>VFX is Visual Extend. A RAD tool I used to build the apps. It provided a set of libraries of very functional VFP base classes.
>
>These classes are quite involved and sometimes complex. At this point, the clients think that the time needed would be better spent re-writing the applications. But they are not ready to do that quite yet. In the mean time I would like to upgrade VFP to the highest compatible version and continue to enhance the apps until they are ready to rewrite (maybe in a couple of years).

I see. Let's hope that other users of this framework can offer suggestions.