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echo: os2prog
to: Lewin Edwards
from: Mike Bilow
date: 1995-11-01 20:25:54
subject: Native OS/2 from Native WIN?

Lewin Edwards wrote in a message to George Simon:

 LE> Let's not forget that the Windows equivalent of OS/2 text
 LE> mode is DOS. You can write a multithreaded 32-bit text-mode
 LE> program under OS/2. You can't under DOS unless you write
 LE> your own OS addon.

It's actually not hard to write a "console" application under
Windows in one form or another.  Many of the NT utilities are actually done
this way, which makes sense since NT supports much of text-mode OS/2 1.x
programming.  Such programs will only work in the Windows-provided
"DOS" sessions, but not in real DOS, since they call into the
Windows API.

 LE> I'm speaking here from the POV of someone who has seen a few
 LE> simple Windows programs, said to employer "Let's port to
 LE> OS/2" and then bitterly regretted it. 

Things should get easier.  It will obviously be far easier to port 32-bit
Windows apps to 32-bit OS/2 than it was to port 16-bit Windows apps to
anything.  The Developer API Extensions (DAPIE, formerly DAX) should make
this relatively straightforward by providing the Win32 API under OS/2 at
source level.
 
-- Mike


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