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From: PaulCsouls <paulcsouls AT worldnet DOT att DOT net>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Parallel Port in Win 2000
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Date: Wed, 11 May 2005 20:20:49 GMT
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On Wed, 11 May 2005 11:37:58 +0300, "Tõnu Aas" <tonu att ids punkt ee>
wrote:

>> I've written some  programs that use the Parallel Port and work well
>> in Win 98, but do not work in Win 2000. I've read in the FAQ about
>> some  glitches with the serial port in NT. Do these apply in Win 2000?
>> Can I access LPT1 from a DOS box in Win2000?
>
>    Yes you can. NTVDM emulates LPT port for DOS programs.
>As it does in Win98 (its not named ntvdm under 98),
>but NT family does it a bit strange: all access to LPT are done
>after VM destrcution. So all printing will be done after program exit.
>
>Tõnu.
>
>

After the program exits or after the exiting the DOS window? The
command right now is simply 'gmux 1 2 3' where the first number is
bits 5 and 4, the second is bits 3 and 2 and the last is bits 1 and 0.
The program then exits and we see no change on the parallel port. I
haven't looked for what happens after closing the DOS window

Thanks 
Paul.