>Error 1103 - Invalid Seek Offset - is usually caused by corrupted index files. However, I just ran into a completely different cause: trying to FOPEN() a large file (43GB). FWIW it was on Vista32.
>
>I don't know how large a file FOPEN() can successfully open, or whether running on a 64-bit OS makes any difference.

VFP can't open any file, no matter what type, that is bigger than 2GB.