GetTypeInfoOfGuid returns not found on Automation class

I cannot get to find out why the attached code is not working. MyObject is a MFC Automation Class (Visual Studio 2008). It contains just one function that works just fine on my scripting host. So the ODL file looks fine.
But I just cannot find out how to provide the class info so that I can use GetTypeInfoOfGuid.

Thank You for your help!

LCID lc=GetUserDefaultLCID();
MyObject m_Obj;
CLSID clsid;
HRESULT hr=m_Obj.GetTypeInfoOfGuid(lc, clsid, &ppti);

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What is the HRESULT code that is returned?
hlienertAuthor Commented:
It returns -2147319765 / 0x8002802b
Something like "Element not found"
Does you automation object implement ITypeInfo?
hlienertAuthor Commented:
To be honest, I'm not quite sure how to verify that....
hlienertAuthor Commented:
I found out my problem:
#ifdef _DEBUG
1 TYPELIB "Debug\\AppName.tlb"
1 TYPELIB "Release\\AppName.tlb"
had to be included in my ressource file.
But thank you for the tips!

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