From: AYeryomin AT excelsior-usa DOT com (Alex Yeryomin)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: IRQ handling in windows DOS box
Date: 10 Jun 2002 22:52:03 -0700
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To: djgpp AT delorie DOT com
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I guess you need tell Windows that your program uses some IRQ (5 or 7,
for LPT). If you don't, by default Windows doesn't rise IRQs that is
not in use by Windows's itself. You can do it in "Control Panel /
Devices".