diff --git a/framework-dotnet/src/lib/MBS.Core/Collections/Generic/ExtensionMethods.cs b/framework-dotnet/src/lib/MBS.Core/Collections/Generic/ExtensionMethods.cs
index 0b58403..fbe1f43 100755
--- a/framework-dotnet/src/lib/MBS.Core/Collections/Generic/ExtensionMethods.cs
+++ b/framework-dotnet/src/lib/MBS.Core/Collections/Generic/ExtensionMethods.cs
@@ -62,6 +62,13 @@ namespace MBS.Core.Collections.Generic
 				list.Add(item);
 			}
 		}
+		public static void AddRange<TKey, TValue>(this ICollection<KeyValuePair<TKey, TValue>> list, IEnumerable<KeyValuePair<TKey, TValue>> items)
+		{
+			foreach (KeyValuePair<TKey, TValue> kvp in items)
+			{
+				list.Add(kvp);
+			}
+		}
 
 		public static T[] ToNullTerminatedArray<T>(this IEnumerable<T> enumerable) where T : class
 		{
diff --git a/framework-dotnet/src/lib/MBS.Core/Reflection/TypeLoader.cs b/framework-dotnet/src/lib/MBS.Core/Reflection/TypeLoader.cs
index 4aa052e..acdfefa 100644
--- a/framework-dotnet/src/lib/MBS.Core/Reflection/TypeLoader.cs
+++ b/framework-dotnet/src/lib/MBS.Core/Reflection/TypeLoader.cs
@@ -129,12 +129,12 @@ public class TypeLoader
 	}
 
 	private static Type[] mvarAvailableTypes = null;
-	public static T[] GetAvailableTypes<T>(Assembly[] additionalAssemblies = null) where T : class
+	public static T[] GetAvailableTypes<T>(Assembly[] additionalAssemblies = null, bool resetCache = false) where T : class
 	{
 		Type[] ts = null;
 		try
 		{
-			ts = GetAvailableTypes(new Type[] { typeof(T) }, additionalAssemblies);
+			ts = GetAvailableTypes(new Type[] { typeof(T) }, additionalAssemblies, resetCache);
 		}
 		catch (ReflectionTypeLoadException ex)
 		{
@@ -156,8 +156,12 @@ public class TypeLoader
 		}
 		return list.ToArray();
 	}
-	public static Type[] GetAvailableTypes(Type[] inheritsFrom = null, Assembly[] additionalAssemblies = null)
+	public static Type[] GetAvailableTypes(Type[] inheritsFrom = null, Assembly[] additionalAssemblies = null, bool resetCache = false)
 	{
+		if (resetCache)
+		{
+			mvarAvailableTypes = null;
+		}
 		if (mvarAvailableTypes == null)
 		{
 			List<Type> types = new List<Type>();
@@ -210,6 +214,7 @@ public class TypeLoader
 			List<Type> retval = new List<Type>();
 			foreach (Type t in mvarAvailableTypes)
 			{
+				string typeFullName = t.FullName;
 				foreach (Type inheritsFromType in inheritsFrom)
 				{
 					if (t.FullName.Contains("Mini."))