Recently we installed Service Pack3. No problems.
However since then, whenever we install our application on client's PCs, about 1 in 3 will produce an error when invoking the application.

VFP500.DLL is missing or corrupted

OK, we then look for vfp500.dll and it is there. Just in case it got corrupted, I copy the vfp500.dll from a system where our application is running fine onto the system where Win95 complains about the DLL. After this copy I still get the same error message. Clearly something else is missing, but what??

The PCs were our application runs fine have a recent version of Win95. The ones that have problem seem to have the original Win95, with subsequent install of updates. (Although this is often difficult to confirm as our clients don't know for sure)

Prior to us installing VFP service pack3 we did not appear to have this problem.

Here is a list of the Win System files that are installed with our app:-

comcat.dll Foxpro.int Hlp95en.dll mfc40.dll mfc41.dll
msvcrt20.dll msvcrt21.dll oleaut32.dll olepro32.dll stdole.tlb
vfp500.dll vfp5enu.dll vfp5ole.dll

I suspect our installation is either missing a Windows System file or not detecting and updating an old Windows System file on the client's computer. Any ideas/suggestion as to what is happening?

regards,

Alain