Get GUID from vb6 dll classes

I have a Challenge here :)... I have a vb6 dll 开发者_Go百科with say 4 classes. I need from my .net winform app to be able to get the GUID from all these classes (4 guids).

Thanks.

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Assuming the dll is registered the CLSID GUIDs are listed in HKCR under a ProgID

HKEY_CLASSES_ROOT
  TheServerName.PublicObjectName
     CLSID
       [default] = {...}