Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!mips!sjsca4!poffen
From: poffen@sj.ate.slb.com (Russ Poffenberger)
Newsgroups: comp.windows.ms
Subject: Re: Non-Win3.0 Applications and 640K barrier ?
Message-ID: <1990Sep4.214248.4870@sj.ate.slb.com>
Date: 4 Sep 90 21:42:48 GMT
References: <25405.26e37c81@kuhub.cc.ukans.edu>
Reply-To: poffen@sj.ate.slb.com (Russ Poffenberger)
Organization: Schlumberger Technologies, San Jose, CA.
Lines: 34

In article <25405.26e37c81@kuhub.cc.ukans.edu> michal@kuhub.cc.ukans.edu (Merlin The Magician) writes:
>
> This is probably very naive, but is it true that win 3.0 when
>running non-windows applications cannot use memory beyond 640k for
>those applications ? I have tried unsuccessfully to run Kermit and
>MicroEmacs at the same time (386 enhanced mode). The windows
>applications are smart enough to use mem beyond 640. 
> My gut feeling is that the only way to increase memory for those
>applications is to romove as much junk from config.sys and
>autoexec.bat (like tsr and device drv) or put those into high mem. 
> Please correct me if I am wrong. If such is the case, I would
>appreciate pointers on how to put the drivers into high mem  in order
>to maximize the low memory.  
> My primary reason for getting windows was the 386 enhanced mode. The 
>multitasking if you insist. It all works well, and as well as I have 
>probably expected it to work. The glitch seems to be the non-windows
>applications still stuck < 640K !
> Where can I find win 3.0 shareware ? (ftp).

Any particular non-windows application is still bound by the limitations of
DOS and therefore can only run in a virtual '86 window using that capability
of the 386 architecture. The amount of memory actually available is roughly
the same as it was before windows was started. Loading drivers and TSR's into
high memory will help to give more for each window.

You can however have as many of these virtual windows open at once based upon
your total memory. I routinely open 5+ such windows using my 386-35 with 8Meg
of ram.


Russ Poffenberger               DOMAIN: poffen@sj.ate.slb.com
Schlumberger Technologies       UUCP:   {uunet,decwrl,amdahl}!sjsca4!poffen
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