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From: Georg <dosusb AT googlemail DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: System()
Date: Fri, 11 May 2012 05:07:41 -0700 (PDT)
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On 11 Mai, 08:39, Jason Hood <jad DOT  DOT  DOT  AT yahoo DOT com DOT au> wrote:
> On 9/05/2012 16:23, Georg wrote:
>
> > As Rugxulo suggests in this case I probably better make an assembler
> > TSR which loads the filemanager and runs the selected program after
> > the filemanager has terminated. When that has terminated the
> > filemanager is loaded again. I just would like to save this load/
> > unload since the filemanager will probably be about 1.5 MB after UPX.
>
> No need for a TSR, use batch files.  Start your manager via a batch
> file.  The manager creates another batch file to run the selected
> program, then exits.  The initial batch file detects the created
> batch file exists, and runs it, then restarts the manager; if the
> batch file doesn't exist, the manager itself has exited.  That leaves
> *all* your memory available, with no compatibility issues.
>
> --
> Jason.

Thank you Jason! I assume I could also write the line to execute into
an environment variable [setenv("doit", "notepad", 1);] and call that
from the batch file.

In a batch file:
set doit="notepad"
call %doit%
echo returned from notepad

The set command would be done in the C program with setenv().

Georg