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diff --git a/OpenSim/Data/Null/NullUserAccountData.cs b/OpenSim/Data/Null/NullUserAccountData.cs
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+++ b/OpenSim/Data/Null/NullUserAccountData.cs
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+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Data;
+
+namespace OpenSim.Data.Null
+{
+    public class NullUserAccountData : IUserAccountData
+    {
+        private static Dictionary<UUID, UserAccountData> m_DataByUUID = new Dictionary<UUID, UserAccountData>();
+        private static Dictionary<string, UserAccountData> m_DataByName = new Dictionary<string, UserAccountData>();
+        private static Dictionary<string, UserAccountData> m_DataByEmail = new Dictionary<string, UserAccountData>();
+
+        public NullUserAccountData(string connectionString, string realm)
+        {
+        }
+
+        /// <summary>
+        /// Tries to implement the Get [] semantics, but it cuts corners like crazy.
+        /// Specifically, it relies on the knowledge that the only Gets used are
+        /// keyed on PrincipalID, Email, and FirstName+LastName.
+        /// </summary>
+        /// <param name="fields"></param>
+        /// <param name="values"></param>
+        /// <returns></returns>
+        public UserAccountData[] Get(string[] fields, string[] values)
+        {
+            List<string> fieldsLst = new List<string>(fields);
+            if (fieldsLst.Contains("PrincipalID"))
+            {
+                int i = fieldsLst.IndexOf("PrincipalID");
+                UUID id = UUID.Zero;
+                if (UUID.TryParse(values[i], out id))
+                    if (m_DataByUUID.ContainsKey(id))
+                        return new UserAccountData[] { m_DataByUUID[id] };
+            }
+            if (fieldsLst.Contains("FirstName") && fieldsLst.Contains("LastName"))
+            {
+                int findex = fieldsLst.IndexOf("FirstName");
+                int lindex = fieldsLst.IndexOf("LastName");
+                if (m_DataByName.ContainsKey(values[findex] + " " + values[lindex]))
+                    return new UserAccountData[] { m_DataByName[values[findex] + " " + values[lindex]] };
+            }
+            if (fieldsLst.Contains("Email"))
+            {
+                int i = fieldsLst.IndexOf("Email");
+                if (m_DataByEmail.ContainsKey(values[i]))
+                    return new UserAccountData[] { m_DataByEmail[values[i]] };
+            }
+
+            // Fail
+            return new UserAccountData[0];
+        }
+
+        public bool Store(UserAccountData data)
+        {
+            if (data == null)
+                return false;
+
+            m_DataByUUID[data.PrincipalID] = data;
+            m_DataByName[data.FirstName + " " + data.LastName] = data;
+            if (data.Data.ContainsKey("Email") && data.Data["Email"] != string.Empty)
+                m_DataByEmail[data.Data["Email"]] = data;
+
+            return true;
+        }
+
+        public UserAccountData[] GetUsers(UUID scopeID, string query)
+        {
+            string[] words = query.Split(new char[] { ' ' });
+
+            for (int i = 0; i < words.Length; i++)
+            {
+                if (words[i].Length < 3)
+                {
+                    if (i != words.Length - 1)
+                        Array.Copy(words, i + 1, words, i, words.Length - i - 1);
+                    Array.Resize(ref words, words.Length - 1);
+                }
+            }
+
+            if (words.Length == 0)
+                return new UserAccountData[0];
+
+            if (words.Length > 2)
+                return new UserAccountData[0];
+
+            List<string> lst = new List<string>(m_DataByName.Keys);
+            if (words.Length == 1)
+            {
+                lst = lst.FindAll(delegate(string s) { return s.StartsWith(words[0]); });
+            }
+            else
+            {
+                lst = lst.FindAll(delegate(string s) { return s.Contains(words[0]) || s.Contains(words[1]); });
+            }
+
+            if (lst == null || (lst != null && lst.Count == 0))
+                return new UserAccountData[0];
+
+            UserAccountData[] result = new UserAccountData[lst.Count];
+            int n = 0;
+            foreach (string key in lst)
+                result[n++] = m_DataByName[key];
+
+            return result;
+        }
+
+        public bool Delete(string field, string val)
+        {
+            // Only delete by PrincipalID
+            if (field.Equals("PrincipalID"))
+            {
+                UUID uuid = UUID.Zero;
+                if (UUID.TryParse(val, out uuid) && m_DataByUUID.ContainsKey(uuid))
+                {
+                    UserAccountData account = m_DataByUUID[uuid];
+                    m_DataByUUID.Remove(uuid);
+                    if (m_DataByName.ContainsKey(account.FirstName + " " + account.LastName))
+                        m_DataByName.Remove(account.FirstName + " " + account.LastName);
+                    if (account.Data.ContainsKey("Email") && account.Data["Email"] != string.Empty && m_DataByEmail.ContainsKey(account.Data["Email"]))
+                        m_DataByEmail.Remove(account.Data["Email"]);
+
+                    return true;
+                }
+            }
+
+            return false;
+        }
+    }
+}