Merge branch 'master' into careminster

Conflicts:
	OpenSim/Data/MySQL/MySQLSimulationData.cs
	OpenSim/Data/MySQL/Resources/RegionStore.migrations
	OpenSim/Region/ClientStack/Linden/Caps/WebFetchInvDescModule.cs
	OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
	OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
	OpenSim/Region/CoreModules/World/LightShare/LightShareModule.cs
	OpenSim/Region/Framework/Scenes/Scene.cs
	OpenSim/Region/Framework/Scenes/ScenePresence.cs
	OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCapabilityTests.cs
	OpenSim/Region/OptionalModules/World/NPC/NPCModule.cs
	OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs

58 files changed, 2616 insertions, 653 deletions

diff --git a/OpenSim/Region/Application/ConfigurationLoader.cs b/OpenSim/Region/Application/ConfigurationLoader.cs
index bc7ecb7..010ae5a 100644
--- a/OpenSim/Region/Application/ConfigurationLoader.cs
+++ b/OpenSim/Region/Application/ConfigurationLoader.cs
@@ -203,10 +203,10 @@ namespace OpenSim
                 m_config.Source.Merge(envConfigSource);
             }
 
-            ReadConfigSettings();
-            
             m_config.Source.ExpandKeyValues();
 
+            ReadConfigSettings();
+
             return m_config;
         }
 
diff --git a/OpenSim/Region/Application/OpenSim.cs b/OpenSim/Region/Application/OpenSim.cs
index a18a6fe..20f6af5 100644
--- a/OpenSim/Region/Application/OpenSim.cs
+++ b/OpenSim/Region/Application/OpenSim.cs
@@ -237,27 +237,33 @@ namespace OpenSim
 
             m_console.Commands.AddCommand("General", false, "change region",
                                           "change region <region name>",
-                                          "Change current console region", ChangeSelectedRegion);
+                                          "Change current console region", 
+                                          ChangeSelectedRegion);
 
             m_console.Commands.AddCommand("Archiving", false, "save xml",
                                           "save xml",
-                                          "Save a region's data in XML format", SaveXml);
+                                          "Save a region's data in XML format", 
+                                          SaveXml);
 
             m_console.Commands.AddCommand("Archiving", false, "save xml2",
                                           "save xml2",
-                                          "Save a region's data in XML2 format", SaveXml2);
+                                          "Save a region's data in XML2 format", 
+                                          SaveXml2);
 
             m_console.Commands.AddCommand("Archiving", false, "load xml",
                                           "load xml [-newIDs [<x> <y> <z>]]",
-                                          "Load a region's data from XML format", LoadXml);
+                                          "Load a region's data from XML format",
+                                          LoadXml);
 
             m_console.Commands.AddCommand("Archiving", false, "load xml2",
                                           "load xml2",
-                                          "Load a region's data from XML2 format", LoadXml2);
+                                          "Load a region's data from XML2 format", 
+                                          LoadXml2);
 
             m_console.Commands.AddCommand("Archiving", false, "save prims xml2",
                                           "save prims xml2 [<prim name> <file name>]",
-                                          "Save named prim to XML2", SavePrimsXml2);
+                                          "Save named prim to XML2", 
+                                          SavePrimsXml2);
 
             m_console.Commands.AddCommand("Archiving", false, "load oar",
                                           "load oar [--merge] [--skip-assets] [<OAR path>]",
@@ -287,7 +293,8 @@ namespace OpenSim
 
             m_console.Commands.AddCommand("Objects", false, "edit scale",
                                           "edit scale <name> <x> <y> <z>",
-                                          "Change the scale of a named prim", HandleEditScale);
+                                          "Change the scale of a named prim", 
+                                          HandleEditScale);
 
             m_console.Commands.AddCommand("Users", false, "kick user",
                                           "kick user <first> <last> [--force] [message]",
@@ -305,31 +312,38 @@ namespace OpenSim
 
             m_console.Commands.AddCommand("Comms", false, "show connections",
                                           "show connections",
-                                          "Show connection data", HandleShow);
+                                          "Show connection data", 
+                                          HandleShow);
 
             m_console.Commands.AddCommand("Comms", false, "show circuits",
                                           "show circuits",
-                                          "Show agent circuit data", HandleShow);
+                                          "Show agent circuit data", 
+                                          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);
+                                          "Show # of objects on the pending queues of all scene viewers", 
+                                          HandleShow);
 
             m_console.Commands.AddCommand("General", false, "show modules",
                                           "show modules",
-                                          "Show module data", HandleShow);
+                                          "Show module data", 
+                                          HandleShow);
 
             m_console.Commands.AddCommand("Regions", false, "show regions",
                                           "show regions",
-                                          "Show region data", HandleShow);
+                                          "Show region data", 
+                                          HandleShow);
             
             m_console.Commands.AddCommand("Regions", false, "show ratings",
                                           "show ratings",
-                                          "Show rating data", HandleShow);
+                                          "Show rating data", 
+                                          HandleShow);
 
             m_console.Commands.AddCommand("Objects", false, "backup",
                                           "backup",
-                                          "Persist currently unsaved object changes immediately instead of waiting for the normal persistence call.", RunCommand);
+                                          "Persist currently unsaved object changes immediately instead of waiting for the normal persistence call.", 
+                                          RunCommand);
 
             m_console.Commands.AddCommand("Regions", false, "create region",
                                           "create region [\"region name\"] <region_file.ini>",
@@ -342,19 +356,23 @@ namespace OpenSim
 
             m_console.Commands.AddCommand("Regions", false, "restart",
                                           "restart",
-                                          "Restart all sims in this instance", RunCommand);
+                                          "Restart all sims in this instance", 
+                                          RunCommand);
 
             m_console.Commands.AddCommand("General", false, "command-script",
                                           "command-script <script>",
-                                          "Run a command script from file", RunCommand);
+                                          "Run a command script from file", 
+                                          RunCommand);
 
             m_console.Commands.AddCommand("Regions", false, "remove-region",
                                           "remove-region <name>",
-                                          "Remove a region from this simulator", RunCommand);
+                                          "Remove a region from this simulator", 
+                                          RunCommand);
 
             m_console.Commands.AddCommand("Regions", false, "delete-region",
                                           "delete-region <name>",
-                                          "Delete a region from disk", RunCommand);
+                                          "Delete a region from disk", 
+                                          RunCommand);
         }
 
         protected override void ShutdownSpecific()
@@ -434,7 +452,7 @@ namespace OpenSim
                     else
                         presence.ControllingClient.Kick("\nYou have been logged out by an administrator.\n");
 
-                    presence.Scene.IncomingCloseAgent(presence.UUID, force);
+                    presence.Scene.CloseAgent(presence.UUID, force);
                     break;
                 }
             }
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/Tests/EventQueueTests.cs b/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/Tests/EventQueueTests.cs
index b3b0b8a..9e24bce 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/Tests/EventQueueTests.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/Tests/EventQueueTests.cs
@@ -96,7 +96,7 @@ namespace OpenSim.Region.ClientStack.Linden.Tests
             UUID spId = TestHelpers.ParseTail(0x1);
 
             SceneHelpers.AddScenePresence(m_scene, spId);
-            m_scene.IncomingCloseAgent(spId, false);
+            m_scene.CloseAgent(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/ObjectCaps/ObjectAdd.cs b/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/ObjectAdd.cs
index 92805e2..94f8bc1 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/ObjectAdd.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/ObjectAdd.cs
@@ -155,6 +155,7 @@ namespace OpenSim.Region.ClientStack.Linden
             Quaternion rotation = Quaternion.Identity;
             Vector3 scale = Vector3.Zero;
             int state = 0;
+            int lastattach = 0;
 
             if (r.Type != OSDType.Map) // not a proper req
                 return responsedata;
@@ -224,6 +225,7 @@ namespace OpenSim.Region.ClientStack.Linden
 
                 ray_target_id = ObjMap["RayTargetId"].AsUUID();
                 state = ObjMap["State"].AsInteger();
+                lastattach = ObjMap["LastAttachPoint"].AsInteger();
                 try
                 {
                     ray_end = ((OSDArray)ObjMap["RayEnd"]).AsVector3();
@@ -290,6 +292,7 @@ namespace OpenSim.Region.ClientStack.Linden
 
                 //session_id = rm["session_id"].AsUUID();
                 state = rm["state"].AsInteger();
+                lastattach = rm["last_attach_point"].AsInteger();
                 try
                 {
                     ray_end = ((OSDArray)rm["ray_end"]).AsVector3();
@@ -331,6 +334,7 @@ namespace OpenSim.Region.ClientStack.Linden
             pbs.ProfileEnd = (ushort)profile_end;
             pbs.Scale = scale;
             pbs.State = (byte)state;
+            pbs.LastAttachPoint = (byte)lastattach;
 
             SceneObjectGroup obj = null; ;
 
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/UploadObjectAssetModule.cs b/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/UploadObjectAssetModule.cs
index 55a503e..769fe28 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/UploadObjectAssetModule.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/UploadObjectAssetModule.cs
@@ -277,6 +277,7 @@ namespace OpenSim.Region.ClientStack.Linden
                 pbs.ProfileEnd = (ushort) obj.ProfileEnd;
                 pbs.Scale = obj.Scale;
                 pbs.State = (byte) 0;
+                pbs.LastAttachPoint = (byte) 0;
                 SceneObjectPart prim = new SceneObjectPart();
                 prim.UUID = UUID.Random();
                 prim.CreatorID = AgentId;
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/WebFetchInvDescModule.cs b/OpenSim/Region/ClientStack/Linden/Caps/WebFetchInvDescModule.cs
index f816ad3..6fc35cd 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/WebFetchInvDescModule.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/WebFetchInvDescModule.cs
@@ -116,7 +116,7 @@ namespace OpenSim.Region.ClientStack.Linden
             m_scene.EventManager.OnRegisterCaps -= RegisterCaps;
 
             foreach (Thread t in m_workerThreads)
-                Watchdog.AbortThread(t.ManagedThreadId); 
+                Watchdog.AbortThread(t.ManagedThreadId);
 
             m_scene = null;
         }
@@ -298,36 +298,49 @@ namespace OpenSim.Region.ClientStack.Linden
                         requestinfo.request["body"].ToString(), String.Empty, String.Empty, null, null);
 
                 lock (responses)
-                    responses[requestID] = response; 
+                    responses[requestID] = response;
             }
         }
 
         private void RegisterCaps(UUID agentID, Caps caps)
         {
-            if (m_fetchInventoryDescendents2Url == "")
+            RegisterFetchDescendentsCap(agentID, caps, "FetchInventoryDescendents2", m_fetchInventoryDescendents2Url);
+        }
+
+        private void RegisterFetchDescendentsCap(UUID agentID, Caps caps, string capName, string url)
+        {
+            string capUrl;
+
+            // disable the cap clause
+            if (url == "")
+            {
                 return;
+            }
+            // handled by the simulator
+            else if (url == "localhost")
+            {
+                capUrl = "/CAPS/" + UUID.Random() + "/";
 
-            // Register this as a poll service          
-            PollServiceInventoryEventArgs args 
-                = new PollServiceInventoryEventArgs(m_scene, "/CAPS/" + UUID.Random() + "/", agentID);            
-            args.Type = PollServiceEventArgs.EventType.Inventory;
+                // Register this as a poll service
+                PollServiceInventoryEventArgs args = new PollServiceInventoryEventArgs(m_scene, capUrl, agentID);
+                args.Type = PollServiceEventArgs.EventType.Inventory;
 
-            caps.RegisterPollHandler("FetchInventoryDescendents2", args);
+                caps.RegisterPollHandler(capName, args);
+            }
+            // external handler
+            else
+            {
+                capUrl = url;
+                IExternalCapsModule handler = m_scene.RequestModuleInterface<IExternalCapsModule>();
+                if (handler != null)
+                    handler.RegisterExternalUserCapsHandler(agentID,caps,capName,capUrl);
+                else
+                    caps.RegisterHandler(capName, capUrl);
+            }
 
-//            MainServer.Instance.AddPollServiceHTTPHandler(capUrl, args);
-//
-//            string hostName = m_scene.RegionInfo.ExternalHostName;
-//            uint port = (MainServer.Instance == null) ? 0 : MainServer.Instance.Port;
-//            string protocol = "http";
-//            
-//            if (MainServer.Instance.UseSSL)
-//            {
-//                hostName = MainServer.Instance.SSLCommonName;
-//                port = MainServer.Instance.SSLPort;
-//                protocol = "https";
-//            }
-//
-//            caps.RegisterHandler("FetchInventoryDescendents2", String.Format("{0}://{1}:{2}{3}", protocol, hostName, port, capUrl));
+            // m_log.DebugFormat(
+            //     "[FETCH INVENTORY DESCENDENTS2 MODULE]: Registered capability {0} at {1} in region {2} for {3}",
+            //     capName, capUrl, m_scene.RegionInfo.RegionName, agentID);
         }
 
 //        private void DeregisterCaps(UUID agentID, Caps caps)
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
index 36edd0b..51cc2bf 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
@@ -783,7 +783,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
         public virtual void Start()
         {
-            m_scene.AddNewClient(this, PresenceType.User);
+            m_scene.AddNewAgent(this, PresenceType.User);
 
             RefreshGroupMembership();
         }
@@ -12548,6 +12548,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             shape.PCode = addPacket.ObjectData.PCode;
             shape.State = addPacket.ObjectData.State;
+            shape.LastAttachPoint = addPacket.ObjectData.State;
             shape.PathBegin = addPacket.ObjectData.PathBegin;
             shape.PathEnd = addPacket.ObjectData.PathEnd;
             shape.PathScaleX = addPacket.ObjectData.PathScaleX;
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
index ad3f715..01981dd 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
@@ -1764,32 +1764,76 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 endPoint = (IPEndPoint)array[0];
                 CompleteAgentMovementPacket packet = (CompleteAgentMovementPacket)array[1];
 
+                m_log.DebugFormat(
+                    "[LLUDPSERVER]: Handling CompleteAgentMovement request from {0} in {1}", endPoint, m_scene.Name);
+
                 // Determine which agent this packet came from
-                int count = 20;
-                bool ready = false;
-                while (!ready && count-- > 0)
+                // We need to wait here because in when using the OpenSimulator V2 teleport protocol to travel to a destination
+                // simulator with no existing child presence, the viewer (at least LL 3.3.4) will send UseCircuitCode 
+                // and then CompleteAgentMovement immediately without waiting for an ack.  As we are now handling these
+                // packets asynchronously, we need to account for this thread proceeding more quickly than the 
+                // UseCircuitCode thread.
+                int count = 40;
+                while (count-- > 0)
                 {
-                    if (m_scene.TryGetClient(endPoint, out client) && client.IsActive && client.SceneAgent != null)
+                    if (m_scene.TryGetClient(endPoint, out client))
                     {
-                        LLClientView llClientView = (LLClientView)client;
-                        LLUDPClient udpClient = llClientView.UDPClient;
-                        if (udpClient != null && udpClient.IsConnected)
-                            ready = true;
+                        if (!client.IsActive)
+                        {
+                            // This check exists to catch a condition where the client has been closed by another thread
+                            // but has not yet been removed from the client manager (and possibly a new connection has
+                            // not yet been established).
+                            m_log.DebugFormat(
+                                "[LLUDPSERVER]: Received a CompleteAgentMovement from {0} for {1} in {2} but client is not active yet.  Waiting.",
+                                endPoint, client.Name, m_scene.Name);
+                        }
+                        else if (client.SceneAgent == null)
+                        {
+                            // This check exists to catch a condition where the new client has been added to the client
+                            // manager but the SceneAgent has not yet been set in Scene.AddNewAgent().  If we are too
+                            // eager, then the new ScenePresence may not have registered a listener for this messsage
+                            // before we try to process it.
+                            // XXX: A better long term fix may be to add the SceneAgent before the client is added to 
+                            // the client manager
+                            m_log.DebugFormat(
+                                "[LLUDPSERVER]: Received a CompleteAgentMovement from {0} for {1} in {2} but client SceneAgent not set yet.  Waiting.",
+                                endPoint, client.Name, m_scene.Name);
+                        }
                         else
                         {
-                            m_log.Debug("[LLUDPSERVER]: Received a CompleteMovementIntoRegion in " + m_scene.RegionInfo.RegionName + " (not ready yet)");
-                            Thread.Sleep(200);
+                            break;
                         }
                     }
                     else
                     {
-                        m_log.Debug("[LLUDPSERVER]: Received a CompleteMovementIntoRegion in " + m_scene.RegionInfo.RegionName + " (not ready yet)");
-                        Thread.Sleep(200);
+                        m_log.DebugFormat(
+                            "[LLUDPSERVER]: Received a CompleteAgentMovement from {0} in {1} but no client exists yet.  Waiting.", 
+                            endPoint, m_scene.Name);
                     }
+
+                    Thread.Sleep(200);
                 }
 
                 if (client == null)
+                {
+                    m_log.DebugFormat(
+                        "[LLUDPSERVER]: No client found for CompleteAgentMovement from {0} in {1} after wait.  Dropping.",
+                        endPoint, m_scene.Name);
+
+                    return;
+                }
+                else if (!client.IsActive || client.SceneAgent == null)
+                {
+                    // This check exists to catch a condition where the client has been closed by another thread
+                    // but has not yet been removed from the client manager.
+                    // The packet could be simply ignored but it is useful to know if this condition occurred for other debugging
+                    // purposes.
+                    m_log.DebugFormat(
+                        "[LLUDPSERVER]: Received a CompleteAgentMovement from {0} for {1} in {2} but client is not active after wait.  Dropping.",
+                        endPoint, client.Name, m_scene.Name);
+
                     return;
+                }
 
                 IncomingPacket incomingPacket1;
 
@@ -1810,7 +1854,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             catch (Exception e)
             {
                 m_log.ErrorFormat(
-                    "[LLUDPSERVER]: CompleteMovementIntoRegion handling from endpoint {0}, client {1} {2} failed.  Exception {3}{4}",
+                    "[LLUDPSERVER]: CompleteAgentMovement handling from endpoint {0}, client {1} {2} failed.  Exception {3}{4}",
                     endPoint != null ? endPoint.ToString() : "n/a",
                     client != null ? client.Name : "unknown",
                     client != null ? client.AgentId.ToString() : "unknown",
@@ -1921,7 +1965,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                      client.Kick("Simulator logged you out due to connection timeout.");
             }
 
-            m_scene.IncomingCloseAgent(client.AgentId, true);
+            m_scene.CloseAgent(client.AgentId, true);
         }
 
         private void IncomingPacketHandler()
@@ -2264,7 +2308,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             if (!client.IsLoggingOut)
             {
                 client.IsLoggingOut = true;
-                m_scene.IncomingCloseAgent(client.AgentId, false);
+                m_scene.CloseAgent(client.AgentId, false);
             }
         }
     }
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs b/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
index 48c5b37..881e768 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
@@ -291,7 +291,16 @@ namespace OpenMetaverse
                         m_log.Warn("[UDPBASE]: Salvaged the UDP listener on port " + m_udpPort);
                     }
                 }
-                catch (ObjectDisposedException) { }
+                catch (ObjectDisposedException e) 
+                { 
+                    m_log.Error(
+                        string.Format("[UDPBASE]: Error processing UDP begin receive {0}.  Exception  ", UdpReceives), e);
+                }
+                catch (Exception e)
+                {
+                    m_log.Error(
+                        string.Format("[UDPBASE]: Error processing UDP begin receive {0}.  Exception  ", UdpReceives), e);
+                }
             }
         }
 
@@ -308,12 +317,12 @@ namespace OpenMetaverse
                 if (m_asyncPacketHandling)
                     AsyncBeginReceive();
 
-                // get the buffer that was created in AsyncBeginReceive
-                // this is the received data
-                UDPPacketBuffer buffer = (UDPPacketBuffer)iar.AsyncState;
-
                 try
                 {
+                    // get the buffer that was created in AsyncBeginReceive
+                    // this is the received data
+                    UDPPacketBuffer buffer = (UDPPacketBuffer)iar.AsyncState;
+
                     int startTick = Util.EnvironmentTickCount();
 
                     // get the length of data actually read from the socket, store it with the
@@ -341,8 +350,24 @@ namespace OpenMetaverse
                         m_currentReceiveTimeSamples++;
                     }
                 }
-                catch (SocketException) { }
-                catch (ObjectDisposedException) { }
+                catch (SocketException se) 
+                { 
+                    m_log.Error(
+                        string.Format(
+                            "[UDPBASE]: Error processing UDP end receive {0}, socket error code {1}.  Exception  ", 
+                            UdpReceives, se.ErrorCode), 
+                        se);
+                }
+                catch (ObjectDisposedException e) 
+                { 
+                    m_log.Error(
+                        string.Format("[UDPBASE]: Error processing UDP end receive {0}.  Exception  ", UdpReceives), e);
+                }
+                catch (Exception e)
+                {
+                    m_log.Error(
+                        string.Format("[UDPBASE]: Error processing UDP end receive {0}.  Exception  ", UdpReceives), e);
+                }
                 finally
                 {
 //                    if (UsePools)
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/Tests/MockScene.cs b/OpenSim/Region/ClientStack/Linden/UDP/Tests/MockScene.cs
index 119a677..e2178e5 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/Tests/MockScene.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/Tests/MockScene.cs
@@ -52,17 +52,18 @@ namespace OpenSim.Region.ClientStack.LindenUDP.Tests
         public override void Update(int frames) {}
         public override void LoadWorldMap() {}
         
-        public override ISceneAgent AddNewClient(IClientAPI client, PresenceType type)
+        public override ISceneAgent AddNewAgent(IClientAPI client, PresenceType type)
         {
             client.OnObjectName += RecordObjectNameCall;
 
             // FIXME
             return null;
         }
-        
-        public override void RemoveClient(UUID agentID, bool someReason) {}
-//        public override void CloseAllAgents(uint circuitcode) {}
+
+        public override bool CloseAgent(UUID agentID, bool force) { return true; }
+
         public override bool CheckClient(UUID clientId, IPEndPoint endPoint) { return true; }
+
         public override void OtherRegionUp(GridRegion otherRegion) {  }
 
         public override bool TryGetScenePresence(UUID uuid, out ScenePresence sp) { sp = null; return false; }
diff --git a/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs b/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
index 95cc6b7..81a7278 100644
--- a/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
@@ -482,13 +482,28 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
                 attachPos = Vector3.Zero;
             }
 
-            // AttachmentPt 0 (default) means the client chose to 'wear' the attachment.
+            // if the attachment point is the same as previous, make sure we get the saved
+            // position info.
+            if (attachmentPt != 0 && attachmentPt == group.RootPart.Shape.LastAttachPoint)
+            {
+                attachPos = group.RootPart.AttachedPos;
+            }
+
+            // AttachmentPt 0 means the client chose to 'wear' the attachment.
             if (attachmentPt == (uint)AttachmentPoint.Default)
             {
                 // Check object for stored attachment point
                 attachmentPt = group.AttachmentPoint;
             }
 
+            // if we didn't find an attach point, look for where it was last attached
+            if (attachmentPt == 0)
+            {
+                attachmentPt = (uint)group.RootPart.Shape.LastAttachPoint;
+                attachPos = group.RootPart.AttachedPos;
+                group.HasGroupChanged = true;
+            }
+
             // if we still didn't find a suitable attachment point.......
             if (attachmentPt == 0)
             {
@@ -684,6 +699,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
                 so.ClearPartAttachmentData();
                 rootPart.ApplyPhysics(rootPart.GetEffectiveObjectFlags(), rootPart.VolumeDetectActive,false);
                 so.HasGroupChanged = true;
+                so.RootPart.Shape.LastAttachPoint = (byte)so.AttachmentPoint;
                 rootPart.Rezzed = DateTime.Now;
                 rootPart.RemFlag(PrimFlags.TemporaryOnRez);
                 so.AttachToBackup();
diff --git a/OpenSim/Region/CoreModules/Avatar/Attachments/Tests/AttachmentsModuleTests.cs b/OpenSim/Region/CoreModules/Avatar/Attachments/Tests/AttachmentsModuleTests.cs
index 62acd78..f023e77 100644
--- a/OpenSim/Region/CoreModules/Avatar/Attachments/Tests/AttachmentsModuleTests.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Attachments/Tests/AttachmentsModuleTests.cs
@@ -719,7 +719,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
             SceneObjectGroup rezzedAtt = presence.GetAttachments()[0];
 
             m_numberOfAttachEventsFired = 0;
-            scene.IncomingCloseAgent(presence.UUID, false);
+            scene.CloseAgent(presence.UUID, false);
 
             // Check that we can't retrieve this attachment from the scene.
             Assert.That(scene.GetSceneObjectGroup(rezzedAtt.UUID), Is.Null);
diff --git a/OpenSim/Region/CoreModules/Avatar/Gods/GodsModule.cs b/OpenSim/Region/CoreModules/Avatar/Gods/GodsModule.cs
index 6b14fa6..adb838c 100644
--- a/OpenSim/Region/CoreModules/Avatar/Gods/GodsModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Gods/GodsModule.cs
@@ -276,7 +276,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Gods
             if (sp.IsChildAgent)
                 return;
             sp.ControllingClient.Kick(reason);
-            sp.Scene.IncomingCloseAgent(sp.UUID, true); 
+            sp.Scene.CloseAgent(sp.UUID, true); 
         }
 
         private void OnIncomingInstantMessage(GridInstantMessage msg)
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
index e285f21..03aaaac 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
@@ -149,8 +149,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
         private void OnInstantMessage(IClientAPI client, GridInstantMessage im)
         {
 //            m_log.DebugFormat(
-//                "[INVENTORY TRANSFER]: {0} IM type received from {1}", 
-//                (InstantMessageDialog)im.dialog, client.Name);
+//                "[INVENTORY TRANSFER]: {0} IM type received from client {1}. From={2} ({3}), To={4}", 
+//                (InstantMessageDialog)im.dialog, client.Name,
+//                im.fromAgentID, im.fromAgentName, im.toAgentID);
           
             Scene scene = FindClientScene(client.AgentId);
 
@@ -467,9 +468,20 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
         /// <summary>
         ///
         /// </summary>
-        /// <param name="msg"></param>
+        /// <param name="im"></param>
         private void OnGridInstantMessage(GridInstantMessage im)
         {
+            // Check if it's a type of message that we should handle
+            if (!((im.dialog == (byte) InstantMessageDialog.InventoryOffered)
+                || (im.dialog == (byte) InstantMessageDialog.InventoryAccepted)
+                || (im.dialog == (byte) InstantMessageDialog.InventoryDeclined)
+                || (im.dialog == (byte) InstantMessageDialog.TaskInventoryDeclined)))
+                return;
+
+            m_log.DebugFormat(
+                "[INVENTORY TRANSFER]: {0} IM type received from grid. From={1} ({2}), To={3}",
+                (InstantMessageDialog)im.dialog, im.fromAgentID, im.fromAgentName, im.toAgentID);
+
             // Check if this is ours to handle
             //
             Scene scene = FindClientScene(new UUID(im.toAgentID));
diff --git a/OpenSim/Region/CoreModules/Avatar/Lure/LureModule.cs b/OpenSim/Region/CoreModules/Avatar/Lure/LureModule.cs
index 0c64f19..c517a30 100644
--- a/OpenSim/Region/CoreModules/Avatar/Lure/LureModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Lure/LureModule.cs
@@ -165,7 +165,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Lure
                     (uint)presence.AbsolutePosition.Y,
                     (uint)presence.AbsolutePosition.Z + 2);
 
-            m_log.DebugFormat("TP invite with message {0}, type {1}", message, lureType);
+            m_log.DebugFormat("[LURE MODULE]: TP invite with message {0}, type {1}", message, lureType);
 
             GridInstantMessage m;
 
diff --git a/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs b/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
index ed14c12..ef5239a 100644
--- a/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
@@ -56,6 +56,13 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
         public const int DefaultMaxTransferDistance = 4095;
         public const bool WaitForAgentArrivedAtDestinationDefault = true;
 
+        public string OutgoingTransferVersionName { get; set; }
+
+        /// <summary>
+        /// Determine the maximum entity transfer version we will use for teleports.
+        /// </summary>
+        public float MaxOutgoingTransferVersion { get; set; }
+
         /// <summary>
         /// The maximum distance, in standard region units (256m) that an agent is allowed to transfer.
         /// </summary>
@@ -151,9 +158,39 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
         /// <param name="source"></param>
         protected virtual void InitialiseCommon(IConfigSource source)
         {
+            string transferVersionName = "SIMULATION";
+            float maxTransferVersion = 0.2f;
+
             IConfig transferConfig = source.Configs["EntityTransfer"];
             if (transferConfig != null)
             {
+                string rawVersion 
+                    = transferConfig.GetString(
+                        "MaxOutgoingTransferVersion", 
+                        string.Format("{0}/{1}", transferVersionName, maxTransferVersion));
+
+                string[] rawVersionComponents = rawVersion.Split(new char[] { '/' });
+
+                bool versionValid = false;
+
+                if (rawVersionComponents.Length >= 2)
+                    versionValid = float.TryParse(rawVersionComponents[1], out maxTransferVersion);
+
+                if (!versionValid)
+                {
+                    m_log.ErrorFormat(
+                        "[ENTITY TRANSFER MODULE]: MaxOutgoingTransferVersion {0} is invalid, using {1}", 
+                        rawVersion, string.Format("{0}/{1}", transferVersionName, maxTransferVersion));
+                }
+                else
+                {
+                    transferVersionName = rawVersionComponents[0];
+
+                    m_log.InfoFormat(
+                        "[ENTITY TRANSFER MODULE]: MaxOutgoingTransferVersion set to {0}", 
+                        string.Format("{0}/{1}", transferVersionName, maxTransferVersion));
+                }
+
                 DisableInterRegionTeleportCancellation 
                     = transferConfig.GetBoolean("DisableInterRegionTeleportCancellation", false);
 
@@ -167,6 +204,9 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                 MaxTransferDistance = DefaultMaxTransferDistance;
             }
 
+            OutgoingTransferVersionName = transferVersionName;
+            MaxOutgoingTransferVersion = maxTransferVersion;
+
             m_entityTransferStateMachine = new EntityTransferStateMachine(this);
 
             m_Enabled = true;
@@ -522,6 +562,9 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
         /// </returns>
         private bool IsWithinMaxTeleportDistance(RegionInfo sourceRegion, GridRegion destRegion)
         {
+            if(MaxTransferDistance == 0)
+                return true;
+
 //                        m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Source co-ords are x={0} y={1}", curRegionX, curRegionY);
 //
 //                        m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Final dest is x={0} y={1} {2}@{3}",
@@ -623,7 +666,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             if (!sp.ValidateAttachments())
                 m_log.DebugFormat(
                     "[ENTITY TRANSFER MODULE]: Failed validation of all attachments for teleport of {0} from {1} to {2}.  Continuing.",
-                    sp.Name, sp.Scene.RegionInfo.RegionName, finalDestination.RegionName);
+                    sp.Name, sp.Scene.Name, finalDestination.RegionName);
 
             string reason;
             string version;
@@ -634,7 +677,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
 
                 m_log.DebugFormat(
                     "[ENTITY TRANSFER MODULE]: {0} was stopped from teleporting from {1} to {2} because {3}",
-                    sp.Name, sp.Scene.RegionInfo.RegionName, finalDestination.RegionName, reason);
+                    sp.Name, sp.Scene.Name, finalDestination.RegionName, reason);
 
                 return;
             }
@@ -644,7 +687,9 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             // as server attempts.
             m_interRegionTeleportAttempts.Value++;
 
-            m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Destination is running version {0}", version);
+            m_log.DebugFormat(
+                "[ENTITY TRANSFER MODULE]: {0} max transfer version is {1}/{2}, {3} max version is {4}", 
+                sp.Scene.Name, OutgoingTransferVersionName, MaxOutgoingTransferVersion, finalDestination.RegionName, version);
 
             // Fixing a bug where teleporting while sitting results in the avatar ending up removed from
             // both regions
@@ -691,7 +736,14 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                 agentCircuit.CapsPath = CapsUtil.GetRandomCapsObjectPath();
             }
 
-            if (version.Equals("SIMULATION/0.2"))
+            // We're going to fallback to V1 if the destination gives us anything smaller than 0.2 or we're forcing
+            // use of the earlier protocol
+            float versionNumber = 0.1f;
+            string[] versionComponents = version.Split(new char[] { '/' });
+            if (versionComponents.Length >= 2)
+                float.TryParse(versionComponents[1], out versionNumber);
+
+            if (versionNumber == 0.2f && MaxOutgoingTransferVersion >= versionNumber)
                 TransferAgent_V2(sp, agentCircuit, reg, finalDestination, endPoint, teleportFlags, oldRegionX, newRegionX, oldRegionY, newRegionY, version, out reason);
             else
                 TransferAgent_V1(sp, agentCircuit, reg, finalDestination, endPoint, teleportFlags, oldRegionX, newRegionX, oldRegionY, newRegionY, version, out reason);           
@@ -925,7 +977,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
 
             if (NeedsClosing(sp.DrawDistance, oldRegionX, newRegionX, oldRegionY, newRegionY, reg))
             {
-                if (!sp.Scene.IncomingPreCloseAgent(sp))
+                if (!sp.Scene.IncomingPreCloseClient(sp))
                     return;
 
                 // We need to delay here because Imprudence viewers, unlike v1 or v3, have a short (<200ms, <500ms) delay before
@@ -936,7 +988,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                 // an agent cannot teleport back to this region if it has teleported away.
                 Thread.Sleep(2000);
 
-                sp.Scene.IncomingCloseAgent(sp.UUID, false);
+                sp.Scene.CloseAgent(sp.UUID, false);
             }
             else
             {
@@ -1090,7 +1142,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             // Finally, let's close this previously-known-as-root agent, when the jump is outside the view zone
             if (NeedsClosing(sp.DrawDistance, oldRegionX, newRegionX, oldRegionY, newRegionY, reg))
             {
-                if (!sp.Scene.IncomingPreCloseAgent(sp))
+                if (!sp.Scene.IncomingPreCloseClient(sp))
                     return;
 
                 // RED ALERT!!!!
@@ -1107,7 +1159,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                 m_log.DebugFormat(
                     "[ENTITY TRANSFER MODULE]: Closing agent {0} in {1} after teleport", sp.Name, Scene.Name);
 
-                sp.Scene.IncomingCloseAgent(sp.UUID, false);
+                sp.Scene.CloseAgent(sp.UUID, false);
             }
             else
             {
diff --git a/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs b/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs
index 1cf1884..74b834a 100644
--- a/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs
@@ -181,7 +181,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                 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);
+                    m_log.DebugFormat("[HG ENTITY TRANSFER MODULE]: Incoming attachment {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(Scene.AssetService, url);
                     uuidGatherer.GatherAssetUuids(so, ids);
diff --git a/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs b/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
index 89bb037..3feeb13 100644
--- a/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
@@ -906,6 +906,14 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
                     m_log.Debug("[INVENTORY ACCESS MODULE]: Object has UUID.Zero! Position 3");
                 }
 
+                // if this was previously an attachment and is now being rezzed,
+                // save the old attachment info.
+                if (group.IsAttachment == false && group.RootPart.Shape.State != 0)
+                {
+                    group.RootPart.AttachedPos = group.AbsolutePosition;
+                    group.RootPart.Shape.LastAttachPoint = (byte)group.AttachmentPoint;
+                }
+
                 foreach (SceneObjectPart part in group.Parts)
                 {
                     // Make the rezzer the owner, as this is not necessarily set correctly in the serialized asset.
diff --git a/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs b/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs
index 8c983e6..d3926cc 100644
--- a/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs
@@ -178,17 +178,20 @@ namespace OpenSim.Region.CoreModules.Framework.UserManagement
                 m_ServiceThrottle.Enqueue("name", uuid.ToString(),  delegate
                 {
                     //m_log.DebugFormat("[YYY]: Name request {0}", uuid);
-                    bool foundRealName = TryGetUserNames(uuid, names);
-
-                    if (names.Length == 2)
-                    {
-                        if (!foundRealName)
-                            m_log.DebugFormat("[USER MANAGEMENT MODULE]: Sending {0} {1} for {2} to {3} since no bound name found", names[0], names[1], uuid, client.Name);
 
+                    // As least upto September 2013, clients permanently cache UUID -> Name bindings.  Some clients
+                    // appear to clear this when the user asks it to clear the cache, but others may not.
+                    //
+                    // So to avoid clients
+                    // (particularly Hypergrid clients) permanently binding "Unknown User" to a given UUID, we will 
+                    // instead drop the request entirely.
+                    if (TryGetUserNames(uuid, names))
                         client.SendNameReply(uuid, names[0], names[1]);
-                    }
+//                    else
+//                        m_log.DebugFormat(
+//                            "[USER MANAGEMENT MODULE]: No bound name for {0} found, ignoring request from {1}", 
+//                            uuid, client.Name);
                 });
-
             }
         }
 
@@ -391,7 +394,7 @@ namespace OpenSim.Region.CoreModules.Framework.UserManagement
                 }
 
                 names[0] = "Unknown";
-                names[1] = "UserUMMTGUN8";
+                names[1] = "UserUMMTGUN9";
 
                 return false;
             }
@@ -539,7 +542,7 @@ namespace OpenSim.Region.CoreModules.Framework.UserManagement
             AddUser(uuid, homeURL + ";" + first + " " + last);
         }
 
-        public void AddUser (UUID id, string creatorData)
+        public void AddUser(UUID id, string creatorData)
         {
             //m_log.DebugFormat("[USER MANAGEMENT MODULE]: Adding user with id {0}, creatorData {1}", id, creatorData);
 
@@ -599,6 +602,7 @@ namespace OpenSim.Region.CoreModules.Framework.UserManagement
                             user.LastName = "@unknown";
                         }
                     }
+
                     if (parts.Length >= 2)
                         user.FirstName = parts[1].Replace(' ', '.');
                 }
@@ -611,7 +615,7 @@ namespace OpenSim.Region.CoreModules.Framework.UserManagement
                     user.FirstName = "Unknown";
                     user.LastName = "UserUMMAU4";
                 }
-
+                
                 AddUserInternal(user);
             }
         }
@@ -639,6 +643,7 @@ namespace OpenSim.Region.CoreModules.Framework.UserManagement
 
         protected void Init()
         {
+            AddUser(UUID.Zero, "Unknown", "User");
             RegisterConsoleCmds();
         }
 
diff --git a/OpenSim/Region/CoreModules/Hypergrid/HGWorldMapModule.cs b/OpenSim/Region/CoreModules/Hypergrid/HGWorldMapModule.cs
index f196973..8946b5c 100644
--- a/OpenSim/Region/CoreModules/Hypergrid/HGWorldMapModule.cs
+++ b/OpenSim/Region/CoreModules/Hypergrid/HGWorldMapModule.cs
@@ -129,7 +129,7 @@ namespace OpenSim.Region.CoreModules.Hypergrid
                         b.Access = 254; // means 'simulator is offline'. We need this because the viewer ignores 255's
                     }
 
-                    m_log.DebugFormat("[HG MAP]: Reseting {0} blocks", mapBlocks.Count);
+                    m_log.DebugFormat("[HG MAP]: Resetting {0} blocks", mapBlocks.Count);
                     sp.ControllingClient.SendMapBlock(mapBlocks, 0);
                     m_SeenMapBlocks.Remove(clientID);
                 }
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Simulation/LocalSimulationConnector.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Simulation/LocalSimulationConnector.cs
index a9aa73c..3be80eb 100644
--- a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Simulation/LocalSimulationConnector.cs
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Simulation/LocalSimulationConnector.cs
@@ -94,7 +94,7 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Simulation
                     throw new Exception(string.Format("Invalid ConnectorProtocolVersion {0}", ServiceVersion));
 
                 m_log.InfoFormat(
-                    "[LOCAL SIMULATION CONNECTOR]: Initialzied with connector protocol version {0}", ServiceVersion);
+                    "[LOCAL SIMULATION CONNECTOR]: Initialized with connector protocol version {0}", ServiceVersion);
             }
         }
 
@@ -235,7 +235,7 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Simulation
 //                        "[LOCAL SIMULATION CONNECTOR]: Found region {0} {1} to send AgentUpdate",
 //                        destination.RegionName, destination.RegionID);
 
-                return m_scenes[destination.RegionID].IncomingChildAgentDataUpdate(cAgentData);
+                return m_scenes[destination.RegionID].IncomingUpdateChildAgent(cAgentData);
             }
 
 //            m_log.DebugFormat(
@@ -245,7 +245,7 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Simulation
             return false;
         }
 
-        public bool UpdateAgent(GridRegion destination, AgentPosition cAgentData)
+        public bool UpdateAgent(GridRegion destination, AgentPosition agentPosition)
         {
             if (destination == null)
                 return false;
@@ -257,7 +257,7 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Simulation
             foreach (Scene s in m_scenes.Values)
             {
 //                m_log.Debug("[LOCAL COMMS]: Found region to send ChildAgentUpdate");
-                s.IncomingChildAgentDataUpdate(cAgentData);
+                s.IncomingUpdateChildAgent(agentPosition);
             }
 
             //m_log.Debug("[LOCAL COMMS]: region not found for ChildAgentUpdate");
@@ -311,7 +311,7 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Simulation
 //                        "[LOCAL SIMULATION CONNECTOR]: Found region {0} {1} to send AgentUpdate",
 //                        s.RegionInfo.RegionName, destination.RegionHandle);
 
-                m_scenes[destination.RegionID].IncomingCloseAgent(id, false, auth_token);
+                m_scenes[destination.RegionID].CloseAgent(id, false, auth_token);
                 return true;
             }
             //m_log.Debug("[LOCAL COMMS]: region not found in SendCloseAgent");
diff --git a/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs b/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
index 1808fdd..487aa09 100644
--- a/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
+++ b/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
@@ -572,7 +572,7 @@ namespace OpenSim.Region.CoreModules.World.Estate
                                 if (!Scene.TeleportClientHome(user, s.ControllingClient))
                                 {
                                     s.ControllingClient.Kick("Your access to the region was revoked and TP home failed - you have been logged out.");
-                                    Scene.IncomingCloseAgent(s.UUID, false);
+                                    Scene.CloseAgent(s.UUID, false);
                                 }
                             }
                         }
@@ -807,7 +807,7 @@ namespace OpenSim.Region.CoreModules.World.Estate
                     if (!Scene.TeleportClientHome(prey, s.ControllingClient))
                     {
                         s.ControllingClient.Kick("You were teleported home by the region owner, but the TP failed - you have been logged out.");
-                        Scene.IncomingCloseAgent(s.UUID, false);
+                        Scene.CloseAgent(s.UUID, false);
                     }
                 }
             }
@@ -830,7 +830,7 @@ namespace OpenSim.Region.CoreModules.World.Estate
                         if (!Scene.TeleportClientHome(p.UUID, p.ControllingClient))
                         {
                             p.ControllingClient.Kick("You were teleported home by the region owner, but the TP failed - you have been logged out.");
-                            Scene.IncomingCloseAgent(p.UUID, false);
+                            Scene.CloseAgent(p.UUID, false);
                         }
                     }
                 }
diff --git a/OpenSim/Region/Framework/Scenes/EventManager.cs b/OpenSim/Region/Framework/Scenes/EventManager.cs
index 6e8eb91..7f06e82 100644
--- a/OpenSim/Region/Framework/Scenes/EventManager.cs
+++ b/OpenSim/Region/Framework/Scenes/EventManager.cs
@@ -148,7 +148,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// 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
+        /// Triggered in <see cref="OpenSim.Region.Framework.Scenes.Scene.AddNewAgent"/> 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;
@@ -159,7 +159,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// 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
+        /// Triggered in <see cref="OpenSim.Region.Framework.Scenes.Scene.AddNewAgent"/> 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
@@ -1107,7 +1107,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// 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"/>
+        /// via <see cref="OpenSim.Region.Framework.Scenes.Scene.AddNewAgent"/>
         /// </remarks>
         public event MoneyTransferEvent OnMoneyTransfer;
 
diff --git a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
index 4337b5a..659bde9 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
@@ -507,6 +507,9 @@ namespace OpenSim.Region.Framework.Scenes
                     // This MAY be problematic, if it is, another solution
                     // needs to be found. If inventory item flags are updated
                     // the viewer's notion of the item needs to be refreshed.
+                    //
+                    // In other situations we cannot send out a bulk update here, since this will cause editing of clothing to start 
+                    // failing frequently.  Possibly this is a race with a separate transaction that uploads the asset.
                     if (sendUpdate)
                         remoteClient.SendBulkUpdateInventory(item);
                 }
@@ -2393,6 +2396,13 @@ namespace OpenSim.Region.Framework.Scenes
                     sourcePart.Inventory.RemoveInventoryItem(item.ItemID);
             }
 
+
+            if (group.IsAttachment == false && group.RootPart.Shape.State != 0)
+            {
+                group.RootPart.AttachedPos = group.AbsolutePosition;
+                group.RootPart.Shape.LastAttachPoint = (byte)group.AttachmentPoint;
+            }
+                                    
             group.FromPartID = sourcePart.UUID;
             AddNewSceneObject(group, true, pos, rot, vel);
             
diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index d6d2df4..21036d8 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -751,6 +751,7 @@ namespace OpenSim.Region.Framework.Scenes
             m_config = config;
             MinFrameTime = 0.089f;
             MinMaintenanceTime = 1;
+            SeeIntoRegion = true;
 
             Random random = new Random();
 
@@ -863,6 +864,7 @@ namespace OpenSim.Region.Framework.Scenes
                 //Animation states
                 m_useFlySlow = startupConfig.GetBoolean("enableflyslow", false);
 
+                SeeIntoRegion = startupConfig.GetBoolean("see_into_region", SeeIntoRegion);
 
                 MaxUndoCount = startupConfig.GetInt("MaxPrimUndos", 20);
 
@@ -1338,7 +1340,7 @@ namespace OpenSim.Region.Framework.Scenes
             Thread.Sleep(500);
 
             // Stop all client threads.
-            ForEachScenePresence(delegate(ScenePresence avatar) { IncomingCloseAgent(avatar.UUID, false); });
+            ForEachScenePresence(delegate(ScenePresence avatar) { CloseAgent(avatar.UUID, false); });
 
             m_log.Debug("[SCENE]: TriggerSceneShuttingDown");
             EventManager.TriggerSceneShuttingDown(this);
@@ -2953,7 +2955,7 @@ namespace OpenSim.Region.Framework.Scenes
 
         #region Add/Remove Avatar Methods
 
-        public override ISceneAgent AddNewClient(IClientAPI client, PresenceType type)
+        public override ISceneAgent AddNewAgent(IClientAPI client, PresenceType type)
         {
             ScenePresence sp;
             bool vialogin;
@@ -2961,7 +2963,7 @@ namespace OpenSim.Region.Framework.Scenes
 
             // Validation occurs in LLUDPServer
             //
-            // XXX: A race condition exists here where two simultaneous calls to AddNewClient can interfere with
+            // XXX: A race condition exists here where two simultaneous calls to AddNewAgent can interfere with
             // each other.  In practice, this does not currently occur in the code.
             AgentCircuitData aCircuit = m_authenticateHandler.GetAgentCircuitData(client.CircuitCode);
 
@@ -2969,9 +2971,9 @@ namespace OpenSim.Region.Framework.Scenes
             // 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
+            // It would be easier to lock across all NewUserConnection(), AddNewAgent() 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.
+            // response in some module listening to AddNewAgent()) from holding up unrelated agent calls.
             //
             // In practice, the lock (this) in LLUDPServer.AddNewClient() currently lock across all
             // AddNewClient() operations (though not other ops).
@@ -2988,7 +2990,7 @@ namespace OpenSim.Region.Framework.Scenes
 
                 // 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
+                // other problems, and possibly the code calling AddNewAgent() should ensure that no client is already
                 // connected.
                 if (sp == null)
                 {
@@ -3021,6 +3023,9 @@ namespace OpenSim.Region.Framework.Scenes
     
                 // We must set this here so that TriggerOnNewClient and TriggerOnClientLogin can determine whether the
                 // client is for a root or child agent.
+                // XXX: This may be better set for a new client before that client is added to the client manager.
+                // But need to know what happens in the case where a ScenePresence is already present (and if this 
+                // actually occurs).
                 client.SceneAgent = sp;
 
                 // This is currently also being done earlier in NewUserConnection for real users to see if this 
@@ -3130,7 +3135,7 @@ namespace OpenSim.Region.Framework.Scenes
                         {
                             PresenceService.LogoutAgent(sp.ControllingClient.SessionId);
 
-                            IncomingCloseAgent(sp.UUID, false);
+                            CloseAgent(sp.UUID, false);
                         }
 
                         // BANG! SLASH!
@@ -3554,7 +3559,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name='closeChildAgents'>
         /// Close the neighbour child agents associated with this client.
         /// </param>
-        public override void RemoveClient(UUID agentID, bool closeChildAgents)
+        public void RemoveClient(UUID agentID, bool closeChildAgents)
         {
             AgentCircuitData acd = m_authenticateHandler.GetAgentCircuitData(agentID);
 
@@ -3940,7 +3945,7 @@ namespace OpenSim.Region.Framework.Scenes
                             sp.Name, sp.UUID, RegionInfo.RegionName);
 
                         if (sp.ControllingClient != null)
-                            IncomingCloseAgent(sp.UUID, true);
+                            CloseAgent(sp.UUID, true);
 
                         sp = null;
                     }
@@ -4024,19 +4029,6 @@ namespace OpenSim.Region.Framework.Scenes
                     // Let the SP know how we got here. This has a lot of interesting
                     // uses down the line.
                     sp.TeleportFlags = (TPFlags)teleportFlags;
-
-                    // We must carry out a further authorization check if there's an 
-                    // attempt to make a child agent into a root agent, since SeeIntoRegion may have allowed a child
-                    // agent to login to a region where a full avatar would not be allowed.
-                    //
-                    // We determine whether this is a CreateAgent for a future non-child agent by inspecting 
-                    // TeleportFlags, which will be default for a child connection.  This relies on input from the source
-                    // region.
-                    if (sp.TeleportFlags != TPFlags.Default)
-                    {
-                        if (!AuthorizeUser(acd, false, out reason))
-                            return false;
-                    }
     
                     if (sp.IsChildAgent)
                     {
@@ -4469,7 +4461,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="cAgentData">Agent that contains all of the relevant things about an agent.
         /// Appearance, animations, position, etc.</param>
         /// <returns>true if we handled it.</returns>
-        public virtual bool IncomingChildAgentDataUpdate(AgentData cAgentData)
+        public virtual bool IncomingUpdateChildAgent(AgentData cAgentData)
         {
             m_log.DebugFormat(
                 "[SCENE]: Incoming child agent update for {0} in {1}", cAgentData.AgentID, RegionInfo.RegionName);
@@ -4487,7 +4479,7 @@ namespace OpenSim.Region.Framework.Scenes
             ILandObject nearestParcel = GetNearestAllowedParcel(cAgentData.AgentID, Constants.RegionSize / 2, Constants.RegionSize / 2);
             if (nearestParcel == null)
             {
-                m_log.DebugFormat(
+                m_log.InfoFormat(
                     "[SCENE]: Denying root agent entry to {0} in {1}: no allowed parcel",
                     cAgentData.AgentID, RegionInfo.RegionName);
 
@@ -4497,7 +4489,7 @@ namespace OpenSim.Region.Framework.Scenes
             // We have to wait until the viewer contacts this region
             // after receiving the EnableSimulator HTTP Event Queue message (for the v1 teleport protocol) 
             // or TeleportFinish (for the v2 teleport protocol).  This triggers the viewer to send
-            // a UseCircuitCode packet which in turn calls AddNewClient which finally creates the ScenePresence.
+            // a UseCircuitCode packet which in turn calls AddNewAgent which finally creates the ScenePresence.
             ScenePresence sp = WaitGetScenePresence(cAgentData.AgentID);
 
             if (sp != null)
@@ -4512,7 +4504,7 @@ namespace OpenSim.Region.Framework.Scenes
                         sp.UUID, sp.ControllingClient.SessionId, cAgentData.SessionID));
                 }
 
-                sp.ChildAgentDataUpdate(cAgentData);
+                sp.UpdateChildAgent(cAgentData);
 
                 int ntimes = 20;
                 if (cAgentData.SenderWantsToWaitForRoot)
@@ -4520,9 +4512,14 @@ namespace OpenSim.Region.Framework.Scenes
                     while (sp.IsChildAgent && ntimes-- > 0)
                         Thread.Sleep(1000);
 
-                    m_log.DebugFormat(
-                        "[SCENE]: Found presence {0} {1} {2} in {3} after {4} waits",
-                        sp.Name, sp.UUID, sp.IsChildAgent ? "child" : "root", Name, 20 - ntimes);
+                    if (sp.IsChildAgent)
+                        m_log.WarnFormat(
+                            "[SCENE]: Found presence {0} {1} unexpectedly still child in {2}",
+                            sp.Name, sp.UUID, Name);
+                    else
+                        m_log.InfoFormat(
+                            "[SCENE]: Found presence {0} {1} as root in {2} after {3} waits",
+                                sp.Name, sp.UUID, Name, 20 - ntimes);
 
                     if (sp.IsChildAgent)
                         return false;
@@ -4540,7 +4537,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         /// <param name="cAgentData">AgentPosition that contains agent positional data so we can know what to send</param>
         /// <returns>true if we handled it.</returns>
-        public virtual bool IncomingChildAgentDataUpdate(AgentPosition cAgentData)
+        public virtual bool IncomingUpdateChildAgent(AgentPosition cAgentData)
         {
             //m_log.Debug(" XXX Scene IncomingChildAgentDataUpdate POSITION in " + RegionInfo.RegionName);
             ScenePresence childAgentUpdate = GetScenePresence(cAgentData.AgentID);
@@ -4560,7 +4557,7 @@ namespace OpenSim.Region.Framework.Scenes
                     uint tRegionX = RegionInfo.RegionLocX;
                     uint tRegionY = RegionInfo.RegionLocY;
                     //Send Data to ScenePresence
-                    childAgentUpdate.ChildAgentDataUpdate(cAgentData, tRegionX, tRegionY, rRegionX, rRegionY);
+                    childAgentUpdate.UpdateChildAgent(cAgentData, tRegionX, tRegionY, rRegionX, rRegionY);
                     // Not Implemented:
                     //TODO: Do we need to pass the message on to one of our neighbors?
                 }
@@ -4610,7 +4607,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="force"></param>
         /// <param name="auth_token"></param>
         /// <returns></returns>
-        public bool IncomingCloseAgent(UUID agentID, bool force, string auth_token)
+        public bool CloseAgent(UUID agentID, bool force, string auth_token)
         {
             //m_log.DebugFormat("[SCENE]: Processing incoming close agent {0} in region {1} with auth_token {2}", agentID, RegionInfo.RegionName, auth_token);
 
@@ -4628,7 +4625,7 @@ namespace OpenSim.Region.Framework.Scenes
 
             if (acd.SessionID.ToString() == auth_token)
             {
-                return IncomingCloseAgent(agentID, force);
+                return CloseAgent(agentID, force);
             }
             else
             {
@@ -4640,27 +4637,27 @@ namespace OpenSim.Region.Framework.Scenes
             return false;
         }
 
-        public bool IncomingCloseAgent(UUID agentID)
-        {
-            return IncomingCloseAgent(agentID, false);
-        }
+//        public bool IncomingCloseAgent(UUID agentID)
+//        {
+//            return IncomingCloseAgent(agentID, false);
+//        }
 
-        public bool IncomingCloseChildAgent(UUID agentID)
-        {
-            return IncomingCloseAgent(agentID, true);
-        }
+//        public bool IncomingCloseChildAgent(UUID agentID)
+//        {
+//            return IncomingCloseAgent(agentID, true);
+//        }
 
         /// <summary>
-        /// Tell a single agent to prepare to close.
+        /// Tell a single client to prepare to close.
         /// </summary>
         /// <remarks>
-        /// This should only be called if we may close the agent but there will be some delay in so doing.  Meant for
-        /// internal use - other callers should almost certainly called IncomingCloseAgent().
+        /// This should only be called if we may close the client but there will be some delay in so doing.  Meant for
+        /// internal use - other callers should almost certainly called CloseClient().
         /// </remarks>
         /// <param name="sp"></param>
         /// <returns>true if pre-close state notification was successful.  false if the agent
         /// was not in a state where it could transition to pre-close.</returns>
-        public bool IncomingPreCloseAgent(ScenePresence sp)
+        public bool IncomingPreCloseClient(ScenePresence sp)
         {
             lock (m_removeClientLock)
             {
@@ -4702,7 +4699,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// 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)
+        public override bool CloseAgent(UUID agentID, bool force)
         {
             ScenePresence sp;
 
@@ -4713,7 +4710,7 @@ namespace OpenSim.Region.Framework.Scenes
                 if (sp == null)
                 {
                     m_log.DebugFormat(
-                        "[SCENE]: Called IncomingCloseAgent() with agent ID {0} but no such presence is in {1}", 
+                        "[SCENE]: Called CloseClient() with agent ID {0} but no such presence is in {1}", 
                         agentID, Name);
     
                     return false;
@@ -4722,7 +4719,7 @@ namespace OpenSim.Region.Framework.Scenes
                 if (sp.LifecycleState != ScenePresenceState.Running && sp.LifecycleState != ScenePresenceState.PreRemove)
                 {
                     m_log.DebugFormat(
-                        "[SCENE]: Called IncomingCloseAgent() for {0} in {1} but presence is already in state {2}",
+                        "[SCENE]: Called CloseClient() for {0} in {1} but presence is already in state {2}",
                         sp.Name, Name, sp.LifecycleState);
 
                     return false;
diff --git a/OpenSim/Region/Framework/Scenes/SceneBase.cs b/OpenSim/Region/Framework/Scenes/SceneBase.cs
index 1dac676..9354a88 100644
--- a/OpenSim/Region/Framework/Scenes/SceneBase.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneBase.cs
@@ -217,21 +217,9 @@ namespace OpenSim.Region.Framework.Scenes
 
         #region Add/Remove Agent/Avatar
 
-        public abstract ISceneAgent AddNewClient(IClientAPI client, PresenceType type);
+        public abstract ISceneAgent AddNewAgent(IClientAPI client, PresenceType type);
 
-        /// <summary>
-        /// Remove the given client from the scene. 
-        /// </summary>
-        /// <remarks>
-        /// Only clientstack code should call this directly.  All other code should call IncomingCloseAgent() instead
-        /// to properly operate the state machine and avoid race conditions with other close requests (such as directly
-        /// from viewers).
-        /// </remarks>
-        /// <param name='agentID'>ID of agent to close</param>
-        /// <param name='closeChildAgents'>
-        /// Close the neighbour child agents associated with this client.
-        /// </param>
-        public abstract void RemoveClient(UUID agentID, bool closeChildAgents);
+        public abstract bool CloseAgent(UUID agentID, bool force);
 
         public bool TryGetScenePresence(UUID agentID, out object scenePresence)
         {
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index cf03d7c..66b42a1 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -2960,6 +2960,26 @@ namespace OpenSim.Region.Framework.Scenes
                 //ParentGroup.RootPart.m_groupPosition = newpos;
             }
 
+            if (pa != null && ParentID != 0 && ParentGroup != null)
+            {
+                // Special case where a child object is requesting property updates.
+                // This happens when linksets are modified to use flexible links rather than
+                //    the default links.
+                // The simulator code presumes that child parts are only modified by scripts
+                //    so the logic for changing position/rotation/etc does not take into
+                //    account the physical object actually moving.
+                // This code updates the offset position and rotation of the child and then
+                //    lets the update code push the update to the viewer.
+                // Since physics engines do not normally generate this event for linkset children,
+                //    this code will not be active unless you have a specially configured
+                //    physics engine.
+                Quaternion invRootRotation = Quaternion.Normalize(Quaternion.Inverse(ParentGroup.RootPart.RotationOffset));
+                m_offsetPosition = pa.Position - m_groupPosition;
+                RotationOffset = pa.Orientation * invRootRotation;
+                // m_log.DebugFormat("{0} PhysicsRequestingTerseUpdate child: pos={1}, rot={2}, offPos={3}, offRot={4}",
+                //                     "[SCENE OBJECT PART]", pa.Position, pa.Orientation, m_offsetPosition, RotationOffset);
+            }
+
             ScheduleTerseUpdate();
         }
 
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index 183d8d1..9f330fd 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -320,7 +320,21 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         private string m_callbackURI;
 
-        public UUID m_originRegionID;
+        /// <summary>
+        /// Records the region from which this presence originated, if not from login.
+        /// </summary>
+        /// <remarks>
+        /// Also acts as a signal in the teleport V2 process to release UpdateAgent after a viewer has triggered
+        /// CompleteMovement and made the previous child agent a root agent.
+        /// </remarks>
+        private UUID m_originRegionID;
+
+        /// <summary>
+        /// This object is used as a lock before accessing m_originRegionID to make sure that every thread is seeing
+        /// the very latest value and not using some cached version.  Cannot make m_originRegionID itself volatite as
+        /// it is a value type.
+        /// </summary>
+        private object m_originRegionIDAccessLock = new object();
 
         /// <summary>
         /// Used by the entity transfer module to signal when the presence should not be closed because a subsequent
@@ -975,11 +989,11 @@ namespace OpenSim.Region.Framework.Scenes
         /// This method is on the critical path for transferring an avatar from one region to another.  Delay here
         /// delays that crossing.
         /// </summary>
-        public void MakeRootAgent(Vector3 pos, bool isFlying)
+        private void MakeRootAgent(Vector3 pos, bool isFlying)
         {
-            m_log.InfoFormat(
-                "[SCENE]: Upgrading child to root agent for {0} in {1}",
-                Name, m_scene.RegionInfo.RegionName);
+//            m_log.InfoFormat(
+//                "[SCENE]: Upgrading child to root agent for {0} in {1}",
+//                Name, m_scene.RegionInfo.RegionName);
 
             if (ParentUUID != UUID.Zero)
             {
@@ -1545,15 +1559,26 @@ namespace OpenSim.Region.Framework.Scenes
 
         private bool WaitForUpdateAgent(IClientAPI client)
         {
-            // Before UpdateAgent, m_originRegionID is UUID.Zero; after, it's non-Zero
+            // Before the source region executes UpdateAgent
+            // (which triggers Scene.IncomingUpdateChildAgent(AgentData cAgentData) here in the destination, 
+            // m_originRegionID is UUID.Zero; after, it's non-Zero.  The CompleteMovement sequence initiated from the
+            // viewer (in turn triggered by the source region sending it a TeleportFinish event) waits until it's non-zero
             int count = 50;
-            while (m_originRegionID.Equals(UUID.Zero) && count-- > 0)
+            UUID originID;
+
+            lock (m_originRegionIDAccessLock)
+                originID = m_originRegionID;
+
+            while (originID.Equals(UUID.Zero) && count-- > 0)
             {
+                lock (m_originRegionIDAccessLock)
+                    originID = m_originRegionID;
+
                 m_log.DebugFormat("[SCENE PRESENCE]: Agent {0} waiting for update in {1}", client.Name, Scene.Name);
                 Thread.Sleep(200);
             }
 
-            if (m_originRegionID.Equals(UUID.Zero))
+            if (originID.Equals(UUID.Zero))
             {
                 // Movement into region will fail
                 m_log.WarnFormat("[SCENE PRESENCE]: Update agent {0} never arrived in {1}", client.Name, Scene.Name);
@@ -1576,9 +1601,9 @@ namespace OpenSim.Region.Framework.Scenes
         {
 //            DateTime startTime = DateTime.Now;
 
-            m_log.DebugFormat(
+            m_log.InfoFormat(
                 "[SCENE PRESENCE]: Completing movement of {0} into region {1} in position {2}",
-                client.Name, Scene.RegionInfo.RegionName, AbsolutePosition);
+                client.Name, Scene.Name, AbsolutePosition);
 
             // Make sure it's not a login agent. We don't want to wait for updates during login
             if (PresenceType != PresenceType.Npc && (m_teleportFlags & TeleportFlags.ViaLogin) == 0)
@@ -1633,7 +1658,12 @@ namespace OpenSim.Region.Framework.Scenes
                     "[SCENE PRESENCE]: Releasing {0} {1} with callback to {2}",
                     client.Name, client.AgentId, m_callbackURI);
 
-                Scene.SimulationService.ReleaseAgent(m_originRegionID, UUID, m_callbackURI);
+                UUID originID;
+
+                lock (m_originRegionIDAccessLock)
+                    originID = m_originRegionID;
+
+                Scene.SimulationService.ReleaseAgent(originID, UUID, m_callbackURI);
                 m_callbackURI = null;
             }
 //            else
@@ -3089,7 +3119,7 @@ namespace OpenSim.Region.Framework.Scenes
             // If we are using the the cached appearance then send it out to everyone
             if (cachedappearance)
             {
-                m_log.DebugFormat("[SCENE PRESENCE]: baked textures are in the cache for {0}", Name);
+                m_log.DebugFormat("[SCENE PRESENCE]: Baked textures are in the cache for {0} in {1}", Name, m_scene.Name);
 
                 // If the avatars baked textures are all in the cache, then we have a 
                 // complete appearance... send it out, if not, then we'll send it when
@@ -3553,7 +3583,7 @@ namespace OpenSim.Region.Framework.Scenes
 
         #region Child Agent Updates
 
-        public void ChildAgentDataUpdate(AgentData cAgentData)
+        public void UpdateChildAgent(AgentData cAgentData)
         {
 //            m_log.Debug("   >>> ChildAgentDataUpdate <<< " + Scene.RegionInfo.RegionName);
             if (!IsChildAgent)
@@ -3563,15 +3593,17 @@ namespace OpenSim.Region.Framework.Scenes
         }
 
         private static Vector3 marker = new Vector3(-1f, -1f, -1f);
+
         private void RaiseUpdateThrottles()
         {
             m_scene.EventManager.TriggerThrottleUpdate(this);
         }
+
         /// <summary>
         /// This updates important decision making data about a child agent
         /// The main purpose is to figure out what objects to send to a child agent that's in a neighboring region
         /// </summary>
-        public void ChildAgentDataUpdate(AgentPosition cAgentData, uint tRegionX, uint tRegionY, uint rRegionX, uint rRegionY)
+        public void UpdateChildAgent(AgentPosition cAgentData, uint tRegionX, uint tRegionY, uint rRegionX, uint rRegionY)
         {
             if (!IsChildAgent)
                 return;
@@ -3679,7 +3711,8 @@ namespace OpenSim.Region.Framework.Scenes
 
         private void CopyFrom(AgentData cAgent)
         {
-            m_originRegionID = cAgent.RegionID;
+            lock (m_originRegionIDAccessLock)
+                m_originRegionID = cAgent.RegionID;
 
             m_callbackURI = cAgent.CallbackURI;
 //            m_log.DebugFormat(
diff --git a/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs b/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs
index 68918d3..bc51b32 100644
--- a/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs
+++ b/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs
@@ -365,6 +365,7 @@ namespace OpenSim.Region.Framework.Scenes.Serialization
             m_SOPXmlProcessors.Add("CollisionSound", ProcessCollisionSound);
             m_SOPXmlProcessors.Add("CollisionSoundVolume", ProcessCollisionSoundVolume);
             m_SOPXmlProcessors.Add("MediaUrl", ProcessMediaUrl);
+            m_SOPXmlProcessors.Add("AttachedPos", ProcessAttachedPos);
             m_SOPXmlProcessors.Add("DynAttrs", ProcessDynAttrs);
             m_SOPXmlProcessors.Add("TextureAnimation", ProcessTextureAnimation);
             m_SOPXmlProcessors.Add("ParticleSystem", ProcessParticleSystem);
@@ -443,6 +444,7 @@ namespace OpenSim.Region.Framework.Scenes.Serialization
             m_ShapeXmlProcessors.Add("ProfileEnd", ProcessShpProfileEnd);
             m_ShapeXmlProcessors.Add("ProfileHollow", ProcessShpProfileHollow);
             m_ShapeXmlProcessors.Add("Scale", ProcessShpScale);
+            m_ShapeXmlProcessors.Add("LastAttachPoint", ProcessShpLastAttach);
             m_ShapeXmlProcessors.Add("State", ProcessShpState);
             m_ShapeXmlProcessors.Add("ProfileShape", ProcessShpProfileShape);
             m_ShapeXmlProcessors.Add("HollowShape", ProcessShpHollowShape);
@@ -798,6 +800,11 @@ namespace OpenSim.Region.Framework.Scenes.Serialization
             obj.MediaUrl = reader.ReadElementContentAsString("MediaUrl", String.Empty);
         }
 
+        private static void ProcessAttachedPos(SceneObjectPart obj, XmlTextReader reader)
+        {
+            obj.AttachedPos = Util.ReadVector(reader, "AttachedPos");
+        }
+
         private static void ProcessDynAttrs(SceneObjectPart obj, XmlTextReader reader)
         {
             obj.DynAttrs.ReadXml(reader);
@@ -1099,6 +1106,11 @@ namespace OpenSim.Region.Framework.Scenes.Serialization
             shp.State = (byte)reader.ReadElementContentAsInt("State", String.Empty);
         }
 
+        private static void ProcessShpLastAttach(PrimitiveBaseShape shp, XmlTextReader reader)
+        {
+            shp.LastAttachPoint = (byte)reader.ReadElementContentAsInt("LastAttachPoint", String.Empty);
+        }
+
         private static void ProcessShpProfileShape(PrimitiveBaseShape shp, XmlTextReader reader)
         {
             shp.ProfileShape = Util.ReadEnum<ProfileShape>(reader, "ProfileShape");
@@ -1345,6 +1357,7 @@ namespace OpenSim.Region.Framework.Scenes.Serialization
             writer.WriteElementString("CollisionSoundVolume", sop.CollisionSoundVolume.ToString());
             if (sop.MediaUrl != null)
                 writer.WriteElementString("MediaUrl", sop.MediaUrl.ToString());
+            WriteVector(writer, "AttachedPos", sop.AttachedPos);
             
             if (sop.DynAttrs.CountNamespaces > 0)
             {
@@ -1539,6 +1552,7 @@ namespace OpenSim.Region.Framework.Scenes.Serialization
                 writer.WriteElementString("ProfileEnd", shp.ProfileEnd.ToString());
                 writer.WriteElementString("ProfileHollow", shp.ProfileHollow.ToString());
                 writer.WriteElementString("State", shp.State.ToString());
+                writer.WriteElementString("LastAttachPoint", shp.LastAttachPoint.ToString());
 
                 WriteFlags(writer, "ProfileShape", shp.ProfileShape.ToString(), options);
                 WriteFlags(writer, "HollowShape", shp.HollowShape.ToString(), options);
diff --git a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceAgentTests.cs b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceAgentTests.cs
index bbe34d2..d1aeaee 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceAgentTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceAgentTests.cs
@@ -146,7 +146,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
         }
 
         [Test]
-        public void TestCloseAgent()
+        public void TestCloseClient()
         {
             TestHelpers.InMethod();
 //            TestHelpers.EnableLogging();
@@ -154,7 +154,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             TestScene scene = new SceneHelpers().SetupScene();
             ScenePresence sp = SceneHelpers.AddScenePresence(scene, TestHelpers.ParseTail(0x1));
 
-            scene.IncomingCloseAgent(sp.UUID, false);
+            scene.CloseAgent(sp.UUID, false);
 
             Assert.That(scene.GetScenePresence(sp.UUID), Is.Null);
             Assert.That(scene.AuthenticateHandler.GetAgentCircuitData(sp.UUID), Is.Null);
@@ -200,7 +200,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             // *** This is the second stage, where the client established a child agent/scene presence using the
             // circuit code given to the scene in stage 1 ***
             TestClient client = new TestClient(acd, scene);
-            scene.AddNewClient(client, PresenceType.User);
+            scene.AddNewAgent(client, PresenceType.User);
 
             Assert.That(scene.AuthenticateHandler.GetAgentCircuitData(agentId), Is.Not.Null);
             Assert.That(scene.AuthenticateHandler.GetAgentCircuits().Count, Is.EqualTo(1));
@@ -279,7 +279,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
 //            string reason;
 //            scene.NewUserConnection(agent, (uint)TeleportFlags.ViaLogin, out reason);
 //            testclient = new TestClient(agent, scene);
-//            scene.AddNewClient(testclient);
+//            scene.AddNewAgent(testclient);
 //
 //            ScenePresence presence = scene.GetScenePresence(agent1);
 //
diff --git a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCapabilityTests.cs b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCapabilityTests.cs
index 4ae7a8e..9fa0a71 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCapabilityTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCapabilityTests.cs
@@ -79,8 +79,10 @@ namespace OpenSim.Region.Framework.Scenes.Tests
 
             // TODO: Need to add tests for other ICapabiltiesModule methods.
 
-            scene.IncomingCloseAgent(sp.UUID, false);
-            //Assert.That(capsMod.GetCapsForUser(spUuid), Is.Null);
+//            scene.IncomingCloseAgent(sp.UUID, false);
+//            //Assert.That(capsMod.GetCapsForUser(spUuid), Is.Null);
+            scene.CloseAgent(sp.UUID, false);
+//            Assert.That(capsMod.GetCapsForUser(spUuid), Is.Null);
 
             // TODO: Need to add tests for other ICapabiltiesModule methods.
         }
diff --git a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs
index 12a778b..b806a97 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs
@@ -38,6 +38,7 @@ using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.CoreModules.Framework;
 using OpenSim.Region.CoreModules.Framework.EntityTransfer;
 using OpenSim.Region.CoreModules.ServiceConnectorsOut.Simulation;
+using OpenSim.Region.CoreModules.World.Permissions;
 using OpenSim.Tests.Common;
 using OpenSim.Tests.Common.Mock;
 
@@ -159,5 +160,90 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             Assert.That(agentMovementCompleteReceived, Is.EqualTo(1));
             Assert.That(spAfterCrossSceneB.IsChildAgent, Is.False);
         }
+
+        /// <summary>
+        /// Test a cross attempt where the user can see into the neighbour but does not have permission to become
+        /// root there.
+        /// </summary>
+        [Test]
+        public void TestCrossOnSameSimulatorNoRootDestPerm()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            UUID userId = TestHelpers.ParseTail(0x1);
+
+            EntityTransferModule etmA = new EntityTransferModule();
+            EntityTransferModule etmB = new EntityTransferModule();
+            LocalSimulationConnectorModule lscm = new LocalSimulationConnectorModule();
+
+            IConfigSource config = new IniConfigSource();
+            IConfig modulesConfig = config.AddConfig("Modules");
+            modulesConfig.Set("EntityTransferModule", etmA.Name);
+            modulesConfig.Set("SimulationServices", lscm.Name);
+
+            SceneHelpers sh = new SceneHelpers();
+            TestScene sceneA = sh.SetupScene("sceneA", TestHelpers.ParseTail(0x100), 1000, 1000);
+            TestScene sceneB = sh.SetupScene("sceneB", TestHelpers.ParseTail(0x200), 1000, 999);
+
+            SceneHelpers.SetupSceneModules(new Scene[] { sceneA, sceneB }, config, lscm);
+            SceneHelpers.SetupSceneModules(sceneA, config, new CapabilitiesModule(), etmA);
+
+            // We need to set up the permisions module on scene B so that our later use of agent limit to deny
+            // QueryAccess won't succeed anyway because administrators are always allowed in and the default
+            // IsAdministrator if no permissions module is present is true.
+//            SceneHelpers.SetupSceneModules(sceneB, config, new CapabilitiesModule(), new PermissionsModule(), etmB);
+
+            AgentCircuitData acd = SceneHelpers.GenerateAgentData(userId);
+            TestClient tc = new TestClient(acd, sceneA);
+            List<TestClient> destinationTestClients = new List<TestClient>();
+            EntityTransferHelpers.SetupInformClientOfNeighbourTriggersNeighbourClientCreate(tc, destinationTestClients);
+
+            // Make sure sceneB will not accept this avatar.
+            sceneB.RegionInfo.EstateSettings.PublicAccess = false;
+
+            ScenePresence originalSp = SceneHelpers.AddScenePresence(sceneA, tc, acd);
+            originalSp.AbsolutePosition = new Vector3(128, 32, 10);
+
+            AgentUpdateArgs moveArgs = new AgentUpdateArgs();
+            //moveArgs.BodyRotation = Quaternion.CreateFromEulers(Vector3.Zero);
+            moveArgs.BodyRotation = Quaternion.CreateFromEulers(new Vector3(0, 0, (float)-(Math.PI / 2)));
+            moveArgs.ControlFlags = (uint)AgentManager.ControlFlags.AGENT_CONTROL_AT_POS;
+            moveArgs.SessionID = acd.SessionID;
+
+            originalSp.HandleAgentUpdate(originalSp.ControllingClient, moveArgs);
+
+            sceneA.Update(1);
+
+//            Console.WriteLine("Second pos {0}", originalSp.AbsolutePosition);
+
+            // FIXME: This is a sufficient number of updates to for the presence to reach the northern border.
+            // But really we want to do this in a more robust way.
+            for (int i = 0; i < 100; i++)
+            {
+                sceneA.Update(1);
+//                Console.WriteLine("Pos {0}", originalSp.AbsolutePosition);
+            }
+
+            // sceneA agent should still be root
+            ScenePresence spAfterCrossSceneA = sceneA.GetScenePresence(originalSp.UUID);
+            Assert.That(spAfterCrossSceneA.IsChildAgent, Is.False);
+
+            ScenePresence spAfterCrossSceneB = sceneB.GetScenePresence(originalSp.UUID);
+
+            // sceneB agent should also still be root
+            Assert.That(spAfterCrossSceneB.IsChildAgent, Is.True);
+
+            // sceneB should ignore unauthorized attempt to upgrade agent to root
+            TestClient sceneBTc = ((TestClient)spAfterCrossSceneB.ControllingClient);
+
+            int agentMovementCompleteReceived = 0;
+            sceneBTc.OnReceivedMoveAgentIntoRegion += (ri, pos, look) => agentMovementCompleteReceived++;
+
+            sceneBTc.CompleteMovement();
+
+            Assert.That(agentMovementCompleteReceived, Is.EqualTo(0));
+            Assert.That(spAfterCrossSceneB.IsChildAgent, Is.True);
+        }
     }
-}
\ No newline at end of file
+}
diff --git a/OpenSim/Region/Framework/Scenes/UuidGatherer.cs b/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
index e60a025..84e410f 100644
--- a/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
+++ b/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
@@ -168,7 +168,20 @@ namespace OpenSim.Region.Framework.Scenes
                     // If the prim is a sculpt then preserve this information too
                     if (part.Shape.SculptTexture != UUID.Zero)
                         assetUuids[part.Shape.SculptTexture] = AssetType.Texture;
-                    
+
+                    if (part.Shape.ProjectionTextureUUID != UUID.Zero)
+                        assetUuids[part.Shape.ProjectionTextureUUID] = AssetType.Texture;
+
+                    if (part.CollisionSound != UUID.Zero)
+                        assetUuids[part.CollisionSound] = AssetType.Sound;
+
+                    if (part.ParticleSystem.Length > 0)
+                    {
+                        Primitive.ParticleSystem ps = new Primitive.ParticleSystem(part.ParticleSystem, 0);
+                        if (ps.Texture != UUID.Zero)
+                            assetUuids[ps.Texture] = AssetType.Texture;
+                    }
+
                     TaskInventoryDictionary taskDictionary = (TaskInventoryDictionary)part.TaskInventory.Clone();
                     
                     // Now analyze this prim's inventory items to preserve all the uuids that they reference
diff --git a/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs b/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs
index a96c8b4..373ed41 100644
--- a/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs
+++ b/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs
@@ -908,7 +908,7 @@ namespace OpenSim.Region.OptionalModules.Agent.InternetRelayClientView.Server
 
         public void Start()
         {
-            m_scene.AddNewClient(this, PresenceType.User);
+            m_scene.AddNewAgent(this, PresenceType.User);
 
             // Mimicking LLClientView which gets always set appearance from client.
             AvatarAppearance appearance;
diff --git a/OpenSim/Region/OptionalModules/Scripting/ExtendedPhysics/ExtendedPhysics.cs b/OpenSim/Region/OptionalModules/Scripting/ExtendedPhysics/ExtendedPhysics.cs
index d1d318c..9daf9d7 100755
--- a/OpenSim/Region/OptionalModules/Scripting/ExtendedPhysics/ExtendedPhysics.cs
+++ b/OpenSim/Region/OptionalModules/Scripting/ExtendedPhysics/ExtendedPhysics.cs
@@ -29,12 +29,14 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
 using System.Text;
+using System.Threading;
 
 using OpenSim.Framework;
 using OpenSim.Region.CoreModules;
 using OpenSim.Region.Framework;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.Physics.Manager;
 
 using Mono.Addins;
 using Nini.Config;
@@ -60,6 +62,10 @@ public class ExtendedPhysics : INonSharedRegionModule
     // Per prim functions. See BSPrim.
     public const string PhysFunctGetLinksetType = "BulletSim.GetLinksetType";
     public const string PhysFunctSetLinksetType = "BulletSim.SetLinksetType";
+    public const string PhysFunctChangeLinkFixed = "BulletSim.ChangeLinkFixed";
+    public const string PhysFunctChangeLinkType = "BulletSim.ChangeLinkType";
+    public const string PhysFunctGetLinkType = "BulletSim.GetLinkType";
+    public const string PhysFunctChangeLinkParams = "BulletSim.ChangeLinkParams";
 
     // =============================================================
 
@@ -155,7 +161,7 @@ public class ExtendedPhysics : INonSharedRegionModule
     }
 
     [ScriptConstant]
-    public static int PHYS_CENTER_OF_MASS =     1 << 0;
+    public const int PHYS_CENTER_OF_MASS =     1 << 0;
 
     [ScriptInvocation]
     public string physGetEngineType(UUID hostID, UUID scriptID)
@@ -171,11 +177,11 @@ public class ExtendedPhysics : INonSharedRegionModule
     }
 
     [ScriptConstant]
-    public static int PHYS_LINKSET_TYPE_CONSTRAINT  = 0;
+    public const int PHYS_LINKSET_TYPE_CONSTRAINT  = 0;
     [ScriptConstant]
-    public static int PHYS_LINKSET_TYPE_COMPOUND    = 1;
+    public const int PHYS_LINKSET_TYPE_COMPOUND    = 1;
     [ScriptConstant]
-    public static int PHYS_LINKSET_TYPE_MANUAL      = 2;
+    public const int PHYS_LINKSET_TYPE_MANUAL      = 2;
 
     [ScriptInvocation]
     public int physSetLinksetType(UUID hostID, UUID scriptID, int linksetType)
@@ -195,10 +201,38 @@ public class ExtendedPhysics : INonSharedRegionModule
 
             if (rootPart != null)
             {
-                Physics.Manager.PhysicsActor rootPhysActor = rootPart.PhysActor;
+                PhysicsActor rootPhysActor = rootPart.PhysActor;
                 if (rootPhysActor != null)
                 {
-                    ret = (int)rootPhysActor.Extension(PhysFunctSetLinksetType, linksetType);
+                    if (rootPhysActor.IsPhysical)
+                    {
+                        // Change a physical linkset by making non-physical, waiting for one heartbeat so all
+                        //    the prim and linkset state is updated, changing the type and making the
+                        //    linkset physical again.
+                        containingGroup.ScriptSetPhysicsStatus(false);
+                        Thread.Sleep(150);  // longer than one heartbeat tick
+
+                        // A kludge for the moment.
+                        // Since compound linksets move the children but don't generate position updates to the
+                        //     simulator, it is possible for compound linkset children to have out-of-sync simulator
+                        //     and physical positions. The following causes the simulator to push the real child positions
+                        //     down into the physics engine to get everything synced.
+                        containingGroup.UpdateGroupPosition(containingGroup.AbsolutePosition);
+                        containingGroup.UpdateGroupRotationR(containingGroup.GroupRotation);
+
+                        object[] parms2 = { rootPhysActor, null, linksetType };
+                        ret = MakeIntError(rootPhysActor.Extension(PhysFunctSetLinksetType, parms2));
+                        Thread.Sleep(150);  // longer than one heartbeat tick
+
+                        containingGroup.ScriptSetPhysicsStatus(true);
+                    }
+                    else
+                    {
+                        // Non-physical linksets don't have a physical instantiation so there is no state to
+                        //    worry about being updated.
+                        object[] parms2 = { rootPhysActor, null, linksetType };
+                        ret = MakeIntError(rootPhysActor.Extension(PhysFunctSetLinksetType, parms2));
+                    }
                 }
                 else
                 {
@@ -223,7 +257,6 @@ public class ExtendedPhysics : INonSharedRegionModule
     public int physGetLinksetType(UUID hostID, UUID scriptID)
     {
         int ret = -1;
-
         if (!Enabled) return ret;
 
         // The part that is requesting the change.
@@ -237,10 +270,11 @@ public class ExtendedPhysics : INonSharedRegionModule
 
             if (rootPart != null)
             {
-                Physics.Manager.PhysicsActor rootPhysActor = rootPart.PhysActor;
+                PhysicsActor rootPhysActor = rootPart.PhysActor;
                 if (rootPhysActor != null)
                 {
-                    ret = (int)rootPhysActor.Extension(PhysFunctGetLinksetType);
+                    object[] parms2 = { rootPhysActor, null };
+                    ret = MakeIntError(rootPhysActor.Extension(PhysFunctGetLinksetType, parms2));
                 }
                 else
                 {
@@ -260,5 +294,288 @@ public class ExtendedPhysics : INonSharedRegionModule
         }
         return ret;
     }
+
+    [ScriptConstant]
+    public const int PHYS_LINK_TYPE_FIXED  = 1234;
+    [ScriptConstant]
+    public const int PHYS_LINK_TYPE_HINGE  = 4;
+    [ScriptConstant]
+    public const int PHYS_LINK_TYPE_SPRING = 9;
+    [ScriptConstant]
+    public const int PHYS_LINK_TYPE_6DOF   = 6;
+    [ScriptConstant]
+    public const int PHYS_LINK_TYPE_SLIDER = 7;
+
+    // physChangeLinkType(integer linkNum, integer typeCode)
+    [ScriptInvocation]
+    public int physChangeLinkType(UUID hostID, UUID scriptID, int linkNum, int typeCode)
+    {
+        int ret = -1;
+        if (!Enabled) return ret;
+
+        PhysicsActor rootPhysActor;
+        PhysicsActor childPhysActor;
+
+        if (GetRootAndChildPhysActors(hostID, linkNum, out rootPhysActor, out childPhysActor))
+        {
+            object[] parms2 = { rootPhysActor, childPhysActor, typeCode };
+            ret = MakeIntError(rootPhysActor.Extension(PhysFunctChangeLinkType, parms2));
+        }
+
+        return ret;
+    }
+
+    // physGetLinkType(integer linkNum)
+    [ScriptInvocation]
+    public int physGetLinkType(UUID hostID, UUID scriptID, int linkNum)
+    {
+        int ret = -1;
+        if (!Enabled) return ret;
+
+        PhysicsActor rootPhysActor;
+        PhysicsActor childPhysActor;
+
+        if (GetRootAndChildPhysActors(hostID, linkNum, out rootPhysActor, out childPhysActor))
+        {
+            object[] parms2 = { rootPhysActor, childPhysActor };
+            ret = MakeIntError(rootPhysActor.Extension(PhysFunctGetLinkType, parms2));
+        }
+
+        return ret;
+    }
+
+    // physChangeLinkFixed(integer linkNum)
+    // Change the link between the root and the linkNum into a fixed, static physical connection.
+    [ScriptInvocation]
+    public int physChangeLinkFixed(UUID hostID, UUID scriptID, int linkNum)
+    {
+        int ret = -1;
+        if (!Enabled) return ret;
+
+        PhysicsActor rootPhysActor;
+        PhysicsActor childPhysActor;
+
+        if (GetRootAndChildPhysActors(hostID, linkNum, out rootPhysActor, out childPhysActor))
+        {
+            object[] parms2 = { rootPhysActor, childPhysActor , PHYS_LINK_TYPE_FIXED };
+            ret = MakeIntError(rootPhysActor.Extension(PhysFunctChangeLinkType, parms2));
+        }
+
+        return ret;
+    }
+
+    // Code for specifying params.
+    // The choice if 14400 is arbitrary and only serves to catch parameter code misuse.
+    public const int PHYS_PARAM_MIN                    = 14401;
+
+    [ScriptConstant]
+    public const int PHYS_PARAM_FRAMEINA_LOC           = 14401;
+    [ScriptConstant]
+    public const int PHYS_PARAM_FRAMEINA_ROT           = 14402;
+    [ScriptConstant]
+    public const int PHYS_PARAM_FRAMEINB_LOC           = 14403;
+    [ScriptConstant]
+    public const int PHYS_PARAM_FRAMEINB_ROT           = 14404;
+    [ScriptConstant]
+    public const int PHYS_PARAM_LINEAR_LIMIT_LOW       = 14405;
+    [ScriptConstant]
+    public const int PHYS_PARAM_LINEAR_LIMIT_HIGH      = 14406;
+    [ScriptConstant]
+    public const int PHYS_PARAM_ANGULAR_LIMIT_LOW      = 14407;
+    [ScriptConstant]
+    public const int PHYS_PARAM_ANGULAR_LIMIT_HIGH     = 14408;
+    [ScriptConstant]
+    public const int PHYS_PARAM_USE_FRAME_OFFSET       = 14409;
+    [ScriptConstant]
+    public const int PHYS_PARAM_ENABLE_TRANSMOTOR      = 14410;
+    [ScriptConstant]
+    public const int PHYS_PARAM_TRANSMOTOR_MAXVEL      = 14411;
+    [ScriptConstant]
+    public const int PHYS_PARAM_TRANSMOTOR_MAXFORCE    = 14412;
+    [ScriptConstant]
+    public const int PHYS_PARAM_CFM                    = 14413;
+    [ScriptConstant]
+    public const int PHYS_PARAM_ERP                    = 14414;
+    [ScriptConstant]
+    public const int PHYS_PARAM_SOLVER_ITERATIONS      = 14415;
+    [ScriptConstant]
+    public const int PHYS_PARAM_SPRING_AXIS_ENABLE     = 14416;
+    [ScriptConstant]
+    public const int PHYS_PARAM_SPRING_DAMPING         = 14417;
+    [ScriptConstant]
+    public const int PHYS_PARAM_SPRING_STIFFNESS       = 14418;
+    [ScriptConstant]
+    public const int PHYS_PARAM_LINK_TYPE              = 14419;
+    [ScriptConstant]
+    public const int PHYS_PARAM_USE_LINEAR_FRAMEA      = 14420;
+    [ScriptConstant]
+    public const int PHYS_PARAM_SPRING_EQUILIBRIUM_POINT = 14421;
+
+    public const int PHYS_PARAM_MAX                    = 14421;
+
+    // Used when specifying a parameter that has settings for the three linear and three angular axis
+    [ScriptConstant]
+    public const int PHYS_AXIS_ALL = -1;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LINEAR_ALL = -2;
+    [ScriptConstant]
+    public const int PHYS_AXIS_ANGULAR_ALL = -3;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LINEAR_X  = 0;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LINEAR_Y  = 1;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LINEAR_Z  = 2;
+    [ScriptConstant]
+    public const int PHYS_AXIS_ANGULAR_X = 3;
+    [ScriptConstant]
+    public const int PHYS_AXIS_ANGULAR_Y = 4;
+    [ScriptConstant]
+    public const int PHYS_AXIS_ANGULAR_Z = 5;
+
+    // physChangeLinkParams(integer linkNum, [ PHYS_PARAM_*, value, PHYS_PARAM_*, value, ...])
+    [ScriptInvocation]
+    public int physChangeLinkParams(UUID hostID, UUID scriptID, int linkNum, object[] parms)
+    {
+        int ret = -1;
+        if (!Enabled) return ret;
+
+        PhysicsActor rootPhysActor;
+        PhysicsActor childPhysActor;
+
+        if (GetRootAndChildPhysActors(hostID, linkNum, out rootPhysActor, out childPhysActor))
+        {
+            object[] parms2 = AddToBeginningOfArray(rootPhysActor, childPhysActor, parms);
+            ret = MakeIntError(rootPhysActor.Extension(PhysFunctChangeLinkParams, parms2));
+        }
+
+        return ret;
+    }
+
+    private bool GetRootPhysActor(UUID hostID, out PhysicsActor rootPhysActor)
+    {
+        SceneObjectGroup containingGroup;
+        SceneObjectPart rootPart;
+        return GetRootPhysActor(hostID, out containingGroup, out rootPart, out rootPhysActor);
+    }
+
+    private bool GetRootPhysActor(UUID hostID, out SceneObjectGroup containingGroup, out SceneObjectPart rootPart, out PhysicsActor rootPhysActor)
+    {
+        bool ret = false;
+        rootPhysActor = null;
+        containingGroup = null;
+        rootPart = null;
+
+        SceneObjectPart requestingPart;
+
+        requestingPart = BaseScene.GetSceneObjectPart(hostID);
+        if (requestingPart != null)
+        {
+            // The type is is always on the root of a linkset.
+            containingGroup = requestingPart.ParentGroup;
+            if (containingGroup != null && !containingGroup.IsDeleted)
+            {
+                rootPart = containingGroup.RootPart;
+                if (rootPart != null)
+                {
+                    rootPhysActor = rootPart.PhysActor;
+                    if (rootPhysActor != null)
+                    {
+                        ret = true;
+                    }
+                    else
+                    {
+                        m_log.WarnFormat("{0} GetRootAndChildPhysActors: Root part does not have a physics actor. rootName={1}, hostID={2}",
+                                        LogHeader, rootPart.Name, hostID);
+                    }
+                }
+                else
+                {
+                    m_log.WarnFormat("{0} GetRootAndChildPhysActors: Root part does not exist. RequestingPartName={1}, hostID={2}",
+                                    LogHeader, requestingPart.Name, hostID);
+                }
+            }
+            else
+            {
+                m_log.WarnFormat("{0} GetRootAndChildPhysActors: Containing group missing or deleted. hostID={1}", LogHeader, hostID);
+            }
+        }
+        else
+        {
+            m_log.WarnFormat("{0} GetRootAndChildPhysActors: cannot find script object in scene. hostID={1}", LogHeader, hostID);
+        }
+
+        return ret;
+    }
+
+    // Find the root and child PhysActors based on the linkNum.
+    // Return 'true' if both are found and returned.
+    private bool GetRootAndChildPhysActors(UUID hostID, int linkNum, out PhysicsActor rootPhysActor, out PhysicsActor childPhysActor)
+    {
+        bool ret = false;
+        rootPhysActor = null;
+        childPhysActor = null;
+
+        SceneObjectGroup containingGroup;
+        SceneObjectPart rootPart;
+
+        if (GetRootPhysActor(hostID, out containingGroup, out rootPart, out rootPhysActor))
+        {
+            SceneObjectPart linkPart = containingGroup.GetLinkNumPart(linkNum);
+            if (linkPart != null)
+            {
+                childPhysActor = linkPart.PhysActor;
+                if (childPhysActor != null)
+                {
+                    ret = true;
+                }
+                else
+                {
+                    m_log.WarnFormat("{0} GetRootAndChildPhysActors: Link part has no physical actor. rootName={1}, hostID={2}, linknum={3}",
+                                        LogHeader, rootPart.Name, hostID, linkNum);
+                }
+            }
+            else
+            {
+                m_log.WarnFormat("{0} GetRootAndChildPhysActors: Could not find linknum part. rootName={1}, hostID={2}, linknum={3}",
+                                    LogHeader, rootPart.Name, hostID, linkNum);
+            }
+        }
+        else
+        {
+            m_log.WarnFormat("{0} GetRootAndChildPhysActors: Root part does not have a physics actor. rootName={1}, hostID={2}",
+                            LogHeader, rootPart.Name, hostID);
+        }
+
+        return ret;
+    }
+
+    // Return an array of objects with the passed object as the first object of a new array
+    private object[] AddToBeginningOfArray(object firstOne, object secondOne, object[] prevArray)
+    {
+        object[] newArray = new object[2 + prevArray.Length];
+        newArray[0] = firstOne;
+        newArray[1] = secondOne;
+        prevArray.CopyTo(newArray, 2);
+        return newArray;
+    }
+
+    // Extension() returns an object. Convert that object into the integer error we expect to return.
+    private int MakeIntError(object extensionRet)
+    {
+        int ret = -1;
+        if (extensionRet != null)
+        {
+            try
+            {
+                ret = (int)extensionRet;
+            }
+            catch
+            {
+                ret = -1;
+            }
+        }
+        return ret;
+    }
 }
 }
diff --git a/OpenSim/Region/OptionalModules/World/NPC/NPCModule.cs b/OpenSim/Region/OptionalModules/World/NPC/NPCModule.cs
index 78fe096..9ec4740 100644
--- a/OpenSim/Region/OptionalModules/World/NPC/NPCModule.cs
+++ b/OpenSim/Region/OptionalModules/World/NPC/NPCModule.cs
@@ -176,7 +176,7 @@ namespace OpenSim.Region.OptionalModules.World.NPC
                 lock (m_avatars)
                 {
                     scene.AuthenticateHandler.AddNewCircuit(npcAvatar.CircuitCode, acd);
-                    scene.AddNewClient(npcAvatar, PresenceType.Npc);
+                    scene.AddNewAgent(npcAvatar, PresenceType.Npc);
 
                     ScenePresence sp;
                     if (scene.TryGetScenePresence(npcAvatar.AgentId, out sp))
@@ -207,8 +207,9 @@ namespace OpenSim.Region.OptionalModules.World.NPC
                     if (scene.TryGetScenePresence(agentID, out sp))
                     {
 //                        m_log.DebugFormat(
-//                            "[NPC MODULE]: Moving {0} to {1} in {2}, noFly {3}, landAtTarget {4}",
-//                            sp.Name, pos, scene.RegionInfo.RegionName, noFly, landAtTarget);
+//                                "[NPC MODULE]: Moving {0} to {1} in {2}, noFly {3}, landAtTarget {4}",
+//                                sp.Name, pos, scene.RegionInfo.RegionName,
+//                                noFly, landAtTarget);
 
                         sp.MoveToTarget(pos, noFly, landAtTarget);
                         sp.SetAlwaysRun = running;
@@ -285,9 +286,7 @@ namespace OpenSim.Region.OptionalModules.World.NPC
                     ScenePresence sp;
                     if (scene.TryGetScenePresence(agentID, out sp))
                     {
-                        sp.HandleAgentRequestSit(m_avatars[agentID], agentID,
-                                partID, Vector3.Zero);
-                        //sp.HandleAgentSit(m_avatars[agentID], agentID);
+                        sp.HandleAgentRequestSit(m_avatars[agentID], agentID, partID, Vector3.Zero);
 
                         return true;
                     }
@@ -378,11 +377,14 @@ namespace OpenSim.Region.OptionalModules.World.NPC
                             agentID, av.Name);
                     */
 
-                    scene.IncomingCloseAgent(agentID, false);
-//                    scene.RemoveClient(agentID, false);
+                    scene.CloseAgent(agentID, false);
+
                     m_avatars.Remove(agentID);
 
-//                    m_log.DebugFormat("[NPC MODULE]: Removed NPC {0} {1}", agentID, av.Name);
+                    /*
+                    m_log.DebugFormat("[NPC MODULE]: Removed NPC {0} {1}",
+                            agentID, av.Name);
+                    */
                     return true;
                 }
             }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSAPIUnman.cs b/OpenSim/Region/Physics/BulletSPlugin/BSAPIUnman.cs
index 12a0c17..3bd81d4 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSAPIUnman.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSAPIUnman.cs
@@ -596,6 +596,60 @@ public override bool SetBreakingImpulseThreshold(BulletConstraint constrain, flo
     return BSAPICPP.SetBreakingImpulseThreshold2(constrainu.ptr, threshold);
 }
 
+public override bool HingeSetLimits(BulletConstraint constrain, float low, float high, float softness, float bias, float relaxation)
+{
+    BulletConstraintUnman constrainu = constrain as BulletConstraintUnman;
+    return BSAPICPP.HingeSetLimits2(constrainu.ptr, low, high, softness, bias, relaxation);
+}
+
+public override bool SpringEnable(BulletConstraint constrain, int index, float numericTrueFalse)
+{
+    BulletConstraintUnman constrainu = constrain as BulletConstraintUnman;
+    return BSAPICPP.ConstraintSpringEnable2(constrainu.ptr, index, numericTrueFalse);
+}
+
+public override bool SpringSetEquilibriumPoint(BulletConstraint constrain, int index, float equilibriumPoint)
+{
+    BulletConstraintUnman constrainu = constrain as BulletConstraintUnman;
+    return BSAPICPP.ConstraintSpringSetEquilibriumPoint2(constrainu.ptr, index, equilibriumPoint);
+}
+
+public override bool SpringSetStiffness(BulletConstraint constrain, int index, float stiffnesss)
+{
+    BulletConstraintUnman constrainu = constrain as BulletConstraintUnman;
+    return BSAPICPP.ConstraintSpringSetStiffness2(constrainu.ptr, index, stiffnesss);
+}
+
+public override bool SpringSetDamping(BulletConstraint constrain, int index, float damping)
+{
+    BulletConstraintUnman constrainu = constrain as BulletConstraintUnman;
+    return BSAPICPP.ConstraintSpringSetDamping2(constrainu.ptr, index, damping);
+}
+
+public override bool SliderSetLimits(BulletConstraint constrain, int lowerUpper, int linAng, float val)
+{
+    BulletConstraintUnman constrainu = constrain as BulletConstraintUnman;
+    return BSAPICPP.SliderSetLimits2(constrainu.ptr, lowerUpper, linAng, val);
+}
+
+public override bool SliderSet(BulletConstraint constrain, int softRestDamp, int dirLimOrtho, int linAng, float val)
+{
+    BulletConstraintUnman constrainu = constrain as BulletConstraintUnman;
+    return BSAPICPP.SliderSet2(constrainu.ptr, softRestDamp, dirLimOrtho, linAng, val);
+}
+
+public override bool SliderMotorEnable(BulletConstraint constrain, int linAng, float numericTrueFalse)
+{
+    BulletConstraintUnman constrainu = constrain as BulletConstraintUnman;
+    return BSAPICPP.SliderMotorEnable2(constrainu.ptr, linAng, numericTrueFalse);
+}
+
+public override bool SliderMotor(BulletConstraint constrain, int forceVel, int linAng, float val)
+{
+    BulletConstraintUnman constrainu = constrain as BulletConstraintUnman;
+    return BSAPICPP.SliderMotor2(constrainu.ptr, forceVel, linAng, val);
+}
+
 public override bool CalculateTransforms(BulletConstraint constrain)
 {
     BulletConstraintUnman constrainu = constrain as BulletConstraintUnman;
@@ -671,6 +725,13 @@ public override bool RemoveObjectFromWorld(BulletWorld world, BulletBody obj)
     return BSAPICPP.RemoveObjectFromWorld2(worldu.ptr, bodyu.ptr);
 }
 
+public override bool ClearCollisionProxyCache(BulletWorld world, BulletBody obj)
+{
+    BulletWorldUnman worldu = world as BulletWorldUnman;
+    BulletBodyUnman bodyu = obj as BulletBodyUnman;
+    return BSAPICPP.ClearCollisionProxyCache2(worldu.ptr, bodyu.ptr);
+}
+
 public override bool AddConstraintToWorld(BulletWorld world, BulletConstraint constrain, bool disableCollisionsBetweenLinkedObjects)
 {
     BulletWorldUnman worldu = world as BulletWorldUnman;
@@ -1601,6 +1662,33 @@ public static extern bool TranslationalLimitMotor2(IntPtr constrain, float enabl
 public static extern bool SetBreakingImpulseThreshold2(IntPtr constrain, float threshold);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool HingeSetLimits2(IntPtr constrain, float low, float high, float softness, float bias, float relaxation);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool ConstraintSpringEnable2(IntPtr constrain, int index, float numericTrueFalse);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool ConstraintSpringSetEquilibriumPoint2(IntPtr constrain, int index, float equilibriumPoint);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool ConstraintSpringSetStiffness2(IntPtr constrain, int index, float stiffness);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool ConstraintSpringSetDamping2(IntPtr constrain, int index, float damping);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool SliderSetLimits2(IntPtr constrain, int lowerUpper, int linAng, float val);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool SliderSet2(IntPtr constrain, int softRestDamp, int dirLimOrtho, int linAng, float val);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool SliderMotorEnable2(IntPtr constrain, int linAng, float numericTrueFalse);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool SliderMotor2(IntPtr constrain, int forceVel, int linAng, float val);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern bool CalculateTransforms2(IntPtr constrain);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
@@ -1632,6 +1720,9 @@ public static extern bool AddObjectToWorld2(IntPtr world, IntPtr obj);
 public static extern bool RemoveObjectFromWorld2(IntPtr world, IntPtr obj);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern bool ClearCollisionProxyCache2(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]
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSAPIXNA.cs b/OpenSim/Region/Physics/BulletSPlugin/BSAPIXNA.cs
index 2a820be..17ebed2 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSAPIXNA.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSAPIXNA.cs
@@ -169,6 +169,19 @@ private sealed class BulletConstraintXNA : BulletConstraint
         return true;
     }
 
+    public override bool ClearCollisionProxyCache(BulletWorld pWorld, BulletBody pBody)
+    {
+        DiscreteDynamicsWorld world = (pWorld as BulletWorldXNA).world;
+        RigidBody body = ((BulletBodyXNA)pBody).rigidBody;
+        CollisionObject collisionObject = ((BulletBodyXNA)pBody).body;
+        if (body != null && collisionObject != null && collisionObject.GetBroadphaseHandle() != null)
+        {
+            world.RemoveCollisionObject(collisionObject);
+            world.AddCollisionObject(collisionObject);
+        }
+        return true;
+    }
+
     public override bool AddConstraintToWorld(BulletWorld pWorld, BulletConstraint pConstraint, bool pDisableCollisionsBetweenLinkedObjects)
     {
         DiscreteDynamicsWorld world = (pWorld as BulletWorldXNA).world;
@@ -752,6 +765,214 @@ private sealed class BulletConstraintXNA : BulletConstraint
         constraint.SetBreakingImpulseThreshold(threshold);
         return true;
     }
+    public override bool HingeSetLimits(BulletConstraint pConstraint, float low, float high, float softness, float bias, float relaxation)
+    {
+        HingeConstraint constraint = (pConstraint as BulletConstraintXNA).constrain as HingeConstraint;
+        if (softness == HINGE_NOT_SPECIFIED)
+            constraint.SetLimit(low, high);
+        else
+            constraint.SetLimit(low, high, softness, bias, relaxation);
+        return true;
+    }
+    public override bool SpringEnable(BulletConstraint pConstraint, int index, float numericTrueFalse)
+    {
+        Generic6DofSpringConstraint constraint = (pConstraint as BulletConstraintXNA).constrain as Generic6DofSpringConstraint;
+        constraint.EnableSpring(index, (numericTrueFalse == 0f ? false : true));
+        return true;
+    }
+
+    public override bool SpringSetEquilibriumPoint(BulletConstraint pConstraint, int index, float equilibriumPoint)
+    {
+        Generic6DofSpringConstraint constraint = (pConstraint as BulletConstraintXNA).constrain as Generic6DofSpringConstraint;
+        if (index == SPRING_NOT_SPECIFIED)
+        {
+            constraint.SetEquilibriumPoint();
+        }
+        else
+        {
+            if (equilibriumPoint == SPRING_NOT_SPECIFIED)
+                constraint.SetEquilibriumPoint(index);
+            else
+                constraint.SetEquilibriumPoint(index, equilibriumPoint);
+        }
+        return true;
+    }
+
+    public override bool SpringSetStiffness(BulletConstraint pConstraint, int index, float stiffness)
+    {
+        Generic6DofSpringConstraint constraint = (pConstraint as BulletConstraintXNA).constrain as Generic6DofSpringConstraint;
+        constraint.SetStiffness(index, stiffness);
+        return true;
+    }
+
+    public override bool SpringSetDamping(BulletConstraint pConstraint, int index, float damping)
+    {
+        Generic6DofSpringConstraint constraint = (pConstraint as BulletConstraintXNA).constrain as Generic6DofSpringConstraint;
+        constraint.SetDamping(index, damping);
+        return true;
+    }
+
+    public override bool SliderSetLimits(BulletConstraint pConstraint, int lowerUpper, int linAng, float val)
+    {
+        SliderConstraint constraint = (pConstraint as BulletConstraintXNA).constrain as SliderConstraint;
+                switch (lowerUpper)
+                {
+                        case SLIDER_LOWER_LIMIT:
+                                switch (linAng)
+                                {
+                                        case SLIDER_LINEAR:
+                                                constraint.SetLowerLinLimit(val);
+                                                break;
+                                        case SLIDER_ANGULAR:
+                                                constraint.SetLowerAngLimit(val);
+                                                break;
+                                }
+                                break;
+                        case SLIDER_UPPER_LIMIT:
+                                switch (linAng)
+                                {
+                                        case SLIDER_LINEAR:
+                                                constraint.SetUpperLinLimit(val);
+                                                break;
+                                        case SLIDER_ANGULAR:
+                                                constraint.SetUpperAngLimit(val);
+                                                break;
+                                }
+                                break;
+                }
+        return true;
+    }
+    public override bool SliderSet(BulletConstraint pConstraint, int softRestDamp, int dirLimOrtho, int linAng, float val)
+    {
+        SliderConstraint constraint = (pConstraint as BulletConstraintXNA).constrain as SliderConstraint;
+                switch (softRestDamp)
+                {
+                        case SLIDER_SET_SOFTNESS:
+                                switch (dirLimOrtho)
+                                {
+                                        case SLIDER_SET_DIRECTION:
+                                                switch (linAng)
+                                                {
+                                                        case SLIDER_LINEAR: constraint.SetSoftnessDirLin(val); break;
+                                                        case SLIDER_ANGULAR: constraint.SetSoftnessDirAng(val); break;
+                                                }
+                                                break;
+                                        case SLIDER_SET_LIMIT:
+                                                switch (linAng)
+                                                {
+                                                        case SLIDER_LINEAR: constraint.SetSoftnessLimLin(val); break;
+                                                        case SLIDER_ANGULAR: constraint.SetSoftnessLimAng(val); break;
+                                                }
+                                                break;
+                                        case SLIDER_SET_ORTHO:
+                                                switch (linAng)
+                                                {
+                                                        case SLIDER_LINEAR: constraint.SetSoftnessOrthoLin(val); break;
+                                                        case SLIDER_ANGULAR: constraint.SetSoftnessOrthoAng(val); break;
+                                                }
+                                                break;
+                                }
+                                break;
+                        case SLIDER_SET_RESTITUTION:
+                                switch (dirLimOrtho)
+                                {
+                                        case SLIDER_SET_DIRECTION:
+                                                switch (linAng)
+                                                {
+                                                        case SLIDER_LINEAR: constraint.SetRestitutionDirLin(val); break;
+                                                        case SLIDER_ANGULAR: constraint.SetRestitutionDirAng(val); break;
+                                                }
+                                                break;
+                                        case SLIDER_SET_LIMIT:
+                                                switch (linAng)
+                                                {
+                                                        case SLIDER_LINEAR: constraint.SetRestitutionLimLin(val); break;
+                                                        case SLIDER_ANGULAR: constraint.SetRestitutionLimAng(val); break;
+                                                }
+                                                break;
+                                        case SLIDER_SET_ORTHO:
+                                                switch (linAng)
+                                                {
+                                                        case SLIDER_LINEAR: constraint.SetRestitutionOrthoLin(val); break;
+                                                        case SLIDER_ANGULAR: constraint.SetRestitutionOrthoAng(val); break;
+                                                }
+                                                break;
+                                }
+                                break;
+                        case SLIDER_SET_DAMPING:
+                                switch (dirLimOrtho)
+                                {
+                                        case SLIDER_SET_DIRECTION:
+                                                switch (linAng)
+                                                {
+                                                        case SLIDER_LINEAR: constraint.SetDampingDirLin(val); break;
+                                                        case SLIDER_ANGULAR: constraint.SetDampingDirAng(val); break;
+                                                }
+                                                break;
+                                        case SLIDER_SET_LIMIT:
+                                                switch (linAng)
+                                                {
+                                                        case SLIDER_LINEAR: constraint.SetDampingLimLin(val); break;
+                                                        case SLIDER_ANGULAR: constraint.SetDampingLimAng(val); break;
+                                                }
+                                                break;
+                                        case SLIDER_SET_ORTHO:
+                                                switch (linAng)
+                                                {
+                                                        case SLIDER_LINEAR: constraint.SetDampingOrthoLin(val); break;
+                                                        case SLIDER_ANGULAR: constraint.SetDampingOrthoAng(val); break;
+                                                }
+                                                break;
+                                }
+                                break;
+                }
+        return true;
+    }
+    public override bool SliderMotorEnable(BulletConstraint pConstraint, int linAng, float numericTrueFalse)
+    {
+        SliderConstraint constraint = (pConstraint as BulletConstraintXNA).constrain as SliderConstraint;
+                switch (linAng)
+                {
+                        case SLIDER_LINEAR:
+                                constraint.SetPoweredLinMotor(numericTrueFalse == 0.0 ? false : true);
+                                break;
+                        case SLIDER_ANGULAR:
+                                constraint.SetPoweredAngMotor(numericTrueFalse == 0.0 ? false : true);
+                                break;
+                }
+        return true;
+    }
+    public override bool SliderMotor(BulletConstraint pConstraint, int forceVel, int linAng, float val)
+    {
+        SliderConstraint constraint = (pConstraint as BulletConstraintXNA).constrain as SliderConstraint;
+                switch (forceVel)
+                {
+                        case SLIDER_MOTOR_VELOCITY:
+                                switch (linAng)
+                                {
+                                        case SLIDER_LINEAR:
+                                                constraint.SetTargetLinMotorVelocity(val);
+                                                break;
+                                        case SLIDER_ANGULAR:
+                                                constraint.SetTargetAngMotorVelocity(val);
+                                                break;
+                                }
+                                break;
+                        case SLIDER_MAX_MOTOR_FORCE:
+                                switch (linAng)
+                                {
+                                        case SLIDER_LINEAR:
+                                                constraint.SetMaxLinMotorForce(val);
+                                                break;
+                                        case SLIDER_ANGULAR:
+                                                constraint.SetMaxAngMotorForce(val);
+                                                break;
+                                }
+                                break;
+                }
+        return true;
+    }
+
     //BulletSimAPI.SetAngularDamping(Prim.PhysBody.ptr, angularDamping);
     public override void SetAngularDamping(BulletBody pBody, float angularDamping)
     {
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSActorAvatarMove.cs b/OpenSim/Region/Physics/BulletSPlugin/BSActorAvatarMove.cs
index 68bc1b9..1bcf879 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSActorAvatarMove.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSActorAvatarMove.cs
@@ -105,7 +105,7 @@ public class BSActorAvatarMove : BSActor
     //     into the movement motor.
     public void SetVelocityAndTarget(OMV.Vector3 vel, OMV.Vector3 targ, bool inTaintTime)
     {
-        m_physicsScene.TaintedObject(inTaintTime, "BSActorAvatarMove.setVelocityAndTarget", delegate()
+        m_physicsScene.TaintedObject(inTaintTime, m_controllingPrim.LocalID, "BSActorAvatarMove.setVelocityAndTarget", delegate()
         {
             if (m_velocityMotor != null)
             {
@@ -128,6 +128,7 @@ public class BSActorAvatarMove : BSActor
                                                 BSMotor.Infinite,           // decay time scale
                                                 1f                          // efficiency
             );
+            m_velocityMotor.ErrorZeroThreshold = BSParam.AvatarStopZeroThreshold;
             // _velocityMotor.PhysicsScene = PhysicsScene; // DEBUG DEBUG so motor will output detail log messages.
             SetVelocityAndTarget(m_controllingPrim.RawVelocity, m_controllingPrim.TargetVelocity, true /* inTaintTime */);
 
@@ -278,6 +279,7 @@ public class BSActorAvatarMove : BSActor
         if (m_controllingPrim.IsStationary)
         {
             entprop.Position = m_controllingPrim.RawPosition;
+            entprop.Velocity = OMV.Vector3.Zero;
             m_physicsScene.PE.SetTranslation(m_controllingPrim.PhysBody, entprop.Position, entprop.Rotation);
         }
 
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSApiTemplate.cs b/OpenSim/Region/Physics/BulletSPlugin/BSApiTemplate.cs
index 6cdc112..f7dd158 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSApiTemplate.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSApiTemplate.cs
@@ -43,7 +43,9 @@ public enum ConstraintType : int
         SLIDER_CONSTRAINT_TYPE,
         CONTACT_CONSTRAINT_TYPE,
         D6_SPRING_CONSTRAINT_TYPE,
-        MAX_CONSTRAINT_TYPE
+        MAX_CONSTRAINT_TYPE,            // last type defined by Bullet
+    //
+    FIXED_CONSTRAINT_TYPE = 1234    // BulletSim constraint that is fixed and unmoving
 }
 
 // ===============================================================================
@@ -290,7 +292,7 @@ public enum ConstraintParamAxis : int
     AXIS_ANGULAR_X,
     AXIS_ANGULAR_Y,
     AXIS_ANGULAR_Z,
-    AXIS_LINEAR_ALL = 20,    // these last three added by BulletSim so we don't have to do zillions of calls
+    AXIS_LINEAR_ALL = 20,    // added by BulletSim so we don't have to do zillions of calls
     AXIS_ANGULAR_ALL,
     AXIS_ALL
 };
@@ -441,6 +443,38 @@ public abstract bool TranslationalLimitMotor(BulletConstraint constrain, float e
 
 public abstract bool SetBreakingImpulseThreshold(BulletConstraint constrain, float threshold);
 
+public const int HINGE_NOT_SPECIFIED = -1;
+public abstract bool HingeSetLimits(BulletConstraint constrain, float low, float high, float softness, float bias, float relaxation);
+
+public abstract bool SpringEnable(BulletConstraint constrain, int index, float numericTrueFalse);
+
+public const int SPRING_NOT_SPECIFIED = -1;
+public abstract bool SpringSetEquilibriumPoint(BulletConstraint constrain, int index, float equilibriumPoint);
+
+public abstract bool SpringSetStiffness(BulletConstraint constrain, int index, float stiffnesss);
+
+public abstract bool SpringSetDamping(BulletConstraint constrain, int index, float damping);
+
+public const int SLIDER_LOWER_LIMIT = 0;
+public const int SLIDER_UPPER_LIMIT = 1;
+public const int SLIDER_LINEAR = 2;
+public const int SLIDER_ANGULAR = 3;
+public abstract bool SliderSetLimits(BulletConstraint constrain, int lowerUpper, int linAng, float val);
+
+public const int SLIDER_SET_SOFTNESS = 4;
+public const int SLIDER_SET_RESTITUTION = 5;
+public const int SLIDER_SET_DAMPING = 6;
+public const int SLIDER_SET_DIRECTION = 7;
+public const int SLIDER_SET_LIMIT = 8;
+public const int SLIDER_SET_ORTHO = 9;
+public abstract bool SliderSet(BulletConstraint constrain, int softRestDamp, int dirLimOrtho, int linAng, float val);
+
+public abstract bool SliderMotorEnable(BulletConstraint constrain, int linAng, float numericTrueFalse);
+
+public const int SLIDER_MOTOR_VELOCITY = 10;
+public const int SLIDER_MAX_MOTOR_FORCE = 11;
+public abstract bool SliderMotor(BulletConstraint constrain, int forceVel, int linAng, float val);
+
 public abstract bool CalculateTransforms(BulletConstraint constrain);
 
 public abstract bool SetConstraintParam(BulletConstraint constrain, ConstraintParams paramIndex, float value, ConstraintParamAxis axis);
@@ -464,6 +498,8 @@ public abstract bool AddObjectToWorld(BulletWorld world, BulletBody obj);
 
 public abstract bool RemoveObjectFromWorld(BulletWorld world, BulletBody obj);
 
+public abstract bool ClearCollisionProxyCache(BulletWorld world, BulletBody obj);
+
 public abstract bool AddConstraintToWorld(BulletWorld world, BulletConstraint constrain, bool disableCollisionsBetweenLinkedObjects);
 
 public abstract bool RemoveConstraintFromWorld(BulletWorld world, BulletConstraint constrain);
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
index 291dfcd..fc18960 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
@@ -93,7 +93,7 @@ public sealed class BSCharacter : BSPhysObject
                             LocalID, _size, Scale, Density, _avatarVolume, RawMass, pos);
 
         // do actual creation in taint time
-        PhysScene.TaintedObject("BSCharacter.create", delegate()
+        PhysScene.TaintedObject(LocalID, "BSCharacter.create", delegate()
         {
             DetailLog("{0},BSCharacter.create,taint", LocalID);
             // New body and shape into PhysBody and PhysShape
@@ -121,7 +121,7 @@ public sealed class BSCharacter : BSPhysObject
         base.Destroy();
 
         DetailLog("{0},BSCharacter.Destroy", LocalID);
-        PhysScene.TaintedObject("BSCharacter.destroy", delegate()
+        PhysScene.TaintedObject(LocalID, "BSCharacter.destroy", delegate()
         {
             PhysScene.Shapes.DereferenceBody(PhysBody, null /* bodyCallback */);
             PhysBody.Clear();
@@ -209,7 +209,7 @@ public sealed class BSCharacter : BSPhysObject
             DetailLog("{0},BSCharacter.setSize,call,size={1},scale={2},density={3},volume={4},mass={5}",
                             LocalID, _size, Scale, Density, _avatarVolume, RawMass);
 
-            PhysScene.TaintedObject("BSCharacter.setSize", delegate()
+            PhysScene.TaintedObject(LocalID, "BSCharacter.setSize", delegate()
             {
                 if (PhysBody.HasPhysicalBody && PhysShape.physShapeInfo.HasPhysicalShape)
                 {
@@ -257,7 +257,7 @@ public sealed class BSCharacter : BSPhysObject
         _rotationalVelocity = OMV.Vector3.Zero;
 
         // Zero some other properties directly into the physics engine
-        PhysScene.TaintedObject(inTaintTime, "BSCharacter.ZeroMotion", delegate()
+        PhysScene.TaintedObject(inTaintTime, LocalID, "BSCharacter.ZeroMotion", delegate()
         {
             if (PhysBody.HasPhysicalBody)
                 PhysScene.PE.ClearAllForces(PhysBody);
@@ -267,7 +267,7 @@ public sealed class BSCharacter : BSPhysObject
     {
         _rotationalVelocity = OMV.Vector3.Zero;
 
-        PhysScene.TaintedObject(inTaintTime, "BSCharacter.ZeroMotion", delegate()
+        PhysScene.TaintedObject(inTaintTime, LocalID, "BSCharacter.ZeroMotion", delegate()
         {
             if (PhysBody.HasPhysicalBody)
             {
@@ -291,7 +291,7 @@ public sealed class BSCharacter : BSPhysObject
         set {
             RawPosition = value;
 
-            PhysScene.TaintedObject("BSCharacter.setPosition", delegate()
+            PhysScene.TaintedObject(LocalID, "BSCharacter.setPosition", delegate()
             {
                 DetailLog("{0},BSCharacter.SetPosition,taint,pos={1},orient={2}", LocalID, RawPosition, RawOrientation);
                 PositionSanityCheck();
@@ -363,7 +363,7 @@ public sealed class BSCharacter : BSPhysObject
         {
             // The new position value must be pushed into the physics engine but we can't
             //    just assign to "Position" because of potential call loops.
-            PhysScene.TaintedObject(inTaintTime, "BSCharacter.PositionSanityCheck", delegate()
+            PhysScene.TaintedObject(inTaintTime, LocalID, "BSCharacter.PositionSanityCheck", delegate()
             {
                 DetailLog("{0},BSCharacter.PositionSanityCheck,taint,pos={1},orient={2}", LocalID, RawPosition, RawOrientation);
                 ForcePosition = RawPosition;
@@ -390,7 +390,7 @@ public sealed class BSCharacter : BSPhysObject
         set {
             RawForce = value;
             // m_log.DebugFormat("{0}: Force = {1}", LogHeader, _force);
-            PhysScene.TaintedObject("BSCharacter.SetForce", delegate()
+            PhysScene.TaintedObject(LocalID, "BSCharacter.SetForce", delegate()
             {
                 DetailLog("{0},BSCharacter.setForce,taint,force={1}", LocalID, RawForce);
                 if (PhysBody.HasPhysicalBody)
@@ -438,7 +438,7 @@ public sealed class BSCharacter : BSPhysObject
         set {
             RawVelocity = value;
             // m_log.DebugFormat("{0}: set velocity = {1}", LogHeader, RawVelocity);
-            PhysScene.TaintedObject("BSCharacter.setVelocity", delegate()
+            PhysScene.TaintedObject(LocalID, "BSCharacter.setVelocity", delegate()
             {
                 if (m_moveActor != null)
                     m_moveActor.SetVelocityAndTarget(RawVelocity, RawVelocity, true /* inTaintTime */);
@@ -480,7 +480,7 @@ public sealed class BSCharacter : BSPhysObject
             if (RawOrientation != value)
             {
                 RawOrientation = value;
-                PhysScene.TaintedObject("BSCharacter.setOrientation", delegate()
+                PhysScene.TaintedObject(LocalID, "BSCharacter.setOrientation", delegate()
                 {
                     // Bullet assumes we know what we are doing when forcing orientation
                     //    so it lets us go against all the rules and just compensates for them later.
@@ -560,7 +560,7 @@ public sealed class BSCharacter : BSPhysObject
     public override bool FloatOnWater {
         set {
             _floatOnWater = value;
-            PhysScene.TaintedObject("BSCharacter.setFloatOnWater", delegate()
+            PhysScene.TaintedObject(LocalID, "BSCharacter.setFloatOnWater", delegate()
             {
                 if (PhysBody.HasPhysicalBody)
                 {
@@ -588,7 +588,7 @@ public sealed class BSCharacter : BSPhysObject
     public override float Buoyancy {
         get { return _buoyancy; }
         set { _buoyancy = value;
-            PhysScene.TaintedObject("BSCharacter.setBuoyancy", delegate()
+            PhysScene.TaintedObject(LocalID, "BSCharacter.setBuoyancy", delegate()
             {
                 DetailLog("{0},BSCharacter.setBuoyancy,taint,buoy={1}", LocalID, _buoyancy);
                 ForceBuoyancy = _buoyancy;
@@ -633,7 +633,7 @@ public sealed class BSCharacter : BSPhysObject
             OMV.Vector3 addForce = Util.ClampV(force, BSParam.MaxAddForceMagnitude);
             // DetailLog("{0},BSCharacter.addForce,call,force={1}", LocalID, addForce);
 
-            PhysScene.TaintedObject(inTaintTime, "BSCharacter.AddForce", delegate()
+            PhysScene.TaintedObject(inTaintTime, LocalID, "BSCharacter.AddForce", delegate()
             {
                 // Bullet adds this central force to the total force for this tick
                 // DetailLog("{0},BSCharacter.addForce,taint,force={1}", LocalID, addForce);
@@ -676,18 +676,20 @@ public sealed class BSCharacter : BSPhysObject
         float heightAdjust = BSParam.AvatarHeightMidFudge;
         if (BSParam.AvatarHeightLowFudge != 0f || BSParam.AvatarHeightHighFudge != 0f)
         {
-            // An avatar is between 1.61 and 2.12 meters. Midpoint is 1.87m.
-            // The "times 4" relies on the fact that the difference from the midpoint to the extremes is exactly 0.25
-            float midHeightOffset = size.Z - 1.87f;
+            const float AVATAR_LOW = 1.1f;
+            const float AVATAR_MID = 1.775f; // 1.87f
+            const float AVATAR_HI = 2.45f;
+            // An avatar is between 1.1 and 2.45 meters. Midpoint is 1.775m.
+            float midHeightOffset = size.Z - AVATAR_MID;
             if (midHeightOffset < 0f)
             {
                 // Small avatar. Add the adjustment based on the distance from midheight
-                heightAdjust += -1f * midHeightOffset * 4f * BSParam.AvatarHeightLowFudge;
+                heightAdjust += ((-1f * midHeightOffset) / (AVATAR_MID - AVATAR_LOW)) * BSParam.AvatarHeightLowFudge;
             }
             else
             {
                 // Large avatar. Add the adjustment based on the distance from midheight
-                heightAdjust += midHeightOffset * 4f * BSParam.AvatarHeightHighFudge;
+                heightAdjust += ((midHeightOffset) / (AVATAR_HI - AVATAR_MID)) * BSParam.AvatarHeightHighFudge;
             }
         }
         // The total scale height is the central cylindar plus the caps on the two ends.
@@ -698,6 +700,9 @@ public sealed class BSCharacter : BSPhysObject
         if (newScale.Z < 0)
             newScale.Z = 0.1f;
 
+        DetailLog("{0},BSCharacter.ComputerAvatarScale,size={1},lowF={2},midF={3},hiF={4},adj={5},newScale={6}",
+            LocalID, size, BSParam.AvatarHeightLowFudge, BSParam.AvatarHeightMidFudge, BSParam.AvatarHeightHighFudge, heightAdjust, newScale);
+
         return newScale;
     }
 
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs b/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs
index 42b5c49..b47e9a8 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs
@@ -64,7 +64,7 @@ public abstract class BSConstraint : IDisposable
             {
                 bool success = PhysicsScene.PE.DestroyConstraint(m_world, m_constraint);
                 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.ID, m_body1.AddrString,
                                     m_body2.ID, m_body2.AddrString,
                                     success);
@@ -77,7 +77,10 @@ public abstract class BSConstraint : IDisposable
     {
         bool ret = false;
         if (m_enabled)
+        {
+            m_world.physicsScene.DetailLog("{0},BSConstraint.SetLinearLimits,taint,low={1},high={2}", m_body1.ID, low, high);
             ret = PhysicsScene.PE.SetLinearLimits(m_constraint, low, high);
+        }
         return ret;
     }
 
@@ -86,6 +89,7 @@ public abstract class BSConstraint : IDisposable
         bool ret = false;
         if (m_enabled)
         {
+            m_world.physicsScene.DetailLog("{0},BSConstraint.SetAngularLimits,taint,low={1},high={2}", m_body1.ID, low, high);
             ret = PhysicsScene.PE.SetAngularLimits(m_constraint, low, high);
         }
         return ret;
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSConstraint6Dof.cs b/OpenSim/Region/Physics/BulletSPlugin/BSConstraint6Dof.cs
index d0949f5..7fcb75c 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSConstraint6Dof.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSConstraint6Dof.cs
@@ -32,12 +32,19 @@ using OpenMetaverse;
 namespace OpenSim.Region.Physics.BulletSPlugin
 {
 
-public sealed class BSConstraint6Dof : BSConstraint
+public class BSConstraint6Dof : BSConstraint
 {
     private static string LogHeader = "[BULLETSIM 6DOF CONSTRAINT]";
 
     public override ConstraintType Type { get { return ConstraintType.D6_CONSTRAINT_TYPE; } }
 
+    public BSConstraint6Dof(BulletWorld world, BulletBody obj1, BulletBody obj2) :base(world)
+    {
+        m_body1 = obj1;
+        m_body2 = obj2;
+        m_enabled = false;
+    }
+
     // Create a btGeneric6DofConstraint
     public BSConstraint6Dof(BulletWorld world, BulletBody obj1, BulletBody obj2,
                     Vector3 frame1, Quaternion frame1rot,
@@ -52,9 +59,11 @@ public sealed class BSConstraint6Dof : BSConstraint
                                 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,
+        PhysicsScene.DetailLog("{0},BS6DofConstraint,create,wID={1}, rID={2}, rBody={3}, cID={4}, cBody={5}",
+                            m_body1.ID, world.worldID,
                             obj1.ID, obj1.AddrString, obj2.ID, obj2.AddrString);
+        PhysicsScene.DetailLog("{0},BS6DofConstraint,create,  f1Loc={1},f1Rot={2},f2Loc={3},f2Rot={4},usefA={5},disCol={6}",
+                            m_body1.ID, frame1, frame1rot, frame2, frame2rot, useLinearReferenceFrameA, disableCollisionsBetweenLinkedBodies);
     }
 
     // 6 Dof constraint based on a midpoint between the two constrained bodies
@@ -79,9 +88,11 @@ public sealed class BSConstraint6Dof : BSConstraint
             m_constraint = PhysicsScene.PE.Create6DofConstraintToPoint(m_world, m_body1, m_body2,
                                     joinPoint,
                                     useLinearReferenceFrameA, disableCollisionsBetweenLinkedBodies);
+
             PhysicsScene.DetailLog("{0},BS6DofConstraint,createMidPoint,wID={1}, csrt={2}, rID={3}, rBody={4}, cID={5}, cBody={6}",
-                                BSScene.DetailLogZero, world.worldID, m_constraint.AddrString,
+                                m_body1.ID, world.worldID, m_constraint.AddrString,
                                 obj1.ID, obj1.AddrString, obj2.ID, obj2.AddrString);
+
             if (!m_constraint.HasPhysicalConstraint)
             {
                 world.physicsScene.Logger.ErrorFormat("{0} Failed creation of 6Dof constraint. rootID={1}, childID={2}",
@@ -106,8 +117,10 @@ public sealed class BSConstraint6Dof : BSConstraint
                                 frameInBloc, frameInBrot,
                                 useLinearReferenceFrameB, disableCollisionsBetweenLinkedBodies);
         m_enabled = true;
-        world.physicsScene.DetailLog("{0},BS6DofConstraint,createFixed,wID={1},rID={2},rBody={3}",
-                            BSScene.DetailLogZero, world.worldID, obj1.ID, obj1.AddrString);
+        PhysicsScene.DetailLog("{0},BS6DofConstraint,createFixed,wID={1},rID={2},rBody={3}",
+                                    m_body1.ID, world.worldID, obj1.ID, obj1.AddrString);
+        PhysicsScene.DetailLog("{0},BS6DofConstraint,createFixed,  fBLoc={1},fBRot={2},usefA={3},disCol={4}",
+                            m_body1.ID, frameInBloc, frameInBrot, useLinearReferenceFrameB, disableCollisionsBetweenLinkedBodies);
     }
 
     public bool SetFrames(Vector3 frameA, Quaternion frameArot, Vector3 frameB, Quaternion frameBrot)
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSConstraintConeTwist.cs b/OpenSim/Region/Physics/BulletSPlugin/BSConstraintConeTwist.cs
new file mode 100755
index 0000000..7a76a9a
--- /dev/null
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSConstraintConeTwist.cs
@@ -0,0 +1,54 @@
+/*
+ * 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 BSConstraintConeTwist : BSConstraint
+{
+    public override ConstraintType Type { get { return ConstraintType.CONETWIST_CONSTRAINT_TYPE; } }
+
+    public BSConstraintConeTwist(BulletWorld world, BulletBody obj1, BulletBody obj2,
+                    Vector3 frameInAloc, Quaternion frameInArot,
+                    Vector3 frameInBloc, Quaternion frameInBrot,
+                    bool disableCollisionsBetweenLinkedBodies)
+        : base(world)
+    {
+        m_body1 = obj1;
+        m_body2 = obj2;
+        m_constraint = PhysicsScene.PE.CreateConeTwistConstraint(world, obj1, obj2,
+                                frameInAloc, frameInArot, frameInBloc, frameInBrot,
+                                disableCollisionsBetweenLinkedBodies);
+        m_enabled = true;
+    }
+}
+
+}
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSConstraintSlider.cs b/OpenSim/Region/Physics/BulletSPlugin/BSConstraintSlider.cs
new file mode 100755
index 0000000..37cfa07
--- /dev/null
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSConstraintSlider.cs
@@ -0,0 +1,55 @@
+/*
+ * 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 BSConstraintSlider : BSConstraint
+{
+    public override ConstraintType Type { get { return ConstraintType.SLIDER_CONSTRAINT_TYPE; } }
+
+    public BSConstraintSlider(BulletWorld world, BulletBody obj1, BulletBody obj2,
+                    Vector3 frameInAloc, Quaternion frameInArot,
+                    Vector3 frameInBloc, Quaternion frameInBrot,
+                    bool useLinearReferenceFrameA, bool disableCollisionsBetweenLinkedBodies)
+        : base(world)
+    {
+        m_body1 = obj1;
+        m_body2 = obj2;
+        m_constraint = PhysicsScene.PE.CreateSliderConstraint(world, obj1, obj2,
+                                frameInAloc, frameInArot, frameInBloc, frameInBrot,
+                                useLinearReferenceFrameA, disableCollisionsBetweenLinkedBodies);
+        m_enabled = true;
+    }
+
+}
+
+}
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSConstraintSpring.cs b/OpenSim/Region/Physics/BulletSPlugin/BSConstraintSpring.cs
new file mode 100755
index 0000000..8e7ddff
--- /dev/null
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSConstraintSpring.cs
@@ -0,0 +1,103 @@
+/*
+ * 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 BSConstraintSpring : BSConstraint6Dof
+{
+    public override ConstraintType Type { get { return ConstraintType.D6_SPRING_CONSTRAINT_TYPE; } }
+
+    public BSConstraintSpring(BulletWorld world, BulletBody obj1, BulletBody obj2,
+                    Vector3 frame1Loc, Quaternion frame1Rot,
+                    Vector3 frame2Loc, Quaternion frame2Rot,
+                    bool useLinearReferenceFrameA, bool disableCollisionsBetweenLinkedBodies)
+        :base(world, obj1, obj2)
+    {
+        m_constraint = PhysicsScene.PE.Create6DofSpringConstraint(world, obj1, obj2,
+                                frame1Loc, frame1Rot, frame2Loc, frame2Rot,
+                                useLinearReferenceFrameA, disableCollisionsBetweenLinkedBodies);
+        m_enabled = true;
+
+        PhysicsScene.DetailLog("{0},BSConstraintSpring,create,wID={1}, rID={2}, rBody={3}, cID={4}, cBody={5}",
+                            obj1.ID, world.worldID, obj1.ID, obj1.AddrString, obj2.ID, obj2.AddrString);
+        PhysicsScene.DetailLog("{0},BSConstraintSpring,create,  f1Loc={1},f1Rot={2},f2Loc={3},f2Rot={4},usefA={5},disCol={6}",
+                    m_body1.ID, frame1Loc, frame1Rot, frame2Loc, frame2Rot, useLinearReferenceFrameA, disableCollisionsBetweenLinkedBodies);
+    }
+
+    public bool SetAxisEnable(int pIndex, bool pAxisEnable)
+    {
+        PhysicsScene.DetailLog("{0},BSConstraintSpring.SetEnable,obj1ID={1},obj2ID={2},indx={3},enable={4}",
+                                        m_body1.ID, m_body1.ID, m_body2.ID, pIndex, pAxisEnable);
+        PhysicsScene.PE.SpringEnable(m_constraint, pIndex, BSParam.NumericBool(pAxisEnable));
+        return true;
+    }
+
+    public bool SetStiffness(int pIndex, float pStiffness)
+    {
+        PhysicsScene.DetailLog("{0},BSConstraintSpring.SetStiffness,obj1ID={1},obj2ID={2},indx={3},stiff={4}",
+                                        m_body1.ID, m_body1.ID, m_body2.ID, pIndex, pStiffness);
+        PhysicsScene.PE.SpringSetStiffness(m_constraint, pIndex, pStiffness);
+        return true;
+    }
+
+    public bool SetDamping(int pIndex, float pDamping)
+    {
+        PhysicsScene.DetailLog("{0},BSConstraintSpring.SetDamping,obj1ID={1},obj2ID={2},indx={3},damp={4}",
+                                        m_body1.ID, m_body1.ID, m_body2.ID, pIndex, pDamping);
+        PhysicsScene.PE.SpringSetDamping(m_constraint, pIndex, pDamping);
+        return true;
+    }
+
+    public bool SetEquilibriumPoint(int pIndex, float pEqPoint)
+    {
+        PhysicsScene.DetailLog("{0},BSConstraintSpring.SetEquilibriumPoint,obj1ID={1},obj2ID={2},indx={3},eqPoint={4}",
+                                        m_body1.ID, m_body1.ID, m_body2.ID, pIndex, pEqPoint);
+        PhysicsScene.PE.SpringSetEquilibriumPoint(m_constraint, pIndex, pEqPoint);
+        return true;
+    }
+
+    public bool SetEquilibriumPoint(Vector3 linearEq, Vector3 angularEq)
+    {
+        PhysicsScene.DetailLog("{0},BSConstraintSpring.SetEquilibriumPoint,obj1ID={1},obj2ID={2},linearEq={3},angularEq={4}",
+                                        m_body1.ID, m_body1.ID, m_body2.ID, linearEq, angularEq);
+        PhysicsScene.PE.SpringSetEquilibriumPoint(m_constraint, 0, linearEq.X);
+        PhysicsScene.PE.SpringSetEquilibriumPoint(m_constraint, 1, linearEq.Y);
+        PhysicsScene.PE.SpringSetEquilibriumPoint(m_constraint, 2, linearEq.Z);
+        PhysicsScene.PE.SpringSetEquilibriumPoint(m_constraint, 3, angularEq.X);
+        PhysicsScene.PE.SpringSetEquilibriumPoint(m_constraint, 4, angularEq.Y);
+        PhysicsScene.PE.SpringSetEquilibriumPoint(m_constraint, 5, angularEq.Z);
+        return true;
+    }
+
+}
+
+}
\ No newline at end of file
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs b/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs
index 3afd52e..77f69a5 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs
@@ -77,6 +77,10 @@ public abstract class BSLinkset
         {
             member = pMember;
         }
+        public virtual void ResetLink() { }
+        public virtual void SetLinkParameters(BSConstraint constrain) { }
+        // Returns 'true' if physical property updates from the child should be reported to the simulator
+        public virtual bool ShouldUpdateChildProperties() { return false; }
     }
 
     public LinksetImplementation LinksetImpl { get; protected set; }
@@ -148,7 +152,7 @@ public abstract class BSLinkset
     // Returns a new linkset for the child which is a linkset of one (just the
     //    orphened child).
     // Called at runtime.
-    public BSLinkset RemoveMeFromLinkset(BSPrimLinkable child)
+    public BSLinkset RemoveMeFromLinkset(BSPrimLinkable child, bool inTaintTime)
     {
         lock (m_linksetActivityLock)
         {
@@ -157,7 +161,7 @@ public abstract class BSLinkset
                 // Cannot remove the root from a linkset.
                 return this;
             }
-            RemoveChildFromLinkset(child);
+            RemoveChildFromLinkset(child, inTaintTime);
             LinksetMass = ComputeLinksetMass();
         }
 
@@ -205,6 +209,17 @@ public abstract class BSLinkset
         return ret;
     }
 
+    public bool TryGetLinkInfo(BSPrimLinkable child, out BSLinkInfo foundInfo)
+    {
+        bool ret = false;
+        BSLinkInfo found = null;
+        lock (m_linksetActivityLock)
+        {
+            ret = m_children.TryGetValue(child, out found);
+        }
+        foundInfo = found;
+        return ret;
+    }
     // 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 ForEachLinkInfoAction(BSLinkInfo obj);
@@ -222,6 +237,21 @@ public abstract class BSLinkset
         return ret;
     }
 
+    // Check the type of the link and return 'true' if the link is flexible and the
+    //    updates from the child should be sent to the simulator so things change.
+    public virtual bool ShouldReportPropertyUpdates(BSPrimLinkable child)
+    {
+        bool ret = false;
+
+        BSLinkInfo linkInfo;
+        if (m_children.TryGetValue(child, out linkInfo))
+        {
+            ret = linkInfo.ShouldUpdateChildProperties();
+        }
+
+        return ret;
+    }
+
     // Called after a simulation step to post a collision with this object.
     // Return 'true' if linkset processed the collision. 'false' says the linkset didn't have
     //     anything to add for the collision and it should be passed through normal processing.
@@ -255,7 +285,7 @@ public abstract class BSLinkset
 
     // 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(BSPrimLinkable child);
+    protected abstract void RemoveChildFromLinkset(BSPrimLinkable child, bool inTaintTime);
 
     // When physical properties are changed the linkset needs to recalculate
     //   its internal properties.
@@ -430,6 +460,13 @@ public abstract class BSLinkset
         return com;
     }
 
+    #region Extension
+    public virtual object Extension(string pFunct, params object[] pParams)
+    {
+        return null;
+    }
+    #endregion // Extension
+
     // Invoke the detailed logger and output something if it's enabled.
     protected void DetailLog(string msg, params Object[] args)
     {
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSLinksetCompound.cs b/OpenSim/Region/Physics/BulletSPlugin/BSLinksetCompound.cs
index 085d195..8f12189 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSLinksetCompound.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSLinksetCompound.cs
@@ -90,10 +90,9 @@ public sealed class BSLinksetCompound : BSLinkset
     //   its internal properties.
     public override void Refresh(BSPrimLinkable requestor)
     {
-        base.Refresh(requestor);
-
         // Something changed so do the rebuilding thing
-        // ScheduleRebuild();
+        ScheduleRebuild(requestor);
+        base.Refresh(requestor);
     }
 
     // Schedule a refresh to happen after all the other taint processing.
@@ -127,7 +126,7 @@ public sealed class BSLinksetCompound : BSLinkset
         if (IsRoot(child))
         {
             // The root is going dynamic. Rebuild the linkset so parts and mass get computed properly.
-            ScheduleRebuild(LinksetRoot);
+            Refresh(LinksetRoot);
         }
         return ret;
     }
@@ -144,7 +143,7 @@ public sealed class BSLinksetCompound : BSLinkset
         if (IsRoot(child))
         {
             // Schedule a rebuild to verify that the root shape is set to the real shape.
-            ScheduleRebuild(LinksetRoot);
+            Refresh(LinksetRoot);
         }
         return ret;
     }
@@ -227,7 +226,7 @@ public sealed class BSLinksetCompound : BSLinkset
                     //    there will already be a rebuild scheduled.
                     DetailLog("{0},BSLinksetCompound.UpdateProperties,couldNotUpdateChild.schedulingRebuild,whichUpdated={1}",
                                                                     updated.LocalID, whichUpdated);
-                    ScheduleRebuild(updated);
+                    Refresh(updated);
                 }
             }
         }
@@ -242,10 +241,10 @@ public sealed class BSLinksetCompound : BSLinkset
     {
         bool ret = false;
 
-        DetailLog("{0},BSLinksetCompound.RemoveBodyDependencies,refreshIfChild,rID={1},rBody={2},isRoot={3}",
+        DetailLog("{0},BSLinksetCompound.RemoveDependencies,refreshIfChild,rID={1},rBody={2},isRoot={3}",
                         child.LocalID, LinksetRoot.LocalID, LinksetRoot.PhysBody, IsRoot(child));
 
-        ScheduleRebuild(child);
+        Refresh(child);
 
         return ret;
     }
@@ -263,14 +262,14 @@ public sealed class BSLinksetCompound : BSLinkset
             DetailLog("{0},BSLinksetCompound.AddChildToLinkset,call,child={1}", LinksetRoot.LocalID, child.LocalID);
 
             // Rebuild the compound shape with the new child shape included
-            ScheduleRebuild(child);
+            Refresh(child);
         }
         return;
     }
 
     // Remove the specified child from the linkset.
     // Safe to call even if the child is not really in the linkset.
-    protected override void RemoveChildFromLinkset(BSPrimLinkable child)
+    protected override void RemoveChildFromLinkset(BSPrimLinkable child, bool inTaintTime)
     {
         child.ClearDisplacement();
 
@@ -282,17 +281,17 @@ public sealed class BSLinksetCompound : BSLinkset
                             child.LocalID, child.PhysBody.AddrString);
 
             // Cause the child's body to be rebuilt and thus restored to normal operation
-            child.ForceBodyShapeRebuild(false);
+            child.ForceBodyShapeRebuild(inTaintTime);
 
             if (!HasAnyChildren)
             {
                 // The linkset is now empty. The root needs rebuilding.
-                LinksetRoot.ForceBodyShapeRebuild(false);
+                LinksetRoot.ForceBodyShapeRebuild(inTaintTime);
             }
             else
             {
                 // Rebuild the compound shape with the child removed
-                ScheduleRebuild(LinksetRoot);
+                Refresh(LinksetRoot);
             }
         }
         return;
@@ -318,10 +317,10 @@ public sealed class BSLinksetCompound : BSLinkset
             //     being destructed and going non-physical.
             LinksetRoot.ForceBodyShapeRebuild(true);
 
-            // There is no reason to build all this physical stuff for a non-physical linkset.
-            if (!LinksetRoot.IsPhysicallyActive)
+            // There is no reason to build all this physical stuff for a non-physical or empty linkset.
+            if (!LinksetRoot.IsPhysicallyActive || !HasAnyChildren)
             {
-                DetailLog("{0},BSLinksetCompound.RecomputeLinksetCompound,notPhysical", LinksetRoot.LocalID);
+                DetailLog("{0},BSLinksetCompound.RecomputeLinksetCompound,notPhysicalOrNoChildren", LinksetRoot.LocalID);
                 return; // Note the 'finally' clause at the botton which will get executed.
             }
 
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSLinksetConstraints.cs b/OpenSim/Region/Physics/BulletSPlugin/BSLinksetConstraints.cs
index 4bac222..aaf92c8 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSLinksetConstraints.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSLinksetConstraints.cs
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) Contributors, http://opensimulator.org/
  * See CONTRIBUTORS.TXT for a full list of copyright holders.
  *
@@ -28,6 +28,8 @@ using System;
 using System.Collections.Generic;
 using System.Text;
 
+using OpenSim.Region.OptionalModules.Scripting;
+
 using OMV = OpenMetaverse;
 
 namespace OpenSim.Region.Physics.BulletSPlugin
@@ -51,18 +53,32 @@ public sealed class BSLinksetConstraints : BSLinkset
         public float cfm;
         public float erp;
         public float solverIterations;
+        //
+        public OMV.Vector3 frameInAloc;
+        public OMV.Quaternion frameInArot;
+        public OMV.Vector3 frameInBloc;
+        public OMV.Quaternion frameInBrot;
+        public bool useLinearReferenceFrameA;
+        // Spring
+        public bool[] springAxisEnable;
+        public float[] springDamping;
+        public float[] springStiffness;
+        public OMV.Vector3 springLinearEquilibriumPoint;
+        public OMV.Vector3 springAngularEquilibriumPoint;
 
         public BSLinkInfoConstraint(BSPrimLinkable pMember)
             : base(pMember)
         {
             constraint = null;
-            ResetToFixedConstraint();
+            ResetLink();
+            member.PhysScene.DetailLog("{0},BSLinkInfoConstraint.creation", member.LocalID);
         }
 
         // Set all the parameters for this constraint to a fixed, non-movable constraint.
-        public void ResetToFixedConstraint()
+        public override void ResetLink()
         {
-            constraintType = ConstraintType.D6_CONSTRAINT_TYPE;
+            // constraintType = ConstraintType.D6_CONSTRAINT_TYPE;
+            constraintType = ConstraintType.FIXED_CONSTRAINT_TYPE;
             linearLimitLow = OMV.Vector3.Zero;
             linearLimitHigh = OMV.Vector3.Zero;
             angularLimitLow = OMV.Vector3.Zero;
@@ -74,17 +90,37 @@ public sealed class BSLinksetConstraints : BSLinkset
             cfm = BSParam.LinkConstraintCFM;
             erp = BSParam.LinkConstraintERP;
             solverIterations = BSParam.LinkConstraintSolverIterations;
+            frameInAloc = OMV.Vector3.Zero;
+            frameInArot = OMV.Quaternion.Identity;
+            frameInBloc = OMV.Vector3.Zero;
+            frameInBrot = OMV.Quaternion.Identity;
+            useLinearReferenceFrameA = true;
+            springAxisEnable = new bool[6];
+            springDamping = new float[6];
+            springStiffness = new float[6];
+            for (int ii = 0; ii < springAxisEnable.Length; ii++)
+            {
+                springAxisEnable[ii] = false;
+                springDamping[ii] = BSAPITemplate.SPRING_NOT_SPECIFIED;
+                springStiffness[ii] = BSAPITemplate.SPRING_NOT_SPECIFIED;
+            }
+            springLinearEquilibriumPoint = OMV.Vector3.Zero;
+            springAngularEquilibriumPoint = OMV.Vector3.Zero;
+            member.PhysScene.DetailLog("{0},BSLinkInfoConstraint.ResetLink", member.LocalID);
         }
 
         // Given a constraint, apply the current constraint parameters to same.
-        public void SetConstraintParameters(BSConstraint constrain)
+        public override void SetLinkParameters(BSConstraint constrain)
         {
+            member.PhysScene.DetailLog("{0},BSLinkInfoConstraint.SetLinkParameters,type={1}", member.LocalID, constraintType);
             switch (constraintType)
             {
+                case ConstraintType.FIXED_CONSTRAINT_TYPE:
                 case ConstraintType.D6_CONSTRAINT_TYPE:
                     BSConstraint6Dof constrain6dof = constrain as BSConstraint6Dof;
                     if (constrain6dof != null)
                     {
+                        // NOTE: D6_SPRING_CONSTRAINT_TYPE should be updated if you change any of this code.
                         // zero linear and angular limits makes the objects unable to move in relation to each other
                         constrain6dof.SetLinearLimits(linearLimitLow, linearLimitHigh);
                         constrain6dof.SetAngularLimits(angularLimitLow, angularLimitHigh);
@@ -99,10 +135,55 @@ public sealed class BSLinksetConstraints : BSLinkset
                         }
                     }
                     break;
+                case ConstraintType.D6_SPRING_CONSTRAINT_TYPE:
+                    BSConstraintSpring constrainSpring = constrain as BSConstraintSpring;
+                    if (constrainSpring != null)
+                    {
+                        // zero linear and angular limits makes the objects unable to move in relation to each other
+                        constrainSpring.SetLinearLimits(linearLimitLow, linearLimitHigh);
+                        constrainSpring.SetAngularLimits(angularLimitLow, angularLimitHigh);
+
+                        // tweek the constraint to increase stability
+                        constrainSpring.UseFrameOffset(useFrameOffset);
+                        constrainSpring.TranslationalLimitMotor(enableTransMotor, transMotorMaxVel, transMotorMaxForce);
+                        constrainSpring.SetCFMAndERP(cfm, erp);
+                        if (solverIterations != 0f)
+                        {
+                            constrainSpring.SetSolverIterations(solverIterations);
+                        }
+                        for (int ii = 0; ii < springAxisEnable.Length; ii++)
+                        {
+                            constrainSpring.SetAxisEnable(ii, springAxisEnable[ii]);
+                            if (springDamping[ii] != BSAPITemplate.SPRING_NOT_SPECIFIED)
+                                constrainSpring.SetDamping(ii, springDamping[ii]);
+                            if (springStiffness[ii] != BSAPITemplate.SPRING_NOT_SPECIFIED)
+                                constrainSpring.SetStiffness(ii, springStiffness[ii]);
+                        }
+                        constrainSpring.CalculateTransforms();
+
+                        if (springLinearEquilibriumPoint != OMV.Vector3.Zero)
+                            constrainSpring.SetEquilibriumPoint(springLinearEquilibriumPoint, springAngularEquilibriumPoint);
+                        else
+                            constrainSpring.SetEquilibriumPoint(BSAPITemplate.SPRING_NOT_SPECIFIED, BSAPITemplate.SPRING_NOT_SPECIFIED);
+                    }
+                    break;
                 default:
                     break;
             }
         }
+
+        // Return 'true' if the property updates from the physics engine should be reported
+        //    to the simulator.
+        // If the constraint is fixed, we don't need to report as the simulator and viewer will
+        //    report the right things.
+        public override bool ShouldUpdateChildProperties()
+        {
+            bool ret = true;
+            if (constraintType == ConstraintType.FIXED_CONSTRAINT_TYPE)
+                ret = false;
+
+            return ret;
+        }
     }
 
     public BSLinksetConstraints(BSScene scene, BSPrimLinkable parent) : base(scene, parent)
@@ -110,12 +191,15 @@ public sealed class BSLinksetConstraints : BSLinkset
         LinksetImpl = LinksetImplementation.Constraint;
     }
 
+    private static string LogHeader = "[BULLETSIM LINKSET CONSTRAINT]";
+
     // 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(BSPrimLinkable requestor)
     {
+        ScheduleRebuild(requestor);
         base.Refresh(requestor);
 
     }
@@ -132,10 +216,16 @@ public sealed class BSLinksetConstraints : BSLinkset
         {
             // Queue to happen after all the other taint processing
             m_physicsScene.PostTaintObject("BSLinksetContraints.Refresh", requestor.LocalID, delegate()
+            {
+                if (HasAnyChildren)
                 {
-                    if (HasAnyChildren)
-                        RecomputeLinksetConstraints();
-                });
+                    // Constraints that have not been changed are not rebuild but make sure
+                    //     the constraint of the requestor is rebuilt.
+                    PhysicallyUnlinkAChildFromRoot(LinksetRoot, requestor);
+                    // Rebuild the linkset and all its constraints.
+                    RecomputeLinksetConstraints();
+                }
+            });
         }
     }
 
@@ -152,7 +242,7 @@ public sealed class BSLinksetConstraints : BSLinkset
         if (IsRoot(child))
         {
             // The root is going dynamic. Rebuild the linkset so parts and mass get computed properly.
-            ScheduleRebuild(LinksetRoot);
+            Refresh(LinksetRoot);
         }
         return ret;
     }
@@ -171,7 +261,7 @@ public sealed class BSLinksetConstraints : BSLinkset
         if (IsRoot(child))
         {
             // Schedule a rebuild to verify that the root shape is set to the real shape.
-            ScheduleRebuild(LinksetRoot);
+            Refresh(LinksetRoot);
         }
         return ret;
     }
@@ -199,7 +289,7 @@ public sealed class BSLinksetConstraints : BSLinkset
             // 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.
-            ScheduleRebuild(LinksetRoot);
+            Refresh(LinksetRoot);
         }
         return ret;
     }
@@ -217,14 +307,14 @@ public sealed class BSLinksetConstraints : BSLinkset
             DetailLog("{0},BSLinksetConstraints.AddChildToLinkset,call,child={1}", LinksetRoot.LocalID, child.LocalID);
 
             // Cause constraints and assorted properties to be recomputed before the next simulation step.
-            ScheduleRebuild(LinksetRoot);
+            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(BSPrimLinkable child)
+    protected override void RemoveChildFromLinkset(BSPrimLinkable child, bool inTaintTime)
     {
         if (m_children.Remove(child))
         {
@@ -236,12 +326,12 @@ public sealed class BSLinksetConstraints : BSLinkset
                             rootx.LocalID, rootx.PhysBody.AddrString,
                             childx.LocalID, childx.PhysBody.AddrString);
 
-            m_physicsScene.TaintedObject("BSLinksetConstraints.RemoveChildFromLinkset", delegate()
+            m_physicsScene.TaintedObject(inTaintTime, childx.LocalID, "BSLinksetConstraints.RemoveChildFromLinkset", delegate()
             {
                 PhysicallyUnlinkAChildFromRoot(rootx, childx);
             });
             // See that the linkset parameters are recomputed at the end of the taint time.
-            ScheduleRebuild(LinksetRoot);
+            Refresh(LinksetRoot);
         }
         else
         {
@@ -262,8 +352,8 @@ public sealed class BSLinksetConstraints : BSLinkset
     // Create a static constraint between the two passed objects
     private BSConstraint BuildConstraint(BSPrimLinkable rootPrim, BSLinkInfo li)
     {
-        BSLinkInfoConstraint liConstraint = li as BSLinkInfoConstraint;
-        if (liConstraint == null)
+        BSLinkInfoConstraint linkInfo = li as BSLinkInfoConstraint;
+        if (linkInfo == null)
             return null;
 
         // Zero motion for children so they don't interpolate
@@ -271,27 +361,26 @@ public sealed class BSLinksetConstraints : BSLinkset
 
         BSConstraint constrain = null;
 
-        switch (liConstraint.constraintType)
+        switch (linkInfo.constraintType)
         {
+            case ConstraintType.FIXED_CONSTRAINT_TYPE:
             case ConstraintType.D6_CONSTRAINT_TYPE:
                 // Relative position normalized to the root prim
                 // Essentually a vector pointing from center of rootPrim to center of li.member
-                OMV.Vector3 childRelativePosition = liConstraint.member.Position - rootPrim.Position;
+                OMV.Vector3 childRelativePosition = linkInfo.member.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.AddrString,
-                                                liConstraint.member.LocalID, liConstraint.member.PhysBody.AddrString,
-                                                rootPrim.Position, liConstraint.member.Position, midPoint);
+                DetailLog("{0},BSLinksetConstraint.BuildConstraint,6Dof,rBody={1},cBody={2},rLoc={3},cLoc={4},midLoc={5}",
+                                                rootPrim.LocalID, rootPrim.PhysBody, linkInfo.member.PhysBody,
+                                                rootPrim.Position, linkInfo.member.Position, midPoint);
 
                 // create a constraint that allows no freedom of movement between the two objects
                 // http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=4818
 
                 constrain = new BSConstraint6Dof(
-                                    m_physicsScene.World, rootPrim.PhysBody, liConstraint.member.PhysBody, midPoint, true, true );
+                                    m_physicsScene.World, rootPrim.PhysBody, linkInfo.member.PhysBody, 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
@@ -320,11 +409,23 @@ public sealed class BSLinksetConstraints : BSLinkset
                 */
 
                 break;
+            case ConstraintType.D6_SPRING_CONSTRAINT_TYPE:
+                constrain = new BSConstraintSpring(m_physicsScene.World, rootPrim.PhysBody, linkInfo.member.PhysBody,
+                                linkInfo.frameInAloc, linkInfo.frameInArot, linkInfo.frameInBloc, linkInfo.frameInBrot,
+                                linkInfo.useLinearReferenceFrameA,
+                                true /*disableCollisionsBetweenLinkedBodies*/);
+                DetailLog("{0},BSLinksetConstraint.BuildConstraint,spring,root={1},rBody={2},child={3},cBody={4},rLoc={5},cLoc={6}",
+                                                rootPrim.LocalID,
+                                                rootPrim.LocalID, rootPrim.PhysBody.AddrString,
+                                                linkInfo.member.LocalID, linkInfo.member.PhysBody.AddrString,
+                                                rootPrim.Position, linkInfo.member.Position);
+
+                break;
             default:
                 break;
         }
 
-        liConstraint.SetConstraintParameters(constrain);
+        linkInfo.SetLinkParameters(constrain);
 
         m_physicsScene.Constraints.AddConstraint(constrain);
 
@@ -343,13 +444,22 @@ public sealed class BSLinksetConstraints : BSLinkset
                             rootPrim.LocalID, rootPrim.PhysBody.AddrString,
                             childPrim.LocalID, childPrim.PhysBody.AddrString);
 
-        // Find the constraint for this link and get rid of it from the overall collection and from my list
-        if (m_physicsScene.Constraints.RemoveAndDestroyConstraint(rootPrim.PhysBody, childPrim.PhysBody))
+        // If asked to unlink root from root, just remove all the constraints
+        if (rootPrim == childPrim || childPrim == LinksetRoot)
         {
-            // Make the child refresh its location
-            m_physicsScene.PE.PushUpdate(childPrim.PhysBody);
+            PhysicallyUnlinkAllChildrenFromRoot(LinksetRoot);
             ret = true;
         }
+        else
+        {
+            // Find the constraint for this link and get rid of it from the overall collection and from my list
+            if (m_physicsScene.Constraints.RemoveAndDestroyConstraint(rootPrim.PhysBody, childPrim.PhysBody))
+            {
+                // Make the child refresh its location
+                m_physicsScene.PE.PushUpdate(childPrim.PhysBody);
+                ret = true;
+            }
+        }
 
         return ret;
     }
@@ -382,9 +492,9 @@ public sealed class BSLinksetConstraints : BSLinkset
             Rebuilding = true;
 
             // There is no reason to build all this physical stuff for a non-physical linkset.
-            if (!LinksetRoot.IsPhysicallyActive)
+            if (!LinksetRoot.IsPhysicallyActive || !HasAnyChildren)
             {
-                DetailLog("{0},BSLinksetConstraint.RecomputeLinksetCompound,notPhysical", LinksetRoot.LocalID);
+                DetailLog("{0},BSLinksetConstraint.RecomputeLinksetCompound,notPhysicalOrNoChildren", LinksetRoot.LocalID);
                 return; // Note the 'finally' clause at the botton which will get executed.
             }
 
@@ -401,6 +511,7 @@ public sealed class BSLinksetConstraints : BSLinkset
                     // If constraint doesn't exist yet, create it.
                     constrain = BuildConstraint(LinksetRoot, li);
                 }
+                li.SetLinkParameters(constrain);
                 constrain.RecomputeConstraintVariables(linksetMass);
 
                 // PhysicsScene.PE.DumpConstraint(PhysicsScene.World, constrain.Constraint);    // DEBUG DEBUG
@@ -412,5 +523,324 @@ public sealed class BSLinksetConstraints : BSLinkset
             Rebuilding = false;
         }
     }
+
+    #region Extension
+    public override object Extension(string pFunct, params object[] pParams)
+    {
+        object ret = null;
+        switch (pFunct)
+        {
+            // pParams = [ BSPhysObject root, BSPhysObject child, integer linkType ]
+            case ExtendedPhysics.PhysFunctChangeLinkType:
+                if (pParams.Length > 2)
+                {
+                    int requestedType = (int)pParams[2];
+                    DetailLog("{0},BSLinksetConstraint.ChangeLinkType,requestedType={1}", LinksetRoot.LocalID, requestedType);
+                    if (requestedType == (int)ConstraintType.FIXED_CONSTRAINT_TYPE
+                        || requestedType == (int)ConstraintType.D6_CONSTRAINT_TYPE
+                        || requestedType == (int)ConstraintType.D6_SPRING_CONSTRAINT_TYPE
+                        || requestedType == (int)ConstraintType.HINGE_CONSTRAINT_TYPE
+                        || requestedType == (int)ConstraintType.CONETWIST_CONSTRAINT_TYPE
+                        || requestedType == (int)ConstraintType.SLIDER_CONSTRAINT_TYPE)
+                    {
+                        BSPrimLinkable child = pParams[1] as BSPrimLinkable;
+                        if (child != null)
+                        {
+                            DetailLog("{0},BSLinksetConstraint.ChangeLinkType,rootID={1},childID={2},type={3}",
+                                                    LinksetRoot.LocalID, LinksetRoot.LocalID, child.LocalID, requestedType);
+                            m_physicsScene.TaintedObject(child.LocalID, "BSLinksetConstraint.PhysFunctChangeLinkType", delegate()
+                            {
+                                // Pick up all the constraints currently created.
+                                RemoveDependencies(child);
+
+                                BSLinkInfo linkInfo = null;
+                                if (TryGetLinkInfo(child, out linkInfo))
+                                {
+                                    BSLinkInfoConstraint linkInfoC = linkInfo as BSLinkInfoConstraint;
+                                    if (linkInfoC != null)
+                                    {
+                                        linkInfoC.constraintType = (ConstraintType)requestedType;
+                                        ret = (object)true;
+                                        DetailLog("{0},BSLinksetConstraint.ChangeLinkType,link={1},type={2}",
+                                                    linkInfo.member.LocalID, linkInfo.member.LocalID, linkInfoC.constraintType);
+                                    }
+                                    else
+                                    {
+                                        DetailLog("{0},BSLinksetConstraint.ChangeLinkType,linkInfoNotConstraint,childID={1}", LinksetRoot.LocalID, child.LocalID);
+                                    }
+                                }
+                                else
+                                {
+                                    DetailLog("{0},BSLinksetConstraint.ChangeLinkType,noLinkInfoForChild,childID={1}", LinksetRoot.LocalID, child.LocalID);
+                                }
+                                // Cause the whole linkset to be rebuilt in post-taint time.
+                                Refresh(child);
+                            });
+                        }
+                        else
+                        {
+                            DetailLog("{0},BSLinksetConstraint.SetLinkType,childNotBSPrimLinkable", LinksetRoot.LocalID);
+                        }
+                    }
+                    else
+                    {
+                        DetailLog("{0},BSLinksetConstraint.SetLinkType,illegalRequestedType,reqested={1},spring={2}",
+                                        LinksetRoot.LocalID, requestedType, ((int)ConstraintType.D6_SPRING_CONSTRAINT_TYPE));
+                    }
+                }
+                break;
+            // pParams = [ BSPhysObject root, BSPhysObject child ]
+            case ExtendedPhysics.PhysFunctGetLinkType:
+                if (pParams.Length > 0)
+                {
+                    BSPrimLinkable child = pParams[1] as BSPrimLinkable;
+                    if (child != null)
+                    {
+                        BSLinkInfo linkInfo = null;
+                        if (TryGetLinkInfo(child, out linkInfo))
+                        {
+                            BSLinkInfoConstraint linkInfoC = linkInfo as BSLinkInfoConstraint;
+                            if (linkInfoC != null)
+                            {
+                                ret = (object)(int)linkInfoC.constraintType;
+                                DetailLog("{0},BSLinksetConstraint.GetLinkType,link={1},type={2}",
+                                            linkInfo.member.LocalID, linkInfo.member.LocalID, linkInfoC.constraintType);
+
+                            }
+                        }
+                    }
+                }
+                break;
+            // pParams = [ BSPhysObject root, BSPhysObject child, int op, object opParams, int op, object opParams, ... ]
+            case ExtendedPhysics.PhysFunctChangeLinkParams:
+                // There should be two parameters: the childActor and a list of parameters to set
+                if (pParams.Length > 2)
+                {
+                    BSPrimLinkable child = pParams[1] as BSPrimLinkable;
+                    BSLinkInfo baseLinkInfo = null;
+                    if (TryGetLinkInfo(child, out baseLinkInfo))
+                    {
+                        BSLinkInfoConstraint linkInfo = baseLinkInfo as BSLinkInfoConstraint;
+                        if (linkInfo != null)
+                        {
+                            int valueInt;
+                            float valueFloat;
+                            bool valueBool;
+                            OMV.Vector3 valueVector;
+                            OMV.Vector3 valueVector2;
+                            OMV.Quaternion valueQuaternion;
+                            int axisLow, axisHigh;
+
+                            int opIndex = 2;
+                            while (opIndex < pParams.Length)
+                            {
+                                int thisOp = 0;
+                                string errMsg = "";
+                                try
+                                {
+                                    thisOp = (int)pParams[opIndex];
+                                    DetailLog("{0},BSLinksetConstraint.ChangeLinkParams2,op={1},val={2}",
+                                                        linkInfo.member.LocalID, thisOp, pParams[opIndex + 1]);
+                                    switch (thisOp)
+                                    {
+                                        case ExtendedPhysics.PHYS_PARAM_LINK_TYPE:
+                                            valueInt = (int)pParams[opIndex + 1];
+                                            ConstraintType valueType = (ConstraintType)valueInt;
+                                            if (valueType == ConstraintType.FIXED_CONSTRAINT_TYPE
+                                                || valueType == ConstraintType.D6_CONSTRAINT_TYPE
+                                                || valueType == ConstraintType.D6_SPRING_CONSTRAINT_TYPE
+                                                || valueType == ConstraintType.HINGE_CONSTRAINT_TYPE
+                                                || valueType == ConstraintType.CONETWIST_CONSTRAINT_TYPE
+                                                || valueType == ConstraintType.SLIDER_CONSTRAINT_TYPE)
+                                            {
+                                                linkInfo.constraintType = valueType;
+                                            }
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_FRAMEINA_LOC:
+                                            errMsg = "PHYS_PARAM_FRAMEINA_LOC takes one parameter of type vector";
+                                            valueVector = (OMV.Vector3)pParams[opIndex + 1];
+                                            linkInfo.frameInAloc = valueVector;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_FRAMEINA_ROT:
+                                            errMsg = "PHYS_PARAM_FRAMEINA_ROT takes one parameter of type rotation";
+                                            valueQuaternion = (OMV.Quaternion)pParams[opIndex + 1];
+                                            linkInfo.frameInArot = valueQuaternion;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_FRAMEINB_LOC:
+                                            errMsg = "PHYS_PARAM_FRAMEINB_LOC takes one parameter of type vector";
+                                            valueVector = (OMV.Vector3)pParams[opIndex + 1];
+                                            linkInfo.frameInBloc = valueVector;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_FRAMEINB_ROT:
+                                            errMsg = "PHYS_PARAM_FRAMEINB_ROT takes one parameter of type rotation";
+                                            valueQuaternion = (OMV.Quaternion)pParams[opIndex + 1];
+                                            linkInfo.frameInBrot = valueQuaternion;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_LINEAR_LIMIT_LOW:
+                                            errMsg = "PHYS_PARAM_LINEAR_LIMIT_LOW takes one parameter of type vector";
+                                            valueVector = (OMV.Vector3)pParams[opIndex + 1];
+                                            linkInfo.linearLimitLow = valueVector;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_LINEAR_LIMIT_HIGH:
+                                            errMsg = "PHYS_PARAM_LINEAR_LIMIT_HIGH takes one parameter of type vector";
+                                            valueVector = (OMV.Vector3)pParams[opIndex + 1];
+                                            linkInfo.linearLimitHigh = valueVector;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_ANGULAR_LIMIT_LOW:
+                                            errMsg = "PHYS_PARAM_ANGULAR_LIMIT_LOW takes one parameter of type vector";
+                                            valueVector = (OMV.Vector3)pParams[opIndex + 1];
+                                            linkInfo.angularLimitLow = valueVector;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_ANGULAR_LIMIT_HIGH:
+                                            errMsg = "PHYS_PARAM_ANGULAR_LIMIT_HIGH takes one parameter of type vector";
+                                            valueVector = (OMV.Vector3)pParams[opIndex + 1];
+                                            linkInfo.angularLimitHigh = valueVector;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_USE_FRAME_OFFSET:
+                                            errMsg = "PHYS_PARAM_USE_FRAME_OFFSET takes one parameter of type integer (bool)";
+                                            valueBool = ((int)pParams[opIndex + 1]) != 0;
+                                            linkInfo.useFrameOffset = valueBool;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_ENABLE_TRANSMOTOR:
+                                            errMsg = "PHYS_PARAM_ENABLE_TRANSMOTOR takes one parameter of type integer (bool)";
+                                            valueBool = ((int)pParams[opIndex + 1]) != 0;
+                                            linkInfo.enableTransMotor = valueBool;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_TRANSMOTOR_MAXVEL:
+                                            errMsg = "PHYS_PARAM_TRANSMOTOR_MAXVEL takes one parameter of type float";
+                                            valueFloat = (float)pParams[opIndex + 1];
+                                            linkInfo.transMotorMaxVel = valueFloat;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_TRANSMOTOR_MAXFORCE:
+                                            errMsg = "PHYS_PARAM_TRANSMOTOR_MAXFORCE takes one parameter of type float";
+                                            valueFloat = (float)pParams[opIndex + 1];
+                                            linkInfo.transMotorMaxForce = valueFloat;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_CFM:
+                                            errMsg = "PHYS_PARAM_CFM takes one parameter of type float";
+                                            valueFloat = (float)pParams[opIndex + 1];
+                                            linkInfo.cfm = valueFloat;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_ERP:
+                                            errMsg = "PHYS_PARAM_ERP takes one parameter of type float";
+                                            valueFloat = (float)pParams[opIndex + 1];
+                                            linkInfo.erp = valueFloat;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_SOLVER_ITERATIONS:
+                                            errMsg = "PHYS_PARAM_SOLVER_ITERATIONS takes one parameter of type float";
+                                            valueFloat = (float)pParams[opIndex + 1];
+                                            linkInfo.solverIterations = valueFloat;
+                                            opIndex += 2;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_SPRING_AXIS_ENABLE:
+                                            errMsg = "PHYS_PARAM_SPRING_AXIS_ENABLE takes two parameters of types integer and integer (bool)";
+                                            valueInt = (int)pParams[opIndex + 1];
+                                            valueBool = ((int)pParams[opIndex + 2]) != 0;
+                                            GetAxisRange(valueInt, out axisLow, out axisHigh);
+                                            for (int ii = axisLow; ii <= axisHigh; ii++)
+                                                linkInfo.springAxisEnable[ii] = valueBool;
+                                            opIndex += 3;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_SPRING_DAMPING:
+                                            errMsg = "PHYS_PARAM_SPRING_DAMPING takes two parameters of types integer and float";
+                                            valueInt = (int)pParams[opIndex + 1];
+                                            valueFloat = (float)pParams[opIndex + 2];
+                                            GetAxisRange(valueInt, out axisLow, out axisHigh);
+                                            for (int ii = axisLow; ii <= axisHigh; ii++)
+                                                linkInfo.springDamping[ii] = valueFloat;
+                                            opIndex += 3;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_SPRING_STIFFNESS:
+                                            errMsg = "PHYS_PARAM_SPRING_STIFFNESS takes two parameters of types integer and float";
+                                            valueInt = (int)pParams[opIndex + 1];
+                                            valueFloat = (float)pParams[opIndex + 2];
+                                            GetAxisRange(valueInt, out axisLow, out axisHigh);
+                                            for (int ii = axisLow; ii <= axisHigh; ii++)
+                                                linkInfo.springStiffness[ii] = valueFloat;
+                                            opIndex += 3;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_SPRING_EQUILIBRIUM_POINT:
+                                            errMsg = "PHYS_PARAM_SPRING_EQUILIBRIUM_POINT takes two parameters of type vector";
+                                            valueVector = (OMV.Vector3)pParams[opIndex + 1];
+                                            valueVector2 = (OMV.Vector3)pParams[opIndex + 2];
+                                            linkInfo.springLinearEquilibriumPoint = valueVector;
+                                            linkInfo.springAngularEquilibriumPoint = valueVector2;
+                                            opIndex += 3;
+                                            break;
+                                        case ExtendedPhysics.PHYS_PARAM_USE_LINEAR_FRAMEA:
+                                            errMsg = "PHYS_PARAM_USE_LINEAR_FRAMEA takes one parameter of type integer (bool)";
+                                            valueBool = ((int)pParams[opIndex + 1]) != 0;
+                                            linkInfo.useLinearReferenceFrameA = valueBool;
+                                            opIndex += 2;
+                                            break;
+                                        default:
+                                            break;
+                                    }
+                                }
+                                catch (InvalidCastException e)
+                                {
+                                    m_physicsScene.Logger.WarnFormat("{0} value of wrong type in physSetLinksetParams: {1}, err={2}",
+                                                        LogHeader, errMsg, e);
+                                }
+                                catch (Exception e)
+                                {
+                                    m_physicsScene.Logger.WarnFormat("{0} bad parameters in physSetLinksetParams: {1}", LogHeader, e);
+                                }
+                            }
+                        }
+                        // Something changed so a rebuild is in order
+                        Refresh(child);
+                    }
+                }
+            break;
+            default:
+                ret = base.Extension(pFunct, pParams);
+                break;
+        }
+        return ret;
+    }
+
+    // Bullet constraints keep some limit parameters for each linear and angular axis.
+    // Setting same is easier if there is an easy way to see all or types.
+    // This routine returns the array limits for the set of axis.
+    private void GetAxisRange(int rangeSpec, out int low, out int high)
+    {
+        switch (rangeSpec)
+        {
+            case ExtendedPhysics.PHYS_AXIS_LINEAR_ALL:
+                low = 0;
+                high = 2;
+                break;
+            case ExtendedPhysics.PHYS_AXIS_ANGULAR_ALL:
+                low = 3;
+                high = 5;
+                break;
+            case ExtendedPhysics.PHYS_AXIS_ALL:
+                low = 0;
+                high = 5;
+                break;
+            default:
+                low = high = rangeSpec;
+                break;
+        }
+        return;
+    }
+    #endregion // Extension
+
 }
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSParam.cs b/OpenSim/Region/Physics/BulletSPlugin/BSParam.cs
index fcb892a..43aa63e 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSParam.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSParam.cs
@@ -134,6 +134,7 @@ public static class BSParam
     public static float AvatarHeightMidFudge { get; private set; }
     public static float AvatarHeightHighFudge { get; private set; }
         public static float AvatarContactProcessingThreshold { get; private set; }
+    public static float AvatarStopZeroThreshold { get; private set; }
         public static int AvatarJumpFrames { get; private set; }
         public static float AvatarBelowGroundUpCorrectionMeters { get; private set; }
         public static float AvatarStepHeight { get; private set; }
@@ -570,11 +571,13 @@ public static class BSParam
         new ParameterDefn<float>("AvatarHeightLowFudge", "A fudge factor to make small avatars stand on the ground",
             -0.2f ),
         new ParameterDefn<float>("AvatarHeightMidFudge", "A fudge distance to adjust average sized avatars to be standing on ground",
-            0.2f ),
+            0.1f ),
         new ParameterDefn<float>("AvatarHeightHighFudge", "A fudge factor to make tall avatars stand on the ground",
-            0.2f ),
+            0.1f ),
             new ParameterDefn<float>("AvatarContactProcessingThreshold", "Distance from capsule to check for collisions",
             0.1f ),
+            new ParameterDefn<float>("AvatarStopZeroThreshold", "Movement velocity below which avatar is assumed to be stopped",
+            0.1f ),
             new ParameterDefn<float>("AvatarBelowGroundUpCorrectionMeters", "Meters to move avatar up if it seems to be below ground",
             1.0f ),
             new ParameterDefn<int>("AvatarJumpFrames", "Number of frames to allow jump forces. Changes jump height.",
@@ -683,21 +686,21 @@ public static class BSParam
             0f ),
 
             new ParameterDefn<float>("BHullMaxVerticesPerHull", "Bullet impl: max number of vertices per created hull",
-            100f ),
+            200f ),
             new ParameterDefn<float>("BHullMinClusters", "Bullet impl: minimum number of hulls to create per mesh",
-            2f ),
+            10f ),
             new ParameterDefn<float>("BHullCompacityWeight", "Bullet impl: weight factor for how compact to make hulls",
-            0.1f ),
+            20f ),
             new ParameterDefn<float>("BHullVolumeWeight", "Bullet impl: weight factor for volume in created hull",
-            0f ),
+            0.1f ),
             new ParameterDefn<float>("BHullConcavity", "Bullet impl: weight factor for how convex a created hull can be",
-            100f ),
+            10f ),
             new ParameterDefn<bool>("BHullAddExtraDistPoints", "Bullet impl: whether to add extra vertices for long distance vectors",
-            false ),
+            true ),
             new ParameterDefn<bool>("BHullAddNeighboursDistPoints", "Bullet impl: whether to add extra vertices between neighbor hulls",
-            false ),
+            true ),
             new ParameterDefn<bool>("BHullAddFacesPoints", "Bullet impl: whether to add extra vertices to break up hull faces",
-            false ),
+            true ),
             new ParameterDefn<bool>("BHullShouldAdjustCollisionMargin", "Bullet impl: whether to shrink resulting hulls to account for collision margin",
             false ),
 
@@ -826,7 +829,7 @@ public static class BSParam
     private static void ResetConstraintSolverTainted(BSScene pPhysScene, float v)
     {
         BSScene physScene = pPhysScene;
-        physScene.TaintedObject("BSParam.ResetConstraintSolver", delegate()
+        physScene.TaintedObject(BSScene.DetailLogZero, "BSParam.ResetConstraintSolver", delegate()
         {
             physScene.PE.ResetConstraintSolver(physScene.World);
         });
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
index 9dc52d5..f89b376 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
@@ -121,7 +121,7 @@ public abstract class BSPhysObject : PhysicsActor
     public virtual void Destroy()
     {
         PhysicalActors.Enable(false);
-        PhysScene.TaintedObject("BSPhysObject.Destroy", delegate()
+        PhysScene.TaintedObject(LocalID, "BSPhysObject.Destroy", delegate()
         {
             PhysicalActors.Dispose();
         });
@@ -300,8 +300,19 @@ public abstract class BSPhysObject : PhysicsActor
     // Called in taint-time!!
     public void ActivateIfPhysical(bool forceIt)
     {
-        if (IsPhysical && PhysBody.HasPhysicalBody)
-            PhysScene.PE.Activate(PhysBody, forceIt);
+        if (PhysBody.HasPhysicalBody)
+        {
+            if (IsPhysical)
+            {
+                // Physical objects might need activating
+                PhysScene.PE.Activate(PhysBody, forceIt);
+            }
+            else
+            {
+                // Clear the collision cache since we've changed some properties.
+                PhysScene.PE.ClearCollisionProxyCache(PhysScene.World, PhysBody);
+            }
+        }
     }
 
     // 'actors' act on the physical object to change or constrain its motion. These can range from
@@ -509,7 +520,7 @@ public abstract class BSPhysObject : PhysicsActor
             // make sure first collision happens
             NextCollisionOkTime = Util.EnvironmentTickCountSubtract(SubscribedEventsMs);
 
-            PhysScene.TaintedObject(TypeName+".SubscribeEvents", delegate()
+            PhysScene.TaintedObject(LocalID, TypeName+".SubscribeEvents", delegate()
             {
                 if (PhysBody.HasPhysicalBody)
                     CurrentCollisionFlags = PhysScene.PE.AddToCollisionFlags(PhysBody, CollisionFlags.BS_SUBSCRIBE_COLLISION_EVENTS);
@@ -524,7 +535,7 @@ public abstract class BSPhysObject : PhysicsActor
     public override void UnSubscribeEvents() {
         // DetailLog("{0},{1}.UnSubscribeEvents,unsubscribing", LocalID, TypeName);
         SubscribedEventsMs = 0;
-        PhysScene.TaintedObject(TypeName+".UnSubscribeEvents", delegate()
+        PhysScene.TaintedObject(LocalID, TypeName+".UnSubscribeEvents", delegate()
         {
             // Make sure there is a body there because sometimes destruction happens in an un-ideal order.
             if (PhysBody.HasPhysicalBody)
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
index d5b999d..15b7090 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
@@ -41,7 +41,7 @@ namespace OpenSim.Region.Physics.BulletSPlugin
     [Serializable]
 public class BSPrim : BSPhysObject
 {
-    private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+    protected static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
     private static readonly string LogHeader = "[BULLETS PRIM]";
 
     // _size is what the user passed. Scale is what we pass to the physics engine with the mesh.
@@ -102,7 +102,7 @@ public class BSPrim : BSPhysObject
 
         // DetailLog("{0},BSPrim.constructor,call", LocalID);
         // do the actual object creation at taint time
-        PhysScene.TaintedObject("BSPrim.create", delegate()
+        PhysScene.TaintedObject(LocalID, "BSPrim.create", delegate()
         {
             // Make sure the object is being created with some sanity.
             ExtremeSanityCheck(true /* inTaintTime */);
@@ -126,7 +126,7 @@ public class BSPrim : BSPhysObject
         // Undo any vehicle properties
         this.VehicleType = (int)Vehicle.TYPE_NONE;
 
-        PhysScene.TaintedObject("BSPrim.Destroy", delegate()
+        PhysScene.TaintedObject(LocalID, "BSPrim.Destroy", delegate()
         {
             DetailLog("{0},BSPrim.Destroy,taint,", LocalID);
             // If there are physical body and shape, release my use of same.
@@ -161,7 +161,7 @@ public class BSPrim : BSPhysObject
     }
     public override bool ForceBodyShapeRebuild(bool inTaintTime)
     {
-        PhysScene.TaintedObject(inTaintTime, "BSPrim.ForceBodyShapeRebuild", delegate()
+        PhysScene.TaintedObject(inTaintTime, LocalID, "BSPrim.ForceBodyShapeRebuild", delegate()
         {
             _mass = CalculateMass();   // changing the shape changes the mass
             CreateGeomAndObject(true);
@@ -178,7 +178,7 @@ public class BSPrim : BSPhysObject
             if (value != _isSelected)
             {
                 _isSelected = value;
-                PhysScene.TaintedObject("BSPrim.setSelected", delegate()
+                PhysScene.TaintedObject(LocalID, "BSPrim.setSelected", delegate()
                 {
                     DetailLog("{0},BSPrim.selected,taint,selected={1}", LocalID, _isSelected);
                     SetObjectDynamic(false);
@@ -224,7 +224,7 @@ public class BSPrim : BSPhysObject
         _rotationalVelocity = OMV.Vector3.Zero;
 
         // Zero some other properties in the physics engine
-        PhysScene.TaintedObject(inTaintTime, "BSPrim.ZeroMotion", delegate()
+        PhysScene.TaintedObject(inTaintTime, LocalID, "BSPrim.ZeroMotion", delegate()
         {
             if (PhysBody.HasPhysicalBody)
                 PhysScene.PE.ClearAllForces(PhysBody);
@@ -234,7 +234,7 @@ public class BSPrim : BSPhysObject
     {
         _rotationalVelocity = OMV.Vector3.Zero;
         // Zero some other properties in the physics engine
-        PhysScene.TaintedObject(inTaintTime, "BSPrim.ZeroMotion", delegate()
+        PhysScene.TaintedObject(inTaintTime, LocalID, "BSPrim.ZeroMotion", delegate()
         {
             // DetailLog("{0},BSPrim.ZeroAngularMotion,call,rotVel={1}", LocalID, _rotationalVelocity);
             if (PhysBody.HasPhysicalBody)
@@ -262,7 +262,7 @@ public class BSPrim : BSPhysObject
         });
 
         // Update parameters so the new actor's Refresh() action is called at the right time.
-        PhysScene.TaintedObject("BSPrim.LockAngularMotion", delegate()
+        PhysScene.TaintedObject(LocalID, "BSPrim.LockAngularMotion", delegate()
         {
             UpdatePhysicalParameters();
         });
@@ -287,7 +287,7 @@ public class BSPrim : BSPhysObject
             RawPosition = value;
             PositionSanityCheck(false);
 
-            PhysScene.TaintedObject("BSPrim.setPosition", delegate()
+            PhysScene.TaintedObject(LocalID, "BSPrim.setPosition", delegate()
             {
                 DetailLog("{0},BSPrim.SetPosition,taint,pos={1},orient={2}", LocalID, RawPosition, RawOrientation);
                 ForcePosition = RawPosition;
@@ -531,7 +531,7 @@ public class BSPrim : BSPhysObject
         set {
             Vehicle type = (Vehicle)value;
 
-            PhysScene.TaintedObject("setVehicleType", delegate()
+            PhysScene.TaintedObject(LocalID, "setVehicleType", delegate()
             {
                 // Some vehicle scripts change vehicle type on the fly as an easy way to
                 //    change all the parameters. Like a plane changing to CAR when on the
@@ -561,7 +561,7 @@ public class BSPrim : BSPhysObject
     }
     public override void VehicleFloatParam(int param, float value)
     {
-        PhysScene.TaintedObject("BSPrim.VehicleFloatParam", delegate()
+        PhysScene.TaintedObject(LocalID, "BSPrim.VehicleFloatParam", delegate()
         {
             BSDynamics vehicleActor = GetVehicleActor(true /* createIfNone */);
             if (vehicleActor != null)
@@ -573,7 +573,7 @@ public class BSPrim : BSPhysObject
     }
     public override void VehicleVectorParam(int param, OMV.Vector3 value)
     {
-        PhysScene.TaintedObject("BSPrim.VehicleVectorParam", delegate()
+        PhysScene.TaintedObject(LocalID, "BSPrim.VehicleVectorParam", delegate()
         {
             BSDynamics vehicleActor = GetVehicleActor(true /* createIfNone */);
             if (vehicleActor != null)
@@ -585,7 +585,7 @@ public class BSPrim : BSPhysObject
     }
     public override void VehicleRotationParam(int param, OMV.Quaternion rotation)
     {
-        PhysScene.TaintedObject("BSPrim.VehicleRotationParam", delegate()
+        PhysScene.TaintedObject(LocalID, "BSPrim.VehicleRotationParam", delegate()
         {
             BSDynamics vehicleActor = GetVehicleActor(true /* createIfNone */);
             if (vehicleActor != null)
@@ -597,7 +597,7 @@ public class BSPrim : BSPhysObject
     }
     public override void VehicleFlags(int param, bool remove)
     {
-        PhysScene.TaintedObject("BSPrim.VehicleFlags", delegate()
+        PhysScene.TaintedObject(LocalID, "BSPrim.VehicleFlags", delegate()
         {
             BSDynamics vehicleActor = GetVehicleActor(true /* createIfNone */);
             if (vehicleActor != null)
@@ -613,7 +613,7 @@ public class BSPrim : BSPhysObject
         if (_isVolumeDetect != newValue)
         {
             _isVolumeDetect = newValue;
-            PhysScene.TaintedObject("BSPrim.SetVolumeDetect", delegate()
+            PhysScene.TaintedObject(LocalID, "BSPrim.SetVolumeDetect", delegate()
             {
                 // DetailLog("{0},setVolumeDetect,taint,volDetect={1}", LocalID, _isVolumeDetect);
                 SetObjectDynamic(true);
@@ -628,7 +628,7 @@ public class BSPrim : BSPhysObject
     public override void SetMaterial(int material)
     {
         base.SetMaterial(material);
-        PhysScene.TaintedObject("BSPrim.SetMaterial", delegate()
+        PhysScene.TaintedObject(LocalID, "BSPrim.SetMaterial", delegate()
         {
             UpdatePhysicalParameters();
         });
@@ -641,7 +641,7 @@ public class BSPrim : BSPhysObject
             if (base.Friction != value)
             {
                 base.Friction = value;
-                PhysScene.TaintedObject("BSPrim.setFriction", delegate()
+                PhysScene.TaintedObject(LocalID, "BSPrim.setFriction", delegate()
                 {
                     UpdatePhysicalParameters();
                 });
@@ -656,7 +656,7 @@ public class BSPrim : BSPhysObject
             if (base.Restitution != value)
             {
                 base.Restitution = value;
-                PhysScene.TaintedObject("BSPrim.setRestitution", delegate()
+                PhysScene.TaintedObject(LocalID, "BSPrim.setRestitution", delegate()
                 {
                     UpdatePhysicalParameters();
                 });
@@ -673,7 +673,7 @@ public class BSPrim : BSPhysObject
             if (base.Density != value)
             {
                 base.Density = value;
-                PhysScene.TaintedObject("BSPrim.setDensity", delegate()
+                PhysScene.TaintedObject(LocalID, "BSPrim.setDensity", delegate()
                 {
                     UpdatePhysicalParameters();
                 });
@@ -688,7 +688,7 @@ public class BSPrim : BSPhysObject
             if (base.GravModifier != value)
             {
                 base.GravModifier = value;
-                PhysScene.TaintedObject("BSPrim.setGravityModifier", delegate()
+                PhysScene.TaintedObject(LocalID, "BSPrim.setGravityModifier", delegate()
                 {
                     UpdatePhysicalParameters();
                 });
@@ -699,7 +699,7 @@ public class BSPrim : BSPhysObject
         get { return RawVelocity; }
         set {
             RawVelocity = value;
-            PhysScene.TaintedObject("BSPrim.setVelocity", delegate()
+            PhysScene.TaintedObject(LocalID, "BSPrim.setVelocity", delegate()
             {
                 // DetailLog("{0},BSPrim.SetVelocity,taint,vel={1}", LocalID, RawVelocity);
                 ForceVelocity = RawVelocity;
@@ -745,7 +745,7 @@ public class BSPrim : BSPhysObject
                 return;
             RawOrientation = value;
 
-            PhysScene.TaintedObject("BSPrim.setOrientation", delegate()
+            PhysScene.TaintedObject(LocalID, "BSPrim.setOrientation", delegate()
             {
                 ForceOrientation = RawOrientation;
             });
@@ -776,7 +776,7 @@ public class BSPrim : BSPhysObject
             if (_isPhysical != value)
             {
                 _isPhysical = value;
-                PhysScene.TaintedObject("BSPrim.setIsPhysical", delegate()
+                PhysScene.TaintedObject(LocalID, "BSPrim.setIsPhysical", delegate()
                 {
                     DetailLog("{0},setIsPhysical,taint,isPhys={1}", LocalID, _isPhysical);
                     SetObjectDynamic(true);
@@ -1020,7 +1020,7 @@ public class BSPrim : BSPhysObject
     public override bool FloatOnWater {
         set {
             _floatOnWater = value;
-            PhysScene.TaintedObject("BSPrim.setFloatOnWater", delegate()
+            PhysScene.TaintedObject(LocalID, "BSPrim.setFloatOnWater", delegate()
             {
                 if (_floatOnWater)
                     CurrentCollisionFlags = PhysScene.PE.AddToCollisionFlags(PhysBody, CollisionFlags.BS_FLOATS_ON_WATER);
@@ -1037,7 +1037,7 @@ public class BSPrim : BSPhysObject
             _rotationalVelocity = value;
             Util.ClampV(_rotationalVelocity, BSParam.MaxAngularVelocity);
             // m_log.DebugFormat("{0}: RotationalVelocity={1}", LogHeader, _rotationalVelocity);
-            PhysScene.TaintedObject("BSPrim.setRotationalVelocity", delegate()
+            PhysScene.TaintedObject(LocalID, "BSPrim.setRotationalVelocity", delegate()
             {
                 ForceRotationalVelocity = _rotationalVelocity;
             });
@@ -1068,7 +1068,7 @@ public class BSPrim : BSPhysObject
         get { return _buoyancy; }
         set {
             _buoyancy = value;
-            PhysScene.TaintedObject("BSPrim.setBuoyancy", delegate()
+            PhysScene.TaintedObject(LocalID, "BSPrim.setBuoyancy", delegate()
             {
                 ForceBuoyancy = _buoyancy;
             });
@@ -1142,7 +1142,7 @@ public class BSPrim : BSPhysObject
                 // DetailLog("{0},BSPrim.addForce,call,force={1}", LocalID, addForce);
 
                 OMV.Vector3 addForce = force;
-                PhysScene.TaintedObject(inTaintTime, "BSPrim.AddForce", delegate()
+                PhysScene.TaintedObject(inTaintTime, LocalID, "BSPrim.AddForce", delegate()
                 {
                     // Bullet adds this central force to the total force for this tick.
                     // Deep down in Bullet:
@@ -1172,7 +1172,7 @@ public class BSPrim : BSPhysObject
                 OMV.Vector3 addImpulse = Util.ClampV(impulse, BSParam.MaxAddForceMagnitude);
                 // DetailLog("{0},BSPrim.addForceImpulse,call,impulse={1}", LocalID, impulse);
 
-                PhysScene.TaintedObject(inTaintTime, "BSPrim.AddImpulse", delegate()
+                PhysScene.TaintedObject(inTaintTime, LocalID, "BSPrim.AddImpulse", delegate()
                 {
                     // Bullet adds this impulse immediately to the velocity
                     DetailLog("{0},BSPrim.addForceImpulse,taint,impulseforce={1}", LocalID, addImpulse);
@@ -1197,7 +1197,7 @@ public class BSPrim : BSPhysObject
         if (force.IsFinite())
         {
             OMV.Vector3 angForce = force;
-            PhysScene.TaintedObject(inTaintTime, "BSPrim.AddAngularForce", delegate()
+            PhysScene.TaintedObject(inTaintTime, LocalID, "BSPrim.AddAngularForce", delegate()
             {
                 if (PhysBody.HasPhysicalBody)
                 {
@@ -1221,7 +1221,7 @@ public class BSPrim : BSPhysObject
     public void ApplyTorqueImpulse(OMV.Vector3 impulse, bool inTaintTime)
     {
         OMV.Vector3 applyImpulse = impulse;
-        PhysScene.TaintedObject(inTaintTime, "BSPrim.ApplyTorqueImpulse", delegate()
+        PhysScene.TaintedObject(inTaintTime, LocalID, "BSPrim.ApplyTorqueImpulse", delegate()
         {
             if (PhysBody.HasPhysicalBody)
             {
@@ -1552,39 +1552,10 @@ public class BSPrim : BSPhysObject
     #region Extension
     public override object Extension(string pFunct, params object[] pParams)
     {
+        DetailLog("{0} BSPrim.Extension,op={1}", LocalID, pFunct);
         object ret = null;
         switch (pFunct)
         {
-            case BSScene.PhysFunctGetLinksetType:
-            {
-                BSPrimLinkable myHandle = this as BSPrimLinkable;
-                if (myHandle != null)
-                {
-                    ret = (object)myHandle.LinksetType;
-                }
-                m_log.DebugFormat("{0} Extension.physGetLinksetType, type={1}", LogHeader, ret);
-                break;
-            }
-            case BSScene.PhysFunctSetLinksetType:
-            {
-                if (pParams.Length > 0)
-                {
-                    BSLinkset.LinksetImplementation linksetType = (BSLinkset.LinksetImplementation)pParams[0];
-                    BSPrimLinkable myHandle = this as BSPrimLinkable;
-                    if (myHandle != null && myHandle.Linkset.IsRoot(myHandle))
-                    {
-                        PhysScene.TaintedObject("BSPrim.PhysFunctSetLinksetType", delegate()
-                        {
-                            // Cause the linkset type to change
-                            m_log.DebugFormat("{0} Extension.physSetLinksetType, oldType={1}, newType={2}",
-                                                LogHeader, myHandle.Linkset.LinksetImpl, linksetType);
-                            myHandle.ConvertLinkset(linksetType);
-                        });
-                    }
-                    ret = (object)(int)linksetType;
-                }
-                break;
-            }
             default:
                 ret = base.Extension(pFunct, pParams);
                 break;
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPrimLinkable.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPrimLinkable.cs
index 7179a6d..126b146 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPrimLinkable.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPrimLinkable.cs
@@ -30,6 +30,7 @@ using System.Linq;
 using System.Text;
 
 using OpenSim.Framework;
+using OpenSim.Region.OptionalModules.Scripting;
 
 using OMV = OpenMetaverse;
 
@@ -41,6 +42,8 @@ public class BSPrimLinkable : BSPrimDisplaced
     //    operations necessary for keeping the linkset created and, additionally, this
     //    calls the linkset implementation for its creation and management.
 
+    private static readonly string LogHeader = "[BULLETS PRIMLINKABLE]";
+
     // This adds the overrides for link() and delink() so the prim is linkable.
 
     public BSLinkset Linkset { get; set; }
@@ -58,15 +61,12 @@ public class BSPrimLinkable : BSPrimDisplaced
 
         Linkset = BSLinkset.Factory(PhysScene, this);
 
-        PhysScene.TaintedObject("BSPrimLinksetCompound.Refresh", delegate()
-        {
-            Linkset.Refresh(this);
-        });
+        Linkset.Refresh(this);
     }
 
     public override void Destroy()
     {
-        Linkset = Linkset.RemoveMeFromLinkset(this);
+        Linkset = Linkset.RemoveMeFromLinkset(this, false /* inTaintTime */);
         base.Destroy();
     }
 
@@ -80,7 +80,7 @@ public class BSPrimLinkable : BSPrimDisplaced
 
             Linkset = parent.Linkset.AddMeToLinkset(this);
 
-            DetailLog("{0},BSPrimLinkset.link,call,parentBefore={1}, childrenBefore=={2}, parentAfter={3}, childrenAfter={4}",
+            DetailLog("{0},BSPrimLinkable.link,call,parentBefore={1}, childrenBefore=={2}, parentAfter={3}, childrenAfter={4}",
                 LocalID, parentBefore.LocalID, childrenBefore, Linkset.LinksetRoot.LocalID, Linkset.NumberOfChildren);
         }
         return;
@@ -94,9 +94,9 @@ public class BSPrimLinkable : BSPrimDisplaced
         BSPhysObject parentBefore = Linkset.LinksetRoot;        // DEBUG
         int childrenBefore = Linkset.NumberOfChildren;          // DEBUG
 
-        Linkset = Linkset.RemoveMeFromLinkset(this);
+        Linkset = Linkset.RemoveMeFromLinkset(this, false /* inTaintTime*/);
 
-        DetailLog("{0},BSPrimLinkset.delink,parentBefore={1},childrenBefore={2},parentAfter={3},childrenAfter={4}, ",
+        DetailLog("{0},BSPrimLinkable.delink,parentBefore={1},childrenBefore={2},parentAfter={3},childrenAfter={4}, ",
             LocalID, parentBefore.LocalID, childrenBefore, Linkset.LinksetRoot.LocalID, Linkset.NumberOfChildren);
         return;
     }
@@ -108,7 +108,7 @@ public class BSPrimLinkable : BSPrimDisplaced
         set
         {
             base.Position = value;
-            PhysScene.TaintedObject("BSPrimLinkset.setPosition", delegate()
+            PhysScene.TaintedObject(LocalID, "BSPrimLinkable.setPosition", delegate()
             {
                 Linkset.UpdateProperties(UpdatedProperties.Position, this);
             });
@@ -122,7 +122,7 @@ public class BSPrimLinkable : BSPrimDisplaced
         set
         {
             base.Orientation = value;
-            PhysScene.TaintedObject("BSPrimLinkset.setOrientation", delegate()
+            PhysScene.TaintedObject(LocalID, "BSPrimLinkable.setOrientation", delegate()
             {
                 Linkset.UpdateProperties(UpdatedProperties.Orientation, this);
             });
@@ -180,7 +180,7 @@ public class BSPrimLinkable : BSPrimDisplaced
     // Do any filtering/modification needed for linksets.
     public override void UpdateProperties(EntityProperties entprop)
     {
-        if (Linkset.IsRoot(this))
+        if (Linkset.IsRoot(this) || Linkset.ShouldReportPropertyUpdates(this))
         {
             // Properties are only updated for the roots of a linkset.
             // TODO: this will have to change when linksets are articulated.
@@ -240,6 +240,8 @@ public class BSPrimLinkable : BSPrimDisplaced
         bool ret = false;
         if (LinksetType != newType)
         {
+            DetailLog("{0},BSPrimLinkable.ConvertLinkset,oldT={1},newT={2}", LocalID, LinksetType, newType);
+
             // Set the implementation type first so the call to BSLinkset.Factory gets the new type.
             this.LinksetType = newType;
 
@@ -263,7 +265,10 @@ public class BSPrimLinkable : BSPrimDisplaced
             // Remove the children from the old linkset and add to the new (will be a new instance from the factory)
             foreach (BSPrimLinkable child in children)
             {
-                oldLinkset.RemoveMeFromLinkset(child);
+                oldLinkset.RemoveMeFromLinkset(child, true /*inTaintTime*/);
+            }
+            foreach (BSPrimLinkable child in children)
+            {
                 newLinkset.AddMeToLinkset(child);
                 child.Linkset = newLinkset;
             }
@@ -274,5 +279,70 @@ public class BSPrimLinkable : BSPrimDisplaced
         }
         return ret;
     }
+
+    #region Extension
+    public override object Extension(string pFunct, params object[] pParams)
+    {
+        DetailLog("{0} BSPrimLinkable.Extension,op={1},nParam={2}", LocalID, pFunct, pParams.Length);
+        object ret = null;
+        switch (pFunct)
+        {
+            // physGetLinksetType();
+            // pParams = [ BSPhysObject root, null ]
+            case ExtendedPhysics.PhysFunctGetLinksetType:
+            {
+                ret = (object)LinksetType;
+                DetailLog("{0},BSPrimLinkable.Extension.physGetLinksetType,type={1}", LocalID, ret);
+                break;
+            }
+            // physSetLinksetType(type);
+            // pParams = [ BSPhysObject root, null, integer type ]
+            case ExtendedPhysics.PhysFunctSetLinksetType:
+            {
+                if (pParams.Length > 2)
+                {
+                    BSLinkset.LinksetImplementation linksetType = (BSLinkset.LinksetImplementation)pParams[2];
+                    if (Linkset.IsRoot(this))
+                    {
+                        PhysScene.TaintedObject(LocalID, "BSPrim.PhysFunctSetLinksetType", delegate()
+                        {
+                            // Cause the linkset type to change
+                            DetailLog("{0},BSPrimLinkable.Extension.physSetLinksetType, oldType={1},newType={2}",
+                                                LocalID, Linkset.LinksetImpl, linksetType);
+                            ConvertLinkset(linksetType);
+                        });
+                    }
+                    ret = (object)(int)linksetType;
+                }
+                break;
+            }
+            // physChangeLinkType(linknum, typeCode);
+            // pParams = [ BSPhysObject root, BSPhysObject child, integer linkType ]
+            case ExtendedPhysics.PhysFunctChangeLinkType:
+            {
+                ret = Linkset.Extension(pFunct, pParams);
+                break;
+            }
+            // physGetLinkType(linknum);
+            // pParams = [ BSPhysObject root, BSPhysObject child ]
+            case ExtendedPhysics.PhysFunctGetLinkType:
+            {
+                ret = Linkset.Extension(pFunct, pParams);
+                break;
+            }
+            // physChangeLinkParams(linknum, [code, value, code, value, ...]);
+            // pParams = [ BSPhysObject root, BSPhysObject child, object[] [ string op, object opParam, string op, object opParam, ... ] ]
+            case ExtendedPhysics.PhysFunctChangeLinkParams:
+            {
+                ret = Linkset.Extension(pFunct, pParams);
+                break;
+            }
+            default:
+                ret = base.Extension(pFunct, pParams);
+                break;
+        }
+        return ret;
+    }
+    #endregion  // Extension
 }
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs b/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
index c92c9b9..b3dfa41 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
@@ -157,12 +157,20 @@ public sealed class BSScene : PhysicsScene, IPhysicsParameters
     public delegate void TaintCallback();
     private struct TaintCallbackEntry
     {
+        public String originator;
         public String ident;
         public TaintCallback callback;
-        public TaintCallbackEntry(string i, TaintCallback c)
+        public TaintCallbackEntry(string pIdent, TaintCallback pCallBack)
         {
-            ident = i;
-            callback = c;
+            originator = BSScene.DetailLogZero;
+            ident = pIdent;
+            callback = pCallBack;
+        }
+        public TaintCallbackEntry(string pOrigin, string pIdent, TaintCallback pCallBack)
+        {
+            originator = pOrigin;
+            ident = pIdent;
+            callback = pCallBack;
         }
     }
     private Object _taintLock = new Object();   // lock for using the next object
@@ -867,18 +875,9 @@ public sealed class BSScene : PhysicsScene, IPhysicsParameters
     public override bool IsThreaded { get { return false;  } }
 
     #region Extensions
-    // =============================================================
-    // Per scene functions. See below.
-
-    // Per avatar functions. See BSCharacter.
-
-    // Per prim functions. See BSPrim.
-    public const string PhysFunctGetLinksetType = "BulletSim.GetLinksetType";
-    public const string PhysFunctSetLinksetType = "BulletSim.SetLinksetType";
-    // =============================================================
-
     public override object Extension(string pFunct, params object[] pParams)
     {
+        DetailLog("{0} BSScene.Extension,op={1}", DetailLogZero, pFunct);
         return base.Extension(pFunct, pParams);
     }
     #endregion // Extensions
@@ -897,26 +896,37 @@ public sealed class BSScene : PhysicsScene, IPhysicsParameters
     // 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 TaintedObject(string pOriginator, string pIdent, TaintCallback pCallback)
     {
-        if (!m_initialized) return;
-
-        lock (_taintLock)
-        {
-            _taintOperations.Add(new TaintCallbackEntry(ident, callback));
-        }
-
-        return;
+        TaintedObject(false /*inTaintTime*/, pOriginator, pIdent, pCallback);
+    }
+    public void TaintedObject(uint pOriginator, String pIdent, TaintCallback pCallback)
+    {
+        TaintedObject(false /*inTaintTime*/, m_physicsLoggingEnabled ? pOriginator.ToString() : BSScene.DetailLogZero, pIdent, pCallback);
+    }
+    public void TaintedObject(bool inTaintTime, String pIdent, TaintCallback pCallback)
+    {
+        TaintedObject(inTaintTime, BSScene.DetailLogZero, pIdent, pCallback);
+    }
+    public void TaintedObject(bool inTaintTime, uint pOriginator, String pIdent, TaintCallback pCallback)
+    {
+        TaintedObject(inTaintTime, m_physicsLoggingEnabled ? pOriginator.ToString() : BSScene.DetailLogZero, pIdent, pCallback);
     }
-
     // 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)
+    public void TaintedObject(bool inTaintTime, string pOriginator, string pIdent, TaintCallback pCallback)
     {
+        if (!m_initialized) return;
+
         if (inTaintTime)
-            callback();
+            pCallback();
         else
-            TaintedObject(ident, callback);
+        {
+            lock (_taintLock)
+            {
+                _taintOperations.Add(new TaintCallbackEntry(pOriginator, pIdent, pCallback));
+            }
+        }
     }
 
     private void TriggerPreStepEvent(float timeStep)
@@ -960,7 +970,7 @@ public sealed class BSScene : PhysicsScene, IPhysicsParameters
             {
                 try
                 {
-                    DetailLog("{0},BSScene.ProcessTaints,doTaint,id={1}", DetailLogZero, tcbe.ident); // DEBUG DEBUG DEBUG
+                    DetailLog("{0},BSScene.ProcessTaints,doTaint,id={1}", tcbe.originator, tcbe.ident); // DEBUG DEBUG DEBUG
                     tcbe.callback();
                 }
                 catch (Exception e)
@@ -977,10 +987,11 @@ public sealed class BSScene : PhysicsScene, IPhysicsParameters
     //     will replace any previous operation by the same object.
     public void PostTaintObject(String ident, uint ID, TaintCallback callback)
     {
-        string uniqueIdent = ident + "-" + ID.ToString();
+        string IDAsString = ID.ToString();
+        string uniqueIdent = ident + "-" + IDAsString;
         lock (_taintLock)
         {
-            _postTaintOperations[uniqueIdent] = new TaintCallbackEntry(uniqueIdent, callback);
+            _postTaintOperations[uniqueIdent] = new TaintCallbackEntry(IDAsString, uniqueIdent, callback);
         }
 
         return;
@@ -1090,7 +1101,7 @@ public sealed class BSScene : PhysicsScene, IPhysicsParameters
         string xval = val;
         List<uint> xlIDs = lIDs;
         string xparm = parm;
-        TaintedObject("BSScene.UpdateParameterSet", delegate() {
+        TaintedObject(DetailLogZero, "BSScene.UpdateParameterSet", delegate() {
             BSParam.ParameterDefnBase thisParam;
             if (BSParam.TryGetParameter(xparm, out thisParam))
             {
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index f05aaa9..8892b69 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -8900,8 +8900,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             int idx=0;
             while (idx < rules.Length)
             {
-                int code=(int)rules.GetLSLIntegerItem(idx++);
-                int remain=rules.Length-idx;
+                int code = (int)rules.GetLSLIntegerItem(idx++);
+                int remain = rules.Length - idx;
 
                 switch (code)
                 {
@@ -8974,7 +8974,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                                 break;
 
                             case ScriptBaseClass.PRIM_TYPE_SCULPT:
-                                res.Add(Shape.SculptTexture.ToString());
+                                res.Add(new LSL_String(Shape.SculptTexture.ToString()));
                                 res.Add(new LSL_Integer(Shape.SculptType));
                                 break;
 
@@ -9316,7 +9316,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         ));
                         break;
                     case (int)ScriptBaseClass.PRIM_LINK_TARGET:
-                        if(remain < 3)
+
+                        // TODO: Should be issuing a runtime script warning in this case.
+                        if (remain < 2)
                             return null;
 
                         return rules.GetSublist(idx, -1);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
index f4e4f44..5c57971 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
@@ -3043,7 +3043,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         sp.ControllingClient.Kick(alert);
 
                     // ...and close on our side
-                    sp.Scene.IncomingCloseAgent(sp.UUID, false);
+                    sp.Scene.CloseAgent(sp.UUID, false);
                 }
             });
         }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Tests/LSL_ApiObjectTests.cs b/OpenSim/Region/ScriptEngine/Shared/Tests/LSL_ApiObjectTests.cs
new file mode 100644
index 0000000..ed61dc0
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Tests/LSL_ApiObjectTests.cs
@@ -0,0 +1,399 @@
+/*
+ * 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 System.Text;
+using log4net;
+using Nini.Config;
+using NUnit.Framework;
+using OpenMetaverse;
+using OpenMetaverse.Assets;
+using OpenMetaverse.StructuredData;
+using OpenSim.Framework;
+using OpenSim.Region.CoreModules.Avatar.AvatarFactory;
+using OpenSim.Region.OptionalModules.World.NPC;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.ScriptEngine.Shared;
+using OpenSim.Region.ScriptEngine.Shared.Api;
+using OpenSim.Region.ScriptEngine.Shared.Instance;
+using OpenSim.Region.ScriptEngine.Shared.ScriptBase;
+using OpenSim.Services.Interfaces;
+using OpenSim.Tests.Common;
+using OpenSim.Tests.Common.Mock;
+using LSL_Integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
+using LSL_List = OpenSim.Region.ScriptEngine.Shared.LSL_Types.list;
+
+namespace OpenSim.Region.ScriptEngine.Shared.Tests
+{
+    [TestFixture]
+    public class LSL_ApiObjectTests : OpenSimTestCase
+    {
+        private const double VECTOR_COMPONENT_ACCURACY = 0.0000005d;
+        private const float FLOAT_ACCURACY = 0.00005f;
+
+        protected Scene m_scene;
+        protected XEngine.XEngine m_engine;
+
+        [SetUp]
+        public override void SetUp()
+        {
+            base.SetUp();
+
+            IConfigSource initConfigSource = new IniConfigSource();
+            IConfig config = initConfigSource.AddConfig("XEngine");
+            config.Set("Enabled", "true");
+
+            m_scene = new SceneHelpers().SetupScene();
+            SceneHelpers.SetupSceneModules(m_scene, initConfigSource);
+
+            m_engine = new XEngine.XEngine();
+            m_engine.Initialise(initConfigSource);
+            m_engine.AddRegion(m_scene);
+        }
+
+        [Test]
+        public void TestllGetLinkPrimitiveParams()
+        {
+            TestHelpers.InMethod();
+            TestHelpers.EnableLogging();
+
+            UUID ownerId = TestHelpers.ParseTail(0x1);
+
+            SceneObjectGroup grp1 = SceneHelpers.CreateSceneObject(2, ownerId, "grp1-", 0x10);
+            grp1.AbsolutePosition = new Vector3(10, 11, 12);
+            m_scene.AddSceneObject(grp1);
+
+            LSL_Api apiGrp1 = new LSL_Api();
+            apiGrp1.Initialize(m_engine, grp1.RootPart, null, null);
+
+            // Check simple 1 prim case
+            {
+                LSL_List resList 
+                    = apiGrp1.llGetLinkPrimitiveParams(1, new LSL_List(new LSL_Integer(ScriptBaseClass.PRIM_ROTATION)));
+
+                Assert.That(resList.Length, Is.EqualTo(1));
+            }
+
+            // Check 2 prim case
+            {
+                LSL_List resList 
+                    = apiGrp1.llGetLinkPrimitiveParams(
+                        1, 
+                        new LSL_List(
+                            new LSL_Integer(ScriptBaseClass.PRIM_ROTATION), 
+                            new LSL_Integer(ScriptBaseClass.PRIM_LINK_TARGET),
+                            new LSL_Integer(2),
+                            new LSL_Integer(ScriptBaseClass.PRIM_ROTATION)));
+
+                Assert.That(resList.Length, Is.EqualTo(2));
+            }
+
+            // Check invalid parameters are ignored
+            {
+                LSL_List resList 
+                    = apiGrp1.llGetLinkPrimitiveParams(3, new LSL_List(new LSL_Integer(ScriptBaseClass.PRIM_ROTATION)));
+
+                Assert.That(resList.Length, Is.EqualTo(0));
+            }
+
+            // Check all parameters are ignored if an initial bad link is given
+            {
+                LSL_List resList 
+                    = apiGrp1.llGetLinkPrimitiveParams(
+                        3, 
+                        new LSL_List(
+                            new LSL_Integer(ScriptBaseClass.PRIM_ROTATION), 
+                            new LSL_Integer(ScriptBaseClass.PRIM_LINK_TARGET),
+                            new LSL_Integer(1),
+                            new LSL_Integer(ScriptBaseClass.PRIM_ROTATION)));
+
+                Assert.That(resList.Length, Is.EqualTo(0));
+            }
+
+            // Check only subsequent parameters are ignored when we hit the first bad link number
+            {
+                LSL_List resList 
+                    = apiGrp1.llGetLinkPrimitiveParams(
+                        1, 
+                        new LSL_List(
+                            new LSL_Integer(ScriptBaseClass.PRIM_ROTATION), 
+                            new LSL_Integer(ScriptBaseClass.PRIM_LINK_TARGET),
+                            new LSL_Integer(3),
+                            new LSL_Integer(ScriptBaseClass.PRIM_ROTATION)));
+
+                Assert.That(resList.Length, Is.EqualTo(1));
+            }
+        }
+
+        [Test]
+        // llSetPrimitiveParams and llGetPrimitiveParams test.
+        public void TestllSetPrimitiveParams()
+        {
+            TestHelpers.InMethod();
+
+            // Create Prim1.
+            Scene scene = new SceneHelpers().SetupScene();
+            string obj1Name = "Prim1";
+            UUID objUuid = new UUID("00000000-0000-0000-0000-000000000001");
+            SceneObjectPart part1 =
+                new SceneObjectPart(UUID.Zero, PrimitiveBaseShape.Default,
+                Vector3.Zero, Quaternion.Identity,
+                Vector3.Zero) { Name = obj1Name, UUID = objUuid };
+            Assert.That(scene.AddNewSceneObject(new SceneObjectGroup(part1), false), Is.True);
+
+            LSL_Api apiGrp1 = new LSL_Api();
+            apiGrp1.Initialize(m_engine, part1, null, null);
+
+            // Note that prim hollow check is passed with the other prim params in order to allow the
+            // specification of a different check value from the prim param. A cylinder, prism, sphere,
+            // torus or ring, with a hole shape of square, is limited to a hollow of 70%. Test 5 below
+            // specifies a value of 95% and checks to see if 70% was properly returned.
+
+            // Test a sphere.
+            CheckllSetPrimitiveParams(
+                apiGrp1,
+                "test 1",                                   // Prim test identification string
+                new LSL_Types.Vector3(6.0d, 9.9d, 9.9d),    // Prim size
+                ScriptBaseClass.PRIM_TYPE_SPHERE,           // Prim type
+                ScriptBaseClass.PRIM_HOLE_DEFAULT,          // Prim hole type
+                new LSL_Types.Vector3(0.0d, 0.075d, 0.0d),  // Prim cut
+                0.80f,                                      // Prim hollow
+                new LSL_Types.Vector3(0.0d, 0.0d, 0.0d),    // Prim twist
+                new LSL_Types.Vector3(0.32d, 0.76d, 0.0d),  // Prim dimple
+                0.80f);                                     // Prim hollow check
+
+            // Test a prism.
+            CheckllSetPrimitiveParams(
+                apiGrp1,
+                "test 2",                                   // Prim test identification string
+                new LSL_Types.Vector3(3.5d, 3.5d, 3.5d),    // Prim size
+                ScriptBaseClass.PRIM_TYPE_PRISM,            // Prim type
+                ScriptBaseClass.PRIM_HOLE_CIRCLE,           // Prim hole type
+                new LSL_Types.Vector3(0.0d, 1.0d, 0.0d),    // Prim cut
+                0.90f,                                      // Prim hollow
+                new LSL_Types.Vector3(0.0d, 0.0d, 0.0d),    // Prim twist
+                new LSL_Types.Vector3(2.0d, 1.0d, 0.0d),    // Prim taper 
+                new LSL_Types.Vector3(0.0d, 0.0d, 0.0d),    // Prim shear
+                0.90f);                                     // Prim hollow check
+
+            // Test a box.
+            CheckllSetPrimitiveParams(
+                apiGrp1,
+                "test 3",                                   // Prim test identification string
+                new LSL_Types.Vector3(3.5d, 3.5d, 3.5d),    // Prim size
+                ScriptBaseClass.PRIM_TYPE_BOX,              // Prim type
+                ScriptBaseClass.PRIM_HOLE_TRIANGLE,         // Prim hole type
+                new LSL_Types.Vector3(0.0d, 1.0d, 0.0d),    // Prim cut
+                0.95f,                                      // Prim hollow
+                new LSL_Types.Vector3(1.0d, 0.0d, 0.0d),    // Prim twist
+                new LSL_Types.Vector3(1.0d, 1.0d, 0.0d),    // Prim taper 
+                new LSL_Types.Vector3(0.0d, 0.0d, 0.0d),    // Prim shear
+                0.95f);                                     // Prim hollow check
+
+            // Test a tube.
+            CheckllSetPrimitiveParams(
+                apiGrp1,
+                "test 4",                                   // Prim test identification string
+                new LSL_Types.Vector3(4.2d, 4.2d, 4.2d),    // Prim size
+                ScriptBaseClass.PRIM_TYPE_TUBE,             // Prim type
+                ScriptBaseClass.PRIM_HOLE_SQUARE,           // Prim hole type
+                new LSL_Types.Vector3(0.0d, 1.0d, 0.0d),    // Prim cut
+                0.00f,                                      // Prim hollow
+                new LSL_Types.Vector3(1.0d, -1.0d, 0.0d),   // Prim twist
+                new LSL_Types.Vector3(1.0d, 0.05d, 0.0d),   // Prim hole size
+                // Expression for y selected to test precision problems during byte
+                // cast in SetPrimitiveShapeParams.
+                new LSL_Types.Vector3(0.0d, 0.35d + 0.1d, 0.0d),    // Prim shear
+                new LSL_Types.Vector3(0.0d, 1.0d, 0.0d),    // Prim profile cut
+                // Expression for y selected to test precision problems during sbyte
+                // cast in SetPrimitiveShapeParams.
+                new LSL_Types.Vector3(-1.0d, 0.70d + 0.1d + 0.1d, 0.0d),    // Prim taper
+                1.11f,                                      // Prim revolutions
+                0.88f,                                      // Prim radius
+                0.95f,                                      // Prim skew
+                0.00f);                                     // Prim hollow check
+
+            // Test a prism.
+            CheckllSetPrimitiveParams(
+                apiGrp1,
+                "test 5",                                   // Prim test identification string
+                new LSL_Types.Vector3(3.5d, 3.5d, 3.5d),    // Prim size
+                ScriptBaseClass.PRIM_TYPE_PRISM,            // Prim type
+                ScriptBaseClass.PRIM_HOLE_SQUARE,           // Prim hole type
+                new LSL_Types.Vector3(0.0d, 1.0d, 0.0d),    // Prim cut
+                0.95f,                                      // Prim hollow
+                // Expression for x selected to test precision problems during sbyte
+                // cast in SetPrimitiveShapeBlockParams.
+                new LSL_Types.Vector3(0.7d + 0.2d, 0.0d, 0.0d),     // Prim twist
+                // Expression for y selected to test precision problems during sbyte
+                // cast in SetPrimitiveShapeParams.
+                new LSL_Types.Vector3(2.0d, (1.3d + 0.1d), 0.0d),   // Prim taper 
+                new LSL_Types.Vector3(0.0d, 0.0d, 0.0d),    // Prim shear
+                0.70f);                                     // Prim hollow check
+
+            // Test a sculpted prim.
+            CheckllSetPrimitiveParams(
+                apiGrp1,
+                "test 6",                                   // Prim test identification string
+                new LSL_Types.Vector3(2.0d, 2.0d, 2.0d),    // Prim size
+                ScriptBaseClass.PRIM_TYPE_SCULPT,           // Prim type
+                "be293869-d0d9-0a69-5989-ad27f1946fd4",     // Prim map
+                ScriptBaseClass.PRIM_SCULPT_TYPE_SPHERE);   // Prim sculpt type
+        }
+
+        // Set prim params for a box, cylinder or prism and check results.
+        public void CheckllSetPrimitiveParams(LSL_Api api, string primTest,
+            LSL_Types.Vector3 primSize, int primType, int primHoleType, LSL_Types.Vector3 primCut,
+            float primHollow, LSL_Types.Vector3 primTwist, LSL_Types.Vector3 primTaper, LSL_Types.Vector3 primShear,
+            float primHollowCheck)
+        {
+            // Set the prim params.
+            api.llSetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, primSize,
+                ScriptBaseClass.PRIM_TYPE, primType, primHoleType,
+                primCut, primHollow, primTwist, primTaper, primShear));
+
+            // Get params for prim to validate settings.
+            LSL_Types.list primParams =
+                api.llGetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, ScriptBaseClass.PRIM_TYPE));
+
+            // Validate settings.
+            CheckllSetPrimitiveParamsVector(primSize, api.llList2Vector(primParams, 0), primTest + " prim size");
+            Assert.AreEqual(primType, api.llList2Integer(primParams, 1),
+                "TestllSetPrimitiveParams " + primTest + " prim type check fail");
+            Assert.AreEqual(primHoleType, api.llList2Integer(primParams, 2),
+                "TestllSetPrimitiveParams " + primTest + " prim hole default check fail");
+            CheckllSetPrimitiveParamsVector(primCut, api.llList2Vector(primParams, 3), primTest + " prim cut");
+            Assert.AreEqual(primHollowCheck, api.llList2Float(primParams, 4), FLOAT_ACCURACY,
+                "TestllSetPrimitiveParams " + primTest + " prim hollow check fail");
+            CheckllSetPrimitiveParamsVector(primTwist, api.llList2Vector(primParams, 5), primTest + " prim twist");
+            CheckllSetPrimitiveParamsVector(primTaper, api.llList2Vector(primParams, 6), primTest + " prim taper");
+            CheckllSetPrimitiveParamsVector(primShear, api.llList2Vector(primParams, 7), primTest + " prim shear");
+        }
+
+        // Set prim params for a sphere and check results.
+        public void CheckllSetPrimitiveParams(LSL_Api api, string primTest,
+            LSL_Types.Vector3 primSize, int primType, int primHoleType, LSL_Types.Vector3 primCut,
+            float primHollow, LSL_Types.Vector3 primTwist, LSL_Types.Vector3 primDimple, float primHollowCheck)
+        {
+            // Set the prim params.
+            api.llSetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, primSize,
+                ScriptBaseClass.PRIM_TYPE, primType, primHoleType,
+                primCut, primHollow, primTwist, primDimple));
+
+            // Get params for prim to validate settings.
+            LSL_Types.list primParams =
+                api.llGetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, ScriptBaseClass.PRIM_TYPE));
+
+            // Validate settings.
+            CheckllSetPrimitiveParamsVector(primSize, api.llList2Vector(primParams, 0), primTest + " prim size");
+            Assert.AreEqual(primType, api.llList2Integer(primParams, 1),
+                "TestllSetPrimitiveParams " + primTest + " prim type check fail");
+            Assert.AreEqual(primHoleType, api.llList2Integer(primParams, 2),
+                "TestllSetPrimitiveParams " + primTest + " prim hole default check fail");
+            CheckllSetPrimitiveParamsVector(primCut, api.llList2Vector(primParams, 3), primTest + " prim cut");
+            Assert.AreEqual(primHollowCheck, api.llList2Float(primParams, 4), FLOAT_ACCURACY,
+                "TestllSetPrimitiveParams " + primTest + " prim hollow check fail");
+            CheckllSetPrimitiveParamsVector(primTwist, api.llList2Vector(primParams, 5), primTest + " prim twist");
+            CheckllSetPrimitiveParamsVector(primDimple, api.llList2Vector(primParams, 6), primTest + " prim dimple");
+        }
+
+        // Set prim params for a torus, tube or ring and check results.
+        public void CheckllSetPrimitiveParams(LSL_Api api, string primTest,
+            LSL_Types.Vector3 primSize, int primType, int primHoleType, LSL_Types.Vector3 primCut,
+            float primHollow, LSL_Types.Vector3 primTwist, LSL_Types.Vector3 primHoleSize,
+            LSL_Types.Vector3 primShear, LSL_Types.Vector3 primProfCut, LSL_Types.Vector3 primTaper,
+            float primRev, float primRadius, float primSkew, float primHollowCheck)
+        {
+            // Set the prim params.
+            api.llSetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, primSize,
+                ScriptBaseClass.PRIM_TYPE, primType, primHoleType,
+                primCut, primHollow, primTwist, primHoleSize, primShear, primProfCut,
+                primTaper, primRev, primRadius, primSkew));
+
+            // Get params for prim to validate settings.
+            LSL_Types.list primParams =
+                api.llGetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, ScriptBaseClass.PRIM_TYPE));
+
+            // Valdate settings.
+            CheckllSetPrimitiveParamsVector(primSize, api.llList2Vector(primParams, 0), primTest + " prim size");
+            Assert.AreEqual(primType, api.llList2Integer(primParams, 1),
+                "TestllSetPrimitiveParams " + primTest + " prim type check fail");
+            Assert.AreEqual(primHoleType, api.llList2Integer(primParams, 2),
+                "TestllSetPrimitiveParams " + primTest + " prim hole default check fail");
+            CheckllSetPrimitiveParamsVector(primCut, api.llList2Vector(primParams, 3), primTest + " prim cut");
+            Assert.AreEqual(primHollowCheck, api.llList2Float(primParams, 4), FLOAT_ACCURACY,
+                "TestllSetPrimitiveParams " + primTest + " prim hollow check fail");
+            CheckllSetPrimitiveParamsVector(primTwist, api.llList2Vector(primParams, 5), primTest + " prim twist");
+            CheckllSetPrimitiveParamsVector(primHoleSize, api.llList2Vector(primParams, 6), primTest + " prim hole size");
+            CheckllSetPrimitiveParamsVector(primShear, api.llList2Vector(primParams, 7), primTest + " prim shear");
+            CheckllSetPrimitiveParamsVector(primProfCut, api.llList2Vector(primParams, 8), primTest + " prim profile cut");
+            CheckllSetPrimitiveParamsVector(primTaper, api.llList2Vector(primParams, 9), primTest + " prim taper");
+            Assert.AreEqual(primRev, api.llList2Float(primParams, 10), FLOAT_ACCURACY,
+                "TestllSetPrimitiveParams " + primTest + " prim revolutions fail");
+            Assert.AreEqual(primRadius, api.llList2Float(primParams, 11), FLOAT_ACCURACY,
+                "TestllSetPrimitiveParams " + primTest + " prim radius fail");
+            Assert.AreEqual(primSkew, api.llList2Float(primParams, 12), FLOAT_ACCURACY,
+                "TestllSetPrimitiveParams " + primTest + " prim skew fail");
+        }
+
+        // Set prim params for a sculpted prim and check results.
+        public void CheckllSetPrimitiveParams(LSL_Api api, string primTest,
+            LSL_Types.Vector3 primSize, int primType, string primMap, int primSculptType)
+        {
+            // Set the prim params.
+            api.llSetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, primSize,
+                ScriptBaseClass.PRIM_TYPE, primType, primMap, primSculptType));
+
+            // Get params for prim to validate settings.
+            LSL_Types.list primParams =
+                api.llGetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, ScriptBaseClass.PRIM_TYPE));
+
+            // Validate settings.
+            CheckllSetPrimitiveParamsVector(primSize, api.llList2Vector(primParams, 0), primTest + " prim size");
+            Assert.AreEqual(primType, api.llList2Integer(primParams, 1),
+                "TestllSetPrimitiveParams " + primTest + " prim type check fail");
+            Assert.AreEqual(primMap, (string)api.llList2String(primParams, 2),
+                "TestllSetPrimitiveParams " + primTest + " prim map check fail");
+            Assert.AreEqual(primSculptType, api.llList2Integer(primParams, 3),
+                "TestllSetPrimitiveParams " + primTest + " prim type scuplt check fail");
+        }
+
+        public void CheckllSetPrimitiveParamsVector(LSL_Types.Vector3 vecCheck, LSL_Types.Vector3 vecReturned, string msg)
+        {
+            // Check each vector component against expected result.
+            Assert.AreEqual(vecCheck.x, vecReturned.x, VECTOR_COMPONENT_ACCURACY,
+                "TestllSetPrimitiveParams " + msg + " vector check fail on x component");
+            Assert.AreEqual(vecCheck.y, vecReturned.y, VECTOR_COMPONENT_ACCURACY,
+                "TestllSetPrimitiveParams " + msg + " vector check fail on y component");
+            Assert.AreEqual(vecCheck.z, vecReturned.z, VECTOR_COMPONENT_ACCURACY,
+                "TestllSetPrimitiveParams " + msg + " vector check fail on z component");
+        }
+
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Region/ScriptEngine/Shared/Tests/LSL_ApiTest.cs b/OpenSim/Region/ScriptEngine/Shared/Tests/LSL_ApiTest.cs
index e97ae06..7e3726a 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Tests/LSL_ApiTest.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Tests/LSL_ApiTest.cs
@@ -47,9 +47,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Tests
     [TestFixture, LongRunning]
     public class LSL_ApiTest
     {
-        private const double ANGLE_ACCURACY_IN_RADIANS = 1E-6;
         private const double VECTOR_COMPONENT_ACCURACY = 0.0000005d;
-        private const float FLOAT_ACCURACY = 0.00005f;
+        private const double ANGLE_ACCURACY_IN_RADIANS = 1E-6;
         private LSL_Api m_lslApi;
 
         [SetUp]
@@ -255,241 +254,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Tests
         }
 
         [Test]
-        // llSetPrimitiveParams and llGetPrimitiveParams test.
-        public void TestllSetPrimitiveParams()
-        {
-            TestHelpers.InMethod();
-
-            // Create Prim1.
-            Scene scene = new SceneHelpers().SetupScene();
-            string obj1Name = "Prim1";
-            UUID objUuid = new UUID("00000000-0000-0000-0000-000000000001");
-            SceneObjectPart part1 =
-                new SceneObjectPart(UUID.Zero, PrimitiveBaseShape.Default,
-                Vector3.Zero, Quaternion.Identity,
-                Vector3.Zero) { Name = obj1Name, UUID = objUuid };
-            Assert.That(scene.AddNewSceneObject(new SceneObjectGroup(part1), false), Is.True);
-
-            // Note that prim hollow check is passed with the other prim params in order to allow the
-            // specification of a different check value from the prim param. A cylinder, prism, sphere,
-            // torus or ring, with a hole shape of square, is limited to a hollow of 70%. Test 5 below
-            // specifies a value of 95% and checks to see if 70% was properly returned.
-
-            // Test a sphere.
-            CheckllSetPrimitiveParams(
-                "test 1",                                   // Prim test identification string
-                new LSL_Types.Vector3(6.0d, 9.9d, 9.9d),    // Prim size
-                ScriptBaseClass.PRIM_TYPE_SPHERE,           // Prim type
-                ScriptBaseClass.PRIM_HOLE_DEFAULT,          // Prim hole type
-                new LSL_Types.Vector3(0.0d, 0.075d, 0.0d),  // Prim cut
-                0.80f,                                      // Prim hollow
-                new LSL_Types.Vector3(0.0d, 0.0d, 0.0d),    // Prim twist
-                new LSL_Types.Vector3(0.32d, 0.76d, 0.0d),  // Prim dimple
-                0.80f);                                     // Prim hollow check
-
-            // Test a prism.
-            CheckllSetPrimitiveParams(
-                "test 2",                                   // Prim test identification string
-                new LSL_Types.Vector3(3.5d, 3.5d, 3.5d),    // Prim size
-                ScriptBaseClass.PRIM_TYPE_PRISM,            // Prim type
-                ScriptBaseClass.PRIM_HOLE_CIRCLE,           // Prim hole type
-                new LSL_Types.Vector3(0.0d, 1.0d, 0.0d),    // Prim cut
-                0.90f,                                      // Prim hollow
-                new LSL_Types.Vector3(0.0d, 0.0d, 0.0d),    // Prim twist
-                new LSL_Types.Vector3(2.0d, 1.0d, 0.0d),    // Prim taper 
-                new LSL_Types.Vector3(0.0d, 0.0d, 0.0d),    // Prim shear
-                0.90f);                                     // Prim hollow check
-
-            // Test a box.
-            CheckllSetPrimitiveParams(
-                "test 3",                                   // Prim test identification string
-                new LSL_Types.Vector3(3.5d, 3.5d, 3.5d),    // Prim size
-                ScriptBaseClass.PRIM_TYPE_BOX,              // Prim type
-                ScriptBaseClass.PRIM_HOLE_TRIANGLE,         // Prim hole type
-                new LSL_Types.Vector3(0.0d, 1.0d, 0.0d),    // Prim cut
-                0.95f,                                      // Prim hollow
-                new LSL_Types.Vector3(1.0d, 0.0d, 0.0d),    // Prim twist
-                new LSL_Types.Vector3(1.0d, 1.0d, 0.0d),    // Prim taper 
-                new LSL_Types.Vector3(0.0d, 0.0d, 0.0d),    // Prim shear
-                0.95f);                                     // Prim hollow check
-
-            // Test a tube.
-            CheckllSetPrimitiveParams(
-                "test 4",                                   // Prim test identification string
-                new LSL_Types.Vector3(4.2d, 4.2d, 4.2d),    // Prim size
-                ScriptBaseClass.PRIM_TYPE_TUBE,             // Prim type
-                ScriptBaseClass.PRIM_HOLE_SQUARE,           // Prim hole type
-                new LSL_Types.Vector3(0.0d, 1.0d, 0.0d),    // Prim cut
-                0.00f,                                      // Prim hollow
-                new LSL_Types.Vector3(1.0d, -1.0d, 0.0d),   // Prim twist
-                new LSL_Types.Vector3(1.0d, 0.05d, 0.0d),   // Prim hole size
-                // Expression for y selected to test precision problems during byte
-                // cast in SetPrimitiveShapeParams.
-                new LSL_Types.Vector3(0.0d, 0.35d + 0.1d, 0.0d),    // Prim shear
-                new LSL_Types.Vector3(0.0d, 1.0d, 0.0d),    // Prim profile cut
-                // Expression for y selected to test precision problems during sbyte
-                // cast in SetPrimitiveShapeParams.
-                new LSL_Types.Vector3(-1.0d, 0.70d + 0.1d + 0.1d, 0.0d),    // Prim taper
-                1.11f,                                      // Prim revolutions
-                0.88f,                                      // Prim radius
-                0.95f,                                      // Prim skew
-                0.00f);                                     // Prim hollow check
-
-            // Test a prism.
-            CheckllSetPrimitiveParams(
-                "test 5",                                   // Prim test identification string
-                new LSL_Types.Vector3(3.5d, 3.5d, 3.5d),    // Prim size
-                ScriptBaseClass.PRIM_TYPE_PRISM,            // Prim type
-                ScriptBaseClass.PRIM_HOLE_SQUARE,           // Prim hole type
-                new LSL_Types.Vector3(0.0d, 1.0d, 0.0d),    // Prim cut
-                0.95f,                                      // Prim hollow
-                // Expression for x selected to test precision problems during sbyte
-                // cast in SetPrimitiveShapeBlockParams.
-                new LSL_Types.Vector3(0.7d + 0.2d, 0.0d, 0.0d),     // Prim twist
-                // Expression for y selected to test precision problems during sbyte
-                // cast in SetPrimitiveShapeParams.
-                new LSL_Types.Vector3(2.0d, (1.3d + 0.1d), 0.0d),   // Prim taper 
-                new LSL_Types.Vector3(0.0d, 0.0d, 0.0d),    // Prim shear
-                0.70f);                                     // Prim hollow check
-
-            // Test a sculpted prim.
-            CheckllSetPrimitiveParams(
-                "test 6",                                   // Prim test identification string
-                new LSL_Types.Vector3(2.0d, 2.0d, 2.0d),    // Prim size
-                ScriptBaseClass.PRIM_TYPE_SCULPT,           // Prim type
-                "be293869-d0d9-0a69-5989-ad27f1946fd4",     // Prim map
-                ScriptBaseClass.PRIM_SCULPT_TYPE_SPHERE);   // Prim sculpt type
-        }
-
-        // Set prim params for a box, cylinder or prism and check results.
-        public void CheckllSetPrimitiveParams(string primTest,
-            LSL_Types.Vector3 primSize, int primType, int primHoleType, LSL_Types.Vector3 primCut,
-            float primHollow, LSL_Types.Vector3 primTwist, LSL_Types.Vector3 primTaper, LSL_Types.Vector3 primShear,
-            float primHollowCheck)
-        {
-            // Set the prim params.
-            m_lslApi.llSetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, primSize,
-                ScriptBaseClass.PRIM_TYPE, primType, primHoleType,
-                primCut, primHollow, primTwist, primTaper, primShear));
-
-            // Get params for prim to validate settings.
-            LSL_Types.list primParams =
-                m_lslApi.llGetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, ScriptBaseClass.PRIM_TYPE));
-
-            // Validate settings.
-            CheckllSetPrimitiveParamsVector(primSize, m_lslApi.llList2Vector(primParams, 0), primTest + " prim size");
-            Assert.AreEqual(primType, m_lslApi.llList2Integer(primParams, 1),
-                "TestllSetPrimitiveParams " + primTest + " prim type check fail");
-            Assert.AreEqual(primHoleType, m_lslApi.llList2Integer(primParams, 2),
-                "TestllSetPrimitiveParams " + primTest + " prim hole default check fail");
-            CheckllSetPrimitiveParamsVector(primCut, m_lslApi.llList2Vector(primParams, 3), primTest + " prim cut");
-            Assert.AreEqual(primHollowCheck, m_lslApi.llList2Float(primParams, 4), FLOAT_ACCURACY,
-                "TestllSetPrimitiveParams " + primTest + " prim hollow check fail");
-            CheckllSetPrimitiveParamsVector(primTwist, m_lslApi.llList2Vector(primParams, 5), primTest + " prim twist");
-            CheckllSetPrimitiveParamsVector(primTaper, m_lslApi.llList2Vector(primParams, 6), primTest + " prim taper");
-            CheckllSetPrimitiveParamsVector(primShear, m_lslApi.llList2Vector(primParams, 7), primTest + " prim shear");
-        }
-
-        // Set prim params for a sphere and check results.
-        public void CheckllSetPrimitiveParams(string primTest,
-            LSL_Types.Vector3 primSize, int primType, int primHoleType, LSL_Types.Vector3 primCut,
-            float primHollow, LSL_Types.Vector3 primTwist, LSL_Types.Vector3 primDimple, float primHollowCheck)
-        {
-            // Set the prim params.
-            m_lslApi.llSetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, primSize,
-                ScriptBaseClass.PRIM_TYPE, primType, primHoleType,
-                primCut, primHollow, primTwist, primDimple));
-
-            // Get params for prim to validate settings.
-            LSL_Types.list primParams =
-                m_lslApi.llGetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, ScriptBaseClass.PRIM_TYPE));
-
-            // Validate settings.
-            CheckllSetPrimitiveParamsVector(primSize, m_lslApi.llList2Vector(primParams, 0), primTest + " prim size");
-            Assert.AreEqual(primType, m_lslApi.llList2Integer(primParams, 1),
-                "TestllSetPrimitiveParams " + primTest + " prim type check fail");
-            Assert.AreEqual(primHoleType, m_lslApi.llList2Integer(primParams, 2),
-                "TestllSetPrimitiveParams " + primTest + " prim hole default check fail");
-            CheckllSetPrimitiveParamsVector(primCut, m_lslApi.llList2Vector(primParams, 3), primTest + " prim cut");
-            Assert.AreEqual(primHollowCheck, m_lslApi.llList2Float(primParams, 4), FLOAT_ACCURACY,
-                "TestllSetPrimitiveParams " + primTest + " prim hollow check fail");
-            CheckllSetPrimitiveParamsVector(primTwist, m_lslApi.llList2Vector(primParams, 5), primTest + " prim twist");
-            CheckllSetPrimitiveParamsVector(primDimple, m_lslApi.llList2Vector(primParams, 6), primTest + " prim dimple");
-        }
-
-        // Set prim params for a torus, tube or ring and check results.
-        public void CheckllSetPrimitiveParams(string primTest,
-            LSL_Types.Vector3 primSize, int primType, int primHoleType, LSL_Types.Vector3 primCut,
-            float primHollow, LSL_Types.Vector3 primTwist, LSL_Types.Vector3 primHoleSize,
-            LSL_Types.Vector3 primShear, LSL_Types.Vector3 primProfCut, LSL_Types.Vector3 primTaper,
-            float primRev, float primRadius, float primSkew, float primHollowCheck)
-        {
-            // Set the prim params.
-            m_lslApi.llSetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, primSize,
-                ScriptBaseClass.PRIM_TYPE, primType, primHoleType,
-                primCut, primHollow, primTwist, primHoleSize, primShear, primProfCut,
-                primTaper, primRev, primRadius, primSkew));
-
-            // Get params for prim to validate settings.
-            LSL_Types.list primParams =
-                m_lslApi.llGetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, ScriptBaseClass.PRIM_TYPE));
-
-            // Valdate settings.
-            CheckllSetPrimitiveParamsVector(primSize, m_lslApi.llList2Vector(primParams, 0), primTest + " prim size");
-            Assert.AreEqual(primType, m_lslApi.llList2Integer(primParams, 1),
-                "TestllSetPrimitiveParams " + primTest + " prim type check fail");
-            Assert.AreEqual(primHoleType, m_lslApi.llList2Integer(primParams, 2),
-                "TestllSetPrimitiveParams " + primTest + " prim hole default check fail");
-            CheckllSetPrimitiveParamsVector(primCut, m_lslApi.llList2Vector(primParams, 3), primTest + " prim cut");
-            Assert.AreEqual(primHollowCheck, m_lslApi.llList2Float(primParams, 4), FLOAT_ACCURACY,
-                "TestllSetPrimitiveParams " + primTest + " prim hollow check fail");
-            CheckllSetPrimitiveParamsVector(primTwist, m_lslApi.llList2Vector(primParams, 5), primTest + " prim twist");
-            CheckllSetPrimitiveParamsVector(primHoleSize, m_lslApi.llList2Vector(primParams, 6), primTest + " prim hole size");
-            CheckllSetPrimitiveParamsVector(primShear, m_lslApi.llList2Vector(primParams, 7), primTest + " prim shear");
-            CheckllSetPrimitiveParamsVector(primProfCut, m_lslApi.llList2Vector(primParams, 8), primTest + " prim profile cut");
-            CheckllSetPrimitiveParamsVector(primTaper, m_lslApi.llList2Vector(primParams, 9), primTest + " prim taper");
-            Assert.AreEqual(primRev, m_lslApi.llList2Float(primParams, 10), FLOAT_ACCURACY,
-                "TestllSetPrimitiveParams " + primTest + " prim revolutions fail");
-            Assert.AreEqual(primRadius, m_lslApi.llList2Float(primParams, 11), FLOAT_ACCURACY,
-                "TestllSetPrimitiveParams " + primTest + " prim radius fail");
-            Assert.AreEqual(primSkew, m_lslApi.llList2Float(primParams, 12), FLOAT_ACCURACY,
-                "TestllSetPrimitiveParams " + primTest + " prim skew fail");
-        }
-
-        // Set prim params for a sculpted prim and check results.
-        public void CheckllSetPrimitiveParams(string primTest,
-            LSL_Types.Vector3 primSize, int primType, string primMap, int primSculptType)
-        {
-            // Set the prim params.
-            m_lslApi.llSetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, primSize,
-                ScriptBaseClass.PRIM_TYPE, primType, primMap, primSculptType));
-
-            // Get params for prim to validate settings.
-            LSL_Types.list primParams =
-                m_lslApi.llGetPrimitiveParams(new LSL_Types.list(ScriptBaseClass.PRIM_SIZE, ScriptBaseClass.PRIM_TYPE));
-
-            // Validate settings.
-            CheckllSetPrimitiveParamsVector(primSize, m_lslApi.llList2Vector(primParams, 0), primTest + " prim size");
-            Assert.AreEqual(primType, m_lslApi.llList2Integer(primParams, 1),
-                "TestllSetPrimitiveParams " + primTest + " prim type check fail");
-            Assert.AreEqual(primMap, (string)m_lslApi.llList2String(primParams, 2),
-                "TestllSetPrimitiveParams " + primTest + " prim map check fail");
-            Assert.AreEqual(primSculptType, m_lslApi.llList2Integer(primParams, 3),
-                "TestllSetPrimitiveParams " + primTest + " prim type scuplt check fail");
-        }
-
-        public void CheckllSetPrimitiveParamsVector(LSL_Types.Vector3 vecCheck, LSL_Types.Vector3 vecReturned, string msg)
-        {
-            // Check each vector component against expected result.
-            Assert.AreEqual(vecCheck.x, vecReturned.x, VECTOR_COMPONENT_ACCURACY,
-                "TestllSetPrimitiveParams " + msg + " vector check fail on x component");
-            Assert.AreEqual(vecCheck.y, vecReturned.y, VECTOR_COMPONENT_ACCURACY,
-                "TestllSetPrimitiveParams " + msg + " vector check fail on y component");
-            Assert.AreEqual(vecCheck.z, vecReturned.z, VECTOR_COMPONENT_ACCURACY,
-                "TestllSetPrimitiveParams " + msg + " vector check fail on z component");
-        }
-
-        [Test]
         public void TestllVecNorm()
         {
             TestHelpers.InMethod();