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.

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

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