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From: igp@camcon.uucp (Ian Phillipps)
Newsgroups: comp.sys.ibm.pc,comp.os.misc
Subject: Re: Wanted: reports on Concurrent DOS
Message-ID: <1480@titan.camcon.uucp>
Date: 16 May 88 09:12:38 GMT
References: <981@unccvax.UUCP>
Organization: Cambridge Consultants Ltd., Cambridge, UK
Lines: 37

From article <981@unccvax.UUCP>, by mru@unccvax.UUCP (Markus Ruppel):
> in article <1436@titan.camcon.uucp>, igp@camcon.uucp (Ian Phillipps) says:
That's me!
>> I evaluated CDOS-XM (version 5.1 I think); it seemed ok but not what we were
>> looking for at the time.
> Look at the newest release 6.0 ( or 2.0 for 80386 ) which is DOS 3.3 com-
> patible. But anyway, what where you looking for ?

A painless way to let a MSDOS program expand over 640K bytes. I've changed
jobs since, so my need has ceased. We also looked at other stuff from DRI.
Specifically, the XM version didn't work because our machines had 640K to start
with, so you couldn't configure in any extended (expanded - I never remember!)
memory.  Also, it couldn't run GEM in more than one window. (Let not one hand
know that the other is shooting itself in the foot.)

I did find a way, though, of removing 120K of junk from the program, much
contributed by truly gruesome code from DRI - about 60K wasted in the AES &
VDI libraries interface alone, and a further 40K caused by an error in the
GEM code!

>> HOWEVER - it did trash a hard disk formatted by MSDOS 3.x.  The product did
> I've been using 5.0, 5.1, and 5.2 ( after that 6.0 ) on DOS 3.1 & 3.2
> formated HD's and never had a problem. Would you mind to specify how your
> HD crashed ?

The HD had 16-bit FATs (it was a ITT Xtra XP with a 20MB built-in), which the
C-DOS did not understand.  I can't remember the exact sequence of actions,
but writing anything to the disk junked the FAT. I only tried it once.

> Markus Ruppel Dept. of Chemistry Univ. of NC at Charlotte
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>       ...!mcnc!mru
> BITNET: ACC00MR1@UNCCVM
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