Thanks Dave-
I figured that out and put the file in Windows\System32. The missing file error disappeared but now the program just crashes with "The program has encountered an error and needs to close". The machine that runs OK has 2GB ram and the one that crashes is only a 1GB Pentium III box. But I doubt that has anything to do with this small program, I suspect a problem with the XP installation on the Pentium machine..
I'm considering an "upgrade in place" system repair with a XP-slipstreamed-SP3 boot disk.
-Lee