From: Charles Sandmann <sandmann AT clio DOT rice DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: DJGPP exe switch console to 80 columns
Date: Tue, 25 Mar 2003 08:36:37 CST
Organization: Rice University, Houston TX
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> Well, the problem appears whenever you include any call to some conio 
> function. It is no necesary to execute the function, only that it is in 
> the program!

if you include a conio function, it's initialization is always called.
gppconio_init in src\libc\pc_hw\co80\conio.c calls a few int 0x10 calls
to find out about the video - I suspect Win2K/XP see these calls and 
turn on a strict video emulation.

It would be nice to avoid this.  I quite often will do a "kill ntvdm"
on my system to clean out the ntvdms which have collected attributes
like video size I don't like.