As expected. Actually I'm surprised that they gave you an answer.

>Microsoft has replied. Their response is disappointing as it does nothing to settle the matter. It does, however, strongly indicate that Microsoft as a company doesn't care about software with such a limited audience as VFP Advanced's audience. It seems to be a non-concern to them, easily dismissed at a low-level.
>
>

* We appreciate you reaching out to Microsoft about this application.
>* However, we cannot comment on legality because it was created by
>* a separate entity that is unaffiliated with Microsoft. I recommend
>* continuing to proceed with caution and perhaps request that the
>* company provide you with proof of legal ownership as well as
>* legality of doing business with US customers.
>* 
>* Here are a few resources that may be helpful:
>* https://www.microsoft.com/en-us/howtotell
>* https://www.microsoft.com/en-us/trustcenter/security/cybercrime

>
>Proof of ownership is a non-issue. Everyone knows Chen wrote the software.
>
>Proof of legality of doing business with US customers ... that's what remains un-addressed, though it seems very clear Microsoft will not care at all if people use it.