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Q: When I copy my DJGPP application program to another PC where no
DJGPP is installed, I can't run it. It complains that it cannot find DPMI
(??). Do I really need all of your multi-megabyte installation to run
A: No, you don't. You can either (a) bring the
free DPMI host to the target machine and put it in the same directory as
your compiled program or somewhere along the
PATH, or (b) make
sure there's another DPMI host (such as QDPMI, 386Max, Windows, etc.)
installed on the target machine.
If your program could be run on a machine which lacks a floating-point processor, you should also distribute an emulator, or link your program with an emulator library. See floating-point emulation issues.
PMODE/DJ is an alternative DPMI host that can be bound with your
program, so that you have a single self-sufficient executable, but
PMODE/DJ doesn't support virtual memory, so such
programs will only run on machines with enough free physical RAM.