>>> We have replaced the VFP500.DLL with a copy from one of the working
>>> machines, but are still encountering the error.
>>
>>First of all, copying or moving the DLL from one machine to another will
>>not work. It has to actually be installed.
>
>I am not trying to be a smart-ass or contradict you, merely trying to
>contribute to the discussion. I have *NOT* found the above to be true. I
>don't use install disks or the setup wizard - I just ZIP up the 3 DLLs and
>unzip them along with my application files on the client's machine. This
>is just my experience.
>
>Don Smith

Interesting. I'm not sure why you're having success that way but it's not supposed to. I've tried zip/unzip like you and even tried copying the files from machine to machine in a peer to peer setup. In both cases I got a Invalid or missing VFP500.DLL error message.