diff --git a/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Control/Eval.cs b/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Control/Eval.cs
index 128ed722aa..0c3e15d465 100644
--- a/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Control/Eval.cs
+++ b/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Control/Eval.cs
@@ -206,9 +206,7 @@ namespace Debugger
 				throw new GetValueException("Invalid parameter count");
 			}
 			if (thisValue != null) {
-				if (!(thisValue.IsObject)) {
-					throw new GetValueException("Can not evaluate on a value which is not an object");
-				}
+				// if (!(thisValue.IsObject)) // eg Can evaluate on array
 				if (!method.DeclaringType.IsInstanceOfType(thisValue)) {
 					throw new GetValueException(
 						"Can not evaluate because the object is not of proper type.  " + 
diff --git a/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Metadata/DebugType.cs b/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Metadata/DebugType.cs
index 815b0cd799..fbf62675a2 100644
--- a/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Metadata/DebugType.cs
+++ b/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Metadata/DebugType.cs
@@ -217,6 +217,14 @@ namespace Debugger.MetaData
 		/// </summary>
 		public DebugType BaseType {
 			get {
+				// corType.Base does not work for arrays
+				if (this.IsArray) {
+					return DebugType.GetType(this.Process, "System.Array");
+				}
+				// corType.Base does not work for primitive types
+				if (this.IsPrimitive) {
+					return DebugType.GetType(this.Process, "System.Object");
+				}
 				ICorDebugType baseType = corType.Base;
 				if (baseType != null) {
 					return Create(process, baseType);
diff --git a/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Values/Value.Object.cs b/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Values/Value.Object.cs
index 004d7f1838..3cf2aea35e 100644
--- a/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Values/Value.Object.cs
+++ b/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Values/Value.Object.cs
@@ -43,9 +43,7 @@ namespace Debugger
 				if (objectInstance.IsNull) {
 					throw new GetValueException("Null reference");
 				}
-				if (!objectInstance.IsObject) {
-					throw new GetValueException("Target object is not class or value type");
-				}
+				//if (!objectInstance.IsObject) // eg Array.Length can be called
 				if (!memberInfo.DeclaringType.IsInstanceOfType(objectInstance)) {
 					throw new GetValueException("Object is not of type " + memberInfo.DeclaringType.FullName);
 				}
@@ -238,9 +236,8 @@ namespace Debugger
 		/// <summary> Invoke the ToString() method </summary>
 		public string InvokeToString()
 		{
-			if (!IsObject) {
-				throw new DebuggerException("ToString can be only invoked on object");
-			}
+			if (IsPrimitive) return AsString;
+			// if (!IsObject) // Can invoke on primitives
 			return Eval.InvokeMethod(Process, typeof(object), "ToString", this, new Value[] {}).AsString;
 		}
 		
diff --git a/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/ArrayValue.cs b/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/ArrayValue.cs
index dfe9b34ebe..db9fdb3b52 100644
--- a/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/ArrayValue.cs
+++ b/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/ArrayValue.cs
@@ -38,6 +38,7 @@ namespace Debugger.Tests {
 			ObjectDump("array", array);
 			ObjectDump("array elements", array.GetArrayElements());
 			ObjectDump("type", array.Type);
+			ObjectDump("array.Length", array.GetMemberValue("Length"));
 			
 			EndTest();
 		}
@@ -146,7 +147,31 @@ namespace Debugger.Tests {
       </Item>
     </array_elements>
     <type Type="DebugType" ToString="System.Int32[]">
-      <BaseType exception="Value does not fall within the expected range." />
+      <BaseType Type="DebugType" ToString="System.Array">
+        <BaseType Type="DebugType" ToString="System.Object">
+          <BaseType>null</BaseType>
+          <FullName>System.Object</FullName>
+          <HasElementType>False</HasElementType>
+          <IsArray>False</IsArray>
+          <IsClass>True</IsClass>
+          <IsGenericType>False</IsGenericType>
+          <IsInteger>False</IsInteger>
+          <IsPrimitive>False</IsPrimitive>
+          <IsValueType>False</IsValueType>
+          <ManagedType>null</ManagedType>
+          <Module>mscorlib.dll</Module>
+        </BaseType>
+        <FullName>System.Array</FullName>
+        <HasElementType>False</HasElementType>
+        <IsArray>False</IsArray>
+        <IsClass>True</IsClass>
+        <IsGenericType>False</IsGenericType>
+        <IsInteger>False</IsInteger>
+        <IsPrimitive>False</IsPrimitive>
+        <IsValueType>False</IsValueType>
+        <ManagedType>null</ManagedType>
+        <Module>mscorlib.dll</Module>
+      </BaseType>
       <FullName>System.Int32[]</FullName>
       <HasElementType>True</HasElementType>
       <IsArray>True</IsArray>
@@ -158,6 +183,21 @@ namespace Debugger.Tests {
       <ManagedType>System.Array</ManagedType>
       <Module exception="The type is not a class or value type." />
     </type>
+    <array.Length Type="Value" ToString="array.Length = 5">
+      <ArrayDimensions exception="Value is not an array" />
+      <ArrayLenght exception="Value is not an array" />
+      <ArrayRank exception="Value is not an array" />
+      <AsString>5</AsString>
+      <Expression>array.Length</Expression>
+      <HasExpired>False</HasExpired>
+      <IsArray>False</IsArray>
+      <IsInteger>True</IsInteger>
+      <IsNull>False</IsNull>
+      <IsObject>False</IsObject>
+      <IsPrimitive>True</IsPrimitive>
+      <PrimitiveValue>5</PrimitiveValue>
+      <Type>System.Int32</Type>
+    </array.Length>
     <ProcessExited />
   </Test>
 </DebuggerTests>
diff --git a/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/FunctionArgumentVariables.cs b/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/FunctionArgumentVariables.cs
index c257e2cbe1..e43329f2ce 100644
--- a/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/FunctionArgumentVariables.cs
+++ b/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/FunctionArgumentVariables.cs
@@ -124,11 +124,11 @@ namespace Debugger.Tests {
         <PrimitiveValue>A</PrimitiveValue>
         <Type>System.String</Type>
       </Item>
-      <Item Type="Value" ToString="s_null = &lt;null&gt;">
+      <Item Type="Value" ToString="s_null = null">
         <ArrayDimensions exception="Value is not an array" />
         <ArrayLenght exception="Value is not an array" />
         <ArrayRank exception="Value is not an array" />
-        <AsString>&lt;null&gt;</AsString>
+        <AsString>null</AsString>
         <Expression>s_null</Expression>
         <HasExpired>False</HasExpired>
         <IsArray>False</IsArray>
diff --git a/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/FunctionLocalVariables.cs b/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/FunctionLocalVariables.cs
index fc258864f7..f27b60229f 100644
--- a/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/FunctionLocalVariables.cs
+++ b/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/FunctionLocalVariables.cs
@@ -94,11 +94,11 @@ namespace Debugger.Tests {
         <PrimitiveValue exception="Value is not a primitive type" />
         <Type>System.String[]</Type>
       </Item>
-      <Item Type="Value" ToString="n = &lt;null&gt;">
+      <Item Type="Value" ToString="n = null">
         <ArrayDimensions exception="Value is not an array" />
         <ArrayLenght exception="Value is not an array" />
         <ArrayRank exception="Value is not an array" />
-        <AsString>&lt;null&gt;</AsString>
+        <AsString>null</AsString>
         <Expression>n</Expression>
         <HasExpired>False</HasExpired>
         <IsArray>False</IsArray>
diff --git a/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/PrimitiveValue.cs b/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/PrimitiveValue.cs
index 6570109f68..87ac8b5963 100644
--- a/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/PrimitiveValue.cs
+++ b/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/PrimitiveValue.cs
@@ -36,6 +36,10 @@ namespace Debugger.Tests {
 			StartTest("PrimitiveValue.cs");
 			
 			ObjectDump("locals", process.SelectedStackFrame.GetLocalVariableValues());
+			// Test System.Object access
+			ObjectDump("b as string", process.SelectedStackFrame.GetLocalVariableValue("b").InvokeToString());
+			ObjectDump("i as string", process.SelectedStackFrame.GetLocalVariableValue("i").InvokeToString());
+			ObjectDump("s as string", process.SelectedStackFrame.GetLocalVariableValue("s").InvokeToString());
 			
 			EndTest();
 		}
@@ -66,7 +70,19 @@ namespace Debugger.Tests {
         <IsPrimitive>True</IsPrimitive>
         <PrimitiveValue>True</PrimitiveValue>
         <Type Type="DebugType" ToString="System.Boolean">
-          <BaseType exception="Value does not fall within the expected range." />
+          <BaseType Type="DebugType" ToString="System.Object">
+            <BaseType>null</BaseType>
+            <FullName>System.Object</FullName>
+            <HasElementType>False</HasElementType>
+            <IsArray>False</IsArray>
+            <IsClass>True</IsClass>
+            <IsGenericType>False</IsGenericType>
+            <IsInteger>False</IsInteger>
+            <IsPrimitive>False</IsPrimitive>
+            <IsValueType>False</IsValueType>
+            <ManagedType>null</ManagedType>
+            <Module>mscorlib.dll</Module>
+          </BaseType>
           <FullName>System.Boolean</FullName>
           <HasElementType>False</HasElementType>
           <IsArray>False</IsArray>
@@ -93,7 +109,19 @@ namespace Debugger.Tests {
         <IsPrimitive>True</IsPrimitive>
         <PrimitiveValue>5</PrimitiveValue>
         <Type Type="DebugType" ToString="System.Int32">
-          <BaseType exception="Value does not fall within the expected range." />
+          <BaseType Type="DebugType" ToString="System.Object">
+            <BaseType>null</BaseType>
+            <FullName>System.Object</FullName>
+            <HasElementType>False</HasElementType>
+            <IsArray>False</IsArray>
+            <IsClass>True</IsClass>
+            <IsGenericType>False</IsGenericType>
+            <IsInteger>False</IsInteger>
+            <IsPrimitive>False</IsPrimitive>
+            <IsValueType>False</IsValueType>
+            <ManagedType>null</ManagedType>
+            <Module>mscorlib.dll</Module>
+          </BaseType>
           <FullName>System.Int32</FullName>
           <HasElementType>False</HasElementType>
           <IsArray>False</IsArray>
@@ -120,7 +148,19 @@ namespace Debugger.Tests {
         <IsPrimitive>True</IsPrimitive>
         <PrimitiveValue>five</PrimitiveValue>
         <Type Type="DebugType" ToString="System.String">
-          <BaseType exception="Value does not fall within the expected range." />
+          <BaseType Type="DebugType" ToString="System.Object">
+            <BaseType>null</BaseType>
+            <FullName>System.Object</FullName>
+            <HasElementType>False</HasElementType>
+            <IsArray>False</IsArray>
+            <IsClass>True</IsClass>
+            <IsGenericType>False</IsGenericType>
+            <IsInteger>False</IsInteger>
+            <IsPrimitive>False</IsPrimitive>
+            <IsValueType>False</IsValueType>
+            <ManagedType>null</ManagedType>
+            <Module>mscorlib.dll</Module>
+          </BaseType>
           <FullName>System.String</FullName>
           <HasElementType>False</HasElementType>
           <IsArray>False</IsArray>
@@ -147,7 +187,19 @@ namespace Debugger.Tests {
         <IsPrimitive>True</IsPrimitive>
         <PrimitiveValue>5.5</PrimitiveValue>
         <Type Type="DebugType" ToString="System.Double">
-          <BaseType exception="Value does not fall within the expected range." />
+          <BaseType Type="DebugType" ToString="System.Object">
+            <BaseType>null</BaseType>
+            <FullName>System.Object</FullName>
+            <HasElementType>False</HasElementType>
+            <IsArray>False</IsArray>
+            <IsClass>True</IsClass>
+            <IsGenericType>False</IsGenericType>
+            <IsInteger>False</IsInteger>
+            <IsPrimitive>False</IsPrimitive>
+            <IsValueType>False</IsValueType>
+            <ManagedType>null</ManagedType>
+            <Module>mscorlib.dll</Module>
+          </BaseType>
           <FullName>System.Double</FullName>
           <HasElementType>False</HasElementType>
           <IsArray>False</IsArray>
@@ -161,6 +213,9 @@ namespace Debugger.Tests {
         </Type>
       </Item>
     </locals>
+    <b_as_string>True</b_as_string>
+    <i_as_string>5</i_as_string>
+    <s_as_string>five</s_as_string>
     <ProcessExited />
   </Test>
 </DebuggerTests>
diff --git a/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/StackOverflow.cs b/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/StackOverflow.cs
index d8f40fc5d5..52ad824b5c 100644
--- a/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/StackOverflow.cs
+++ b/src/AddIns/Misc/Debugger/Debugger.Tests/Project/Src/TestPrograms/StackOverflow.cs
@@ -50,7 +50,7 @@ namespace Debugger.Tests {
     <ModuleLoaded symbols="False">mscorlib.dll</ModuleLoaded>
     <ModuleLoaded symbols="True">StackOverflow.exe</ModuleLoaded>
     <DebuggingPaused>Break</DebuggingPaused>
-    <ExceptionThrown>&lt;null&gt;</ExceptionThrown>
+    <ExceptionThrown>null</ExceptionThrown>
     <DebuggingPaused>Exception</DebuggingPaused>
     <LastStackFrame Type="StackFrame" ToString="Debugger.Tests.TestPrograms.StackOverflow.Fun">
       <ArgumentCount>1</ArgumentCount>