Xref: news2.mv.net comp.os.msdos.djgpp:2530
From: Charles Sandmann <sandmann AT clio DOT rice DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Critical Error Handler
Date: Sun, 07 Apr 1996 23:02:33 CDT
Organization: Rice University, Houston, Texas
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Message-ID: <31688fd9.sandmann@clio.rice.edu>
References: <4jvore$3pb AT daneel DOT dnet DOT co DOT uk>
Reply-To: sandmann AT clio DOT rice DOT edu
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

> How do I trap the DOS critical error interrupt ?

By default, the critical error handler in V2 is set to "fail", since this
is the only supported method when running under DPMI.  If you really want
it anyway, you can hook Int 24h (in PM) and DPMI will usually provide you
with the appropriate information.  Exception: CWSDPMI - since I never got
around to implementing Int 24h (you can hook it, but it will never be called).
Workaround (ugly) is to use a RMCB and hook the RM int 24h.  If I was 
harrassed a lot I would fix the PM Int 24h in CWSDPMI, but so far no complaints.