>>>I'm running NT Workstation 4 with SP5 and VB6 with SP3. Uninstalling and reinstalling VB doesn't help.

I have the exact same configuration - so the error is not this side.

>>>I'm getting a "System Error &H80004002(-2147467262). No such interface supported" error when trying to access the components. Nothing shows up and when I try to manually add a reference to a component the error appears again and the component is not added.

I got it! See http://support.microsoft.com/support/kb/articles/Q183/3/70.ASP?LNG=ENG&SA=ALLKB for all the details to correct your problem. This error is caused by an incorrect version of comcat.dll.