Which DLL contains this COM object?

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In a legacy VB6 application that has not yet been ported, we need to be able to check the file version of the DLL containing and implementing a certain business related COM object.

I don't really want to crawl through the registry to find it and since the COM object can be instantiated, I had hoped there would be a few API's that could at least give me the full path name to the DLL.

I had thought this would be simple enough but it is turning out to be much harder then anticipated.

Has anyone done this kind of thing before?

Posted 10-Jun-10 5:12am

JeffOstrosser

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Sauro Viti · Accepted Answer · 2010-06-10T10:28:00

You can use the VC++ debugger: just run an application that use the COM object through the debugger, when the COM object is instantiated look at the debugger output window and on it search for the loaded modules. Each loaded module is a dll that your executable is using and one of them is the one that implements the COM object.