>>I am baffled. I do have a VFP7 app that is installed on a machine that has no developer version of VFP, no source code, just the APP and the VFP 7 runtime. This app has PRG based classes that use the DEFINE CLASS ... OF ClassName with absolutely no extensions. The app works. Now, I also have no VCX classes with a name the same as any of the PRG classes. There are no error messages in my ErrorLog table either. This is a Word automation app, and those classes are used to create the Word docs. This technique is working great. I do not know what else to say.
>
>Could be that the prg containing the class definition is cached in memory by something else being loaded from it in another place in your app...

To make matters worse, I can not duplicate this success by creating similar classes in a new folder under a new project. Nor can I make the one that works, fail. Still plugging...