>>>It seems to be very specific about version of every VFP exe and dll I have. The link on Sergey's site doesn't work anymore (msdn archive is retired), and the one I found at https://foxypreviewer.codeplex.com/downloads/get/847504# is incomplete, i.e. my VFP now says proper version, but Chen's installer says
>>>File Version Error: "Q:\SOPSTVER\DB\VFP9\VFP9ENU.DLL"!
>>>
>>>So... where do I get the proper SP2 with complete 9.0.0.7423?
>>
>>SP2: https://www.microsoft.com/en-us/download/details.aspx?id=13959
>>Latest Hotfix for SP2: https://vfpx.codeplex.com/wikipage?title=VFP%209%20SP2%20Hotfix%203%20Download%20(latest%20one)
>>
>>That will give you the 7423 you're looking for.
>
>Did that yesterday, and did it again now, still the same. These seem to replace vfp9r and vfp9t.dll, but not vfp9enu.dll, so Chen's installer still complains. And the version of vfp9enu.dll I have is 5721. If I replace it with a slightly newer one I found (few weeks later in 2007), that one is somewhat shorter and the installer then complains about its size.

Maybe http://tinyurl.com/kckpec5 ?

IIRC Mel Cummings put together that installer, which I think installs SP2 and all subsequent hot fixes so that should get you to 7423.