There is this method IComponent2.GetPathName() which gives the path of the component file.

It works well for unsuppressed components. But I have trouble using it (successfully) for suppressed components, because it will only return the path that was saved in the document, not the ACTUAL path:

Assume I have an assembly A with path C:\Users\me\example\A.SLDASM which has a component B with path C:\Users\me\example\B.SLDPRT. I suppress B inside A. Then I give the folder "example" to a colleague who puts it to the following location: D:\foo\. So he has A with ACTUAL path D:\foo\example\A.SLDASM and B with ACTUAL path D:\foo\example\B.SLDPRT. But if he opens A in SolidWorks and calls IComponent2.GetPathName() on component B, he will still get C:\Users\me\example\B.SLDPRT. But I need him to get D:\foo\example\B.SLDPRT instead. How do I do this via API?

The API help for IComponent2.GetPathName() states