This is correct. As long as you don't get VFP6 specific (Access, Assign, Addobject, Newobject, etc...) in the classlib, then the COMPILE CLASSLIB command will allow you to switch the VCX back and forth.


>I don't have VFP 6 at hand right now to test it, but I think that the VCX file is the same both in VFP 5 and 6. Otherwise, you can allways do a COMPILE CLASSLIB in VFP 5 to bring a VCX created in VFP 6 in VFP 5 format.
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>>Thanks for the reply. To answer your question, I thought it would be better to create a .prg as I need to support both VFP5 and VFP6. I was not sure if I could create a .vcx in VFP5 and have it compatiable with VFP6 or vice versa. Do you know if this is a problem with creating a .vcx class?