Date:	Wed, 21 Oct 1998 16:33:37 +0100
From:	Matthias Paul <PAUL-MA AT reze-1 DOT rz DOT rwth-aachen DOT de>
Subject:	Re: Suggestions for DR-DOS
To:	opendos AT delorie DOT com
Message-id:	<380A71016ED@reze-1.rz.rwth-aachen.de>
Organization:	Rechenzentrum RWTH Aachen
X-Mailer:	Pegasus Mail v3.22
Reply-To:	opendos AT delorie DOT com

On Tue, 13 Oct 1998 Guti wrote:

>              DISKCOPY, and DISKCOMP may use XMS, EMS, or disk and 
>              so avoid changing disks when coping or comparing 
>              from/to the same drive (also aplyable to 
>              COPY, MOVE, XCOPY).

A while ago I already answered this one. However, in the meantime
I have looked this up and DISKCOPY and DISKCOMP actually use
XMS, EMS, raw extended memory INT15, and hard disk swapping (if
%TEMP% or %TMP% are defined). This is implemented since DR DOS 6.0
long before it partially found its way into MS-DOS/PC DOS.

If this is not working in your configuration this is probably because
the system does not properly provide extended or expanded memory
(I recall a strange MEM output reported), or these environment
variables have not been set, or you're trying to do this under 
Windows.

Hope it helps,

 Matthias
 

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