diff --git a/AssemblyData/AssemblyData.csproj b/AssemblyData/AssemblyData.csproj
index 0a917298..2a16b332 100644
--- a/AssemblyData/AssemblyData.csproj
+++ b/AssemblyData/AssemblyData.csproj
@@ -78,6 +78,10 @@
       <Project>{5C93C5E2-196F-4877-BF65-96FEBFCEFCA1}</Project>
       <Name>de4dot.mdecrypt</Name>
     </ProjectReference>
+    <ProjectReference Include="..\dot10\src\dot10.csproj">
+      <Project>{FDFC1237-143F-4919-8318-4926901F4639}</Project>
+      <Name>dot10</Name>
+    </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
diff --git a/AssemblyData/methodsrewriter/AssemblyResolver.cs b/AssemblyData/methodsrewriter/AssemblyResolver.cs
index cd6395da..16dcdeac 100644
--- a/AssemblyData/methodsrewriter/AssemblyResolver.cs
+++ b/AssemblyData/methodsrewriter/AssemblyResolver.cs
@@ -20,7 +20,7 @@
 using System;
 using System.Collections.Generic;
 using System.Reflection;
-using Mono.Cecil;
+using dot10.DotNet;
 using de4dot.blocks;
 
 namespace AssemblyData.methodsrewriter {
@@ -48,38 +48,38 @@ namespace AssemblyData.methodsrewriter {
 			}
 		}
 
-		TypeResolver getTypeResolver(TypeReference typeReference) {
-			var key = typeReference.Namespace + "." + typeReference.Name;
+		TypeResolver getTypeResolver(ITypeDefOrRef typeRef) {
+			var key = typeRef.Namespace + "." + typeRef.Name;
 			List<TypeResolver> list;
 			if (!types.TryGetValue(key, out list))
 				return null;
 
-			if (typeReference is TypeDefinition) {
+			if (typeRef is TypeDef) {
 				foreach (var resolver in list) {
-					if (resolver.type.MetadataToken == typeReference.MetadataToken.ToInt32())
+					if (resolver.type.MetadataToken == typeRef.MDToken.Raw)
 						return resolver;
 				}
 			}
 
 			foreach (var resolver in list) {
-				if (ResolverUtils.compareTypes(resolver.type, typeReference))
+				if (ResolverUtils.compareTypes(resolver.type, typeRef))
 					return resolver;
 			}
 
 			return null;
 		}
 
-		public FieldInfo resolve(FieldReference fieldReference) {
-			var resolver = getTypeResolver(fieldReference.DeclaringType);
+		public FieldInfo resolve(IField fieldRef) {
+			var resolver = getTypeResolver(fieldRef.DeclaringType);
 			if (resolver != null)
-				return resolver.resolve(fieldReference);
-			return resolveGlobalField(fieldReference);
+				return resolver.resolve(fieldRef);
+			return resolveGlobalField(fieldRef);
 		}
 
-		FieldInfo resolveGlobalField(FieldReference fieldReference) {
+		FieldInfo resolveGlobalField(IField fieldRef) {
 			initGlobalFields();
 			foreach (var globalField in globalFields) {
-				if (ResolverUtils.compareFields(globalField, fieldReference))
+				if (ResolverUtils.compareFields(globalField, fieldRef))
 					return globalField;
 			}
 			return null;
@@ -97,17 +97,17 @@ namespace AssemblyData.methodsrewriter {
 			}
 		}
 
-		public MethodBase resolve(MethodReference methodReference) {
-			var resolver = getTypeResolver(methodReference.DeclaringType);
+		public MethodBase resolve(IMethod methodRef) {
+			var resolver = getTypeResolver(methodRef.DeclaringType);
 			if (resolver != null)
-				return resolver.resolve(methodReference);
-			return resolveGlobalMethod(methodReference);
+				return resolver.resolve(methodRef);
+			return resolveGlobalMethod(methodRef);
 		}
 
-		MethodBase resolveGlobalMethod(MethodReference methodReference) {
+		MethodBase resolveGlobalMethod(IMethod methodRef) {
 			initGlobalMethods();
 			foreach (var globalMethod in globalMethods) {
-				if (ResolverUtils.compareMethods(globalMethod, methodReference))
+				if (ResolverUtils.compareMethods(globalMethod, methodRef))
 					return globalMethod;
 			}
 			return null;
@@ -125,12 +125,12 @@ namespace AssemblyData.methodsrewriter {
 			}
 		}
 
-		public Type resolve(TypeReference typeReference) {
-			var resolver = getTypeResolver(typeReference);
+		public Type resolve(ITypeDefOrRef typeRef) {
+			var resolver = getTypeResolver(typeRef);
 			if (resolver != null)
 				return resolver.type;
 
-			if (typeReference.IsGenericParameter)
+			if (typeRef.IsGenericParameter)
 				return typeof(MGenericParameter);
 
 			return null;
diff --git a/AssemblyData/methodsrewriter/CodeGenerator.cs b/AssemblyData/methodsrewriter/CodeGenerator.cs
index fb15a971..0d374468 100644
--- a/AssemblyData/methodsrewriter/CodeGenerator.cs
+++ b/AssemblyData/methodsrewriter/CodeGenerator.cs
@@ -22,13 +22,13 @@ using System.Collections.Generic;
 using System.Diagnostics;
 using System.Reflection;
 using System.Reflection.Emit;
-using Mono.Cecil;
-using Mono.Cecil.Cil;
+using dot10.DotNet.Emit;
+using dot10.DotNet;
 using de4dot.blocks;
 
-using OpCode = Mono.Cecil.Cil.OpCode;
-using OpCodes = Mono.Cecil.Cil.OpCodes;
-using OperandType = Mono.Cecil.Cil.OperandType;
+using OpCode = dot10.DotNet.Emit.OpCode;
+using OpCodes = dot10.DotNet.Emit.OpCodes;
+using OperandType = dot10.DotNet.Emit.OperandType;
 using ROpCode = System.Reflection.Emit.OpCode;
 using ROpCodes = System.Reflection.Emit.OpCodes;
 
@@ -94,7 +94,7 @@ namespace AssemblyData.methodsrewriter {
 
 			var dm = new DynamicMethod(methodName, methodReturnType, methodParameters, methodInfo.methodBase.Module, true);
 			var lastInstr = allInstructions[allInstructions.Count - 1];
-			ilg = dm.GetILGenerator(lastInstr.Offset + lastInstr.GetSize());
+			ilg = dm.GetILGenerator((int)lastInstr.Offset + lastInstr.GetSize());
 
 			initInstrToIndex();
 			initLocals();
@@ -134,7 +134,7 @@ namespace AssemblyData.methodsrewriter {
 				if (ex.FilterStart == instr) {
 				}
 				if (ex.HandlerStart == instr) {
-					if (ex.HandlerType == ExceptionHandlerType.Finally)
+					if (ex.HandlerType == ExceptionClause.Finally)
 						ilg.BeginFinallyBlock();
 					else
 						ilg.BeginCatchBlock(Resolver.getRtType(ex.CatchType));
@@ -178,7 +178,7 @@ namespace AssemblyData.methodsrewriter {
 
 		void initLocals() {
 			locals = new List<LocalBuilder>();
-			foreach (var local in methodInfo.methodDefinition.Body.Variables)
+			foreach (var local in methodInfo.methodDef.CilBody.Variables)
 				locals.Add(ilg.DeclareLocal(Resolver.getRtType(local.VariableType), local.IsPinned));
 			tempObjLocal = ilg.DeclareLocal(typeof(object));
 			tempObjArrayLocal = ilg.DeclareLocal(typeof(object[]));
@@ -256,11 +256,11 @@ namespace AssemblyData.methodsrewriter {
 			return labels;
 		}
 
-		int getArgIndex(ParameterDefinition arg) {
-			return arg.Sequence;
+		int getArgIndex(Parameter arg) {
+			return arg.Index;
 		}
 
-		int getLocalIndex(VariableDefinition local) {
+		int getLocalIndex(Local local) {
 			return local.Index;
 		}
 
@@ -311,7 +311,7 @@ namespace AssemblyData.methodsrewriter {
 			case OperandType.InlineType:
 			case OperandType.InlineMethod:
 			case OperandType.InlineField:
-				var obj = Resolver.getRtObject((MemberReference)instr.Operand);
+				var obj = Resolver.getRtObject((ITokenOperand)instr.Operand);
 				if (obj is ConstructorInfo)
 					ilg.Emit(opcode, (ConstructorInfo)obj);
 				else if (obj is MethodInfo)
@@ -325,19 +325,19 @@ namespace AssemblyData.methodsrewriter {
 				break;
 
 			case OperandType.InlineArg:
-				ilg.Emit(opcode, checked((short)getArgIndex((ParameterDefinition)instr.Operand)));
+				ilg.Emit(opcode, checked((short)getArgIndex((Parameter)instr.Operand)));
 				break;
 
 			case OperandType.ShortInlineArg:
-				ilg.Emit(opcode, checked((byte)getArgIndex((ParameterDefinition)instr.Operand)));
+				ilg.Emit(opcode, checked((byte)getArgIndex((Parameter)instr.Operand)));
 				break;
 
 			case OperandType.InlineVar:
-				ilg.Emit(opcode, checked((short)getLocalIndex((VariableDefinition)instr.Operand)));
+				ilg.Emit(opcode, checked((short)getLocalIndex((Local)instr.Operand)));
 				break;
 
 			case OperandType.ShortInlineVar:
-				ilg.Emit(opcode, checked((byte)getLocalIndex((VariableDefinition)instr.Operand)));
+				ilg.Emit(opcode, checked((byte)getLocalIndex((Local)instr.Operand)));
 				break;
 
 			case OperandType.InlineSig:	//TODO:
diff --git a/AssemblyData/methodsrewriter/IMethodsRewriter.cs b/AssemblyData/methodsrewriter/IMethodsRewriter.cs
index dc818009..44761145 100644
--- a/AssemblyData/methodsrewriter/IMethodsRewriter.cs
+++ b/AssemblyData/methodsrewriter/IMethodsRewriter.cs
@@ -19,7 +19,6 @@
 
 using System;
 using System.Reflection;
-using Mono.Cecil;
 
 namespace AssemblyData.methodsrewriter {
 	interface IMethodsRewriter {
diff --git a/AssemblyData/methodsrewriter/MField.cs b/AssemblyData/methodsrewriter/MField.cs
index 4cd74c8e..75cf53ba 100644
--- a/AssemblyData/methodsrewriter/MField.cs
+++ b/AssemblyData/methodsrewriter/MField.cs
@@ -18,20 +18,20 @@
 */
 
 using System.Reflection;
-using Mono.Cecil;
+using dot10.DotNet;
 
 namespace AssemblyData.methodsrewriter {
 	class MField {
 		public FieldInfo fieldInfo;
-		public FieldDefinition fieldDefinition;
+		public FieldDef fieldDef;
 
-		public MField(FieldInfo fieldInfo, FieldDefinition fieldDefinition) {
+		public MField(FieldInfo fieldInfo, FieldDef fieldDef) {
 			this.fieldInfo = fieldInfo;
-			this.fieldDefinition = fieldDefinition;
+			this.fieldDef = fieldDef;
 		}
 
 		public override string ToString() {
-			return fieldDefinition.ToString();
+			return fieldDef.ToString();
 		}
 	}
 }
diff --git a/AssemblyData/methodsrewriter/MMethod.cs b/AssemblyData/methodsrewriter/MMethod.cs
index 4bb3677b..0efccbf8 100644
--- a/AssemblyData/methodsrewriter/MMethod.cs
+++ b/AssemblyData/methodsrewriter/MMethod.cs
@@ -18,23 +18,23 @@
 */
 
 using System.Reflection;
-using Mono.Cecil;
+using dot10.DotNet;
 
 namespace AssemblyData.methodsrewriter {
 	class MMethod {
 		public MethodBase methodBase;
-		public MethodDefinition methodDefinition;
-		public MMethod(MethodBase methodBase, MethodDefinition methodDefinition) {
+		public MethodDef methodDef;
+		public MMethod(MethodBase methodBase, MethodDef methodDefinition) {
 			this.methodBase = methodBase;
-			this.methodDefinition = methodDefinition;
+			this.methodDef = methodDefinition;
 		}
 
 		public bool hasInstructions() {
-			return methodDefinition.Body != null && methodDefinition.Body.Instructions.Count != 0;
+			return methodDef.CilBody != null && methodDef.CilBody.Instructions.Count != 0;
 		}
 
 		public override string ToString() {
-			return methodDefinition.ToString();
+			return methodDef.ToString();
 		}
 	}
 }
diff --git a/AssemblyData/methodsrewriter/MModule.cs b/AssemblyData/methodsrewriter/MModule.cs
index 8041bba3..6639f8da 100644
--- a/AssemblyData/methodsrewriter/MModule.cs
+++ b/AssemblyData/methodsrewriter/MModule.cs
@@ -20,74 +20,74 @@
 using System;
 using System.Collections.Generic;
 using System.Reflection;
-using Mono.Cecil;
+using dot10.DotNet;
 using de4dot.blocks;
 
 namespace AssemblyData.methodsrewriter {
 	class MModule {
 		public Module module;
-		public ModuleDefinition moduleDefinition;
+		public ModuleDefMD moduleDef;
 		TypeDefinitionDict<MType> typeReferenceToType = new TypeDefinitionDict<MType>();
 		Dictionary<int, MType> tokenToType = new Dictionary<int, MType>();
 		Dictionary<int, MMethod> tokenToGlobalMethod;
 		Dictionary<int, MField> tokenToGlobalField;
-		TypeDefinition moduleType;
+		TypeDef moduleType;
 
-		public MModule(Module module, ModuleDefinition moduleDefinition) {
+		public MModule(Module module, ModuleDefMD moduleDefinition) {
 			this.module = module;
-			this.moduleDefinition = moduleDefinition;
+			this.moduleDef = moduleDefinition;
 			initTokenToType();
 		}
 
 		void initTokenToType() {
-			moduleType = DotNetUtils.getModuleType(moduleDefinition);
-			foreach (var typeDefinition in moduleDefinition.GetTypes()) {
-				int token = typeDefinition.MetadataToken.ToInt32();
+			moduleType = moduleDef.Types[0];
+			foreach (var typeDef in moduleDef.GetTypes()) {
+				int token = (int)typeDef.MDToken.Raw;
 				Type type;
 				try {
 					type = module.ResolveType(token);
 				}
 				catch {
 					tokenToType[token] = null;
-					typeReferenceToType.add(typeDefinition, null);
+					typeReferenceToType.add(typeDef, null);
 					continue;
 				}
-				var mtype = new MType(type, typeDefinition);
+				var mtype = new MType(type, typeDef);
 				tokenToType[token] = mtype;
-				typeReferenceToType.add(typeDefinition, mtype);
+				typeReferenceToType.add(typeDef, mtype);
 			}
 		}
 
-		public MType getType(TypeReference typeReference) {
-			return typeReferenceToType.find(typeReference);
+		public MType getType(ITypeDefOrRef typeRef) {
+			return typeReferenceToType.find(typeRef);
 		}
 
-		public MMethod getMethod(MethodReference methodReference) {
-			var type = getType(methodReference.DeclaringType);
+		public MMethod getMethod(IMethod methodRef) {
+			var type = getType(methodRef.DeclaringType);
 			if (type != null)
-				return type.getMethod(methodReference);
-			if (!MemberReferenceHelper.compareTypes(moduleType, methodReference.DeclaringType))
+				return type.getMethod(methodRef);
+			if (!new SigComparer().Equals(moduleType, methodRef.DeclaringType))
 				return null;
 
 			initGlobalMethods();
 			foreach (var method in tokenToGlobalMethod.Values) {
-				if (MemberReferenceHelper.compareMethodReference(methodReference, method.methodDefinition))
+				if (new SigComparer().Equals(methodRef, method.methodDef))
 					return method;
 			}
 
 			return null;
 		}
 
-		public MField getField(FieldReference fieldReference) {
-			var type = getType(fieldReference.DeclaringType);
+		public MField getField(IField fieldRef) {
+			var type = getType(fieldRef.DeclaringType);
 			if (type != null)
-				return type.getField(fieldReference);
-			if (!MemberReferenceHelper.compareTypes(moduleType, fieldReference.DeclaringType))
+				return type.getField(fieldRef);
+			if (!new SigComparer().Equals(moduleType, fieldRef.DeclaringType))
 				return null;
 
 			initGlobalFields();
 			foreach (var field in tokenToGlobalField.Values) {
-				if (MemberReferenceHelper.compareFieldReference(fieldReference, field.fieldDefinition))
+				if (new SigComparer().Equals(fieldRef, field.fieldDef))
 					return field;
 			}
 
@@ -120,7 +120,7 @@ namespace AssemblyData.methodsrewriter {
 			foreach (var m in moduleType.Methods) {
 				if (m.Name == ".cctor")	//TODO: Use module.GetMethod(token) to get .cctor method
 					continue;
-				var token = m.MetadataToken.ToInt32();
+				var token = (int)m.MDToken.Raw;
 				tokenToGlobalMethod[token] = new MMethod(tmpTokenToGlobalMethod[token], m);
 			}
 		}
@@ -135,13 +135,13 @@ namespace AssemblyData.methodsrewriter {
 			foreach (var f in module.GetFields(flags))
 				tmpTokenToGlobalField[f.MetadataToken] = f;
 			foreach (var f in moduleType.Fields) {
-				var token = f.MetadataToken.ToInt32();
+				var token = (int)f.MDToken.Raw;
 				tokenToGlobalField[token] = new MField(tmpTokenToGlobalField[token], f);
 			}
 		}
 
 		public override string ToString() {
-			return moduleDefinition.FullyQualifiedName;
+			return moduleDef.Location;
 		}
 	}
 }
diff --git a/AssemblyData/methodsrewriter/MType.cs b/AssemblyData/methodsrewriter/MType.cs
index ad4f5f07..00d42751 100644
--- a/AssemblyData/methodsrewriter/MType.cs
+++ b/AssemblyData/methodsrewriter/MType.cs
@@ -20,31 +20,31 @@
 using System;
 using System.Collections.Generic;
 using System.Reflection;
-using Mono.Cecil;
+using dot10.DotNet;
 using de4dot.blocks;
 
 namespace AssemblyData.methodsrewriter {
 	class MType {
 		public Type type;
-		public TypeDefinition typeDefinition;
+		public TypeDef typeDef;
 		Dictionary<int, MMethod> tokenToMethod;
 		MethodDefinitionDict<MMethod> methodReferenceToMethod;
 		Dictionary<int, MField> tokenToField;
 		FieldDefinitionDict<MField> fieldReferenceToField;
 
-		public MType(Type type, TypeDefinition typeDefinition) {
+		public MType(Type type, TypeDef typeDefinition) {
 			this.type = type;
-			this.typeDefinition = typeDefinition;
+			this.typeDef = typeDefinition;
 		}
 
-		public MMethod getMethod(MethodReference methodReference) {
+		public MMethod getMethod(IMethod methodRef) {
 			initMethods();
-			return methodReferenceToMethod.find(methodReference);
+			return methodReferenceToMethod.find(methodRef);
 		}
 
-		public MField getField(FieldReference fieldReference) {
+		public MField getField(IField fieldRef) {
 			initFields();
-			return fieldReferenceToField.find(fieldReference);
+			return fieldReferenceToField.find(fieldRef);
 		}
 
 		public MMethod getMethod(int token) {
@@ -60,41 +60,41 @@ namespace AssemblyData.methodsrewriter {
 		void initMethods() {
 			if (tokenToMethod != null)
 				return;
-			tokenToMethod = new Dictionary<int, MMethod>(typeDefinition.Methods.Count);
+			tokenToMethod = new Dictionary<int, MMethod>(typeDef.Methods.Count);
 			methodReferenceToMethod = new MethodDefinitionDict<MMethod>();
 
 			var tmpTokenToMethod = new Dictionary<int, MethodBase>();
 			var flags = BindingFlags.DeclaredOnly | BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic;
 			foreach (var m in ResolverUtils.getMethodBases(type, flags))
 				tmpTokenToMethod[m.MetadataToken] = m;
-			foreach (var m in typeDefinition.Methods) {
-				var token = m.MetadataToken.ToInt32();
+			foreach (var m in typeDef.Methods) {
+				var token = (int)m.MDToken.Raw;
 				var method = new MMethod(tmpTokenToMethod[token], m);
 				tokenToMethod[token] = method;
-				methodReferenceToMethod.add(method.methodDefinition, method);
+				methodReferenceToMethod.add(method.methodDef, method);
 			}
 		}
 
 		void initFields() {
 			if (tokenToField != null)
 				return;
-			tokenToField = new Dictionary<int, MField>(typeDefinition.Fields.Count);
+			tokenToField = new Dictionary<int, MField>(typeDef.Fields.Count);
 			fieldReferenceToField = new FieldDefinitionDict<MField>();
 
 			var tmpTokenToField = new Dictionary<int, FieldInfo>();
 			var flags = BindingFlags.DeclaredOnly | BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic;
 			foreach (var f in type.GetFields(flags))
 				tmpTokenToField[f.MetadataToken] = f;
-			foreach (var f in typeDefinition.Fields) {
-				var token = f.MetadataToken.ToInt32();
+			foreach (var f in typeDef.Fields) {
+				var token = (int)f.MDToken.Raw;
 				var field = new MField(tmpTokenToField[token], f);
 				tokenToField[token] = field;
-				fieldReferenceToField.add(field.fieldDefinition, field);
+				fieldReferenceToField.add(field.fieldDef, field);
 			}
 		}
 
 		public override string ToString() {
-			return string.Format("{0:X8} - {1}", typeDefinition.MetadataToken.ToUInt32(), typeDefinition.FullName);
+			return string.Format("{0:X8} - {1}", typeDef.MDToken.Raw, typeDef.FullName);
 		}
 	}
 }
diff --git a/AssemblyData/methodsrewriter/MethodsRewriter.cs b/AssemblyData/methodsrewriter/MethodsRewriter.cs
index c1b3e317..9940499a 100644
--- a/AssemblyData/methodsrewriter/MethodsRewriter.cs
+++ b/AssemblyData/methodsrewriter/MethodsRewriter.cs
@@ -22,12 +22,12 @@ using System.Collections.Generic;
 using System.Diagnostics;
 using System.Reflection;
 using System.Reflection.Emit;
-using Mono.Cecil;
-using Mono.Cecil.Cil;
+using dot10.DotNet.Emit;
+using dot10.DotNet;
 using de4dot.blocks;
 
-using OpCode = Mono.Cecil.Cil.OpCode;
-using OpCodes = Mono.Cecil.Cil.OpCodes;
+using OpCode = dot10.DotNet.Emit.OpCode;
+using OpCodes = dot10.DotNet.Emit.OpCodes;
 using ROpCode = System.Reflection.Emit.OpCode;
 using ROpCodes = System.Reflection.Emit.OpCodes;
 
@@ -191,13 +191,13 @@ namespace AssemblyData.methodsrewriter {
 			var moduleInfo = Resolver.loadAssembly(realMethod.Module);
 			var methodInfo = moduleInfo.getMethod(realMethod);
 			if (!methodInfo.hasInstructions())
-				throw new ApplicationException(string.Format("Method {0} ({1:X8}) has no body", methodInfo.methodDefinition, methodInfo.methodDefinition.MetadataToken.ToUInt32()));
+				throw new ApplicationException(string.Format("Method {0} ({1:X8}) has no body", methodInfo.methodDef, methodInfo.methodDef.MDToken.Raw));
 
 			var codeGenerator = new CodeGenerator(this, newMethodInfo.delegateMethodName);
 			codeGenerator.setMethodInfo(methodInfo);
 			newMethodInfo.delegateType = codeGenerator.DelegateType;
 
-			var blocks = new Blocks(methodInfo.methodDefinition);
+			var blocks = new Blocks(methodInfo.methodDef);
 			foreach (var block in blocks.MethodBlocks.getAllBlocks())
 				update(block, newMethodInfo);
 
@@ -230,14 +230,15 @@ namespace AssemblyData.methodsrewriter {
 			for (int i = 0; i < instrs.Count; i++) {
 				var instr = instrs[i];
 				if (instr.OpCode == OpCodes.Newobj) {
-					var ctor = (MethodReference)instr.Operand;
-					if (MemberReferenceHelper.verifyType(ctor.DeclaringType, "mscorlib", "System.Diagnostics.StackTrace")) {
+					var ctor = (IMethod)instr.Operand;
+					var ctorTypeFullName = ctor.DeclaringType.FullName;
+					if (ctorTypeFullName == "System.Diagnostics.StackTrace") {
 						insertLoadThis(block, i + 1);
 						insertCallOurMethod(block, i + 2, "static_rtFixStackTrace");
 						i += 2;
 						continue;
 					}
-					else if (MemberReferenceHelper.verifyType(ctor.DeclaringType, "mscorlib", "System.Diagnostics.StackFrame")) {
+					else if (ctorTypeFullName == "System.Diagnostics.StackFrame") {
 						insertLoadThis(block, i + 1);
 						insertCallOurMethod(block, i + 2, "static_rtFixStackFrame");
 						i += 2;
@@ -246,18 +247,19 @@ namespace AssemblyData.methodsrewriter {
 				}
 
 				if (instr.OpCode == OpCodes.Call || instr.OpCode == OpCodes.Callvirt) {
-					var calledMethod = (MethodReference)instr.Operand;
-					if (DotNetUtils.isSameAssembly(calledMethod.DeclaringType, "mscorlib")) {
-						if (calledMethod.ToString() == "System.Reflection.Assembly System.Reflection.Assembly::GetAssembly(System.Type)") {
+					var calledMethod = (IMethod)instr.Operand;
+					if (calledMethod.DeclaringType.DefinitionAssembly.IsCorLib()) {
+						var calledMethodFullName = calledMethod.FullName;
+						if (calledMethodFullName == "System.Reflection.Assembly System.Reflection.Assembly::GetAssembly(System.Type)") {
 							block.replace(i, 1, Instruction.Create(OpCodes.Nop));
 							insertLoadThis(block, i + 1);
 							insertCallOurMethod(block, i + 2, "static_rtGetAssembly_TypeArg");
 							i += 2;
 							continue;
 						}
-						else if (calledMethod.ToString() == "System.Reflection.Assembly System.Reflection.Assembly::GetCallingAssembly()" ||
-								calledMethod.ToString() == "System.Reflection.Assembly System.Reflection.Assembly::GetEntryAssembly()" ||
-								calledMethod.ToString() == "System.Reflection.Assembly System.Reflection.Assembly::GetExecutingAssembly()") {
+						else if (calledMethodFullName == "System.Reflection.Assembly System.Reflection.Assembly::GetCallingAssembly()" ||
+								calledMethodFullName == "System.Reflection.Assembly System.Reflection.Assembly::GetEntryAssembly()" ||
+								calledMethodFullName == "System.Reflection.Assembly System.Reflection.Assembly::GetExecutingAssembly()") {
 							block.replace(i, 1, Instruction.Create(OpCodes.Nop));
 							insertLoadThis(block, i + 1);
 							block.insert(i + 2, Instruction.Create(OpCodes.Ldc_I4, currentMethodInfo.delegateIndex));
@@ -267,7 +269,7 @@ namespace AssemblyData.methodsrewriter {
 						}
 					}
 
-					var method = Resolver.getMethod((MethodReference)instr.Operand);
+					var method = Resolver.getMethod((IMethod)instr.Operand);
 					if (method != null) {
 						createMethod(method.methodBase);
 						var newMethodInfo = realMethodToNewMethod[method.methodBase];
@@ -276,17 +278,17 @@ namespace AssemblyData.methodsrewriter {
 						int n = i + 1;
 
 						// Pop all pushed args to a temp array
-						var mparams = getParameters(method.methodDefinition);
+						var mparams = getParameters(method.methodDef);
 						if (mparams.Count > 0) {
 							block.insert(n++, Instruction.Create(OpCodes.Ldc_I4, mparams.Count));
-							var objectType = method.methodDefinition.Module.TypeSystem.Object;
+							var objectType = method.methodDef.DeclaringType.OwnerModule.CorLibTypes.Object;
 							block.insert(n++, Instruction.Create(OpCodes.Newarr, objectType));
 							block.insert(n++, create(OpCodes.Stloc, new Operand(Operand.Type.TempObjArray)));
 
 							for (int j = mparams.Count - 1; j >= 0; j--) {
 								var argType = mparams[j];
-								if (argType.IsValueType)
-									block.insert(n++, Instruction.Create(OpCodes.Box, argType));
+								if (argType.ElementType == ElementType.ValueType)
+									block.insert(n++, Instruction.Create(OpCodes.Box, ((ValueTypeSig)argType).TypeDefOrRef));
 								block.insert(n++, create(OpCodes.Stloc, new Operand(Operand.Type.TempObj)));
 								block.insert(n++, create(OpCodes.Ldloc, new Operand(Operand.Type.TempObjArray)));
 								block.insert(n++, Instruction.Create(OpCodes.Ldc_I4, j));
@@ -308,8 +310,8 @@ namespace AssemblyData.methodsrewriter {
 								block.insert(n++, Instruction.Create(OpCodes.Ldc_I4, j));
 								block.insert(n++, Instruction.Create(OpCodes.Ldelem_Ref));
 								var argType = mparams[j];
-								if (argType.IsValueType)
-									block.insert(n++, Instruction.Create(OpCodes.Unbox_Any, argType));
+								if (argType.ElementType == ElementType.ValueType)
+									block.insert(n++, Instruction.Create(OpCodes.Unbox_Any, ((ValueTypeSig)argType).TypeDefOrRef));
 								else {
 									// Don't cast it to its correct type. This will sometimes cause
 									// an exception in some EF obfuscated assembly since we'll be
@@ -329,13 +331,10 @@ namespace AssemblyData.methodsrewriter {
 			}
 		}
 
-		static List<TypeReference> getParameters(MethodDefinition method) {
-			int count = method.Parameters.Count + (method.HasImplicitThis ? 1 : 0);
-			var list = new List<TypeReference>(count);
-			if (method.HasImplicitThis)
-				list.Add(method.DeclaringType);
-			foreach (var argType in method.Parameters)
-				list.Add(argType.ParameterType);
+		static IList<TypeSig> getParameters(MethodDef method) {
+			var list = new List<TypeSig>(method.Parameters.Length + 1);
+			for (int i = 0; i < method.Parameters.Length; i++)
+				list.Add(method.Parameters[i].Type);
 			return list;
 		}
 
diff --git a/AssemblyData/methodsrewriter/Resolver.cs b/AssemblyData/methodsrewriter/Resolver.cs
index a3c7ab6e..15ca252f 100644
--- a/AssemblyData/methodsrewriter/Resolver.cs
+++ b/AssemblyData/methodsrewriter/Resolver.cs
@@ -20,7 +20,7 @@
 using System;
 using System.Collections.Generic;
 using System.Reflection;
-using Mono.Cecil;
+using dot10.DotNet;
 using de4dot.blocks;
 
 namespace AssemblyData.methodsrewriter {
@@ -33,47 +33,47 @@ namespace AssemblyData.methodsrewriter {
 			if (modules.TryGetValue(module, out info))
 				return info;
 
-			info = new MModule(module, ModuleDefinition.ReadModule(module.FullyQualifiedName));
+			info = new MModule(module, ModuleDefMD.Load(module.FullyQualifiedName));
 			modules[module] = info;
 			return info;
 		}
 
-		static MModule getModule(ModuleDefinition moduleDefinition) {
+		static MModule getModule(ModuleDef moduleDef) {
 			foreach (var mm in modules.Values) {
-				if (mm.moduleDefinition == moduleDefinition)
+				if (mm.moduleDef == moduleDef)
 					return mm;
 			}
 			return null;
 		}
 
-		static MModule getModule(AssemblyNameReference assemblyRef) {
+		static MModule getModule(AssemblyRef asmRef) {
 			foreach (var mm in modules.Values) {
-				var asm = mm.moduleDefinition.Assembly;
-				if (asm != null && asm.Name.FullName == assemblyRef.FullName)
+				var asm = mm.moduleDef.Assembly;
+				if (asm != null && asm.FullName == asmRef.FullName)
 					return mm;
 			}
 			return null;
 		}
 
-		public static MModule getModule(IMetadataScope scope) {
-			if (scope is ModuleDefinition)
-				return getModule((ModuleDefinition)scope);
-			else if (scope is AssemblyNameReference)
-				return getModule((AssemblyNameReference)scope);
+		public static MModule getModule(IScope scope) {
+			if (scope.ScopeType == ScopeType.ModuleDef)
+				return getModule((ModuleDef)scope);
+			else if (scope.ScopeType == ScopeType.AssemblyRef)
+				return getModule((AssemblyRef)scope);
 
 			return null;
 		}
 
-		public static MType getType(TypeReference typeReference) {
-			if (typeReference == null)
+		public static MType getType(ITypeDefOrRef typeRef) {
+			if (typeRef == null)
 				return null;
-			var module = getModule(typeReference.Scope);
+			var module = getModule(typeRef.Scope);
 			if (module != null)
-				return module.getType(typeReference);
+				return module.getType(typeRef);
 			return null;
 		}
 
-		public static MMethod getMethod(MethodReference methodReference) {
+		public static MMethod getMethod(IMethod methodReference) {
 			if (methodReference == null)
 				return null;
 			var module = getModule(methodReference.DeclaringType.Scope);
@@ -82,7 +82,7 @@ namespace AssemblyData.methodsrewriter {
 			return null;
 		}
 
-		public static MField getField(FieldReference fieldReference) {
+		public static MField getField(IField fieldReference) {
 			if (fieldReference == null)
 				return null;
 			var module = getModule(fieldReference.DeclaringType.Scope);
@@ -91,114 +91,124 @@ namespace AssemblyData.methodsrewriter {
 			return null;
 		}
 
-		public static object getRtObject(MemberReference memberReference) {
-			if (memberReference == null)
+		public static object getRtObject(ITokenOperand memberRef) {
+			if (memberRef == null)
 				return null;
-			else if (memberReference is TypeReference)
-				return getRtType((TypeReference)memberReference);
-			else if (memberReference is FieldReference)
-				return getRtField((FieldReference)memberReference);
-			else if (memberReference is MethodReference)
-				return getRtMethod((MethodReference)memberReference);
+			else if (memberRef is ITypeDefOrRef)
+				return getRtType((ITypeDefOrRef)memberRef);
+			else if (memberRef is IField)
+				return getRtField((IField)memberRef);
+			else if (memberRef is IMethod)
+				return getRtMethod((IMethod)memberRef);
 
-			throw new ApplicationException(string.Format("Unknown MemberReference: {0}", memberReference));
+			throw new ApplicationException(string.Format("Unknown MemberReference: {0}", memberRef));
 		}
 
-		public static Type getRtType(TypeReference typeReference) {
-			var mtype = getType(typeReference);
+		public static Type getRtType(ITypeDefOrRef typeRef) {
+			var mtype = getType(typeRef);
 			if (mtype != null)
 				return mtype.type;
 
-			return Resolver.resolve(typeReference);
+			return Resolver.resolve(typeRef);
 		}
 
-		public static FieldInfo getRtField(FieldReference fieldReference) {
-			var mfield = getField(fieldReference);
+		public static FieldInfo getRtField(IField fieldRef) {
+			var mfield = getField(fieldRef);
 			if (mfield != null)
 				return mfield.fieldInfo;
 
-			return Resolver.resolve(fieldReference);
+			return Resolver.resolve(fieldRef);
 		}
 
-		public static MethodBase getRtMethod(MethodReference methodReference) {
-			var mmethod = getMethod(methodReference);
+		public static MethodBase getRtMethod(IMethod methodRef) {
+			var mmethod = getMethod(methodRef);
 			if (mmethod != null)
 				return mmethod.methodBase;
 
-			return Resolver.resolve(methodReference);
+			return Resolver.resolve(methodRef);
 		}
 
-		static AssemblyResolver getAssemblyResolver(TypeReference type) {
-			var asmName = DotNetUtils.getFullAssemblyName(type);
+		static AssemblyResolver getAssemblyResolver(ITypeDefOrRef type) {
+			var asmName = type.DefinitionAssembly.FullName;
 			AssemblyResolver resolver;
 			if (!assemblyResolvers.TryGetValue(asmName, out resolver))
 				assemblyResolvers[asmName] = resolver = new AssemblyResolver(asmName);
 			return resolver;
 		}
 
-		static Type resolve(TypeReference typeReference) {
-			if (typeReference == null)
+		static Type resolve(IType typeRef) {
+			if (typeRef == null)
 				return null;
-			var elemType = typeReference.GetElementType();
+			var elemType = typeRef.GetElementType();
 			var resolver = getAssemblyResolver(elemType);
 			var resolvedType = resolver.resolve(elemType);
 			if (resolvedType != null)
-				return fixType(typeReference, resolvedType);
-			throw new ApplicationException(string.Format("Could not resolve type {0} ({1:X8}) in assembly {2}", typeReference, typeReference.MetadataToken.ToUInt32(), resolver));
+				return fixType(typeRef, resolvedType);
+			throw new ApplicationException(string.Format("Could not resolve type {0} ({1:X8}) in assembly {2}", typeRef, typeRef.MDToken.Raw, resolver));
 		}
 
-		static FieldInfo resolve(FieldReference fieldReference) {
-			if (fieldReference == null)
+		static FieldInfo resolve(IField fieldRef) {
+			if (fieldRef == null)
 				return null;
-			var resolver = getAssemblyResolver(fieldReference.DeclaringType);
-			var fieldInfo = resolver.resolve(fieldReference);
+			var resolver = getAssemblyResolver(fieldRef.DeclaringType);
+			var fieldInfo = resolver.resolve(fieldRef);
 			if (fieldInfo != null)
 				return fieldInfo;
-			throw new ApplicationException(string.Format("Could not resolve field {0} ({1:X8}) in assembly {2}", fieldReference, fieldReference.MetadataToken.ToUInt32(), resolver));
+			throw new ApplicationException(string.Format("Could not resolve field {0} ({1:X8}) in assembly {2}", fieldRef, fieldRef.MDToken.Raw, resolver));
 		}
 
-		static MethodBase resolve(MethodReference methodReference) {
-			if (methodReference == null)
+		static MethodBase resolve(IMethod methodRef) {
+			if (methodRef == null)
 				return null;
-			var resolver = getAssemblyResolver(methodReference.DeclaringType);
-			var methodBase = resolver.resolve(methodReference);
+			var resolver = getAssemblyResolver(methodRef.DeclaringType);
+			var methodBase = resolver.resolve(methodRef);
 			if (methodBase != null)
 				return methodBase;
-			throw new ApplicationException(string.Format("Could not resolve method {0} ({1:X8}) in assembly {2}", methodReference, methodReference.MetadataToken.ToUInt32(), resolver));
+			throw new ApplicationException(string.Format("Could not resolve method {0} ({1:X8}) in assembly {2}", methodRef, methodRef.MDToken.Raw, resolver));
 		}
 
-		static Type fixType(TypeReference typeReference, Type type) {
-			while (typeReference is TypeSpecification) {
-				var ts = (TypeSpecification)typeReference;
+		static Type fixType(ITypeDefOrRef typeRef, Type type) {
+			var ts = typeRef as TypeSpec;
+			if (ts == null)
+				return type;
+			var sig = ts.TypeSig;
+			while (sig != null) {
+				switch (sig.ElementType) {
+				case ElementType.SZArray:
+					type = type.MakeArrayType();
+					break;
 
-				if (typeReference is ArrayType) {
-					var arrayType = (ArrayType)typeReference;
-					if (arrayType.IsVector)
-						type = type.MakeArrayType();
-					else
-						type = type.MakeArrayType(arrayType.Rank);
-				}
-				else if (typeReference is ByReferenceType) {
+				case ElementType.Array:
+					type = type.MakeArrayType((int)((ArraySig)sig).Rank);
+					break;
+
+				case ElementType.ByRef:
 					type = type.MakeByRefType();
-				}
-				else if (typeReference is PointerType) {
+					break;
+
+				case ElementType.Ptr:
 					type = type.MakePointerType();
-				}
-				else if (typeReference is GenericInstanceType) {
-					var git = (GenericInstanceType)typeReference;
+					break;
+
+				case ElementType.GenericInst:
+					var git = (GenericInstSig)sig;
 					var args = new Type[git.GenericArguments.Count];
 					bool isGenericTypeDef = true;
 					for (int i = 0; i < args.Length; i++) {
-						var typeRef = git.GenericArguments[i];
-						if (!(typeRef.GetElementType() is GenericParameter))
+						var arg = git.GenericArguments[i];
+						if (!(arg is GenericSig))
 							isGenericTypeDef = false;
-						args[i] = Resolver.resolve(typeRef);
+						args[i] = Resolver.resolve(arg);
 					}
 					if (!isGenericTypeDef)
 						type = type.MakeGenericType(args);
+					break;
+
+				default:
+					break;
 				}
 
-				typeReference = ts.ElementType;
+				sig = sig.Next;
 			}
 			return type;
 		}
diff --git a/AssemblyData/methodsrewriter/ResolverUtils.cs b/AssemblyData/methodsrewriter/ResolverUtils.cs
index 43659cf5..e820191b 100644
--- a/AssemblyData/methodsrewriter/ResolverUtils.cs
+++ b/AssemblyData/methodsrewriter/ResolverUtils.cs
@@ -20,146 +20,17 @@
 using System;
 using System.Collections.Generic;
 using System.Reflection;
-using Mono.Cecil;
+using dot10.DotNet;
 using de4dot.blocks;
 
 namespace AssemblyData.methodsrewriter {
 	static class ResolverUtils {
-		public static bool compareTypes(Type a, TypeReference b) {
-			if (a == null && b == null)
-				return true;
-			if (a == null || b == null)
-				return false;
-
-			var type = MemberReferenceHelper.getMemberReferenceType(b);
-			switch (type) {
-			case CecilType.ArrayType:
-				return compareArrayTypes(a, (ArrayType)b);
-			case CecilType.ByReferenceType:
-				return compareByReferenceTypes(a, (ByReferenceType)b);
-			case CecilType.FunctionPointerType:
-				return compareFunctionPointerTypes(a, (FunctionPointerType)b);
-			case CecilType.GenericInstanceType:
-				return compareGenericInstanceTypes(a, (GenericInstanceType)b);
-			case CecilType.GenericParameter:
-				return compareGenericParameters(a, (GenericParameter)b);
-			case CecilType.OptionalModifierType:
-				return compareOptionalModifierTypes(a, (OptionalModifierType)b);
-			case CecilType.PinnedType:
-				return comparePinnedTypes(a, (PinnedType)b);
-			case CecilType.PointerType:
-				return comparePointerTypes(a, (PointerType)b);
-			case CecilType.RequiredModifierType:
-				return compareRequiredModifierTypes(a, (RequiredModifierType)b);
-			case CecilType.SentinelType:
-				return compareSentinelTypes(a, (SentinelType)b);
-			case CecilType.TypeDefinition:
-				return compareTypeDefinitions(a, (TypeDefinition)b);
-			case CecilType.TypeReference:
-				return compareTypeReferences(a, (TypeReference)b);
-			default:
-				throw new ApplicationException(string.Format("Unknown cecil type {0}", type));
-			}
+		public static bool compareTypes(Type a, IType b) {
+			return new SigComparer().Equals(a, b);
 		}
 
-		static bool compareArrayTypes(Type a, ArrayType b) {
-			if (!a.IsArray)
-				return false;
-			if (a.GetArrayRank() != b.Rank)
-				return false;
-			return compareTypes(a.GetElementType(), b.ElementType);
-		}
-
-		static bool compareByReferenceTypes(Type a, ByReferenceType b) {
-			if (!a.IsByRef)
-				return false;
-			return compareTypes(a.GetElementType(), b.ElementType);
-		}
-
-		static bool compareFunctionPointerTypes(Type a, FunctionPointerType b) {
-			return compareTypes(a, b.ElementType);
-		}
-
-		static bool compareGenericInstanceTypes(Type a, GenericInstanceType b) {
-			if (!a.IsGenericType)
-				return false;
-
-			var aGpargs = a.GetGenericArguments();
-			var bGpargs = b.GenericArguments;
-			if (aGpargs.Length != bGpargs.Count)
-				return false;
-
-			for (int i = 0; i < aGpargs.Length; i++) {
-				var aArg = aGpargs[i];
-				var bArg = bGpargs[i];
-				if (aArg.IsGenericParameter)
-					continue;
-				if (!compareTypes(aArg, bArg))
-					return false;
-			}
-
-			return compareTypes(a, b.ElementType);
-		}
-
-		static bool compareGenericParameters(Type a, GenericParameter b) {
-			if (!a.IsGenericParameter)
-				return false;
-			if (a.GenericParameterPosition != b.Position)
-				return false;
-			return true;
-		}
-
-		static bool compareOptionalModifierTypes(Type a, OptionalModifierType b) {
-			return compareTypes(a, b.ElementType);
-		}
-
-		static bool comparePinnedTypes(Type a, PinnedType b) {
-			return compareTypes(a, b.ElementType);
-		}
-
-		static bool comparePointerTypes(Type a, PointerType b) {
-			if (!a.IsPointer)
-				return false;
-			return compareTypes(a.GetElementType(), b.ElementType);
-		}
-
-		static bool compareRequiredModifierTypes(Type a, RequiredModifierType b) {
-			return compareTypes(a, b.ElementType);
-		}
-
-		static bool compareSentinelTypes(Type a, SentinelType b) {
-			return compareTypes(a, b.ElementType);
-		}
-
-		static bool compareTypeDefinitions(Type a, TypeDefinition b) {
-			return compareTypeReferences(a, b);
-		}
-
-		static bool compareTypeReferences(Type a, TypeReference b) {
-			if (a.IsGenericParameter || a.IsPointer || a.IsByRef || a.IsArray)
-				return false;
-
-			if (a.Name != b.Name)
-				return false;
-			if ((a.Namespace ?? "") != b.Namespace)
-				return false;
-
-			var asmRef = DotNetUtils.getAssemblyNameReference(b);
-			var asmName = a.Assembly.GetName();
-			if (asmRef == null || asmRef.Name != asmName.Name)
-				return false;
-
-			return compareTypes(a.DeclaringType, b.DeclaringType);
-		}
-
-		public static bool compareFields(FieldInfo a, FieldReference b) {
-			if (a == null && b == null)
-				return true;
-			if (a == null || b == null)
-				return false;
-
-			return a.Name == b.Name &&
-				compareTypes(a.FieldType, b.FieldType);
+		public static bool compareFields(FieldInfo a, IField b) {
+			return new SigComparer().Equals(a, b);
 		}
 
 		public static bool hasThis(MethodBase method) {
@@ -170,52 +41,8 @@ namespace AssemblyData.methodsrewriter {
 			return (method.CallingConvention & CallingConventions.ExplicitThis) != 0;
 		}
 
-		public static bool compareMethods(MethodBase a, MethodReference b) {
-			if (a == null && b == null)
-				return true;
-			if (a == null || b == null)
-				return false;
-
-			if (a.Name != b.Name)
-				return false;
-
-			if (hasThis(a) != b.HasThis || explicitThis(a) != b.ExplicitThis)
-				return false;
-
-			CallingConventions aCallingConvention = a.CallingConvention & (CallingConventions)7;
-			switch (b.CallingConvention) {
-			case MethodCallingConvention.Default:
-				if (aCallingConvention != CallingConventions.Standard && aCallingConvention != CallingConventions.Any)
-					return false;
-				break;
-
-			case MethodCallingConvention.VarArg:
-				if (aCallingConvention != CallingConventions.VarArgs && aCallingConvention != CallingConventions.Any)
-					return false;
-				break;
-
-			default:
-				return false;
-			}
-
-			if (!compareTypes(getReturnType(a), b.MethodReturnType.ReturnType))
-				return false;
-
-			var aParams = a.GetParameters();
-			var bParams = b.Parameters;
-			if (aParams.Length != bParams.Count)
-				return false;
-			for (int i = 0; i < aParams.Length; i++) {
-				if (!compareTypes(aParams[i].ParameterType, bParams[i].ParameterType))
-					return false;
-			}
-
-			var aGparams = getGenericArguments(a);
-			var bGparams = b.GenericParameters;
-			if (aGparams.Length != bGparams.Count)
-				return false;
-
-			return true;
+		public static bool compareMethods(MethodBase a, IMethod b) {
+			return new SigComparer().Equals(a, b);
 		}
 
 		public static Type getReturnType(MethodBase methodBase) {
@@ -300,15 +127,18 @@ namespace AssemblyData.methodsrewriter {
 			return list;
 		}
 
-		public static Type makeInstanceType(Type type, TypeReference typeReference) {
-			var git = typeReference as GenericInstanceType;
+		public static Type makeInstanceType(Type type, ITypeDefOrRef typeRef) {
+			var ts = typeRef as TypeSpec;
+			if (ts == null)
+				return type;
+			var git = ts.TypeSig as GenericInstSig;
 			if (git == null)
 				return type;
 			var types = new Type[git.GenericArguments.Count];
 			bool isTypeDef = true;
 			for (int i = 0; i < git.GenericArguments.Count; i++) {
 				var arg = git.GenericArguments[i];
-				if (!(arg is GenericParameter))
+				if (!(arg is GenericSig))
 					isTypeDef = false;
 				types[i] = Resolver.getRtType(arg);
 			}
diff --git a/AssemblyData/methodsrewriter/TypeInstanceResolver.cs b/AssemblyData/methodsrewriter/TypeInstanceResolver.cs
index bbd2b7c1..89dc2eea 100644
--- a/AssemblyData/methodsrewriter/TypeInstanceResolver.cs
+++ b/AssemblyData/methodsrewriter/TypeInstanceResolver.cs
@@ -20,7 +20,7 @@
 using System;
 using System.Collections.Generic;
 using System.Reflection;
-using Mono.Cecil;
+using dot10.DotNet;
 using de4dot.blocks;
 
 namespace AssemblyData.methodsrewriter {
@@ -29,23 +29,23 @@ namespace AssemblyData.methodsrewriter {
 		Dictionary<string, List<MethodBase>> methods;
 		Dictionary<string, List<FieldInfo>> fields;
 
-		public TypeInstanceResolver(Type type, TypeReference typeReference) {
-			this.type = ResolverUtils.makeInstanceType(type, typeReference);
+		public TypeInstanceResolver(Type type, ITypeDefOrRef typeRef) {
+			this.type = ResolverUtils.makeInstanceType(type, typeRef);
 		}
 
-		public FieldInfo resolve(FieldReference fieldReference) {
+		public FieldInfo resolve(IField fieldRef) {
 			initFields();
 
 			List<FieldInfo> list;
-			if (!fields.TryGetValue(fieldReference.Name, out list))
+			if (!fields.TryGetValue(fieldRef.Name, out list))
 				return null;
 
-			var git = fieldReference.DeclaringType as GenericInstanceType;
+			var git = fieldRef.DeclaringType.ToGenericInstSig();
 			if (git != null)
-				fieldReference = FieldReferenceInstance.make(fieldReference, git);
+				fieldRef = FieldReferenceInstance.make(fieldRef, git);
 
 			foreach (var field in list) {
-				if (ResolverUtils.compareFields(field, fieldReference))
+				if (ResolverUtils.compareFields(field, fieldRef))
 					return field;
 			}
 
@@ -66,19 +66,19 @@ namespace AssemblyData.methodsrewriter {
 			}
 		}
 
-		public MethodBase resolve(MethodReference methodReference) {
+		public MethodBase resolve(IMethod methodRef) {
 			initMethods();
 
 			List<MethodBase> list;
-			if (!methods.TryGetValue(methodReference.Name, out list))
+			if (!methods.TryGetValue(methodRef.Name, out list))
 				return null;
 
-			var git = methodReference.DeclaringType as GenericInstanceType;
-			var gim = methodReference as GenericInstanceMethod;
-			methodReference = MethodReferenceInstance.make(methodReference, git, gim);
+			var git = methodRef.DeclaringType.ToGenericInstSig();
+			var gim = methodRef as MethodSpec;
+			methodRef = MethodReferenceInstance.make(methodRef, git, gim);
 
 			foreach (var method in list) {
-				if (ResolverUtils.compareMethods(method, methodReference))
+				if (ResolverUtils.compareMethods(method, methodRef))
 					return method;
 			}
 
diff --git a/AssemblyData/methodsrewriter/TypeResolver.cs b/AssemblyData/methodsrewriter/TypeResolver.cs
index 3a35dc4f..59e23597 100644
--- a/AssemblyData/methodsrewriter/TypeResolver.cs
+++ b/AssemblyData/methodsrewriter/TypeResolver.cs
@@ -20,32 +20,31 @@
 using System;
 using System.Collections.Generic;
 using System.Reflection;
-using Mono.Cecil;
+using dot10.DotNet;
 using de4dot.blocks;
 
 namespace AssemblyData.methodsrewriter {
 	class TypeResolver {
 		public Type type;
-		Dictionary<TypeReferenceKey, TypeInstanceResolver> typeRefToInstance = new Dictionary<TypeReferenceKey, TypeInstanceResolver>();
+		Dictionary<ITypeDefOrRef, TypeInstanceResolver> typeRefToInstance = new Dictionary<ITypeDefOrRef, TypeInstanceResolver>(TypeEqualityComparer.Instance);
 
 		public TypeResolver(Type type) {
 			this.type = type;
 		}
 
-		TypeInstanceResolver getTypeInstance(TypeReference typeReference) {
-			var key = new TypeReferenceKey(typeReference);
+		TypeInstanceResolver getTypeInstance(ITypeDefOrRef typeRef) {
 			TypeInstanceResolver instance;
-			if (!typeRefToInstance.TryGetValue(key, out instance))
-				typeRefToInstance[key] = instance = new TypeInstanceResolver(type, typeReference);
+			if (!typeRefToInstance.TryGetValue(typeRef, out instance))
+				typeRefToInstance[typeRef] = instance = new TypeInstanceResolver(type, typeRef);
 			return instance;
 		}
 
-		public FieldInfo resolve(FieldReference fieldReference) {
-			return getTypeInstance(fieldReference.DeclaringType).resolve(fieldReference);
+		public FieldInfo resolve(IField fieldRef) {
+			return getTypeInstance(fieldRef.DeclaringType).resolve(fieldRef);
 		}
 
-		public MethodBase resolve(MethodReference methodReference) {
-			return getTypeInstance(methodReference.DeclaringType).resolve(methodReference);
+		public MethodBase resolve(IMethod methodRef) {
+			return getTypeInstance(methodRef.DeclaringType).resolve(methodRef);
 		}
 	}
 }
diff --git a/dot10 b/dot10
index d6f36e4d..5df20e54 160000
--- a/dot10
+++ b/dot10
@@ -1 +1 @@
-Subproject commit d6f36e4d8d75354483f57a4808dd0e2fe75c94aa
+Subproject commit 5df20e544a7b220b3155dfc00c23c72362915806