,9 +10063,24 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             ScriptSleep(1000);
                             return UUID.Zero.ToString();
                         }
-                        if (m_ScriptEngine.World.RegionInfo.RegionName != simulator)
+
+                        bool isHypergridRegion = false;
+
+                        if (World.RegionInfo.RegionName != simulator && info.RegionSecret != "")
+                        {
+                            // Hypergrid is currently placing real destination region co-ords into RegionSecret.
+                            // But other code can also use this field for a genuine RegionSecret!  Therefore, if
+                            // anything is present we need to disambiguate.
+                            //
+                            // FIXME: Hypergrid should be storing this data in a different field.
+                            RegionFlags regionFlags
+                                = (RegionFlags)m_ScriptEngine.World.GridService.GetRegionFlags(
+                                    info.ScopeID, info.RegionID);
+                            isHypergridRegion = (regionFlags & RegionFlags.Hyperlink) != 0;
+                        }
+
+                        if (isHypergridRegion)
                         {
-                            //Hypergrid Region co-ordinates
                             uint rx = 0, ry = 0;
                             Utils.LongToUInts(Convert.ToUInt64(info.RegionSecret), out rx, out ry);
 
@@ -10538,7 +10091,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         }
                         else
                         {
-                            //Local-cooridnates
+                            // Local grid co-oridnates
                             reply = new LSL_Vector(
                                 info.RegionLocX,
                                 info.RegionLocY,
@@ -10992,20 +10545,20 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     switch ((ParcelMediaCommandEnum) Convert.ToInt32(aList.Data[i].ToString()))
                     {
                         case ParcelMediaCommandEnum.Url:
-                            list.Add(new LSL_String(World.GetLandData(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y).MediaURL));
+                            list.Add(new LSL_String(World.GetLandData(m_host.AbsolutePosition).MediaURL));
                             break;
                         case ParcelMediaCommandEnum.Desc:
-                            list.Add(new LSL_String(World.GetLandData(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y).Description));
+                            list.Add(new LSL_String(World.GetLandData(m_host.AbsolutePosition).Description));
                             break;
                         case ParcelMediaCommandEnum.Texture:
-                            list.Add(new LSL_String(World.GetLandData(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y).MediaID.ToString()));
+                            list.Add(new LSL_String(World.GetLandData(m_host.AbsolutePosition).MediaID.ToString()));
                             break;
                         case ParcelMediaCommandEnum.Type:
-                            list.Add(new LSL_String(World.GetLandData(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y).MediaType));
+                            list.Add(new LSL_String(World.GetLandData(m_host.AbsolutePosition).MediaType));
                             break;
                         case ParcelMediaCommandEnum.Size:
-                            list.Add(new LSL_String(World.GetLandData(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y).MediaWidth));
-                            list.Add(new LSL_String(World.GetLandData(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y).MediaHeight));
+                            list.Add(new LSL_String(World.GetLandData(m_host.AbsolutePosition).MediaWidth));
+                            list.Add(new LSL_String(World.GetLandData(m_host.AbsolutePosition).MediaHeight));
                             break;
                         default:
                             ParcelMediaCommandEnum mediaCommandEnum = ParcelMediaCommandEnum.Url;
@@ -11175,9 +10728,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             ScenePresence avatar = World.GetScenePresence(detectedParams.Key);
             if (avatar != null)
             {
-                avatar.ControllingClient.SendScriptTeleportRequest(m_host.Name, simname,
-                                                                   new Vector3((float)pos.x, (float)pos.y, (float)pos.z),
-                                                                   new Vector3((float)lookAt.x, (float)lookAt.y, (float)lookAt.z));
+                avatar.ControllingClient.SendScriptTeleportRequest(m_host.Name,
+                    simname, pos, lookAt);
             }
             
             ScriptSleep(1000);
@@ -11362,31 +10914,30 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_Float llListStatistics(int operation, LSL_List src)
         {
             m_host.AddScriptLPS(1);
-            LSL_List nums = LSL_List.ToDoubleList(src);
             switch (operation)
             {
                 case ScriptBaseClass.LIST_STAT_RANGE:
-                    return nums.Range();
+                    return src.Range();
                 case ScriptBaseClass.LIST_STAT_MIN:
-                    return nums.Min();
+                    return src.Min();
                 case ScriptBaseClass.LIST_STAT_MAX:
-                    return nums.Max();
+                    return src.Max();
                 case ScriptBaseClass.LIST_STAT_MEAN:
-                    return nums.Mean();
+                    return src.Mean();
                 case ScriptBaseClass.LIST_STAT_MEDIAN:
-                    return nums.Median();
+                    return LSL_List.ToDoubleList(src).Median();
                 case ScriptBaseClass.LIST_STAT_NUM_COUNT:
-                    return nums.NumericLength();
+                    return src.NumericLength();
                 case ScriptBaseClass.LIST_STAT_STD_DEV:
-                    return nums.StdDev();
+                    return src.StdDev();
                 case ScriptBaseClass.LIST_STAT_SUM:
-                    return nums.Sum();
+                    return src.Sum();
                 case ScriptBaseClass.LIST_STAT_SUM_SQUARES:
-                    return nums.SumSqrs();
+                    return src.SumSqrs();
                 case ScriptBaseClass.LIST_STAT_GEOMETRIC_MEAN:
-                    return nums.GeometricMean();
+                    return src.GeometricMean();
                 case ScriptBaseClass.LIST_STAT_HARMONIC_MEAN:
-                    return nums.HarmonicMean();
+                    return src.HarmonicMean();
                 default:
                     return 0.0;
             }
@@ -11744,7 +11295,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_List llGetParcelDetails(LSL_Vector pos, LSL_List param)
         {
             m_host.AddScriptLPS(1);
-            LandData land = World.GetLandData((float)pos.x, (float)pos.y);
+            LandData land = World.GetLandData(pos);
             if (land == null)
             {
                 return new LSL_List(0);
@@ -11912,13 +11463,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                                     else
                                         rot = obj.GetWorldRotation();
 
-                                    LSL_Rotation objrot = new LSL_Rotation(rot.X, rot.Y, rot.Z, rot.W);
+                                    LSL_Rotation objrot = new LSL_Rotation(rot);
                                     ret.Add(objrot);
                                 }
                                 break;
                             case ScriptBaseClass.OBJECT_VELOCITY:
-                                Vector3 ovel = obj.Velocity;
-                                ret.Add(new LSL_Vector(ovel.X, ovel.Y, ovel.Z));
+                                ret.Add(new LSL_Vector(obj.Velocity));
                                 break;
                             case ScriptBaseClass.OBJECT_OWNER:
                                 ret.Add(new LSL_String(obj.OwnerID.ToString()));
@@ -12005,12 +11555,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         internal void Deprecated(string command)
         {
-            throw new Exception("Command deprecated: " + command);
+            throw new ScriptException("Command deprecated: " + command);
         }
 
         internal void LSLError(string msg)
         {
-            throw new Exception("LSL Runtime Error: " + msg);
+            throw new ScriptException("LSL Runtime Error: " + msg);
         }
 
         public delegate void AssetRequestCallback(UUID assetID, AssetBase asset);
@@ -12131,7 +11681,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return tid.ToString();
         }
 
-        public void SetPrimitiveParamsEx(LSL_Key prim, LSL_List rules)
+        public void SetPrimitiveParamsEx(LSL_Key prim, LSL_List rules, string originFunc)
         {
             SceneObjectPart obj = World.GetSceneObjectPart(new UUID(prim));
             if (obj == null)
@@ -12140,28 +11690,41 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             if (obj.OwnerID != m_host.OwnerID)
                 return;
 
-            LSL_List remaining = SetPrimParams(obj, rules);
+            uint rulesParsed = 0;
+            LSL_List remaining = SetPrimParams(obj, rules, originFunc, ref rulesParsed);
 
             while ((object)remaining != null && remaining.Length > 2)
             {
                 LSL_Integer newLink = remaining.GetLSLIntegerItem(0);
                 LSL_List newrules = remaining.GetSublist(1, -1);
                 foreach(SceneObjectPart part in GetLinkParts(obj, newLink)){
-                    remaining = SetPrimParams(part, newrules);
+                    remaining = SetPrimParams(part, newrules, originFunc, ref rulesParsed);
                 }
             }
         }
 
-        public LSL_List GetLinkPrimitiveParamsEx(LSL_Key prim, LSL_List rules)
+        public LSL_List GetPrimitiveParamsEx(LSL_Key prim, LSL_List rules)
         {
             SceneObjectPart obj = World.GetSceneObjectPart(new UUID(prim));
-            if (obj == null)
-                return new LSL_List();
 
-            if (obj.OwnerID != m_host.OwnerID)
-                return new LSL_List();
+            LSL_List result = new LSL_List();
 
-            return GetLinkPrimitiveParams(obj, rules);
+            if (obj != null && obj.OwnerID != m_host.OwnerID)
+            {
+                LSL_List remaining = GetPrimParams(obj, rules, ref result);
+
+                while (remaining != null && remaining.Length > 2)
+                {
+                    int linknumber = remaining.GetLSLIntegerItem(0);
+                    rules = remaining.GetSublist(1, -1);
+                    List<SceneObjectPart> parts = GetLinkParts(linknumber);
+
+                    foreach (SceneObjectPart part in parts)
+                        remaining = GetPrimParams(part, rules, ref result);
+                }
+            }
+
+            return result;
         }
 
         public LSL_Integer llGetLinkNumberOfSides(LSL_Integer link)
@@ -12524,8 +12087,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             m_host.AddScriptLPS(1);
 
-            Vector3 rayStart = new Vector3((float)start.x, (float)start.y, (float)start.z);
-            Vector3 rayEnd = new Vector3((float)end.x, (float)end.y, (float)end.z);
+            Vector3 rayStart = start;
+            Vector3 rayEnd = end;
             Vector3 dir = rayEnd - rayStart;
 
             float dist = Vector3.Mag(dir);
@@ -13099,6 +12662,455 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 }
             }
         }
+
+        protected LSL_List SetPrimParams(ScenePresence av, LSL_List rules, string originFunc, ref uint rulesParsed)
+        {
+            //This is a special version of SetPrimParams to deal with avatars which are sat on the linkset.
+
+            int idx = 0;
+            int idxStart = 0;
+
+            bool positionChanged = false;
+            Vector3 finalPos = Vector3.Zero;
+
+            try
+            {
+                while (idx < rules.Length)
+                {
+                    ++rulesParsed;
+                    int code = rules.GetLSLIntegerItem(idx++);
+
+                    int remain = rules.Length - idx;
+                    idxStart = idx;
+
+                    switch (code)
+                    {
+                        case (int)ScriptBaseClass.PRIM_POSITION:
+                        case (int)ScriptBaseClass.PRIM_POS_LOCAL:
+                            {
+                                if (remain < 1)
+                                    return null;
+
+                                LSL_Vector v;
+                                v = rules.GetVector3Item(idx++);
+
+                                SceneObjectPart part = World.GetSceneObjectPart(av.ParentID);
+                                if (part == null)
+                                    break;
+
+                                LSL_Rotation localRot = ScriptBaseClass.ZERO_ROTATION;
+                                LSL_Vector localPos = ScriptBaseClass.ZERO_VECTOR;
+                                if (part.LinkNum > 1)
+                                {
+                                    localRot = GetPartLocalRot(part);
+                                    localPos = GetPartLocalPos(part);
+                                }
+
+                                v -= localPos;
+                                v /= localRot;
+
+                                LSL_Vector sitOffset = (llRot2Up(new LSL_Rotation(av.Rotation.X, av.Rotation.Y, av.Rotation.Z, av.Rotation.W)) * av.Appearance.AvatarHeight * 0.02638f);
+
+                                v = v + 2 * sitOffset;
+
+                                av.OffsetPosition = new Vector3((float)v.x, (float)v.y, (float)v.z);
+                                av.SendAvatarDataToAllAgents();
+
+                            }
+                            break;
+
+                        case (int)ScriptBaseClass.PRIM_ROT_LOCAL:
+                        case (int)ScriptBaseClass.PRIM_ROTATION:
+                            {
+                                if (remain < 1)
+                                    return null;
+
+                                LSL_Rotation r;
+                                r = rules.GetQuaternionItem(idx++);
+
+                                SceneObjectPart part = World.GetSceneObjectPart(av.ParentID);
+                                if (part == null)
+                                    break;
+
+                                LSL_Rotation localRot = ScriptBaseClass.ZERO_ROTATION;
+                                LSL_Vector localPos = ScriptBaseClass.ZERO_VECTOR;
+
+                                if (part.LinkNum > 1)
+                                    localRot = GetPartLocalRot(part);
+
+                                r = r * llGetRootRotation() / localRot;
+                                av.Rotation = new Quaternion((float)r.x, (float)r.y, (float)r.z, (float)r.s);
+                                av.SendAvatarDataToAllAgents();
+                            }
+                            break;
+
+                        // parse rest doing nothing but number of parameters error check
+                        case (int)ScriptBaseClass.PRIM_SIZE:
+                        case (int)ScriptBaseClass.PRIM_MATERIAL:
+                        case (int)ScriptBaseClass.PRIM_PHANTOM:
+                        case (int)ScriptBaseClass.PRIM_PHYSICS:
+                        case (int)ScriptBaseClass.PRIM_PHYSICS_SHAPE_TYPE:
+                        case (int)ScriptBaseClass.PRIM_TEMP_ON_REZ:
+                        case (int)ScriptBaseClass.PRIM_NAME:
+                        case (int)ScriptBaseClass.PRIM_DESC:
+                            if (remain < 1)
+                                return null;
+                            idx++;
+                            break;
+
+                        case (int)ScriptBaseClass.PRIM_GLOW:
+                        case (int)ScriptBaseClass.PRIM_FULLBRIGHT:
+                        case (int)ScriptBaseClass.PRIM_TEXGEN:
+                            if (remain < 2)
+                                return null;
+                            idx += 2;
+                            break;
+
+                        case (int)ScriptBaseClass.PRIM_TYPE:
+                            if (remain < 3)
+                                return null;
+                            code = (int)rules.GetLSLIntegerItem(idx++);
+                            remain = rules.Length - idx;
+                            switch (code)
+                            {
+                                case (int)ScriptBaseClass.PRIM_TYPE_BOX:
+                                case (int)ScriptBaseClass.PRIM_TYPE_CYLINDER:
+                                case (int)ScriptBaseClass.PRIM_TYPE_PRISM:
+                                    if (remain < 6)
+                                        return null;
+                                    idx += 6;
+                                    break;
+
+                                case (int)ScriptBaseClass.PRIM_TYPE_SPHERE:
+                                    if (remain < 5)
+                                        return null;
+                                    idx += 5;
+                                    break;
+
+                                case (int)ScriptBaseClass.PRIM_TYPE_TORUS:
+                                case (int)ScriptBaseClass.PRIM_TYPE_TUBE:
+                                case (int)ScriptBaseClass.PRIM_TYPE_RING:
+                                    if (remain < 11)
+                                        return null;
+                                    idx += 11;
+                                    break;
+
+                                case (int)ScriptBaseClass.PRIM_TYPE_SCULPT:
+                                    if (remain < 2)
+                                        return null;
+                                    idx += 2;
+                                    break;
+                            }
+                            break;
+
+                        case (int)ScriptBaseClass.PRIM_COLOR:
+                        case (int)ScriptBaseClass.PRIM_TEXT:
+                        case (int)ScriptBaseClass.PRIM_BUMP_SHINY:
+                        case (int)ScriptBaseClass.PRIM_OMEGA:
+                            if (remain < 3)
+                                return null;
+                            idx += 3;
+                            break;
+
+                        case (int)ScriptBaseClass.PRIM_TEXTURE:
+                        case (int)ScriptBaseClass.PRIM_POINT_LIGHT:
+                        case (int)ScriptBaseClass.PRIM_PHYSICS_MATERIAL:
+                            if (remain < 5)
+                                return null;
+                            idx += 5;
+                            break;
+
+                        case (int)ScriptBaseClass.PRIM_FLEXIBLE:
+                            if (remain < 7)
+                                return null;
+
+                            idx += 7;
+                            break;
+
+                        case (int)ScriptBaseClass.PRIM_LINK_TARGET:
+                            if (remain < 3) // setting to 3 on the basis that parsing any usage of PRIM_LINK_TARGET that has nothing following it is pointless.
+                                return null;
+
+                            return rules.GetSublist(idx, -1);
+                    }
+                }
+            }
+            catch (InvalidCastException e)
+            {
+                ShoutError(string.Format(
+                        "{0} error running rule #{1}: arg #{2} ",
+                        originFunc, rulesParsed, idx - idxStart) + e.Message);
+            }
+            finally
+            {
+                if (positionChanged)
+                {
+                    av.OffsetPosition = finalPos;
+//                    av.SendAvatarDataToAllAgents();
+                    av.SendTerseUpdateToAllClients();
+                    positionChanged = false;
+                }
+            }
+            return null;
+        }
+
+        public LSL_List GetPrimParams(ScenePresence avatar, LSL_List rules, ref LSL_List res)
+        {
+            // avatars case
+            // replies as SL wiki
+
+//            SceneObjectPart sitPart = avatar.ParentPart; // most likelly it will be needed
+            SceneObjectPart sitPart = World.GetSceneObjectPart(avatar.ParentID); // maybe better do this expensive search for it in case it's gone??
+
+            int idx = 0;
+            while (idx < rules.Length)
+            {
+                int code = (int)rules.GetLSLIntegerItem(idx++);
+                int remain = rules.Length - idx;
+
+                switch (code)
+                {
+                    case (int)ScriptBaseClass.PRIM_MATERIAL:
+                        res.Add(new LSL_Integer((int)SOPMaterialData.SopMaterial.Flesh));
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_PHYSICS:
+                            res.Add(new LSL_Integer(0));
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_TEMP_ON_REZ:
+                            res.Add(new LSL_Integer(0));
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_PHANTOM:
+                            res.Add(new LSL_Integer(0));
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_POSITION:
+
+                        Vector3 pos = avatar.OffsetPosition;
+
+                        Vector3 sitOffset = (Zrot(avatar.Rotation)) * (avatar.Appearance.AvatarHeight * 0.02638f *2.0f);
+                        pos -= sitOffset;
+
+                        if( sitPart != null)
+                            pos = sitPart.GetWorldPosition() + pos * sitPart.GetWorldRotation();
+
+                        res.Add(new LSL_Vector(pos.X,pos.Y,pos.Z));
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_SIZE:
+                        // as in llGetAgentSize above
+                        res.Add(new LSL_Vector(0.45f, 0.6f, avatar.Appearance.AvatarHeight));
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_ROTATION:
+                        Quaternion rot = avatar.Rotation;
+                        if (sitPart != null)
+                        {
+                            rot = sitPart.GetWorldRotation() * rot; // apply sit part world rotation
+                        }
+
+                        res.Add(new LSL_Rotation (rot.X, rot.Y, rot.Z, rot.W));
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_TYPE:
+                        res.Add(new LSL_Integer(ScriptBaseClass.PRIM_TYPE_BOX));
+                        res.Add(new LSL_Integer(ScriptBaseClass.PRIM_HOLE_DEFAULT));
+                        res.Add(new LSL_Vector(0f,1.0f,0f));
+                        res.Add(new LSL_Float(0.0f));
+                        res.Add(new LSL_Vector(0, 0, 0));
+                        res.Add(new LSL_Vector(1.0f,1.0f,0f));
+                        res.Add(new LSL_Vector(0, 0, 0));
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_TEXTURE:
+                        if (remain < 1)
+                            return null;
+
+                        int face = (int)rules.GetLSLIntegerItem(idx++);
+                        if (face == ScriptBaseClass.ALL_SIDES)
+                        {
+                            for (face = 0; face < 21; face++)
+                            {
+                                res.Add(new LSL_String(""));
+                                res.Add(new LSL_Vector(0,0,0));
+                                res.Add(new LSL_Vector(0,0,0));
+                                res.Add(new LSL_Float(0.0));
+                            }
+                        }
+                        else
+                        {
+                            if (face >= 0 && face < 21)
+                            {
+                                res.Add(new LSL_String(""));
+                                res.Add(new LSL_Vector(0,0,0));
+                                res.Add(new LSL_Vector(0,0,0));
+                                res.Add(new LSL_Float(0.0));
+                            }
+                        }
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_COLOR:
+                        if (remain < 1)
+                            return null;
+
+                        face = (int)rules.GetLSLIntegerItem(idx++);
+
+                        if (face == ScriptBaseClass.ALL_SIDES)
+                        {
+                            for (face = 0; face < 21; face++)
+                            {
+                                res.Add(new LSL_Vector(0,0,0));
+                                res.Add(new LSL_Float(0));
+                            }
+                        }
+                        else
+                        {
+                                res.Add(new LSL_Vector(0,0,0));
+                                res.Add(new LSL_Float(0));
+                        }
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_BUMP_SHINY:
+                        if (remain < 1)
+                            return null;
+                        face = (int)rules.GetLSLIntegerItem(idx++);
+
+                        if (face == ScriptBaseClass.ALL_SIDES)
+                        {
+                            for (face = 0; face < 21; face++)
+                            {
+                                res.Add(new LSL_Integer(ScriptBaseClass.PRIM_SHINY_NONE));
+                                res.Add(new LSL_Integer(ScriptBaseClass.PRIM_BUMP_NONE));
+                            }
+                        }
+                        else
+                        {
+                                res.Add(new LSL_Integer(ScriptBaseClass.PRIM_SHINY_NONE));
+                                res.Add(new LSL_Integer(ScriptBaseClass.PRIM_BUMP_NONE));
+                        }
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_FULLBRIGHT:
+                        if (remain < 1)
+                            return null;
+                        face = (int)rules.GetLSLIntegerItem(idx++);
+
+                        if (face == ScriptBaseClass.ALL_SIDES)
+                        {
+                            for (face = 0; face < 21; face++)
+                            {
+                                res.Add(new LSL_Integer(ScriptBaseClass.FALSE));
+                            }
+                        }
+                        else
+                        {
+                                res.Add(new LSL_Integer(ScriptBaseClass.FALSE));
+                        }
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_FLEXIBLE:
+                        res.Add(new LSL_Integer(0));
+                        res.Add(new LSL_Integer(0));// softness
+                        res.Add(new LSL_Float(0.0f));   // gravity
+                        res.Add(new LSL_Float(0.0f));      // friction
+                        res.Add(new LSL_Float(0.0f));      // wind
+                        res.Add(new LSL_Float(0.0f));   // tension
+                        res.Add(new LSL_Vector(0f,0f,0f));
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_TEXGEN:
+                        // (PRIM_TEXGEN_DEFAULT, PRIM_TEXGEN_PLANAR)
+                        if (remain < 1)
+                            return null;
+                        face = (int)rules.GetLSLIntegerItem(idx++);
+
+                        if (face == ScriptBaseClass.ALL_SIDES)
+                        {
+                            for (face = 0; face < 21; face++)
+                            {
+                                    res.Add(new LSL_Integer(ScriptBaseClass.PRIM_TEXGEN_DEFAULT));
+                            }
+                        }
+                        else
+                        {
+                                res.Add(new LSL_Integer(ScriptBaseClass.PRIM_TEXGEN_DEFAULT));
+                        }
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_POINT_LIGHT:
+                        res.Add(new LSL_Integer(0));
+                        res.Add(new LSL_Vector(0f,0f,0f));
+                        res.Add(new LSL_Float(0f)); // intensity
+                        res.Add(new LSL_Float(0f));    // radius
+                        res.Add(new LSL_Float(0f));   // falloff
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_GLOW:
+                        if (remain < 1)
+                            return null;
+                        face = (int)rules.GetLSLIntegerItem(idx++);
+
+                        if (face == ScriptBaseClass.ALL_SIDES)
+                        {
+                            for (face = 0; face < 21; face++)
+                            {
+                                res.Add(new LSL_Float(0f));
+                            }
+                        }
+                        else
+                        {
+                                res.Add(new LSL_Float(0f));
+                        }
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_TEXT:
+                        res.Add(new LSL_String(""));
+                        res.Add(new LSL_Vector(0f,0f,0f));
+                        res.Add(new LSL_Float(1.0f));
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_NAME:
+                        res.Add(new LSL_String(avatar.Name));
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_DESC:
+                        res.Add(new LSL_String(""));
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_ROT_LOCAL:                      
+                        Quaternion lrot = avatar.Rotation;
+
+                        if (sitPart != null && sitPart != sitPart.ParentGroup.RootPart)
+                        {
+                            lrot = sitPart.RotationOffset * lrot; // apply sit part rotation offset
+                        }
+                        res.Add(new LSL_Rotation(lrot.X, lrot.Y, lrot.Z, lrot.W));
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_POS_LOCAL:
+                        Vector3 lpos = avatar.OffsetPosition; // pos relative to sit part
+                        Vector3 lsitOffset = (Zrot(avatar.Rotation)) * (avatar.Appearance.AvatarHeight * 0.02638f * 2.0f);
+                        lpos -= lsitOffset;
+
+                        if (sitPart != null && sitPart != sitPart.ParentGroup.RootPart)
+                        {
+                            lpos = sitPart.OffsetPosition + (lpos * sitPart.RotationOffset); // make it relative to root prim
+                        }
+                        res.Add(new LSL_Vector(lpos.X,lpos.Y,lpos.Z));
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_LINK_TARGET:
+                        if (remain < 3) // setting to 3 on the basis that parsing any usage of PRIM_LINK_TARGET that has nothing following it is pointless.
+                            return null;
+
+                        return rules.GetSublist(idx, -1);
+                }
+            }
+
+            return null;
+        }
     }
 
     public class NotecardCache
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LS_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LS_Api.cs
index 795de80..ceb4660 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LS_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LS_Api.cs
@@ -304,7 +304,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     case (int)ScriptBaseClass.WL_CLOUD_DETAIL_XY_DENSITY:
                         idx++;
                         iV = rules.GetVector3Item(idx);
-                        wl.cloudDetailXYDensity = new Vector3((float)iV.x, (float)iV.y, (float)iV.z);
+                        wl.cloudDetailXYDensity = iV;
                         break;
                     case (int)ScriptBaseClass.WL_CLOUD_SCALE:
                         idx++;
@@ -329,7 +329,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     case (int)ScriptBaseClass.WL_CLOUD_XY_DENSITY:
                         idx++;
                         iV = rules.GetVector3Item(idx);
-                        wl.cloudXYDensity = new Vector3((float)iV.x, (float)iV.y, (float)iV.z);
+                        wl.cloudXYDensity = iV;
                         break;
                     case (int)ScriptBaseClass.WL_DENSITY_MULTIPLIER:
                         idx++;
@@ -384,7 +384,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     case (int)ScriptBaseClass.WL_REFLECTION_WAVELET_SCALE:
                         idx++;
                         iV = rules.GetVector3Item(idx);
-                        wl.reflectionWaveletScale = new Vector3((float)iV.x, (float)iV.y, (float)iV.z);
+                        wl.reflectionWaveletScale = iV;
                         break;
                     case (int)ScriptBaseClass.WL_REFRACT_SCALE_ABOVE:
                         idx++;
@@ -422,7 +422,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     case (int)ScriptBaseClass.WL_WATER_COLOR:
                         idx++;
                         iV = rules.GetVector3Item(idx);
-                        wl.waterColor = new Vector3((float)iV.x, (float)iV.y, (float)iV.z);
+                        wl.waterColor = iV;
                         break;
                     case (int)ScriptBaseClass.WL_WATER_FOG_DENSITY_EXPONENT:
                         idx++;
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
index 7844c75..8f34833 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
@@ -95,13 +95,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         internal void MODError(string msg)
         {
-            throw new Exception("MOD Runtime Error: " + msg);
+            throw new ScriptException("MOD Runtime Error: " + msg);
         }
 
-        //
-        //Dumps an error message on the debug console.
-        //
-
+        /// <summary>
+        /// Dumps an error message on the debug console.
+        /// </summary>
+        /// <param name='message'></param>
         internal void MODShoutError(string message) 
         {
             if (message.Length > 1023)
@@ -254,7 +254,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             
             object[] convertedParms = new object[parms.Length];
             for (int i = 0; i < parms.Length; i++)
-                convertedParms[i] = ConvertFromLSL(parms[i],signature[i]);
+                convertedParms[i] = ConvertFromLSL(parms[i],signature[i], fname);
 
             // now call the function, the contract with the function is that it will always return
             // non-null but don't trust it completely
@@ -294,7 +294,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         /// <summary>
         /// </summary>
-        protected object ConvertFromLSL(object lslparm, Type type)
+        protected object ConvertFromLSL(object lslparm, Type type, string fname)
         {
             // ---------- String ----------
             if (lslparm is LSL_String)
@@ -310,7 +310,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             // ---------- Integer ----------
             else if (lslparm is LSL_Integer)
             {
-                if (type == typeof(int))
+                if (type == typeof(int) || type == typeof(float))
                     return (int)(LSL_Integer)lslparm;
             }
 
@@ -333,8 +333,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             {
                 if (type == typeof(OpenMetaverse.Quaternion))
                 {
-                    LSL_Rotation rot = (LSL_Rotation)lslparm;
-                    return new OpenMetaverse.Quaternion((float)rot.x,(float)rot.y,(float)rot.z,(float)rot.s);
+                    return (OpenMetaverse.Quaternion)((LSL_Rotation)lslparm);
                 }
             }
 
@@ -343,8 +342,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             {
                 if (type == typeof(OpenMetaverse.Vector3))
                 {
-                    LSL_Vector vect = (LSL_Vector)lslparm;
-                    return new OpenMetaverse.Vector3((float)vect.x,(float)vect.y,(float)vect.z);
+                    return (OpenMetaverse.Vector3)((LSL_Vector)lslparm);
                 }
             }
 
@@ -361,29 +359,27 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             result[i] = (string)(LSL_String)plist[i];                            
                         else if (plist[i] is LSL_Integer)
                             result[i] = (int)(LSL_Integer)plist[i];
+                        // The int check exists because of the many plain old int script constants in ScriptBase which
+                        // are not LSL_Integers.
+                        else if (plist[i] is int)
+                            result[i] = plist[i];
                         else if (plist[i] is LSL_Float)
                             result[i] = (float)(LSL_Float)plist[i];
                         else if (plist[i] is LSL_Key)
                             result[i] = new UUID((LSL_Key)plist[i]);
                         else if (plist[i] is LSL_Rotation)
-                        {
-                            LSL_Rotation rot = (LSL_Rotation)plist[i];
-                            result[i] = new OpenMetaverse.Quaternion((float)rot.x,(float)rot.y,(float)rot.z,(float)rot.s);
-                        }
+                            result[i] = (Quaternion)((LSL_Rotation)plist[i]);
                         else if (plist[i] is LSL_Vector)
-                        {
-                            LSL_Vector vect = (LSL_Vector)plist[i];
-                            result[i] = new OpenMetaverse.Vector3((float)vect.x,(float)vect.y,(float)vect.z);
-                        }
+                            result[i] = (Vector3)((LSL_Vector)plist[i]);
                         else
-                            MODError("unknown LSL list element type");
+                            MODError(String.Format("{0}: unknown LSL list element type", fname));
                     }
 
                     return result;
                 }
             }
             
-            MODError(String.Format("parameter type mismatch; expecting {0}",type.Name));
+            MODError(String.Format("{1}: parameter type mismatch; expecting {0}",type.Name, fname));
             return null;
         }
 
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
index 80111f9..51c8c7e 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
@@ -141,6 +141,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         internal bool m_debuggerSafe = false;
         internal Dictionary<string, FunctionPerms > m_FunctionPerms = new Dictionary<string, FunctionPerms >();
 
+        protected IUrlModule m_UrlModule = null;
+
         public void Initialize(IScriptEngine ScriptEngine, SceneObjectPart host, TaskInventoryItem item)
         {
             m_ScriptEngine = ScriptEngine;
@@ -148,6 +150,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_item = item;
             m_debuggerSafe = m_ScriptEngine.Config.GetBoolean("DebuggerSafe", false);
 
+            m_UrlModule = m_ScriptEngine.World.RequestModuleInterface<IUrlModule>();
+
             if (m_ScriptEngine.Config.GetBoolean("AllowOSFunctions", false))
                 m_OSFunctionsEnabled = true;
 
@@ -214,7 +218,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
             else
             {
-                throw new Exception("OSSL Runtime Error: " + msg);
+                throw new ScriptException("OSSL Runtime Error: " + msg);
             }
         }
 
@@ -782,10 +786,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                         // We will launch the teleport on a new thread so that when the script threads are terminated
                         // before teleport in ScriptInstance.GetXMLState(), we don't end up aborting the one doing the teleporting.                        
-                        Util.FireAndForget(
-                            o => World.RequestTeleportLocation(presence.ControllingClient, regionName,
-                                new Vector3((float)position.x, (float)position.y, (float)position.z),
-                                new Vector3((float)lookat.x, (float)lookat.y, (float)lookat.z), (uint)TPFlags.ViaLocation));
+                        Util.FireAndForget(o => World.RequestTeleportLocation(
+                            presence.ControllingClient, regionName, position,
+                            lookat, (uint)TPFlags.ViaLocation));
 
                         ScriptSleep(5000);
 
@@ -828,10 +831,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                         // We will launch the teleport on a new thread so that when the script threads are terminated
                         // before teleport in ScriptInstance.GetXMLState(), we don't end up aborting the one doing the teleporting.
-                        Util.FireAndForget(
-                            o => World.RequestTeleportLocation(presence.ControllingClient, regionHandle,
-                                new Vector3((float)position.x, (float)position.y, (float)position.z),
-                                new Vector3((float)lookat.x, (float)lookat.y, (float)lookat.z), (uint)TPFlags.ViaLocation));
+                        Util.FireAndForget(o => World.RequestTeleportLocation(
+                            presence.ControllingClient, regionHandle, 
+                            position, lookat, (uint)TPFlags.ViaLocation));
 
                         ScriptSleep(5000);
 
@@ -1680,6 +1682,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 return;
             }
 
+            MessageObject(objUUID, message);
+        }
+
+        private void MessageObject(UUID objUUID, string message)
+        {
             object[] resobj = new object[] { new LSL_Types.LSLString(m_host.UUID.ToString()), new LSL_Types.LSLString(message) };
 
             SceneObjectPart sceneOP = World.GetSceneObjectPart(objUUID);
@@ -1782,18 +1789,24 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         protected string LoadNotecard(string notecardNameOrUuid)
         {
             UUID assetID = CacheNotecard(notecardNameOrUuid);
-            StringBuilder notecardData = new StringBuilder();
 
-            for (int count = 0; count < NotecardCache.GetLines(assetID); count++)
+            if (assetID != UUID.Zero)
             {
-                string line = NotecardCache.GetLine(assetID, count) + "\n";
-
-//                m_log.DebugFormat("[OSSL]: From notecard {0} loading line {1}", notecardNameOrUuid, line);
-
-                notecardData.Append(line);
+                StringBuilder notecardData = new StringBuilder();
+    
+                for (int count = 0; count < NotecardCache.GetLines(assetID); count++)
+                {
+                    string line = NotecardCache.GetLine(assetID, count) + "\n";
+    
+    //                m_log.DebugFormat("[OSSL]: From notecard {0} loading line {1}", notecardNameOrUuid, line);
+    
+                    notecardData.Append(line);
+                }
+    
+                return notecardData.ToString();
             }
 
-            return notecardData.ToString();
+            return null;
         }
 
         /// <summary>
@@ -2259,11 +2272,25 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             CheckThreatLevel(ThreatLevel.High, "osGetLinkPrimitiveParams");
             m_host.AddScriptLPS(1);
             InitLSL();
+            // One needs to cast m_LSL_Api because we're using functions not
+            // on the ILSL_Api interface.
+            LSL_Api LSL_Api = (LSL_Api)m_LSL_Api;
             LSL_List retVal = new LSL_List();
-            List<SceneObjectPart> parts = ((LSL_Api)m_LSL_Api).GetLinkParts(linknumber);
+            LSL_List remaining = null;
+            List<SceneObjectPart> parts = LSL_Api.GetLinkParts(linknumber);
             foreach (SceneObjectPart part in parts)
             {
-                retVal += ((LSL_Api)m_LSL_Api).GetLinkPrimitiveParams(part, rules);
+                remaining = LSL_Api.GetPrimParams(part, rules, ref retVal);
+            }
+
+            while (remaining != null && remaining.Length > 2)
+            {
+                linknumber = remaining.GetLSLIntegerItem(0);
+                rules = remaining.GetSublist(1, -1);
+                parts = LSL_Api.GetLinkParts(linknumber);
+
+                foreach (SceneObjectPart part in parts)
+                    remaining = LSL_Api.GetPrimParams(part, rules, ref retVal);
             }
             return retVal;
         }
@@ -2352,17 +2379,18 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             return UUID.Zero.ToString();
                         }
                     }
+                    else
+                    {
+                        OSSLError(string.Format("osNpcCreate: Notecard reference '{0}' not found.", notecard));
+                    }
                 }
 
-                if (appearance == null)
-                    return new LSL_Key(UUID.Zero.ToString());
-
                 UUID ownerID = UUID.Zero;
                 if (owned)
                     ownerID = m_host.OwnerID;
                 UUID x = module.CreateNPC(firstname,
                                           lastname,
-                                          new Vector3((float) position.x, (float) position.y, (float) position.z),
+                                          position,
                                           ownerID,
                                           senseAsAgent,
                                           World,
@@ -2425,6 +2453,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     return;
 
                 string appearanceSerialized = LoadNotecard(notecard);
+
+                if (appearanceSerialized == null)
+                    OSSLError(string.Format("osNpcCreate: Notecard reference '{0}' not found.", notecard));
+
                 OSDMap appearanceOsd = (OSDMap)OSDParser.DeserializeLLSDXml(appearanceSerialized);
 //                OSD a = OSDParser.DeserializeLLSDXml(appearanceSerialized);
 //                Console.WriteLine("appearanceSerialized {0}", appearanceSerialized);
@@ -2485,7 +2517,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return new LSL_Vector(0, 0, 0);
         }
 
-        public void osNpcMoveTo(LSL_Key npc, LSL_Vector position)
+        public void osNpcMoveTo(LSL_Key npc, LSL_Vector pos)
         {
             CheckThreatLevel(ThreatLevel.High, "osNpcMoveTo");
             m_host.AddScriptLPS(1);
@@ -2500,7 +2532,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 if (!module.CheckPermissions(npcId, m_host.OwnerID))
                     return;
                 
-                Vector3 pos = new Vector3((float) position.x, (float) position.y, (float) position.z);
                 module.MoveToTarget(npcId, World, pos, false, true, false);
             }
         }
@@ -2520,11 +2551,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 if (!module.CheckPermissions(npcId, m_host.OwnerID))
                     return;
 
-                Vector3 pos = new Vector3((float)target.x, (float)target.y, (float)target.z);
                 module.MoveToTarget(
                     new UUID(npc.m_string),
                     World,
-                    pos,
+                    target,
                     (options & ScriptBaseClass.OS_NPC_NO_FLY) != 0,
                     (options & ScriptBaseClass.OS_NPC_LAND_AT_TARGET) != 0,
                     (options & ScriptBaseClass.OS_NPC_RUNNING) != 0);
@@ -2576,7 +2606,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 ScenePresence sp = World.GetScenePresence(npcId);
 
                 if (sp != null)
-                    sp.Rotation = LSL_Api.Rot2Quaternion(rotation);
+                    sp.Rotation = rotation;
             }
         }
 
@@ -2936,7 +2966,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 avatar.SpeedModifier = (float)SpeedModifier;
         }
         
-        public void osKickAvatar(string FirstName,string SurName,string alert)
+        public void osKickAvatar(string FirstName, string SurName, string alert)
         {
             CheckThreatLevel(ThreatLevel.Severe, "osKickAvatar");
             m_host.AddScriptLPS(1);
@@ -2950,10 +2980,21 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         sp.ControllingClient.Kick(alert);
 
                     // ...and close on our side
-                    sp.Scene.IncomingCloseAgent(sp.UUID);
+                    sp.Scene.IncomingCloseAgent(sp.UUID, false);
                 }
             });
         }
+
+        public LSL_Float osGetHealth(string avatar)
+        {
+            CheckThreatLevel(ThreatLevel.None, "osGetHealth");
+            m_host.AddScriptLPS(1);
+
+            LSL_Float health = new LSL_Float(-1);
+            ScenePresence presence = World.GetScenePresence(new UUID(avatar));
+            if (presence != null) health = presence.Health;
+            return health;
+        }
         
         public void osCauseDamage(string avatar, double damage)
         {
@@ -2966,7 +3007,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             ScenePresence presence = World.GetScenePresence(avatarId); 
             if (presence != null)
             {
-                LandData land = World.GetLandData((float)pos.X, (float)pos.Y);
+                LandData land = World.GetLandData(pos);
                 if ((land.Flags & (uint)ParcelFlags.AllowDamage) == (uint)ParcelFlags.AllowDamage)
                 {
                     float health = presence.Health;
@@ -3013,7 +3054,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
             InitLSL();
             
-            return m_LSL_Api.GetLinkPrimitiveParamsEx(prim, rules);
+            return m_LSL_Api.GetPrimitiveParamsEx(prim, rules);
         }
 
         public void osSetPrimitiveParams(LSL_Key prim, LSL_List rules)
@@ -3022,7 +3063,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
             InitLSL();
             
-            m_LSL_Api.SetPrimitiveParamsEx(prim, rules);
+            m_LSL_Api.SetPrimitiveParamsEx(prim, rules, "osSetPrimitiveParams");
         }
         
         /// <summary>
@@ -3254,6 +3295,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
         }
 
+        #region Attachment commands
+
         public void osForceAttachToAvatar(int attachmentPoint)
         {
             CheckThreatLevel(ThreatLevel.High, "osForceAttachToAvatar");
@@ -3343,6 +3386,175 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             ((LSL_Api)m_LSL_Api).DetachFromAvatar();
         }
 
+        public LSL_List osGetNumberOfAttachments(LSL_Key avatar, LSL_List attachmentPoints)
+        {
+            CheckThreatLevel(ThreatLevel.Moderate, "osGetNumberOfAttachments");
+
+            m_host.AddScriptLPS(1);
+
+            UUID targetUUID;
+            ScenePresence target;
+            LSL_List resp = new LSL_List();
+
+            if (attachmentPoints.Length >= 1 && UUID.TryParse(avatar.ToString(), out targetUUID) && World.TryGetScenePresence(targetUUID, out target))
+            {
+                foreach (object point in attachmentPoints.Data)
+                {
+                    LSL_Integer ipoint = new LSL_Integer(
+                        (point is LSL_Integer || point is int || point is uint) ?
+                            (int)point :
+                            0
+                    );
+                    resp.Add(ipoint);
+                    if (ipoint == 0)
+                    {
+                        // indicates zero attachments
+                        resp.Add(new LSL_Integer(0));
+                    }
+                    else
+                    {
+                        // gets the number of attachments on the attachment point
+                        resp.Add(new LSL_Integer(target.GetAttachments((uint)ipoint).Count));
+                    }
+                }
+            }
+
+            return resp;
+        }
+
+        public void osMessageAttachments(LSL_Key avatar, string message, LSL_List attachmentPoints, int options)
+        {
+            CheckThreatLevel(ThreatLevel.Moderate, "osMessageAttachments");
+            m_host.AddScriptLPS(1);
+
+            UUID targetUUID;
+            ScenePresence target;
+
+            if (attachmentPoints.Length >= 1 && UUID.TryParse(avatar.ToString(), out targetUUID) && World.TryGetScenePresence(targetUUID, out target))
+            {
+                List<int> aps = new List<int>();
+                foreach (object point in attachmentPoints.Data)
+                {
+                    int ipoint;
+                    if (int.TryParse(point.ToString(), out ipoint))
+                    {
+                        aps.Add(ipoint);
+                    }
+                }
+
+                List<SceneObjectGroup> attachments = new List<SceneObjectGroup>();
+
+                bool msgAll = aps.Contains(ScriptBaseClass.OS_ATTACH_MSG_ALL);
+                bool invertPoints = (options & ScriptBaseClass.OS_ATTACH_MSG_INVERT_POINTS) != 0;
+
+                if (msgAll && invertPoints)
+                {
+                    return;
+                }
+                else if (msgAll || invertPoints)
+                {
+                    attachments = target.GetAttachments();
+                }
+                else
+                {
+                    foreach (int point in aps)
+                    {
+                        if (point > 0)
+                        {
+                            attachments.AddRange(target.GetAttachments((uint)point));
+                        }
+                    }
+                }
+
+                // if we have no attachments at this point, exit now
+                if (attachments.Count == 0)
+                {
+                    return;
+                }
+
+                List<SceneObjectGroup> ignoreThese = new List<SceneObjectGroup>();
+
+                if (invertPoints)
+                {
+                    foreach (SceneObjectGroup attachment in attachments)
+                    {
+                        if (aps.Contains((int)attachment.AttachmentPoint))
+                        {
+                            ignoreThese.Add(attachment);
+                        }
+                    }
+                }
+
+                foreach (SceneObjectGroup attachment in ignoreThese)
+                {
+                    attachments.Remove(attachment);
+                }
+                ignoreThese.Clear();
+
+                // if inverting removed all attachments to check, exit now
+                if (attachments.Count < 1)
+                {
+                    return;
+                }
+
+                if ((options & ScriptBaseClass.OS_ATTACH_MSG_OBJECT_CREATOR) != 0)
+                {
+                    foreach (SceneObjectGroup attachment in attachments)
+                    {
+                        if (attachment.RootPart.CreatorID != m_host.CreatorID)
+                        {
+                            ignoreThese.Add(attachment);
+                        }
+                    }
+
+                    foreach (SceneObjectGroup attachment in ignoreThese)
+                    {
+                        attachments.Remove(attachment);
+                    }
+                    ignoreThese.Clear();
+
+                    // if filtering by same object creator removed all
+                    //  attachments to check, exit now
+                    if (attachments.Count == 0)
+                    {
+                        return;
+                    }
+                }
+
+                if ((options & ScriptBaseClass.OS_ATTACH_MSG_SCRIPT_CREATOR) != 0)
+                {
+                    foreach (SceneObjectGroup attachment in attachments)
+                    {
+                        if (attachment.RootPart.CreatorID != m_item.CreatorID)
+                        {
+                            ignoreThese.Add(attachment);
+                        }
+                    }
+
+                    foreach (SceneObjectGroup attachment in ignoreThese)
+                    {
+                        attachments.Remove(attachment);
+                    }
+                    ignoreThese.Clear();
+
+                    // if filtering by object creator must match originating
+                    //  script creator removed all attachments to check,
+                    //  exit now
+                    if (attachments.Count == 0)
+                    {
+                        return;
+                    }
+                }
+
+                foreach (SceneObjectGroup attachment in attachments)
+                {
+                    MessageObject(attachment.RootPart.UUID, message);
+                }
+            }
+        }
+
+        #endregion
+
         /// <summary>
         /// Checks if thing is a UUID.
         /// </summary>
@@ -3392,5 +3604,166 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             return new LSL_Key(m_host.ParentGroup.FromPartID.ToString());
         }
+
+        /// <summary>
+        /// Sets the response type for an HTTP request/response
+        /// </summary>
+        /// <returns></returns>
+        public void osSetContentType(LSL_Key id, string type)
+        {
+            CheckThreatLevel(ThreatLevel.High, "osSetContentType");
+
+            if (m_UrlModule != null)
+                m_UrlModule.HttpContentType(new UUID(id),type);
+        }
+
+        /// Shout an error if the object owner did not grant the script the specified permissions.
+        /// </summary>
+        /// <param name="perms"></param>
+        /// <returns>boolean indicating whether an error was shouted.</returns>
+        protected bool ShoutErrorOnLackingOwnerPerms(int perms, string errorPrefix)
+        {
+            m_host.AddScriptLPS(1);
+            bool fail = false;
+            if (m_item.PermsGranter != m_host.OwnerID)
+            {
+                fail = true;
+                OSSLShoutError(string.Format("{0}. Permissions not granted to owner.", errorPrefix));
+            }
+            else if ((m_item.PermsMask & perms) == 0)
+            {
+                fail = true;
+                OSSLShoutError(string.Format("{0}. Permissions not granted.", errorPrefix));
+            }
+
+            return fail;
+        }
+
+        protected void DropAttachment(bool checkPerms)
+        {
+            if (checkPerms && ShoutErrorOnLackingOwnerPerms(ScriptBaseClass.PERMISSION_ATTACH, "Cannot drop attachment"))
+            {
+                return;
+            }
+
+            IAttachmentsModule attachmentsModule = m_ScriptEngine.World.AttachmentsModule;
+            ScenePresence sp = attachmentsModule == null ? null : m_host.ParentGroup.Scene.GetScenePresence(m_host.ParentGroup.OwnerID);
+
+            if (attachmentsModule != null && sp != null)
+            {
+                attachmentsModule.DetachSingleAttachmentToGround(sp, m_host.ParentGroup.LocalId);
+            }
+        }
+
+        protected void DropAttachmentAt(bool checkPerms, LSL_Vector pos, LSL_Rotation rot)
+        {
+            if (checkPerms && ShoutErrorOnLackingOwnerPerms(ScriptBaseClass.PERMISSION_ATTACH, "Cannot drop attachment"))
+            {
+                return;
+            }
+
+            IAttachmentsModule attachmentsModule = m_ScriptEngine.World.AttachmentsModule;
+            ScenePresence sp = attachmentsModule == null ? null : m_host.ParentGroup.Scene.GetScenePresence(m_host.ParentGroup.OwnerID);
+
+            if (attachmentsModule != null && sp != null)
+            {
+                attachmentsModule.DetachSingleAttachmentToGround(sp, m_host.ParentGroup.LocalId, pos, rot);
+            }
+        }
+
+        public void osDropAttachment()
+        {
+            CheckThreatLevel(ThreatLevel.Moderate, "osDropAttachment");
+            m_host.AddScriptLPS(1);
+
+            DropAttachment(true);
+        }
+
+        public void osForceDropAttachment()
+        {
+            CheckThreatLevel(ThreatLevel.High, "osForceDropAttachment");
+            m_host.AddScriptLPS(1);
+
+            DropAttachment(false);
+        }
+
+        public void osDropAttachmentAt(LSL_Vector pos, LSL_Rotation rot)
+        {
+            CheckThreatLevel(ThreatLevel.Moderate, "osDropAttachmentAt");
+            m_host.AddScriptLPS(1);
+
+            DropAttachmentAt(true, pos, rot);
+        }
+
+        public void osForceDropAttachmentAt(LSL_Vector pos, LSL_Rotation rot)
+        {
+            CheckThreatLevel(ThreatLevel.High, "osForceDropAttachmentAt");
+            m_host.AddScriptLPS(1);
+
+            DropAttachmentAt(false, pos, rot);
+        }
+
+        public LSL_Integer osListenRegex(int channelID, string name, string ID, string msg, int regexBitfield)
+        {
+            CheckThreatLevel(ThreatLevel.Low, "osListenRegex");
+            m_host.AddScriptLPS(1);
+            UUID keyID;
+            UUID.TryParse(ID, out keyID);
+
+            // if we want the name to be used as a regular expression, ensure it is valid first.
+            if ((regexBitfield & ScriptBaseClass.OS_LISTEN_REGEX_NAME) == ScriptBaseClass.OS_LISTEN_REGEX_NAME)
+            {
+                try
+                {
+                    Regex.IsMatch("", name);
+                }
+                catch (Exception)
+                {
+                    OSSLShoutError("Name regex is invalid.");
+                    return -1;
+                }
+            }
+
+            // if we want the msg to be used as a regular expression, ensure it is valid first.
+            if ((regexBitfield & ScriptBaseClass.OS_LISTEN_REGEX_MESSAGE) == ScriptBaseClass.OS_LISTEN_REGEX_MESSAGE)
+            {
+                try
+                {
+                    Regex.IsMatch("", msg);
+                }
+                catch (Exception)
+                {
+                    OSSLShoutError("Message regex is invalid.");
+                    return -1;
+                }
+            }
+
+            IWorldComm wComm = m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
+            return (wComm == null) ? -1 : wComm.Listen(
+                m_host.LocalId,
+                m_item.ItemID,
+                m_host.UUID,
+                channelID,
+                name,
+                keyID,
+                msg,
+                regexBitfield
+            );
+        }
+
+        public LSL_Integer osRegexIsMatch(string input, string pattern)
+        {
+            CheckThreatLevel(ThreatLevel.Low, "osRegexIsMatch");
+            m_host.AddScriptLPS(1);
+            try
+            {
+                return Regex.IsMatch(input, pattern) ? 1 : 0;
+            }
+            catch (Exception)
+            {
+                OSSLShoutError("Possible invalid regular expression detected.");
+                return 0;
+            }
+        }
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
index 678f9d5..4dd795d 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
@@ -352,7 +352,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
                 q = avatar.Rotation;
             }
 
-            LSL_Types.Quaternion r = new LSL_Types.Quaternion(q.X, q.Y, q.Z, q.W);
+            LSL_Types.Quaternion r = new LSL_Types.Quaternion(q);
             LSL_Types.Vector3 forward_dir = (new LSL_Types.Vector3(1, 0, 0) * r);
             double mag_fwd = LSL_Types.Vector3.Mag(forward_dir);
 
@@ -429,9 +429,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
                             try
                             {
                                 Vector3 diff = toRegionPos - fromRegionPos;
-                                LSL_Types.Vector3 obj_dir = new LSL_Types.Vector3(diff.X, diff.Y, diff.Z);
-                                double dot = LSL_Types.Vector3.Dot(forward_dir, obj_dir);
-                                double mag_obj = LSL_Types.Vector3.Mag(obj_dir);
+                                double dot = LSL_Types.Vector3.Dot(forward_dir, diff);
+                                double mag_obj = LSL_Types.Vector3.Mag(diff);
                                 ang_obj = Math.Acos(dot / (mag_fwd * mag_obj));
                             }
                             catch
@@ -483,7 +482,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
                 q = avatar.Rotation;
             }
 
-            LSL_Types.Quaternion r = new LSL_Types.Quaternion(q.X, q.Y, q.Z, q.W);
+            LSL_Types.Quaternion r = new LSL_Types.Quaternion(q);
             LSL_Types.Vector3 forward_dir = (new LSL_Types.Vector3(1, 0, 0) * r);
             double mag_fwd = LSL_Types.Vector3.Mag(forward_dir);
             bool attached = (SensePoint.ParentGroup.AttachmentPoint != 0);
@@ -564,8 +563,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
                         double ang_obj = 0;
                         try
                         {
-                            Vector3 diff = toRegionPos - fromRegionPos;
-                            LSL_Types.Vector3 obj_dir = new LSL_Types.Vector3(diff.X, diff.Y, diff.Z);
+                            LSL_Types.Vector3 obj_dir = new LSL_Types.Vector3(
+                                toRegionPos - fromRegionPos);
                             double dot = LSL_Types.Vector3.Dot(forward_dir, obj_dir);
                             double mag_obj = LSL_Types.Vector3.Mag(obj_dir);
                             ang_obj = Math.Acos(dot / (mag_fwd * mag_obj));
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
index af35258..05c20f9 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
@@ -429,8 +429,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
        LSL_Integer llGetLinkNumberOfSides(LSL_Integer link);
               void llSetPhysicsMaterial(int material_bits, float material_gravity_modifier, float material_restitution, float material_friction, float material_density);
 
-              void SetPrimitiveParamsEx(LSL_Key prim, LSL_List rules);
-          LSL_List GetLinkPrimitiveParamsEx(LSL_Key prim, LSL_List rules);
+              void SetPrimitiveParamsEx(LSL_Key prim, LSL_List rules, string originFunc);
               void llSetKeyframedMotion(LSL_List frames, LSL_List options);
+          LSL_List GetPrimitiveParamsEx(LSL_Key prim, LSL_List rules);
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
index 8c34ed3..c447d1f 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
@@ -40,16 +40,75 @@ using LSL_Key = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
 
 namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
 {
+    /// <summary>
+    /// To permit region owners to enable the extended scripting functionality
+    /// of OSSL, without allowing malicious scripts to access potentially
+    /// troublesome functions, each OSSL function is assigned a threat level,
+    /// and access to the functions is granted or denied based on a default
+    /// threshold set in OpenSim.ini (which can be overridden for individual
+    /// functions on a case-by-case basis)
+    /// </summary>
     public enum ThreatLevel
     {
+        // Not documented, presumably means permanently disabled ?
         NoAccess = -1,
+
+        /// <summary>
+        /// Function is no threat at all. It doesn't constitute a threat to 
+        /// either users or the system and has no known side effects.
+        /// </summary>
         None = 0,
+
+        /// <summary>
+        /// Abuse of this command can cause a nuisance to the region operator,
+        /// such as log message spew.
+        /// </summary>
         Nuisance = 1,
+
+        /// <summary>
+        /// Extreme levels of abuse of this function can cause impaired 
+        /// functioning of the region, or very gullible users can be tricked
+        /// into experiencing harmless effects.
+        /// </summary>
         VeryLow = 2,
+
+        /// <summary>
+        /// Intentional abuse can cause crashes or malfunction under certain
+        /// circumstances, which can be easily rectified; or certain users can
+        /// be tricked into certain situations in an avoidable manner.
+        /// </summary>
         Low = 3,
+
+        /// <summary>
+        /// Intentional abuse can cause denial of service and crashes with
+        /// potential of data or state loss; or trusting users can be tricked 
+        /// into embarrassing or uncomfortable situations.
+        /// </summary>
         Moderate = 4,
+
+        /// <summary>
+        /// Casual abuse can cause impaired functionality or temporary denial
+        /// of service conditions. Intentional abuse can easily cause crashes
+        /// with potential data loss, or can be used to trick experienced and
+        /// cautious users into unwanted situations, or changes global data
+        /// permanently and without undo ability.
+        /// </summary>
         High = 5,
+
+        /// <summary>
+        /// Even normal use may, depending on the number of instances, or
+        /// frequency of use, result in severe service impairment or crash
+        /// with loss of data, or can be used to cause unwanted or harmful
+        /// effects on users without giving the user a means to avoid it.
+        /// </summary>
         VeryHigh = 6,
+
+        /// <summary>
+        /// Even casual use is a danger to region stability, or function allows
+        /// console or OS command execution, or function allows taking money
+        /// without consent, or allows deletion or modification of user data,
+        /// or allows the compromise of sensitive data by design.
+        /// </summary>
         Severe = 7
     };
 
@@ -98,7 +157,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         void osAvatarPlayAnimation(string avatar, string animation);
         void osAvatarStopAnimation(string avatar, string animation);
 
-        // Attachment commands
+        #region Attachment commands
 
         /// <summary>
         /// Attach the object containing this script to the avatar that owns it without asking for PERMISSION_ATTACH
@@ -133,6 +192,29 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         /// <remarks>Nothing happens if the object is not attached.</remarks>
         void osForceDetachFromAvatar();
 
+        /// <summary>
+        /// Returns a strided list of the specified attachment points and the number of attachments on those points.
+        /// </summary>
+        /// <param name="avatar">avatar UUID</param>
+        /// <param name="attachmentPoints">list of ATTACH_* constants</param>
+        /// <returns></returns>
+        LSL_List osGetNumberOfAttachments(LSL_Key avatar, LSL_List attachmentPoints);
+
+        /// <summary>
+        /// Sends a specified message to the specified avatar's attachments on
+        ///     the specified attachment points.
+        /// </summary>
+        /// <remarks>
+        /// Behaves as osMessageObject(), without the sending script needing to know the attachment keys in advance.
+        /// </remarks>
+        /// <param name="avatar">avatar UUID</param>
+        /// <param name="message">message string</param>
+        /// <param name="attachmentPoints">list of ATTACH_* constants, or -1 for all attachments. If -1 is specified and OS_ATTACH_MSG_INVERT_POINTS is present in flags, no action is taken.</param>
+        /// <param name="flags">flags further constraining the attachments to deliver the message to.</param>
+        void osMessageAttachments(LSL_Key avatar, string message, LSL_List attachmentPoints, int flags);
+
+        #endregion
+
         //texture draw functions
         string osMovePen(string drawList, int x, int y);
         string osDrawLine(string drawList, int startX, int startY, int endX, int endY);
@@ -258,6 +340,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         int osGetSimulatorMemory();
         void osKickAvatar(string FirstName,string SurName,string alert);
         void osSetSpeed(string UUID, LSL_Float SpeedModifier);
+        LSL_Float osGetHealth(string avatar);
         void osCauseHealing(string avatar, double healing);
         void osCauseDamage(string avatar, double damage);
         LSL_List osGetPrimitiveParams(LSL_Key prim, LSL_List rules);
@@ -305,5 +388,59 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         /// </summary>
         /// <returns>Rezzing object key or NULL_KEY if rezzed by agent or otherwise unknown.</returns>
         LSL_Key osGetRezzingObject();
+
+        /// <summary>
+        /// Sets the response type for an HTTP request/response
+        /// </summary>
+        /// <returns></returns>
+        void osSetContentType(LSL_Key id, string type);
+
+        /// <summary>
+        /// Attempts to drop an attachment to the ground
+        /// </summary>
+        void osDropAttachment();
+
+        /// <summary>
+        /// Attempts to drop an attachment to the ground while bypassing the script permissions
+        /// </summary>
+        void osForceDropAttachment();
+
+        /// <summary>
+        /// Attempts to drop an attachment at the specified coordinates.
+        /// </summary>
+        /// <param name="pos"></param>
+        /// <param name="rot"></param>
+        void osDropAttachmentAt(vector pos, rotation rot);
+
+        /// <summary>
+        /// Attempts to drop an attachment at the specified coordinates while bypassing the script permissions
+        /// </summary>
+        /// <param name="pos"></param>
+        /// <param name="rot"></param>
+        void osForceDropAttachmentAt(vector pos, rotation rot);
+
+        /// <summary>
+        /// Identical to llListen except for a bitfield which indicates which
+        /// string parameters should be parsed as regex patterns.
+        /// </summary>
+        /// <param name="channelID"></param>
+        /// <param name="name"></param>
+        /// <param name="ID"></param>
+        /// <param name="msg"></param>
+        /// <param name="regexBitfield">
+        /// OS_LISTEN_REGEX_NAME
+        /// OS_LISTEN_REGEX_MESSAGE
+        /// </param>
+        /// <returns></returns>
+        LSL_Integer osListenRegex(int channelID, string name, string ID,
+                string msg, int regexBitfield);
+
+        /// <summary>
+        /// Wraps to bool Regex.IsMatch(string input, string pattern)
+        /// </summary>
+        /// <param name="input">string to test for match</param>
+        /// <param name="regex">string to use as pattern</param>
+        /// <returns>boolean</returns>
+        LSL_Integer osRegexIsMatch(string input, string pattern);
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
index f989cc6..0dd5a57 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
@@ -237,6 +237,58 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int ATTACH_HUD_BOTTOM = 37;
         public const int ATTACH_HUD_BOTTOM_RIGHT = 38;
 
+        #region osMessageAttachments constants
+
+        /// <summary>
+        /// Instructs osMessageAttachements to send the message to attachments
+        ///     on every point.
+        /// </summary>
+        /// <remarks>
+        /// One might expect this to be named OS_ATTACH_ALL, but then one might
+        ///     also expect functions designed to attach or detach or get
+        ///     attachments to work with it too. Attaching a no-copy item to
+        ///     many attachments could be dangerous.
+        /// when combined with OS_ATTACH_MSG_INVERT_POINTS, will prevent the
+        ///     message from being sent.
+        /// if combined with OS_ATTACH_MSG_OBJECT_CREATOR or
+        ///     OS_ATTACH_MSG_SCRIPT_CREATOR, could result in no message being
+        ///     sent- this is expected behaviour.
+        /// </remarks>
+        public const int OS_ATTACH_MSG_ALL = -65535;
+
+        /// <summary>
+        /// Instructs osMessageAttachements to invert how the attachment points
+        ///     list should be treated (e.g. go from inclusive operation to
+        ///     exclusive operation).
+        /// </summary>
+        /// <remarks>
+        /// This might be used if you want to deliver a message to one set of
+        ///     attachments and a different message to everything else. With
+        ///     this flag, you only need to build one explicit list for both calls.
+        /// </remarks>
+        public const int OS_ATTACH_MSG_INVERT_POINTS = 1;
+
+        /// <summary>
+        /// Instructs osMessageAttachments to only send the message to
+        ///     attachments with a CreatorID that matches the host object CreatorID
+        /// </summary>
+        /// <remarks>
+        /// This would be used if distributed in an object vendor/updater server.
+        /// </remarks>
+        public const int OS_ATTACH_MSG_OBJECT_CREATOR = 2;
+
+        /// <summary>
+        /// Instructs osMessageAttachments to only send the message to
+        ///     attachments with a CreatorID that matches the sending script CreatorID
+        /// </summary>
+        /// <remarks>
+        /// This might be used if the script is distributed independently of a
+        ///     containing object.
+        /// </remarks>
+        public const int OS_ATTACH_MSG_SCRIPT_CREATOR = 4;
+
+        #endregion
+
         public const int LAND_LEVEL = 0;
         public const int LAND_RAISE = 1;
         public const int LAND_LOWER = 2;
@@ -329,6 +381,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int PRIM_OMEGA = 32;
         public const int PRIM_POS_LOCAL = 33;
         public const int PRIM_LINK_TARGET = 34;
+        public const int PRIM_SLICE = 35;
         public const int PRIM_TEXGEN_DEFAULT = 0;
         public const int PRIM_TEXGEN_PLANAR = 1;
 
@@ -560,6 +613,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int CLICK_ACTION_OPEN = 4;
         public const int CLICK_ACTION_PLAY = 5;
         public const int CLICK_ACTION_OPEN_MEDIA = 6;
+        public const int CLICK_ACTION_ZOOM = 7;
 
         // constants for the llDetectedTouch* functions
         public const int TOUCH_INVALID_FACE = -1;
@@ -687,5 +741,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int KFM_CMD_PLAY = 0;
         public const int KFM_CMD_STOP = 1;
         public const int KFM_CMD_PAUSE = 2;
+
+        /// <summary>
+        /// process name parameter as regex
+        /// </summary>
+        public const int OS_LISTEN_REGEX_NAME = 0x1;
+
+        /// <summary>
+        /// process message parameter as regex
+        /// </summary>
+        public const int OS_LISTEN_REGEX_MESSAGE = 0x2;
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs
index 94405d2..afa9ae0 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs
@@ -289,7 +289,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             m_OSSL_Functions.osAvatarStopAnimation(avatar, animation);
         }
 
-        // Avatar functions
+        #region Attachment commands
 
         public void osForceAttachToAvatar(int attachmentPoint)
         {
@@ -311,6 +311,18 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             m_OSSL_Functions.osForceDetachFromAvatar();
         }
 
+        public LSL_List osGetNumberOfAttachments(LSL_Key avatar, LSL_List attachmentPoints)
+        {
+            return m_OSSL_Functions.osGetNumberOfAttachments(avatar, attachmentPoints);
+        }
+
+        public void osMessageAttachments(LSL_Key avatar, string message, LSL_List attachmentPoints, int flags)
+        {
+            m_OSSL_Functions.osMessageAttachments(avatar, message, attachmentPoints, flags);
+        }
+
+        #endregion
+
         // Texture Draw functions
 
         public string osMovePen(string drawList, int x, int y)
@@ -865,7 +877,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         {
             m_OSSL_Functions.osSetSpeed(UUID, SpeedModifier);
         }
-        
+
+        public LSL_Float osGetHealth(string avatar)
+        {
+            return m_OSSL_Functions.osGetHealth(avatar);
+        }
+
         public void osCauseDamage(string avatar, double damage)
         {
             m_OSSL_Functions.osCauseDamage(avatar, damage);
@@ -950,5 +967,40 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         {
             return m_OSSL_Functions.osGetRezzingObject();
         }
+
+        public void osSetContentType(LSL_Key id, string type)
+        {
+            m_OSSL_Functions.osSetContentType(id,type);
+        }
+
+        public void osDropAttachment()
+        {
+            m_OSSL_Functions.osDropAttachment();
+        }
+
+        public void osForceDropAttachment()
+        {
+            m_OSSL_Functions.osForceDropAttachment();
+        }
+
+        public void osDropAttachmentAt(vector pos, rotation rot)
+        {
+            m_OSSL_Functions.osDropAttachmentAt(pos, rot);
+        }
+
+        public void osForceDropAttachmentAt(vector pos, rotation rot)
+        {
+            m_OSSL_Functions.osForceDropAttachmentAt(pos, rot);
+        }
+
+        public LSL_Integer osListenRegex(int channelID, string name, string ID, string msg, int regexBitfield)
+        {
+            return m_OSSL_Functions.osListenRegex(channelID, name, ID, msg, regexBitfield);
+        }
+
+        public LSL_Integer osRegexIsMatch(string input, string pattern)
+        {
+            return m_OSSL_Functions.osRegexIsMatch(input, pattern);
+        }
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs b/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
index 17a0d69..03be2ab 100644
--- a/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
@@ -546,6 +546,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
                     "OpenSim.Region.ScriptEngine.Shared.dll"));
             parameters.ReferencedAssemblies.Add(Path.Combine(rootPath,
                     "OpenSim.Region.ScriptEngine.Shared.Api.Runtime.dll"));
+            parameters.ReferencedAssemblies.Add(Path.Combine(rootPath,
+                    "OpenMetaverseTypes.dll"));
 
             if (lang == enumCompileType.yp)
             {
diff --git a/OpenSim/Region/ScriptEngine/Shared/Helpers.cs b/OpenSim/Region/ScriptEngine/Shared/Helpers.cs
index 9e5fb24..22804f5 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Helpers.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Helpers.cs
@@ -164,11 +164,11 @@ namespace OpenSim.Region.ScriptEngine.Shared
                 else
                 {
                     // Set the values from the touch data provided by the client
-                    touchST = new LSL_Types.Vector3(value.STCoord.X, value.STCoord.Y, value.STCoord.Z);
-                    touchUV = new LSL_Types.Vector3(value.UVCoord.X, value.UVCoord.Y, value.UVCoord.Z);
-                    touchNormal = new LSL_Types.Vector3(value.Normal.X, value.Normal.Y, value.Normal.Z);
-                    touchBinormal = new LSL_Types.Vector3(value.Binormal.X, value.Binormal.Y, value.Binormal.Z);
-                    touchPos = new LSL_Types.Vector3(value.Position.X, value.Position.Y, value.Position.Z);
+                    touchST = new LSL_Types.Vector3(value.STCoord);
+                    touchUV = new LSL_Types.Vector3(value.UVCoord);
+                    touchNormal = new LSL_Types.Vector3(value.Normal);
+                    touchBinormal = new LSL_Types.Vector3(value.Binormal);
+                    touchPos = new LSL_Types.Vector3(value.Position);
                     touchFace = value.FaceIndex;
                 }
             }
@@ -189,19 +189,13 @@ namespace OpenSim.Region.ScriptEngine.Shared
                     Country = account.UserCountry;
 
                 Owner = Key;
-                Position = new LSL_Types.Vector3(
-                        presence.AbsolutePosition.X,
-                        presence.AbsolutePosition.Y,
-                        presence.AbsolutePosition.Z);
+                Position = new LSL_Types.Vector3(presence.AbsolutePosition);
                 Rotation = new LSL_Types.Quaternion(
                         presence.Rotation.X,
                         presence.Rotation.Y,
                         presence.Rotation.Z,
                         presence.Rotation.W);
-                Velocity = new LSL_Types.Vector3(
-                        presence.Velocity.X,
-                        presence.Velocity.Y,
-                        presence.Velocity.Z);
+                Velocity = new LSL_Types.Vector3(presence.Velocity);
 
                 Type = 0x01; // Avatar
                 if (presence.PresenceType == PresenceType.Npc)
@@ -254,16 +248,12 @@ namespace OpenSim.Region.ScriptEngine.Shared
                 }
             }
 
-            Position = new LSL_Types.Vector3(part.AbsolutePosition.X,
-                                             part.AbsolutePosition.Y,
-                                             part.AbsolutePosition.Z);
+            Position = new LSL_Types.Vector3(part.AbsolutePosition);
 
             Quaternion wr = part.ParentGroup.GroupRotation;
             Rotation = new LSL_Types.Quaternion(wr.X, wr.Y, wr.Z, wr.W);
 
-            Velocity = new LSL_Types.Vector3(part.Velocity.X,
-                                             part.Velocity.Y,
-                                             part.Velocity.Z);
+            Velocity = new LSL_Types.Vector3(part.Velocity);
         }
     }
 
diff --git a/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs b/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
index 8adf4c5..c9c4753 100644
--- a/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
@@ -31,6 +31,11 @@ using System.Globalization;
 using System.Text.RegularExpressions;
 using OpenSim.Framework;
 
+using OpenMetaverse;
+using OMV_Vector3 = OpenMetaverse.Vector3;
+using OMV_Vector3d = OpenMetaverse.Vector3d;
+using OMV_Quaternion = OpenMetaverse.Quaternion;
+
 namespace OpenSim.Region.ScriptEngine.Shared
 {
     [Serializable]
@@ -54,6 +59,20 @@ namespace OpenSim.Region.ScriptEngine.Shared
                 z = (float)vector.z;
             }
 
+            public Vector3(OMV_Vector3 vector)
+            {
+                x = vector.X;
+                y = vector.Y;
+                z = vector.Z;
+            }
+
+            public Vector3(OMV_Vector3d vector)
+            {
+                x = vector.X;
+                y = vector.Y;
+                z = vector.Z;
+            }
+
             public Vector3(double X, double Y, double Z)
             {
                 x = X;
@@ -109,6 +128,26 @@ namespace OpenSim.Region.ScriptEngine.Shared
                 return new list(new object[] { vec });
             }
 
+            public static implicit operator OMV_Vector3(Vector3 vec)
+            {
+                return new OMV_Vector3((float)vec.x, (float)vec.y, (float)vec.z);
+            }
+
+            public static implicit operator Vector3(OMV_Vector3 vec)
+            {
+                return new Vector3(vec);
+            }
+
+            public static implicit operator OMV_Vector3d(Vector3 vec)
+            {
+                return new OMV_Vector3d(vec.x, vec.y, vec.z);
+            }
+
+            public static implicit operator Vector3(OMV_Vector3d vec)
+            {
+                return new Vector3(vec);
+            }
+
             public static bool operator ==(Vector3 lhs, Vector3 rhs)
             {
                 return (lhs.x == rhs.x && lhs.y == rhs.y && lhs.z == rhs.z);
@@ -322,6 +361,14 @@ namespace OpenSim.Region.ScriptEngine.Shared
                     s = 1;
             }
 
+            public Quaternion(OMV_Quaternion rot)
+            {
+                x = rot.X;
+                y = rot.Y;
+                z = rot.Z;
+                s = rot.W;
+            }
+
             #endregion
 
             #region Overriders
@@ -368,6 +415,21 @@ namespace OpenSim.Region.ScriptEngine.Shared
                 return new list(new object[] { r });
             }
 
+            public static implicit operator OMV_Quaternion(Quaternion rot)
+            {
+                // LSL quaternions can normalize to 0, normal Quaternions can't.
+                if (rot.s == 0 && rot.x == 0 && rot.y == 0 && rot.z == 0)
+                    rot.z = 1; // ZERO_ROTATION = 0,0,0,1
+                OMV_Quaternion omvrot = new OMV_Quaternion((float)rot.x, (float)rot.y, (float)rot.z, (float)rot.s);
+                omvrot.Normalize();
+                return omvrot;
+            }
+
+            public static implicit operator Quaternion(OMV_Quaternion rot)
+            {
+                return new Quaternion(rot);
+            }
+
             public static bool operator ==(Quaternion lhs, Quaternion rhs)
             {
                 // Return true if the fields match:
@@ -562,12 +624,23 @@ namespace OpenSim.Region.ScriptEngine.Shared
                 else if (m_data[itemIndex] is LSL_Types.LSLString)
                     return new LSLInteger(m_data[itemIndex].ToString());
                 else
-                    throw new InvalidCastException();
+                    throw new InvalidCastException(string.Format(
+                        "{0} expected but {1} given",
+                        typeof(LSL_Types.LSLInteger).Name,
+                        m_data[itemIndex] != null ?
+                        m_data[itemIndex].GetType().Name : "null"));
             }
 
             public LSL_Types.Vector3 GetVector3Item(int itemIndex)
             {
-              return (LSL_Types.Vector3)m_data[itemIndex];
+                if(m_data[itemIndex] is LSL_Types.Vector3)
+                    return (LSL_Types.Vector3)m_data[itemIndex];
+                else
+                    throw new InvalidCastException(string.Format(
+                        "{0} expected but {1} given",
+                        typeof(LSL_Types.Vector3).Name,
+                        m_data[itemIndex] != null ?
+                        m_data[itemIndex].GetType().Name : "null"));
             }
 
             public LSL_Types.Quaternion GetQuaternionItem(int itemIndex)
diff --git a/OpenSim/Region/CoreModules/Framework/InventoryAccess/HGUuidGatherer.cs b/OpenSim/Region/ScriptEngine/Shared/ScriptException.cs
index fcb544f..f55ba7e 100644
--- a/OpenSim/Region/CoreModules/Framework/InventoryAccess/HGUuidGatherer.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/ScriptException.cs
@@ -26,32 +26,19 @@
  */
 
 using System;
-using System.Collections.Generic;
+using System.Runtime.Serialization;
 
-using OpenSim.Framework;
-using OpenSim.Region.Framework.Scenes;
-using OpenSim.Services.Interfaces;
-using OpenMetaverse;
-
-namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
+namespace OpenSim.Region.ScriptEngine.Shared
 {
-    public class HGUuidGatherer : UuidGatherer
+    [Serializable]
+    public class ScriptException : Exception
     {
-        protected string m_assetServerURL;
-        protected HGAssetMapper m_assetMapper;
+        public ScriptException() : base() {}
+
+        public ScriptException(string message) : base(message) {}
 
-        public HGUuidGatherer(HGAssetMapper assMap, IAssetService assetCache, string assetServerURL) : base(assetCache)
-        {
-            m_assetMapper = assMap;
-            m_assetServerURL = assetServerURL;
-        }
+        public ScriptException(string message, Exception innerException) : base(message, innerException) {}
 
-        protected override AssetBase GetAsset(UUID uuid)
-        {
-            if (string.Empty == m_assetServerURL)
-                return m_assetCache.Get(uuid.ToString());
-            else
-                return m_assetMapper.FetchAsset(m_assetServerURL, uuid);
-        }
+        public ScriptException(SerializationInfo info, StreamingContext context) :base(info, context) {}
     }
-}
+}
\ No newline at end of file
diff --git a/OpenSim/Region/ScriptEngine/Shared/Tests/LSL_ApiListTests.cs b/OpenSim/Region/ScriptEngine/Shared/Tests/LSL_ApiListTests.cs
new file mode 100644
index 0000000..dd23be8
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Tests/LSL_ApiListTests.cs
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using NUnit.Framework;
+using OpenSim.Framework;
+using OpenSim.Tests.Common;
+using OpenSim.Region.ScriptEngine.Shared;
+using OpenSim.Region.Framework.Scenes;
+using Nini.Config;
+using OpenSim.Region.ScriptEngine.Shared.Api;
+using OpenSim.Region.ScriptEngine.Shared.ScriptBase;
+using OpenMetaverse;
+using OpenSim.Tests.Common.Mock;
+ 
+using LSL_Float = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLFloat;
+using LSL_Integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
+using LSL_List = OpenSim.Region.ScriptEngine.Shared.LSL_Types.list;
+using LSL_String = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+
+namespace OpenSim.Region.ScriptEngine.Shared.Tests
+{
+    [TestFixture]
+    public class LSL_ApiListTests
+    {
+        private LSL_Api m_lslApi;
+
+        [SetUp]
+        public void SetUp()
+        {
+            IConfigSource initConfigSource = new IniConfigSource();
+            IConfig config = initConfigSource.AddConfig("XEngine");
+            config.Set("Enabled", "true");
+
+            Scene scene = new SceneHelpers().SetupScene();
+            SceneObjectPart part = SceneHelpers.AddSceneObject(scene).RootPart;
+
+            XEngine.XEngine engine = new XEngine.XEngine();
+            engine.Initialise(initConfigSource);
+            engine.AddRegion(scene);
+
+            m_lslApi = new LSL_Api();
+            m_lslApi.Initialize(engine, part, null);
+        }
+ 
+        [Test]
+        public void TestllListFindList()
+        {
+            TestHelpers.InMethod();
+
+            LSL_List src = new LSL_List(new LSL_Integer(1), new LSL_Integer(2), new LSL_Integer(3));
+
+            {
+                // Test for a single item that should be found
+                int result = m_lslApi.llListFindList(src, new LSL_List(new LSL_Integer(4)));
+                Assert.That(result, Is.EqualTo(-1));
+            }
+
+            {
+                // Test for a single item that should be found
+                int result = m_lslApi.llListFindList(src, new LSL_List(new LSL_Integer(2)));
+                Assert.That(result, Is.EqualTo(1));
+            }
+
+            {
+                // Test for a constant that should be found
+                int result = m_lslApi.llListFindList(src, new LSL_List(ScriptBaseClass.AGENT));
+                Assert.That(result, Is.EqualTo(0));
+            }
+
+            {
+                // Test for a list that should be found
+                int result = m_lslApi.llListFindList(src, new LSL_List(new LSL_Integer(2), new LSL_Integer(3)));
+                Assert.That(result, Is.EqualTo(1));
+            }
+
+            {
+                // Test for a single item not in the list
+                int result = m_lslApi.llListFindList(src, new LSL_List(new LSL_Integer(4)));
+                Assert.That(result, Is.EqualTo(-1));
+            }
+
+            {
+                // Test for something that should not be cast
+                int result = m_lslApi.llListFindList(src, new LSL_List(new LSL_String("4")));
+                Assert.That(result, Is.EqualTo(-1));
+            }
+
+            {
+                // Test for a list not in the list
+                int result
+                    = m_lslApi.llListFindList(
+                        src, new LSL_List(new LSL_Integer(2), new LSL_Integer(3), new LSL_Integer(4)));
+                Assert.That(result, Is.EqualTo(-1));
+            }
+
+            {
+                LSL_List srcWithConstants
+                    = new LSL_List(new LSL_Integer(3), ScriptBaseClass.AGENT, ScriptBaseClass.OS_NPC_LAND_AT_TARGET);
+
+                // Test for constants that appears in the source list that should be found
+                int result
+                    = m_lslApi.llListFindList(srcWithConstants, new LSL_List(new LSL_Integer(1), new LSL_Integer(2)));
+
+                Assert.That(result, Is.EqualTo(1));
+            }
+         }
+     }
+ }
\ No newline at end of file
diff --git a/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiAppearanceTest.cs b/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiAppearanceTest.cs
index c8718d9..c401794 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiAppearanceTest.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiAppearanceTest.cs
@@ -75,76 +75,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Tests
             m_engine.AddRegion(m_scene);
         }
 
-        /// <summary>
-        /// Test creation of an NPC where the appearance data comes from a notecard
-        /// </summary>
-        [Test]
-        public void TestOsNpcCreateUsingAppearanceFromNotecard()
-        {
-            TestHelpers.InMethod();
-//            log4net.Config.XmlConfigurator.Configure();
-
-            // Store an avatar with a different height from default in a notecard.
-            UUID userId = TestHelpers.ParseTail(0x1);
-            float newHeight = 1.9f;
-
-            ScenePresence sp = SceneHelpers.AddScenePresence(m_scene, userId);
-            sp.Appearance.AvatarHeight = newHeight;
-            SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, 0x10);
-            SceneObjectPart part = so.RootPart;
-            m_scene.AddSceneObject(so);
-
-            OSSL_Api osslApi = new OSSL_Api();
-            osslApi.Initialize(m_engine, part, null);
-
-            string notecardName = "appearanceNc";
-            osslApi.osOwnerSaveAppearance(notecardName);
-
-            // Try creating a bot using the appearance in the notecard.
-            string npcRaw = osslApi.osNpcCreate("Jane", "Doe", new LSL_Types.Vector3(128, 128, 128), notecardName);
-            Assert.That(npcRaw, Is.Not.Null);
-
-            UUID npcId = new UUID(npcRaw);
-            ScenePresence npc = m_scene.GetScenePresence(npcId);
-            Assert.That(npc, Is.Not.Null);
-            Assert.That(npc.Appearance.AvatarHeight, Is.EqualTo(newHeight));
-        }
-
-        /// <summary>
-        /// Test creation of an NPC where the appearance data comes from an avatar already in the region.
-        /// </summary>
-        [Test]
-        public void TestOsNpcCreateUsingAppearanceFromAvatar()
-        {
-            TestHelpers.InMethod();
-//            TestHelpers.EnableLogging();
-
-            // Store an avatar with a different height from default in a notecard.
-            UUID userId = TestHelpers.ParseTail(0x1);
-            float newHeight = 1.9f;
-
-            ScenePresence sp = SceneHelpers.AddScenePresence(m_scene, userId);
-            sp.Appearance.AvatarHeight = newHeight;
-            SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, 0x10);
-            SceneObjectPart part = so.RootPart;
-            m_scene.AddSceneObject(so);
-
-            OSSL_Api osslApi = new OSSL_Api();
-            osslApi.Initialize(m_engine, part, null);
-
-            string notecardName = "appearanceNc";
-            osslApi.osOwnerSaveAppearance(notecardName);
-
-            // Try creating a bot using the existing avatar's appearance
-            string npcRaw = osslApi.osNpcCreate("Jane", "Doe", new LSL_Types.Vector3(128, 128, 128), sp.UUID.ToString());
-            Assert.That(npcRaw, Is.Not.Null);
-
-            UUID npcId = new UUID(npcRaw);
-            ScenePresence npc = m_scene.GetScenePresence(npcId);
-            Assert.That(npc, Is.Not.Null);
-            Assert.That(npc.Appearance.AvatarHeight, Is.EqualTo(newHeight));
-        }
-
         [Test]
         public void TestOsOwnerSaveAppearance()
         {
diff --git a/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiNpcTests.cs b/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiNpcTests.cs
index 25679a6..b49bcc2 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiNpcTests.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiNpcTests.cs
@@ -36,6 +36,7 @@ using OpenMetaverse;
 using OpenMetaverse.Assets;
 using OpenMetaverse.StructuredData;
 using OpenSim.Framework;
+using OpenSim.Region.CoreModules.Avatar.Attachments;
 using OpenSim.Region.CoreModules.Avatar.AvatarFactory;
 using OpenSim.Region.OptionalModules.World.NPC;
 using OpenSim.Region.Framework.Scenes;
@@ -71,7 +72,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Tests
             config.Set("Enabled", "true");
 
             m_scene = new SceneHelpers().SetupScene();
-            SceneHelpers.SetupSceneModules(m_scene, initConfigSource, new AvatarFactoryModule(), new NPCModule());
+            SceneHelpers.SetupSceneModules(
+                m_scene, initConfigSource, new AvatarFactoryModule(), new AttachmentsModule(), new NPCModule());
 
             m_engine = new XEngine.XEngine();
             m_engine.Initialise(initConfigSource);
@@ -79,13 +81,191 @@ namespace OpenSim.Region.ScriptEngine.Shared.Tests
         }
 
         /// <summary>
+        /// Test creation of an NPC where the appearance data comes from a notecard
+        /// </summary>
+        [Test]
+        public void TestOsNpcCreateUsingAppearanceFromNotecard()
+        {
+            TestHelpers.InMethod();
+
+            // Store an avatar with a different height from default in a notecard.
+            UUID userId = TestHelpers.ParseTail(0x1);
+            float newHeight = 1.9f;
+
+            ScenePresence sp = SceneHelpers.AddScenePresence(m_scene, userId);
+            sp.Appearance.AvatarHeight = newHeight;
+            SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, 0x10);
+            SceneObjectPart part = so.RootPart;
+            m_scene.AddSceneObject(so);
+
+            OSSL_Api osslApi = new OSSL_Api();
+            osslApi.Initialize(m_engine, part, null);
+
+            string notecardName = "appearanceNc";
+            osslApi.osOwnerSaveAppearance(notecardName);
+
+            // Try creating a bot using the appearance in the notecard.
+            string npcRaw = osslApi.osNpcCreate("Jane", "Doe", new LSL_Types.Vector3(128, 128, 128), notecardName);
+            Assert.That(npcRaw, Is.Not.Null);
+
+            UUID npcId = new UUID(npcRaw);
+            ScenePresence npc = m_scene.GetScenePresence(npcId);
+            Assert.That(npc, Is.Not.Null);
+            Assert.That(npc.Appearance.AvatarHeight, Is.EqualTo(newHeight));
+        }
+
+        [Test]
+        public void TestOsNpcCreateNotExistingNotecard()
+        {
+            TestHelpers.InMethod();
+
+            UUID userId = TestHelpers.ParseTail(0x1);
+
+            SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, 0x10);
+            m_scene.AddSceneObject(so);
+
+            OSSL_Api osslApi = new OSSL_Api();
+            osslApi.Initialize(m_engine, so.RootPart, null);
+
+            string npcRaw;
+            bool gotExpectedException = false;
+            try
+            {
+                npcRaw
+                    = osslApi.osNpcCreate("Jane", "Doe", new LSL_Types.Vector3(128, 128, 128), "not existing notecard name");
+            }
+            catch (ScriptException)
+            {
+                gotExpectedException = true;
+            }
+
+            Assert.That(gotExpectedException, Is.True);
+        }
+
+        /// <summary>
+        /// Test creation of an NPC where the appearance data comes from an avatar already in the region.
+        /// </summary>
+        [Test]
+        public void TestOsNpcCreateUsingAppearanceFromAvatar()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            // Store an avatar with a different height from default in a notecard.
+            UUID userId = TestHelpers.ParseTail(0x1);
+            float newHeight = 1.9f;
+
+            ScenePresence sp = SceneHelpers.AddScenePresence(m_scene, userId);
+            sp.Appearance.AvatarHeight = newHeight;
+            SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, 0x10);
+            SceneObjectPart part = so.RootPart;
+            m_scene.AddSceneObject(so);
+
+            OSSL_Api osslApi = new OSSL_Api();
+            osslApi.Initialize(m_engine, part, null);
+
+            string notecardName = "appearanceNc";
+            osslApi.osOwnerSaveAppearance(notecardName);
+
+            // Try creating a bot using the existing avatar's appearance
+            string npcRaw = osslApi.osNpcCreate("Jane", "Doe", new LSL_Types.Vector3(128, 128, 128), sp.UUID.ToString());
+            Assert.That(npcRaw, Is.Not.Null);
+
+            UUID npcId = new UUID(npcRaw);
+            ScenePresence npc = m_scene.GetScenePresence(npcId);
+            Assert.That(npc, Is.Not.Null);
+            Assert.That(npc.Appearance.AvatarHeight, Is.EqualTo(newHeight));
+        }
+
+        [Test]
+        public void TestOsNpcLoadAppearance()
+        {
+            TestHelpers.InMethod();
+
+            // Store an avatar with a different height from default in a notecard.
+            UUID userId = TestHelpers.ParseTail(0x1);
+            float firstHeight = 1.9f;
+            float secondHeight = 2.1f;
+            string firstAppearanceNcName = "appearanceNc1";
+            string secondAppearanceNcName = "appearanceNc2";
+
+            ScenePresence sp = SceneHelpers.AddScenePresence(m_scene, userId);
+            sp.Appearance.AvatarHeight = firstHeight;
+            SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, 0x10);
+            SceneObjectPart part = so.RootPart;
+            m_scene.AddSceneObject(so);
+
+            OSSL_Api osslApi = new OSSL_Api();
+            osslApi.Initialize(m_engine, part, null);
+
+            osslApi.osOwnerSaveAppearance(firstAppearanceNcName);
+
+            string npcRaw
+                = osslApi.osNpcCreate("Jane", "Doe", new LSL_Types.Vector3(128, 128, 128), firstAppearanceNcName);
+
+            // Create a second appearance notecard with a different height
+            sp.Appearance.AvatarHeight = secondHeight;
+            osslApi.osOwnerSaveAppearance(secondAppearanceNcName);
+
+            osslApi.osNpcLoadAppearance(npcRaw, secondAppearanceNcName);
+
+            UUID npcId = new UUID(npcRaw);
+            ScenePresence npc = m_scene.GetScenePresence(npcId);
+            Assert.That(npc, Is.Not.Null);
+            Assert.That(npc.Appearance.AvatarHeight, Is.EqualTo(secondHeight));
+        }
+
+        [Test]
+        public void TestOsNpcLoadAppearanceNotExistingNotecard()
+        {
+            TestHelpers.InMethod();
+
+            // Store an avatar with a different height from default in a notecard.
+            UUID userId = TestHelpers.ParseTail(0x1);
+            float firstHeight = 1.9f;
+            float secondHeight = 2.1f;
+            string firstAppearanceNcName = "appearanceNc1";
+            string secondAppearanceNcName = "appearanceNc2";
+
+            ScenePresence sp = SceneHelpers.AddScenePresence(m_scene, userId);
+            sp.Appearance.AvatarHeight = firstHeight;
+            SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, 0x10);
+            SceneObjectPart part = so.RootPart;
+            m_scene.AddSceneObject(so);
+
+            OSSL_Api osslApi = new OSSL_Api();
+            osslApi.Initialize(m_engine, part, null);
+
+            osslApi.osOwnerSaveAppearance(firstAppearanceNcName);
+
+            string npcRaw
+                = osslApi.osNpcCreate("Jane", "Doe", new LSL_Types.Vector3(128, 128, 128), firstAppearanceNcName);
+
+            bool gotExpectedException = false;
+            try
+            {
+                osslApi.osNpcLoadAppearance(npcRaw, secondAppearanceNcName);
+            }
+            catch (ScriptException)
+            {
+                gotExpectedException = true;
+            }
+
+            Assert.That(gotExpectedException, Is.True);
+
+            UUID npcId = new UUID(npcRaw);
+            ScenePresence npc = m_scene.GetScenePresence(npcId);
+            Assert.That(npc, Is.Not.Null);
+            Assert.That(npc.Appearance.AvatarHeight, Is.EqualTo(firstHeight));
+        }
+
+        /// <summary>
         /// Test removal of an owned NPC.
         /// </summary>
         [Test]
         public void TestOsNpcRemoveOwned()
         {
             TestHelpers.InMethod();
-//            log4net.Config.XmlConfigurator.Configure();
 
             // Store an avatar with a different height from default in a notecard.
             UUID userId = TestHelpers.ParseTail(0x1);
diff --git a/OpenSim/Region/ScriptEngine/XEngine/EventManager.cs b/OpenSim/Region/ScriptEngine/XEngine/EventManager.cs
index 5c4174e..9405075 100644
--- a/OpenSim/Region/ScriptEngine/XEngine/EventManager.cs
+++ b/OpenSim/Region/ScriptEngine/XEngine/EventManager.cs
@@ -96,9 +96,12 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             if (part == null)
                 return;
 
+            if ((part.ScriptEvents & scriptEvents.money) == 0)
+                part = part.ParentGroup.RootPart;
+
             m_log.Debug("Paid: " + objectID + " from " + agentID + ", amount " + amount);
 
-            part = part.ParentGroup.RootPart;
+//            part = part.ParentGroup.RootPart;
             money(part.LocalId, agentID, amount);
         }
 
@@ -152,9 +155,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             det[0] = new DetectParams();
             det[0].Key = remoteClient.AgentId;
             det[0].Populate(myScriptEngine.World);
-            det[0].OffsetPos = new LSL_Types.Vector3(offsetPos.X,
-                                                     offsetPos.Y,
-                                                     offsetPos.Z);
+            det[0].OffsetPos = offsetPos;
 
             if (originalID == 0)
             {
@@ -298,9 +299,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             foreach (DetectedObject detobj in col.Colliders)
             {
                 DetectParams d = new DetectParams();
-                d.Position = new LSL_Types.Vector3(detobj.posVector.X,
-                    detobj.posVector.Y,
-                    detobj.posVector.Z);
+                d.Position = detobj.posVector;
                 d.Populate(myScriptEngine.World);
                 det.Add(d);
                 myScriptEngine.PostObjectEvent(localID, new EventParams(
@@ -318,9 +317,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             foreach (DetectedObject detobj in col.Colliders)
             {
                 DetectParams d = new DetectParams();
-                d.Position = new LSL_Types.Vector3(detobj.posVector.X,
-                    detobj.posVector.Y,
-                    detobj.posVector.Z);
+                d.Position = detobj.posVector;
                 d.Populate(myScriptEngine.World);
                 det.Add(d);
                 myScriptEngine.PostObjectEvent(localID, new EventParams(
@@ -337,9 +334,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             foreach (DetectedObject detobj in col.Colliders)
             {
                 DetectParams d = new DetectParams();
-                d.Position = new LSL_Types.Vector3(detobj.posVector.X,
-                    detobj.posVector.Y,
-                    detobj.posVector.Z);
+                d.Position = detobj.posVector;
                 d.Populate(myScriptEngine.World);
                 det.Add(d);
                 myScriptEngine.PostObjectEvent(localID, new EventParams(
@@ -381,8 +376,8 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             myScriptEngine.PostObjectEvent(localID, new EventParams(
                     "at_target", new object[] {
                     new LSL_Types.LSLInteger(handle),
-                    new LSL_Types.Vector3(targetpos.X,targetpos.Y,targetpos.Z),
-                    new LSL_Types.Vector3(atpos.X,atpos.Y,atpos.Z) },
+                    new LSL_Types.Vector3(targetpos),
+                    new LSL_Types.Vector3(atpos) },
                     new DetectParams[0]));
         }
 
@@ -399,8 +394,8 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             myScriptEngine.PostObjectEvent(localID, new EventParams(
                     "at_rot_target", new object[] {
                     new LSL_Types.LSLInteger(handle),
-                    new LSL_Types.Quaternion(targetrot.X,targetrot.Y,targetrot.Z,targetrot.W),
-                    new LSL_Types.Quaternion(atrot.X,atrot.Y,atrot.Z,atrot.W) },
+                    new LSL_Types.Quaternion(targetrot),
+                    new LSL_Types.Quaternion(atrot) },
                     new DetectParams[0]));
         }
 
diff --git a/OpenSim/Region/ScriptEngine/XEngine/Tests/XEngineTest.cs b/OpenSim/Region/ScriptEngine/XEngine/Tests/XEngineTest.cs
index f247a0b..f331658 100644
--- a/OpenSim/Region/ScriptEngine/XEngine/Tests/XEngineTest.cs
+++ b/OpenSim/Region/ScriptEngine/XEngine/Tests/XEngineTest.cs
@@ -90,7 +90,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine.Tests
 //            log4net.Config.XmlConfigurator.Configure();
 
             UUID userId = TestHelpers.ParseTail(0x1);
-//            UUID objectId = TestHelpers.ParseTail(0x2);
+//            UUID objectId = TestHelpers.ParseTail(0x100);
 //            UUID itemId = TestHelpers.ParseTail(0x3);
             string itemName = "TestStartScript() Item";
 
@@ -105,12 +105,18 @@ namespace OpenSim.Region.ScriptEngine.XEngine.Tests
 
             m_scene.EventManager.OnChatFromWorld += OnChatFromWorld;
 
-            m_scene.RezNewScript(userId, itemTemplate);
+            SceneObjectPart partWhereRezzed = m_scene.RezNewScript(userId, itemTemplate);
 
             m_chatEvent.WaitOne(60000);
 
             Assert.That(m_osChatMessageReceived, Is.Not.Null, "No chat message received in TestStartScript()");
             Assert.That(m_osChatMessageReceived.Message, Is.EqualTo("Script running"));
+
+            bool running;
+            TaskInventoryItem scriptItem = partWhereRezzed.Inventory.GetInventoryItem(itemName);
+            Assert.That(
+                SceneObjectPartInventory.TryGetScriptInstanceRunning(m_scene, scriptItem, out running), Is.True);
+            Assert.That(running, Is.True);
         }
 
         private void OnChatFromWorld(object sender, OSChatMessage oscm)
diff --git a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
index f6cb7df..9f05666 100644
--- a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
+++ b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
@@ -656,7 +656,19 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                 if (m_Assemblies.ContainsKey(instance.AssetID))
                 {
                     string assembly = m_Assemblies[instance.AssetID];
-                    instance.SaveState(assembly);
+
+                    try
+                    {
+                        instance.SaveState(assembly);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.Error(
+                            string.Format(
+                                "[XEngine]: Failed final state save for script {0}.{1}, item UUID {2}, prim UUID {3} in {4}.  Exception ",
+                                instance.PrimName, instance.ScriptName, instance.ItemID, instance.ObjectID, World.Name)
+                            , e);
+                    }
                 }
 
                 // Clear the event queue and abort the instance thread
@@ -778,7 +790,18 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                     assembly = m_Assemblies[i.AssetID];
                 
 
-                i.SaveState(assembly);
+                try
+                {
+                    i.SaveState(assembly);
+                }
+                catch (Exception e)
+                {
+                    m_log.Error(
+                        string.Format(
+                            "[XEngine]: Failed to save state of script {0}.{1}, item UUID {2}, prim UUID {3} in {4}.  Exception ",
+                            i.PrimName, i.ScriptName, i.ItemID, i.ObjectID, World.Name)
+                        , e);
+                }
             }
 
             instances.Clear();
@@ -971,6 +994,8 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                 // This delay exists to stop mono problems where script compilation and startup would stop the sim
                 // working properly for the session.
                 System.Threading.Thread.Sleep(m_StartDelay);
+
+                m_log.InfoFormat("[XEngine]: Performing initial script startup on {0}", m_Scene.Name);
             }
 
             object[] o;
@@ -986,13 +1011,13 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                     if (m_InitialStartup)
                         if (scriptsStarted % 50 == 0)
                             m_log.InfoFormat(
-                                "[XEngine]: Started {0} scripts in {1}", scriptsStarted, m_Scene.RegionInfo.RegionName);
+                                "[XEngine]: Started {0} scripts in {1}", scriptsStarted, m_Scene.Name);
                 }
             }
 
             if (m_InitialStartup)
                 m_log.InfoFormat(
-                    "[XEngine]: Completed starting {0} scripts on {1}", scriptsStarted, m_Scene.RegionInfo.RegionName);
+                    "[XEngine]: Completed starting {0} scripts on {1}", scriptsStarted, m_Scene.Name);
 
             // NOTE: Despite having a lockless queue, this lock is required
             // to make sure there is never no compile thread while there
@@ -1053,10 +1078,12 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                 return false;
             }
 
-            UUID assetID = item.AssetID;
+            m_log.DebugFormat(
+                "[XEngine] Loading script {0}.{1}, item UUID {2}, prim UUID {3} @ {4}.{5}",
+                part.ParentGroup.RootPart.Name, item.Name, itemID, part.UUID,
+                part.ParentGroup.RootPart.AbsolutePosition, part.ParentGroup.Scene.RegionInfo.RegionName);
 
-            //m_log.DebugFormat("[XEngine] Compiling script {0} ({1} on object {2})",
-            //        item.Name, itemID.ToString(), part.ParentGroup.RootPart.Name);
+            UUID assetID = item.AssetID;
 
             ScenePresence presence = m_Scene.GetScenePresence(item.OwnerID);
 
@@ -1235,10 +1262,10 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                                               item.Name, startParam, postOnRez,
                                               stateSource, m_MaxScriptQueue);
 
-                m_log.DebugFormat(
-                        "[XEngine] Loaded script {0}.{1}, script UUID {2}, prim UUID {3} @ {4}.{5}",
-                        part.ParentGroup.RootPart.Name, item.Name, assetID, part.UUID, 
-                        part.ParentGroup.RootPart.AbsolutePosition, part.ParentGroup.Scene.RegionInfo.RegionName);
+//                m_log.DebugFormat(
+//                        "[XEngine] Loaded script {0}.{1}, script UUID {2}, prim UUID {3} @ {4}.{5}",
+//                        part.ParentGroup.RootPart.Name, item.Name, assetID, part.UUID, 
+//                        part.ParentGroup.RootPart.AbsolutePosition, part.ParentGroup.Scene.RegionInfo.RegionName);
 
                 if (presence != null)
                 {
@@ -1554,9 +1581,9 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                 else if (p[i] is string)
                     lsl_p[i] = new LSL_Types.LSLString((string)p[i]);
                 else if (p[i] is Vector3)
-                    lsl_p[i] = new LSL_Types.Vector3(((Vector3)p[i]).X, ((Vector3)p[i]).Y, ((Vector3)p[i]).Z);
+                    lsl_p[i] = new LSL_Types.Vector3((Vector3)p[i]);
                 else if (p[i] is Quaternion)
-                    lsl_p[i] = new LSL_Types.Quaternion(((Quaternion)p[i]).X, ((Quaternion)p[i]).Y, ((Quaternion)p[i]).Z, ((Quaternion)p[i]).W);
+                    lsl_p[i] = new LSL_Types.Quaternion((Quaternion)p[i]);
                 else if (p[i] is float)
                     lsl_p[i] = new LSL_Types.LSLFloat((float)p[i]);
                 else
@@ -1580,9 +1607,9 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                 else if (p[i] is string)
                     lsl_p[i] = new LSL_Types.LSLString((string)p[i]);
                 else if (p[i] is Vector3)
-                    lsl_p[i] = new LSL_Types.Vector3(((Vector3)p[i]).X, ((Vector3)p[i]).Y, ((Vector3)p[i]).Z);
+                    lsl_p[i] = new LSL_Types.Vector3((Vector3)p[i]);
                 else if (p[i] is Quaternion)
-                    lsl_p[i] = new LSL_Types.Quaternion(((Quaternion)p[i]).X, ((Quaternion)p[i]).Y, ((Quaternion)p[i]).Z, ((Quaternion)p[i]).W);
+                    lsl_p[i] = new LSL_Types.Quaternion((Quaternion)p[i]);
                 else if (p[i] is float)
                     lsl_p[i] = new LSL_Types.LSLFloat((float)p[i]);
                 else
diff --git a/OpenSim/Region/UserStatistics/WebStatsModule.cs b/OpenSim/Region/UserStatistics/WebStatsModule.cs
index c11ea02..625eba4 100644
--- a/OpenSim/Region/UserStatistics/WebStatsModule.cs
+++ b/OpenSim/Region/UserStatistics/WebStatsModule.cs
@@ -61,7 +61,7 @@ namespace OpenSim.Region.UserStatistics
         /// <summary>
         /// User statistics sessions keyed by agent ID
         /// </summary>
-        private Dictionary<UUID, UserSessionID> m_sessions = new Dictionary<UUID, UserSessionID>();
+        private Dictionary<UUID, UserSession> m_sessions = new Dictionary<UUID, UserSession>();
 
         private List<Scene> m_scenes = new List<Scene>();
         private Dictionary<string, IStatsController> reports = new Dictionary<string, IStatsController>();
@@ -319,14 +319,18 @@ namespace OpenSim.Region.UserStatistics
 
         private void OnMakeRootAgent(ScenePresence agent)
         {
+//            m_log.DebugFormat(
+//                "[WEB STATS MODULE]: Looking for session {0} for {1} in {2}",
+//                agent.ControllingClient.SessionId, agent.Name, agent.Scene.Name);
+
             lock (m_sessions)
             {
-                UserSessionID uid;
+                UserSession uid;
 
                 if (!m_sessions.ContainsKey(agent.UUID))
                 {
                     UserSessionData usd = UserSessionUtil.newUserSessionData();
-                    uid = new UserSessionID();
+                    uid = new UserSession();
                     uid.name_f = agent.Firstname;
                     uid.name_l = agent.Lastname;
                     uid.session_data = usd;
@@ -411,9 +415,9 @@ namespace OpenSim.Region.UserStatistics
             return String.Empty;
         }
 
-        private UserSessionID ParseViewerStats(string request, UUID agentID)
+        private UserSession ParseViewerStats(string request, UUID agentID)
         {
-            UserSessionID uid = new UserSessionID();
+            UserSession uid = new UserSession();
             UserSessionData usd;
             OSD message = OSDParser.DeserializeLLSDXml(request);
             OSDMap mmap;
@@ -425,22 +429,25 @@ namespace OpenSim.Region.UserStatistics
                     if (!m_sessions.ContainsKey(agentID))
                     {
                         m_log.WarnFormat("[WEB STATS MODULE]: no session for stat disclosure for agent {0}", agentID);
-                        return new UserSessionID();
+                        return new UserSession();
                     }
+
                     uid = m_sessions[agentID];
+
+//                    m_log.DebugFormat("[WEB STATS MODULE]: Got session {0} for {1}", uid.session_id, agentID);
                 }
                 else
                 {
                     // parse through the beginning to locate the session
                     if (message.Type != OSDType.Map)
-                        return new UserSessionID();
+                        return new UserSession();
 
                     mmap = (OSDMap)message;
                     {
                         UUID sessionID = mmap["session_id"].AsUUID();
 
                         if (sessionID == UUID.Zero)
-                            return new UserSessionID();
+                            return new UserSession();
 
 
                         // search through each session looking for the owner
@@ -459,7 +466,7 @@ namespace OpenSim.Region.UserStatistics
                         // can't find a session
                         if (agentID == UUID.Zero)
                         {
-                            return new UserSessionID();
+                            return new UserSession();
                         }
                     }
                 }
@@ -468,12 +475,12 @@ namespace OpenSim.Region.UserStatistics
             usd = uid.session_data;
 
             if (message.Type != OSDType.Map)
-                return new UserSessionID();
+                return new UserSession();
 
             mmap = (OSDMap)message;
             {
                 if (mmap["agent"].Type != OSDType.Map)
-                    return new UserSessionID();
+                    return new UserSession();
                 OSDMap agent_map = (OSDMap)mmap["agent"];
                 usd.agent_id = agentID;
                 usd.name_f = uid.name_f;
@@ -493,17 +500,18 @@ namespace OpenSim.Region.UserStatistics
                                                  (float)agent_map["fps"].AsReal());
 
                 if (mmap["downloads"].Type != OSDType.Map)
-                    return new UserSessionID();
+                    return new UserSession();
                 OSDMap downloads_map = (OSDMap)mmap["downloads"];
                 usd.d_object_kb = (float)downloads_map["object_kbytes"].AsReal();
                 usd.d_texture_kb = (float)downloads_map["texture_kbytes"].AsReal();
                 usd.d_world_kb = (float)downloads_map["workd_kbytes"].AsReal();
 
+//                m_log.DebugFormat("[WEB STATS MODULE]: mmap[\"session_id\"] = [{0}]", mmap["session_id"].AsUUID());
 
                 usd.session_id = mmap["session_id"].AsUUID();
 
                 if (mmap["system"].Type != OSDType.Map)
-                    return new UserSessionID();
+                    return new UserSession();
                 OSDMap system_map = (OSDMap)mmap["system"];
 
                 usd.s_cpu = system_map["cpu"].AsString();
@@ -512,13 +520,13 @@ namespace OpenSim.Region.UserStatistics
                 usd.s_ram = system_map["ram"].AsInteger();
 
                 if (mmap["stats"].Type != OSDType.Map)
-                    return new UserSessionID();
+                    return new UserSession();
 
                 OSDMap stats_map = (OSDMap)mmap["stats"];
                 {
 
                     if (stats_map["failures"].Type != OSDType.Map)
-                        return new UserSessionID();
+                        return new UserSession();
                     OSDMap stats_failures = (OSDMap)stats_map["failures"];
                     usd.f_dropped = stats_failures["dropped"].AsInteger();
                     usd.f_failed_resends = stats_failures["failed_resends"].AsInteger();
@@ -527,18 +535,18 @@ namespace OpenSim.Region.UserStatistics
                     usd.f_send_packet = stats_failures["send_packet"].AsInteger();
 
                     if (stats_map["net"].Type != OSDType.Map)
-                        return new UserSessionID();
+                        return new UserSession();
                     OSDMap stats_net = (OSDMap)stats_map["net"];
                     {
                         if (stats_net["in"].Type != OSDType.Map)
-                            return new UserSessionID();
+                            return new UserSession();
 
                         OSDMap net_in = (OSDMap)stats_net["in"];
                         usd.n_in_kb = (float)net_in["kbytes"].AsReal();
                         usd.n_in_pk = net_in["packets"].AsInteger();
 
                         if (stats_net["out"].Type != OSDType.Map)
-                            return new UserSessionID();
+                            return new UserSession();
                         OSDMap net_out = (OSDMap)stats_net["out"];
 
                         usd.n_out_kb = (float)net_out["kbytes"].AsReal();
@@ -549,11 +557,18 @@ namespace OpenSim.Region.UserStatistics
 
             uid.session_data = usd;
             m_sessions[agentID] = uid;
+
+//            m_log.DebugFormat(
+//                "[WEB STATS MODULE]: Parse data for {0} {1}, session {2}", uid.name_f, uid.name_l, uid.session_id);
+
             return uid;
         }
 
-        private void UpdateUserStats(UserSessionID uid, SqliteConnection db)
+        private void UpdateUserStats(UserSession uid, SqliteConnection db)
         {
+//            m_log.DebugFormat(
+//                "[WEB STATS MODULE]: Updating user stats for {0} {1}, session {2}", uid.name_f, uid.name_l, uid.session_id);
+
             if (uid.session_id == UUID.Zero)
                 return;
 
@@ -740,7 +755,6 @@ VALUES
             s.min_ping = ArrayMin_f(__ping);
             s.max_ping = ArrayMax_f(__ping);
             s.mode_ping = ArrayMode_f(__ping);
-
         }
 
         #region Statistics
@@ -985,7 +999,7 @@ VALUES
     }
     #region structs
 
-    public struct UserSessionID
+    public class UserSession
     {
         public UUID session_id;
         public UUID region_id;