How to Create an Instance of the C# Expression Evaluator

Question

I tried

 

Guid CSharpEEGuid = new Guid("{60F5556F-7EBC-4992-8E83-E9B49187FDE3}");

 

Type CSharpEE = Type.GetTypeFromCLSID(CSharpEEGuid);

 

object temp = Activator.CreateInstance(CSharpEE);

 

var temp2 = temp as IDebugExpressionEvaluator2;

But the GUID does not seem to be a registered COM GUID in the registry.

Answer 1

Hello,

It seems that the debugger Expression Evaluator is not registered as COM visible. Why you want to create such an instance?

You might have a look at the EESample in Visual Studio SDK.
http://code.msdn.microsoft.com/DebuggerExpEvalDD

Thanks,
Rong-Chun Zhang

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Answer 2

Expression Evaluators are registered under the VS hive's AD7Metrics registry key. You've correctly identified the CLSID, but as Zhang pointed out it isn't COM creatable. You would need to use something like ILocalRegistryService.CreateInstance to create an instance of the EE.

Even so, this isn't a supported scenario. The EE is registered so that the VS debug package can create it when needed, and it's tightly intertwined with other services like the C# project system and the debugger's debug engine.

Sincerely,

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Ed Dore