Hi Caroline.

>What about the problem that each app for each client has a different colour scheme, how do you cope with that?

I've never run into that. However, property-based differences are easily handled in a variety of ways, including Container.SetAll(). Behavior differences are a different matter, but could also be handled with hook methods in the base classes. In VFP 8, this is even easier with event binding.

IOW, I still can't see a reason to have client-specific base classes.

Doug