>>Use Depends.EXE to see required DLL and version. (http://support.microsoft.com/support/kb/articles/Q178/4/89.ASP)
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>Ok, but since I used the MS distribution wizard, shouldn't all the necessary controls and dll's be transfered? (Or maybe I shouldn't trust this)

Did you have any messages during the PDW execution (like "Missing Dependencies"). If you got these, DLLs are surely missing.

Also, if you use LateBinding (dim as Object + CreateObject/GetObject), these components are not detected by PDW.