diff --git a/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs b/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
index 7498cfe73e..3cb1901494 100644
--- a/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
@@ -43,9 +43,11 @@ using GridRegion = OpenSim.Services.Interfaces.GridRegion;
 using OpenMetaverse;
 using log4net;
 using Nini.Config;
+using Mono.Addins;
 
 namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
 {
+    [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "EntityTransferModule")]
     public class EntityTransferModule : INonSharedRegionModule, IEntityTransferModule
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
diff --git a/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs b/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs
index e37d4293c1..41ca13b8ea 100644
--- a/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs
@@ -42,9 +42,11 @@ using GridRegion = OpenSim.Services.Interfaces.GridRegion;
 using OpenMetaverse;
 using log4net;
 using Nini.Config;
+using Mono.Addins;
 
 namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
 {
+    [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "HGEntityTransferModule")]
     public class HGEntityTransferModule
         : EntityTransferModule, INonSharedRegionModule, IEntityTransferModule, IUserAgentVerificationModule
     {
diff --git a/OpenSim/Region/CoreModules/Framework/InventoryAccess/HGInventoryAccessModule.cs b/OpenSim/Region/CoreModules/Framework/InventoryAccess/HGInventoryAccessModule.cs
index 6bb758ea07..964efdaa46 100644
--- a/OpenSim/Region/CoreModules/Framework/InventoryAccess/HGInventoryAccessModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/InventoryAccess/HGInventoryAccessModule.cs
@@ -42,9 +42,11 @@ using GridRegion = OpenSim.Services.Interfaces.GridRegion;
 using OpenMetaverse;
 using log4net;
 using Nini.Config;
+using Mono.Addins;
 
 namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
 {
+    [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "HGInventoryAccessModule")]
     public class HGInventoryAccessModule : BasicInventoryAccessModule, INonSharedRegionModule, IInventoryAccessModule
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
diff --git a/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs b/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
index d112a90709..8b7c16e1ca 100644
--- a/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
@@ -46,9 +46,11 @@ using GridRegion = OpenSim.Services.Interfaces.GridRegion;
 using OpenMetaverse;
 using log4net;
 using Nini.Config;
+using Mono.Addins;
 
 namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
 {
+    [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "BasicInventoryAccessModule")]
     public class BasicInventoryAccessModule : INonSharedRegionModule, IInventoryAccessModule
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
diff --git a/OpenSim/Region/CoreModules/Framework/UserManagement/HGUserManagementModule.cs b/OpenSim/Region/CoreModules/Framework/UserManagement/HGUserManagementModule.cs
index acefc97276..4ef57fe978 100644
--- a/OpenSim/Region/CoreModules/Framework/UserManagement/HGUserManagementModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/UserManagement/HGUserManagementModule.cs
@@ -41,9 +41,11 @@ using OpenMetaverse;
 using OpenMetaverse.Packets;
 using log4net;
 using Nini.Config;
+using Mono.Addins;
 
 namespace OpenSim.Region.CoreModules.Framework.UserManagement
 {
+    [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "HGUserManagementModule")]
     public class HGUserManagementModule : UserManagementModule, ISharedRegionModule, IUserManagement
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
diff --git a/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs b/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs
index b4811dadce..86e70045e0 100644
--- a/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs
@@ -42,6 +42,7 @@ using OpenMetaverse;
 using OpenMetaverse.Packets;
 using log4net;
 using Nini.Config;
+using Mono.Addins;
 
 namespace OpenSim.Region.CoreModules.Framework.UserManagement
 {
@@ -54,6 +55,7 @@ namespace OpenSim.Region.CoreModules.Framework.UserManagement
         public Dictionary<string, object> ServerURLs { get; set; }
     }
 
+    [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "UserManagementModule")]
     public class UserManagementModule : ISharedRegionModule, IUserManagement
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
diff --git a/OpenSim/Region/CoreModules/Resources/CoreModulePlugin.addin.xml b/OpenSim/Region/CoreModules/Resources/CoreModulePlugin.addin.xml
index 81f1ff61a4..fee1d5f0f5 100644
--- a/OpenSim/Region/CoreModules/Resources/CoreModulePlugin.addin.xml
+++ b/OpenSim/Region/CoreModules/Resources/CoreModulePlugin.addin.xml
@@ -8,12 +8,6 @@
     </Dependencies>
 
     <Extension path = "/OpenSim/RegionModules">
-        <RegionModule id="UserManagementModule" type="OpenSim.Region.CoreModules.Framework.UserManagement.UserManagementModule" />
-        <RegionModule id="HGUserManagementModule" type="OpenSim.Region.CoreModules.Framework.UserManagement.HGUserManagementModule" />
-        <RegionModule id="EntityTransferModule" type="OpenSim.Region.CoreModules.Framework.EntityTransfer.EntityTransferModule" />
-        <RegionModule id="HGEntityTransferModule" type="OpenSim.Region.CoreModules.Framework.EntityTransfer.HGEntityTransferModule" />
-        <RegionModule id="InventoryAccessModule" type="OpenSim.Region.CoreModules.Framework.InventoryAccess.BasicInventoryAccessModule" />
-        <RegionModule id="HGInventoryAccessModule" type="OpenSim.Region.CoreModules.Framework.InventoryAccess.HGInventoryAccessModule" />
         <RegionModule id="LandManagementModule" type="OpenSim.Region.CoreModules.World.Land.LandManagementModule" />
         <RegionModule id="DwellModule" type="OpenSim.Region.CoreModules.World.Land.DwellModule" />
         <RegionModule id="PrimCountModule" type="OpenSim.Region.CoreModules.World.Land.PrimCountModule" />