Barbara:
I've already written may files into this folder. The PMTCOM.bat file is in the folder, and if I double-click it, the process works correctly.

This VFP app is called from a DOS Clipper 5.0 program. I had 110 files and 80 buffers on the NT. I changed it to 150 files and some of my environment variables went away, so I know this increase had some impact, but sitll "disk full". I'll try increasing it some more. Do you know how many file handles VFP eat up with all of it's attendant DLL's? I ran this process successfully on NT with a WinBatch executable, but that is very unreliable on Win98. I woke up last night with the thought that it might be a file handles problem. I just ran it from the desktop, without being called by the Clipper program, and got the same results.