It's not the file, but the program that is at fault. AFAIK DPMI will not run
on anything below a 386, and definitely will not run on a 640kb machine.
DPMI is a memory manager used to control access to memory past the 1MB
barrier on a PC, so first you need that memory.
I suspect you'll have to either upgrade the machine or forget using c++.
*hugs*
Moz