diff --git a/OpenSim/Data/Tests/AssetTests.cs b/OpenSim/Data/Tests/AssetTests.cs
index 800b9bfba2..32f74a9b1e 100644
--- a/OpenSim/Data/Tests/AssetTests.cs
+++ b/OpenSim/Data/Tests/AssetTests.cs
@@ -35,10 +35,6 @@ using OpenSim.Framework;
 using System.Data.Common;
 using log4net;
 
-#if !NUNIT25
-using NUnit.Framework.SyntaxHelpers;
-#endif
-
 // DBMS-specific:
 using MySql.Data.MySqlClient;
 using OpenSim.Data.MySQL;
@@ -51,15 +47,6 @@ using OpenSim.Data.SQLite;
 
 namespace OpenSim.Data.Tests
 {
-
-#if NUNIT25
-
-    [TestFixture(typeof(MySqlConnection), typeof(MySQLAssetData), Description="Basic Asset store tests (MySQL)")]
-    [TestFixture(typeof(SqlConnection), typeof(MSSQLAssetData), Description = "Basic Asset store tests (MS SQL Server)")]
-    [TestFixture(typeof(SqliteConnection), typeof(SQLiteAssetData), Description = "Basic Asset store tests (SQLite)")]
-
-#else
-
     [TestFixture(Description = "Asset store tests (SQLite)")]
     public class SQLiteAssetTests : AssetTests<SqliteConnection, SQLiteAssetData>
     {
@@ -75,9 +62,6 @@ namespace OpenSim.Data.Tests
     {
     }
 
-#endif
-
-
     public class AssetTests<TConn, TAssetData> : BasicDataServiceTest<TConn, TAssetData>
         where TConn : DbConnection, new()
         where TAssetData : AssetDataBase, new()
@@ -218,4 +202,4 @@ namespace OpenSim.Data.Tests
             Assert.That(a3a, Constraints.PropertyCompareConstraint(a3));
         }
     }
-}
+}
\ No newline at end of file
diff --git a/OpenSim/Data/Tests/EstateTests.cs b/OpenSim/Data/Tests/EstateTests.cs
index fbf8ba658e..3354e284da 100644
--- a/OpenSim/Data/Tests/EstateTests.cs
+++ b/OpenSim/Data/Tests/EstateTests.cs
@@ -28,7 +28,6 @@
 using System;
 using log4net.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Region.Framework.Interfaces;
@@ -49,15 +48,6 @@ using OpenSim.Data.SQLite;
 
 namespace OpenSim.Data.Tests
 {
-
-#if NUNIT25
-
-    [TestFixture(typeof(MySqlConnection), typeof(MySQLEstateStore), Description = "Estate store tests (MySQL)")]
-    [TestFixture(typeof(SqlConnection), typeof(MSSQLEstateStore), Description = "Estate store tests (MS SQL Server)")]
-    [TestFixture(typeof(SqliteConnection), typeof(SQLiteEstateStore), Description = "Estate store tests (SQLite)")]
-
-#else
-
     [TestFixture(Description = "Estate store tests (SQLite)")]
     public class SQLiteEstateTests : EstateTests<SqliteConnection, SQLiteEstateStore>
     {
@@ -73,8 +63,6 @@ namespace OpenSim.Data.Tests
     {
     }
 
-#endif
-
     public class EstateTests<TConn, TEstateStore> : BasicDataServiceTest<TConn, TEstateStore>
         where TConn : DbConnection, new()
         where TEstateStore : class, IEstateDataStore, new()
@@ -520,6 +508,5 @@ namespace OpenSim.Data.Tests
         }
 
         #endregion
-
     }
-}
+}
\ No newline at end of file
diff --git a/OpenSim/Data/Tests/InventoryTests.cs b/OpenSim/Data/Tests/InventoryTests.cs
index 9c2a2d6fd5..758f9704b7 100644
--- a/OpenSim/Data/Tests/InventoryTests.cs
+++ b/OpenSim/Data/Tests/InventoryTests.cs
@@ -25,12 +25,9 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-// #define NUNIT25
-
 using System;
 using log4net.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using log4net;
@@ -49,14 +46,6 @@ using OpenSim.Data.SQLite;
 
 namespace OpenSim.Data.Tests
 {
-#if NUNIT25
-
-    [TestFixture(typeof(SqliteConnection), typeof(SQLiteInventoryStore), Description = "Inventory store tests (SQLite)")]
-    [TestFixture(typeof(MySqlConnection), typeof(MySQLInventoryData), Description = "Inventory store tests (MySQL)")]
-    [TestFixture(typeof(SqlConnection), typeof(MSSQLInventoryData), Description = "Inventory store tests (MS SQL Server)")]
-
-#else
-
     [TestFixture(Description = "Inventory store tests (SQLite)")]
     public class SQLiteInventoryTests : InventoryTests<SqliteConnection, SQLiteInventoryStore>
     {
@@ -71,7 +60,6 @@ namespace OpenSim.Data.Tests
     public class MSSQLInventoryTests : InventoryTests<SqlConnection, MSSQLInventoryData>
     {
     }
-#endif
 
     public class InventoryTests<TConn, TInvStore> : BasicDataServiceTest<TConn, TInvStore>
         where TConn : DbConnection, new()
diff --git a/OpenSim/Data/Tests/PropertyCompareConstraint.cs b/OpenSim/Data/Tests/PropertyCompareConstraint.cs
index f3d41df586..6c79bda9ec 100644
--- a/OpenSim/Data/Tests/PropertyCompareConstraint.cs
+++ b/OpenSim/Data/Tests/PropertyCompareConstraint.cs
@@ -34,7 +34,6 @@ using System.Linq.Expressions;
 using System.Reflection;
 using NUnit.Framework;
 using NUnit.Framework.Constraints;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 
diff --git a/OpenSim/Data/Tests/PropertyScrambler.cs b/OpenSim/Data/Tests/PropertyScrambler.cs
index 132294ad30..c5d40c2373 100644
--- a/OpenSim/Data/Tests/PropertyScrambler.cs
+++ b/OpenSim/Data/Tests/PropertyScrambler.cs
@@ -32,13 +32,11 @@ using System.Linq.Expressions;
 using System.Reflection;
 using System.Text;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 
 namespace OpenSim.Data.Tests
 {
-
     //This is generic so that the lambda expressions will work right in IDEs.
     public class PropertyScrambler<T>
     {
diff --git a/OpenSim/Data/Tests/RegionTests.cs b/OpenSim/Data/Tests/RegionTests.cs
index 23d498d6fa..9598716e0d 100644
--- a/OpenSim/Data/Tests/RegionTests.cs
+++ b/OpenSim/Data/Tests/RegionTests.cs
@@ -31,7 +31,6 @@ using System.Drawing;
 using System.Text;
 using log4net.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Region.Framework.Interfaces;
@@ -52,14 +51,6 @@ using OpenSim.Data.SQLite;
 
 namespace OpenSim.Data.Tests
 {
-#if NUNIT25
-
-    [TestFixture(typeof(SqliteConnection), typeof(SQLiteRegionData), Description = "Region store tests (SQLite)")]
-    [TestFixture(typeof(MySqlConnection), typeof(MySqlRegionData), Description = "Region store tests (MySQL)")]
-    [TestFixture(typeof(SqlConnection), typeof(MSSQLRegionData), Description = "Region store tests (MS SQL Server)")]
-
-#else
-
     [TestFixture(Description = "Region store tests (SQLite)")]
     public class SQLiteRegionTests : RegionTests<SqliteConnection, SQLiteSimulationData>
     {
@@ -75,8 +66,6 @@ namespace OpenSim.Data.Tests
     {
     }
 
-#endif
-
     public class RegionTests<TConn, TRegStore> : BasicDataServiceTest<TConn, TRegStore>
         where TConn : DbConnection, new()
         where TRegStore : class, ISimulationDataStore, new()
diff --git a/OpenSim/Framework/Servers/Tests/OSHttpTests.cs b/OpenSim/Framework/Servers/Tests/OSHttpTests.cs
index e62407adfa..dc4eb8f4bf 100644
--- a/OpenSim/Framework/Servers/Tests/OSHttpTests.cs
+++ b/OpenSim/Framework/Servers/Tests/OSHttpTests.cs
@@ -34,7 +34,6 @@ using System.Text;
 using HttpServer;
 using HttpServer.FormDecoders;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenSim.Framework.Servers.HttpServer;
 
 namespace OpenSim.Framework.Servers.Tests
diff --git a/OpenSim/Framework/Tests/AnimationTests.cs b/OpenSim/Framework/Tests/AnimationTests.cs
index 719ddce306..9aa95afa43 100644
--- a/OpenSim/Framework/Tests/AnimationTests.cs
+++ b/OpenSim/Framework/Tests/AnimationTests.cs
@@ -28,7 +28,6 @@
 using System;
 using System.Reflection;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenMetaverse.StructuredData;
 using OpenSim.Framework;
diff --git a/OpenSim/Framework/Tests/PrimeNumberHelperTests.cs b/OpenSim/Framework/Tests/PrimeNumberHelperTests.cs
index d741f9116d..36bc6e75f9 100644
--- a/OpenSim/Framework/Tests/PrimeNumberHelperTests.cs
+++ b/OpenSim/Framework/Tests/PrimeNumberHelperTests.cs
@@ -28,7 +28,6 @@
 using System;
 using System.Reflection;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenMetaverse.StructuredData;
 using OpenSim.Framework;
@@ -38,8 +37,6 @@ namespace OpenSim.Framework.Tests
     [TestFixture]
     public class PrimeNumberHelperTests
     {
-        
-
         [Test]
         public void TestGetPrime()
         {
diff --git a/OpenSim/Framework/Tests/UtilTest.cs b/OpenSim/Framework/Tests/UtilTest.cs
index 89f5c0cba9..5eac411944 100644
--- a/OpenSim/Framework/Tests/UtilTest.cs
+++ b/OpenSim/Framework/Tests/UtilTest.cs
@@ -27,7 +27,6 @@
 
 using System;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Tests.Common;
 
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiveTestCase.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiveTestCase.cs
index 023c452a23..3ec5e53114 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiveTestCase.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiveTestCase.cs
@@ -31,7 +31,6 @@ using System.IO;
 using System.Reflection;
 using System.Threading;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Data;
 using OpenSim.Framework;
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiverTests.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiverTests.cs
index edbbd81106..67d71596bf 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiverTests.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiverTests.cs
@@ -31,7 +31,6 @@ using System.IO;
 using System.Reflection;
 using System.Threading;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Data;
 using OpenSim.Framework;
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/PathTests.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/PathTests.cs
index 34eeaf3672..4b7de0ca47 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/PathTests.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/PathTests.cs
@@ -31,7 +31,6 @@ using System.IO;
 using System.Reflection;
 using System.Threading;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Data;
 using OpenSim.Framework;
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/Tests/GridConnectorsTests.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/Tests/GridConnectorsTests.cs
index e54ee02f43..18db9fa0e3 100644
--- a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/Tests/GridConnectorsTests.cs
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/Tests/GridConnectorsTests.cs
@@ -32,7 +32,6 @@ using System.Reflection;
 using System.Threading;
 using log4net.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using Nini.Config;
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Presence/Tests/PresenceConnectorsTests.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Presence/Tests/PresenceConnectorsTests.cs
index ef910f4c26..e471f756d0 100644
--- a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Presence/Tests/PresenceConnectorsTests.cs
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Presence/Tests/PresenceConnectorsTests.cs
@@ -32,7 +32,6 @@ using System.Reflection;
 using System.Threading;
 using log4net.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using Nini.Config;
diff --git a/OpenSim/Region/CoreModules/World/Archiver/Tests/ArchiverTests.cs b/OpenSim/Region/CoreModules/World/Archiver/Tests/ArchiverTests.cs
index 04b6e3d3f9..e2760a2065 100644
--- a/OpenSim/Region/CoreModules/World/Archiver/Tests/ArchiverTests.cs
+++ b/OpenSim/Region/CoreModules/World/Archiver/Tests/ArchiverTests.cs
@@ -32,7 +32,6 @@ using System.Reflection;
 using System.Threading;
 using log4net.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenMetaverse.Assets;
 using OpenSim.Framework;
diff --git a/OpenSim/Region/CoreModules/World/Media/Moap/Tests/MoapTests.cs b/OpenSim/Region/CoreModules/World/Media/Moap/Tests/MoapTests.cs
index 7a68e55c7e..5b85830f5f 100644
--- a/OpenSim/Region/CoreModules/World/Media/Moap/Tests/MoapTests.cs
+++ b/OpenSim/Region/CoreModules/World/Media/Moap/Tests/MoapTests.cs
@@ -32,7 +32,6 @@ using System.Reflection;
 using System.Threading;
 using log4net.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenMetaverse.Assets;
 using OpenSim.Framework;
diff --git a/OpenSim/Region/CoreModules/World/Serialiser/Tests/SerialiserTests.cs b/OpenSim/Region/CoreModules/World/Serialiser/Tests/SerialiserTests.cs
index f10e848f68..dafaa0c107 100644
--- a/OpenSim/Region/CoreModules/World/Serialiser/Tests/SerialiserTests.cs
+++ b/OpenSim/Region/CoreModules/World/Serialiser/Tests/SerialiserTests.cs
@@ -30,7 +30,6 @@ using System.IO;
 using System.Xml;
 using log4net.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Region.Framework.Scenes;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/AttachmentTests.cs b/OpenSim/Region/Framework/Scenes/Tests/AttachmentTests.cs
index af4464081b..855b5894b6 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/AttachmentTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/AttachmentTests.cs
@@ -34,7 +34,6 @@ using System.Timers;
 using Timer=System.Timers.Timer;
 using Nini.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/EntityManagerTests.cs b/OpenSim/Region/Framework/Scenes/Tests/EntityManagerTests.cs
index b3c3e22af6..667b74ea95 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/EntityManagerTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/EntityManagerTests.cs
@@ -32,7 +32,6 @@ using System.Text;
 using System.Collections.Generic;
 using Nini.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/SceneGraphTests.cs b/OpenSim/Region/Framework/Scenes/Tests/SceneGraphTests.cs
index 9244bc3461..ca635d708d 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/SceneGraphTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/SceneGraphTests.cs
@@ -28,7 +28,6 @@
 using System;
 using System.Reflection;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/SceneObjectBasicTests.cs b/OpenSim/Region/Framework/Scenes/Tests/SceneObjectBasicTests.cs
index 4969b09149..a6a95ef885 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/SceneObjectBasicTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/SceneObjectBasicTests.cs
@@ -28,7 +28,6 @@
 using System;
 using System.Reflection;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/SceneObjectDeRezTests.cs b/OpenSim/Region/Framework/Scenes/Tests/SceneObjectDeRezTests.cs
index 39116b6615..0d260266ef 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/SceneObjectDeRezTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/SceneObjectDeRezTests.cs
@@ -30,7 +30,6 @@ using System.Collections.Generic;
 using System.Reflection;
 using Nini.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/SceneObjectLinkingTests.cs b/OpenSim/Region/Framework/Scenes/Tests/SceneObjectLinkingTests.cs
index b84298f2fa..bdfcd1dc29 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/SceneObjectLinkingTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/SceneObjectLinkingTests.cs
@@ -29,7 +29,6 @@ using System;
 using System.Collections.Generic;
 using System.Reflection;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/SceneObjectUserGroupTests.cs b/OpenSim/Region/Framework/Scenes/Tests/SceneObjectUserGroupTests.cs
index c78038f7a7..8876a435b6 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/SceneObjectUserGroupTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/SceneObjectUserGroupTests.cs
@@ -30,7 +30,6 @@ using System.Collections.Generic;
 using System.Reflection;
 using Nini.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTests.cs b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTests.cs
index fd2d6fab2d..efb757fa6c 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTests.cs
@@ -34,7 +34,6 @@ using System.Timers;
 using Timer=System.Timers.Timer;
 using Nini.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs b/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs
index 9aba8a8bfc..abcce66e23 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs
@@ -34,7 +34,6 @@ using System.Timers;
 using Timer=System.Timers.Timer;
 using Nini.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/StandaloneTeleportTests.cs b/OpenSim/Region/Framework/Scenes/Tests/StandaloneTeleportTests.cs
index cafe48afdd..8588f7f599 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/StandaloneTeleportTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/StandaloneTeleportTests.cs
@@ -29,7 +29,6 @@ using System;
 using System.Reflection;
 using Nini.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/TaskInventoryTests.cs b/OpenSim/Region/Framework/Scenes/Tests/TaskInventoryTests.cs
index fe59d4f031..8138bcc19a 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/TaskInventoryTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/TaskInventoryTests.cs
@@ -34,7 +34,6 @@ using System.Timers;
 using Timer=System.Timers.Timer;
 using Nini.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenMetaverse.Assets;
 using OpenSim.Framework;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/UuidGathererTests.cs b/OpenSim/Region/Framework/Scenes/Tests/UuidGathererTests.cs
index 5e6124b4f9..6b70865533 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/UuidGathererTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/UuidGathererTests.cs
@@ -28,7 +28,6 @@
 using System.Collections.Generic;
 using System.Text;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Region.Framework.Scenes;
diff --git a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/Tests/GroupsModuleTests.cs b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/Tests/GroupsModuleTests.cs
index bc55b04743..6de97b7269 100644
--- a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/Tests/GroupsModuleTests.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/Tests/GroupsModuleTests.cs
@@ -29,7 +29,6 @@ using System;
 using System.Reflection;
 using Nini.Config;
 using NUnit.Framework;
-using NUnit.Framework.SyntaxHelpers;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
diff --git a/OpenSim/Tests/Common/DoubleToleranceConstraint.cs b/OpenSim/Tests/Common/DoubleToleranceConstraint.cs
index c397a6230b..b2f20571ae 100644
--- a/OpenSim/Tests/Common/DoubleToleranceConstraint.cs
+++ b/OpenSim/Tests/Common/DoubleToleranceConstraint.cs
@@ -27,6 +27,7 @@
 
 using System;
 using NUnit.Framework;
+using NUnit.Framework.Constraints;
 
 namespace OpenSim.Tests.Common
 {
diff --git a/OpenSim/Tests/Common/TestHelper.cs b/OpenSim/Tests/Common/TestHelper.cs
index 9d530635f3..1722e59864 100644
--- a/OpenSim/Tests/Common/TestHelper.cs
+++ b/OpenSim/Tests/Common/TestHelper.cs
@@ -27,11 +27,10 @@
 
 using System;
 using System.Diagnostics;
+using NUnit.Framework;
 
 namespace OpenSim.Tests.Common
 {
-    public delegate void TestDelegate();
-
     public class TestHelper
     {
         public static bool AssertThisDelegateCausesArgumentException(TestDelegate d)
diff --git a/OpenSim/Tests/Common/VectorToleranceConstraint.cs b/OpenSim/Tests/Common/VectorToleranceConstraint.cs
index 118cc707f8..2fa20edec9 100644
--- a/OpenSim/Tests/Common/VectorToleranceConstraint.cs
+++ b/OpenSim/Tests/Common/VectorToleranceConstraint.cs
@@ -28,6 +28,7 @@
 using System;
 using OpenMetaverse;
 using NUnit.Framework;
+using NUnit.Framework.Constraints;
 
 namespace OpenSim.Tests.Common
 {
diff --git a/bin/nunit.framework.dll b/bin/nunit.framework.dll
index d68d9f20c5..875e098420 100644
Binary files a/bin/nunit.framework.dll and b/bin/nunit.framework.dll differ