>>Thanks for the infornation. I assume the 5/7/99 Vfp6r.dll in the windows\system is the correct dll for VFP SP3. But how could i verify that? Because now I have found one of my client sites with a 5/15/99 Vfp6r.dll.
>>

>I don't know how to tell from looking at the dates, but from Explorer you can right-click and select Properties, then look at Version. You'll see the build number. The higher the number, the newer the version.
>

I went to the microsoft DLL help and when you type in the dll file name it gives you all the version numbers and what could have installed it. Seems my Vfp6r.dll, Vfp6renu.dll, and Vfpodbc.dll in windows\system came from SP3 and the Vfp6r.dll, Vfp6renu.dll, and Vfpodbc.dll came from the vanilla VFP6.