diff --git a/OpenSim/Framework/InventoryServiceBase/InventoryServiceBase.cs b/OpenSim/Framework/InventoryServiceBase/InventoryServiceBase.cs
index dc66bd43ac..d76fac51c3 100644
--- a/OpenSim/Framework/InventoryServiceBase/InventoryServiceBase.cs
+++ b/OpenSim/Framework/InventoryServiceBase/InventoryServiceBase.cs
@@ -23,28 +23,28 @@ namespace OpenSim.Framework.InventoryServiceBase
         /// <param name="FileName">The filename to the user server plugin DLL</param>
         public void AddPlugin(string FileName)
         {
-            MainLog.Instance.Verbose("Inventory", "Inventorystorage: Attempting to load " + FileName);
-            Assembly pluginAssembly = Assembly.LoadFrom(FileName);
-
-            foreach (Type pluginType in pluginAssembly.GetTypes())
+            if (!String.IsNullOrEmpty(FileName))
             {
-                if (!pluginType.IsAbstract)
+                MainLog.Instance.Verbose("Inventory", "Inventorystorage: Attempting to load " + FileName);
+                Assembly pluginAssembly = Assembly.LoadFrom(FileName);
+
+                foreach (Type pluginType in pluginAssembly.GetTypes())
                 {
-                    Type typeInterface = pluginType.GetInterface("IInventoryData", true);
-
-                    if (typeInterface != null)
+                    if (!pluginType.IsAbstract)
                     {
-                        IInventoryData plug = (IInventoryData)Activator.CreateInstance(pluginAssembly.GetType(pluginType.ToString()));
-                        plug.Initialise();
-                        this.m_plugins.Add(plug.getName(), plug);
-                        MainLog.Instance.Verbose("Inventorystorage: Added IInventoryData Interface");
-                    }
+                        Type typeInterface = pluginType.GetInterface("IInventoryData", true);
 
-                    typeInterface = null;
+                        if (typeInterface != null)
+                        {
+                            IInventoryData plug =
+                                (IInventoryData)Activator.CreateInstance(pluginAssembly.GetType(pluginType.ToString()));
+                            plug.Initialise();
+                            this.m_plugins.Add(plug.getName(), plug);
+                            MainLog.Instance.Verbose("Inventorystorage: Added IInventoryData Interface");
+                        }
+                    }
                 }
             }
-
-            pluginAssembly = null;
         }
 
         /// <summary>
diff --git a/OpenSim/Framework/UserManager/UserManagerBase.cs b/OpenSim/Framework/UserManager/UserManagerBase.cs
index e11204b14c..4a2870bf0f 100644
--- a/OpenSim/Framework/UserManager/UserManagerBase.cs
+++ b/OpenSim/Framework/UserManager/UserManagerBase.cs
@@ -25,6 +25,7 @@
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 */
+
 using System;
 using System.Collections;
 using System.Collections.Generic;
@@ -32,15 +33,11 @@ using System.Reflection;
 using System.Security.Cryptography;
 using libsecondlife;
 using Nwc.XmlRpc;
+using OpenSim.Framework.Configuration;
 using OpenSim.Framework.Console;
 using OpenSim.Framework.Data;
-using OpenSim.Framework.Interfaces;
-using OpenSim.Framework.Inventory;
 using OpenSim.Framework.Utilities;
 
-using OpenSim.Framework.Configuration;
-using InventoryFolder = OpenSim.Framework.Inventory.InventoryFolder;
-
 namespace OpenSim.Framework.UserManagement
 {
     public abstract class UserManagerBase
@@ -54,32 +51,32 @@ namespace OpenSim.Framework.UserManagement
         /// <param name="FileName">The filename to the user server plugin DLL</param>
         public void AddPlugin(string FileName)
         {
-            MainLog.Instance.Verbose( "Userstorage: Attempting to load " + FileName);
-            Assembly pluginAssembly = Assembly.LoadFrom(FileName);
-
-            MainLog.Instance.Verbose( "Userstorage: Found " + pluginAssembly.GetTypes().Length + " interfaces.");
-            foreach (Type pluginType in pluginAssembly.GetTypes())
+            if (!String.IsNullOrEmpty(FileName))
             {
-                if (!pluginType.IsAbstract)
+                MainLog.Instance.Verbose("Userstorage: Attempting to load " + FileName);
+                Assembly pluginAssembly = Assembly.LoadFrom(FileName);
+
+                MainLog.Instance.Verbose("Userstorage: Found " + pluginAssembly.GetTypes().Length + " interfaces.");
+                foreach (Type pluginType in pluginAssembly.GetTypes())
                 {
-                    Type typeInterface = pluginType.GetInterface("IUserData", true);
-
-                    if (typeInterface != null)
+                    if (!pluginType.IsAbstract)
                     {
-                        IUserData plug = (IUserData)Activator.CreateInstance(pluginAssembly.GetType(pluginType.ToString()));
-                        plug.Initialise();
-                        AddPlugin(plug);
-                    }
+                        Type typeInterface = pluginType.GetInterface("IUserData", true);
 
-                    typeInterface = null;
+                        if (typeInterface != null)
+                        {
+                            IUserData plug =
+                                (IUserData) Activator.CreateInstance(pluginAssembly.GetType(pluginType.ToString()));
+                            AddPlugin(plug);
+                        }
+                    }
                 }
             }
-
-            pluginAssembly = null;
         }
 
-        private void AddPlugin(IUserData plug)
+        public void AddPlugin(IUserData plug)
         {
+            plug.Initialise();
             this._plugins.Add(plug.getName(), plug);
             MainLog.Instance.Verbose( "Userstorage: Added IUserData Interface");
         }
diff --git a/OpenSim/Region/Application/OpenSimMain.cs b/OpenSim/Region/Application/OpenSimMain.cs
index 161e73f5fd..c28025bc14 100644
--- a/OpenSim/Region/Application/OpenSimMain.cs
+++ b/OpenSim/Region/Application/OpenSimMain.cs
@@ -79,8 +79,8 @@ namespace OpenSim
 
         private bool standaloneAuthenticate = false;
         private string standaloneWelcomeMessage = null;
-        private string standaloneInventoryPlugin = "";
-        private string standaloneUserPlugin = "";
+        private string standaloneInventoryPlugin = "OpenSim.Framework.Data.SQLite.dll";
+        private string standaloneUserPlugin = "OpenSim.Framework.Data.DB4o.dll";
 
         private string m_assetStorage = "db4o";
 
diff --git a/OpenSim/Region/Communications/Local/CommunicationsLocal.cs b/OpenSim/Region/Communications/Local/CommunicationsLocal.cs
index 1f543103dc..3031b8af19 100644
--- a/OpenSim/Region/Communications/Local/CommunicationsLocal.cs
+++ b/OpenSim/Region/Communications/Local/CommunicationsLocal.cs
@@ -44,13 +44,13 @@ namespace OpenSim.Region.Communications.Local
         public LocalUserServices UserServices;
         public LocalLoginService LoginServices;
         public LocalInventoryService InvenServices;
-        
+
         protected LocalSettings m_settings;
 
-        protected CommunicationsLocal(NetworkServersInfo serversInfo, BaseHttpServer httpServer, AssetCache assetCache )
+        protected CommunicationsLocal(NetworkServersInfo serversInfo, BaseHttpServer httpServer, AssetCache assetCache)
             : base(serversInfo, httpServer, assetCache)
         {
-            
+
         }
 
         public CommunicationsLocal(NetworkServersInfo serversInfo, BaseHttpServer httpServer, AssetCache assetCache, LocalSettings settings)
@@ -94,7 +94,7 @@ namespace OpenSim.Region.Communications.Local
 
                     if (cmmdParams.Length < 2)
                     {
-                       
+
                         firstName = MainLog.Instance.CmdPrompt("First name", "Default");
                         lastName = MainLog.Instance.CmdPrompt("Last name", "User");
                         password = MainLog.Instance.PasswdPrompt("Password");
@@ -126,7 +126,7 @@ namespace OpenSim.Region.Communications.Local
             {
                 return LLUUID.Zero;
             }
-            else 
+            else
             {
                 this.InvenServices.CreateNewUserInventory(userProf.UUID);
                 Console.WriteLine("Created new inventory set for " + firstName + " " + lastName);
@@ -136,23 +136,17 @@ namespace OpenSim.Region.Communications.Local
 
         public class LocalSettings
         {
-            public string WelcomeMessage = "";
+            public string WelcomeMessage;
             public bool AccountAuthentication = false;
-            public string InventoryPlugin = "OpenSim.Framework.Data.SQLite.dll";
-            public string UserDatabasePlugin = "OpenSim.Framework.Data.DB4o.dll";
+            public string InventoryPlugin;
+            public string UserDatabasePlugin;
 
             public LocalSettings(string welcomeMessage, bool accountsAuthenticate, string inventoryPlugin, string userPlugin)
             {
                 WelcomeMessage = welcomeMessage;
                 AccountAuthentication = accountsAuthenticate;
-                if (inventoryPlugin != "")
-                {
-                    InventoryPlugin = inventoryPlugin;
-                }
-                if (userPlugin != "")
-                {
-                    UserDatabasePlugin = userPlugin;
-                }
+                InventoryPlugin = inventoryPlugin;
+                UserDatabasePlugin = userPlugin;
             }
         }