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From: davidsen@steinmetz.steinmetz.UUCP (William E. Davidsen Jr)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Extended/Expanded Memory
Message-ID: <7700@steinmetz.steinmetz.UUCP>
Date: Mon, 26-Oct-87 15:22:48 EST
Article-I.D.: steinmet.7700
Posted: Mon Oct 26 15:22:48 1987
Date-Received: Wed, 28-Oct-87 05:44:10 EST
References: <7405@dartvax.UUCP> <7662@steinmetz.steinmetz.UUCP> <221@PT.CS.CMU.EDU>
Reply-To: davidsen@crdos1.UUCP (bill davidsen)
Distribution: na
Organization: General Electric CRD, Schenectady, NY
Lines: 29
Keywords: Going from one to the other

In article <221@PT.CS.CMU.EDU> ralf@B.GP.CS.CMU.EDU (Ralf Brown) writes:
|In article <7662@steinmetz.steinmetz.UUCP> davidsen@crdos1.UUCP (bill davidsen) writes:
|>In article <7405@dartvax.UUCP> merchant@dartvax.UUCP (Peter Merchant) writes:
|>|I have a Zenith 248 with 3 megabytes of extended memory.  I need to take that
|>|memory and turn it into expanded memory.  Does anyone know if such a thing is
|>|possible?  Any public domain/shareware products?
|>
|>QEMM from Quarterdeck seems to work quite well. I have the 386 version,
|>but I'm told that there is a 286 version as well. It's absolutely possible.
|>-- 
|>	bill davidsen		(wedu@ge-crd.arpa)
|
|The QEXT.SYS driver which comes with DV 2.0 calls itself QEXTXXX0, and has
|the startup message "QUARTERDECK EXTENDED MEMORY MANAGER".  If this is
|what you are thinking of, it will *not* allow you to use extended memory
|as expanded memory.  What it DOES do is allow DESQview to run about 60K of
|itself in the first 64K of extended memory *without* switching to protected
|mode.

I don't know exactly what it does. I can run 4 600k DOS programs at
once, so I assume that it does what the manual say: allows extended
memory to be used as expanded memory. Looking at the LIM standard, the
interface is all via interrupts, so you can use *anything* as LIM
memory, including disk! Someone will remember the name of the product
and post it, I hope, I can't find it.
-- 
	bill davidsen		(wedu@ge-crd.arpa)
  {uunet | philabs | seismo}!steinmetz!crdos1!davidsen
"Stupidity, like virtue, is its own reward" -me