Al,

>>claims one or more of Chen's products violate the Microsoft VFP9 EULA and hence are not legal for use in the US (and perhaps other jurisdictions).

After identical sensation on Foxite some years back, legal advice confirmed that in most jurisdictions including the US, you're allowed to fix bugs or improve compatibility if the licensor is no longer interested in selling or supporting your licensed product.

There's also precedent- e.g. Refox that the same argument would call illegal, since it uses reverse-engineered VFP IL and runtime commands like strtofile... yet was sold with MS's full knowledge for many years.

With almost 60 bugs now fixed including several show-stoppers, my view is that Chen is doing the VFP community a huge service with his free VFPA add-on for VFP licensees and ought to be thanked, not accused.