Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!newstop!sun!plx!plxsun!johnc
From: johnc@plxsun.uucp (John Ciccarelli)
Newsgroups: comp.windows.ms.programmer
Subject: Re: Large model programs in Windows 3.0
Summary: Default DS of multiple instances overlap
Keywords: large model multiple instance
Message-ID: <2560@plx.UUCP>
Date: 30 Jan 91 17:38:43 GMT
References: <1991Jan30.003343.23383@watserv1.waterloo.edu>
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Reply-To: sun!plx!johnc (John Ciccarelli)
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Organization: Plexus Software, Santa Clara, CA
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In article <1991Jan30.003343.23383@watserv1.waterloo.edu> tom@mims-iris.waterloo.edu (Tom Haapanen) writes:

> I ...understand that a (large model) program is limited to a 
> single instance ... can someone explain *why* it is so?

I haven't looked at this issue in Win3, but in previous releases the 
"default DS" of every instance of a large-model app had the same
physical address!  We verified this with Heapwalk.

John Ciccarelli
Plexus Software, 5200 Great America Pkwy, Suite 200, Santa Clara CA 95054
email: ...sun!plx!johnc,  voice: 408-982-4842,  fax: 408-727-4864