We have an inhouse program written in foxpro 2.5 for DOS. It has been working like a charm for 6 or 7 years. We now have 1 Win2000 computer on our Windows Network. That machine gets erratic error 15 or memo file is missing or invalid errors. The same procedure run on another non Win2000 does not error out. Does anyone out there have any idea how to keep this from happening short of 1. Rewriting the program or 2. Taking Win2000 off the machine. Thanks.