Thread View: comp.os.msdos.desqview
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Started by quarterdeck canada
Sun, 24 Jan 1993 00:23
dv386 and drdos (#2)
Author: quarterdeck canada
Date: Sun, 24 Jan 1993 00:23
Date: Sun, 24 Jan 1993 00:23
103 lines
5148 bytes
5148 bytes
(Continued from the previous message)
your CONFIG.SYS and restore the DEVSWAP.COM line. After you do
this, you must edit your CONFIG.SYS and AUTOEXEC.BAT to restore the
drive specifications to what they were before; e.g. change all
references to drive D: to drive C: and all references to drive C: to
drive D:. As mentioned above, if SSTORDRV.SYS is being loaded high,
you must change it to load low because it won't work when loaded
high. Reboot again. You are now getting the most out of your
conventional memory.
AN ALTERNATIVE METHOD FOR USING OPTIMIZE WITH DR-DOS'S SUPERSTOR
Start with QEMM386.SYS (or QEMM.SYS or QRAM.SYS) on an uncompressed drive.
Leave about one megabyte of space on the uncompressed drive. No other
Quarterdeck files but QEMM386.SYS (or QEMM.SYS or QRAM.SYS) are needed from
the QEMM directory.
The first line in DCONFIG.SYS, which is the config.sys first read on bootup,
should be DEVICE=C:\QEMM\QEMM386.SYS RAM, assuming that QEMM386.SYS is in the
QEMM directory of the same drive that DCONFIG.SYS is on. The entire
DCONFIG.SYS will normally be
DEVICE=C:\QEMM\QEMM386.SYS RAM
DEVICE=C:\DRDOS\SSTORDRV.SYS
DEVICE=C:\DRDOS\DEVSWAP.COM
CHAIN=C:\CONFIG.SYS
Now, move DEVICE=C:\QEMM\QEMM386.SYS to the CONFIG.SYS chained to from
DCONFIG.SYS.
MAKE CERTAIN THAT THE QEMM DEVICE LINE IS NO LONGER IN DCONFIG.SYS.
Run OPTIMIZE.
When you're through running OPTIMIZE, move the DEVICE=C:\QEMM\QEMM386.SYS line
back to the DCONFIG.SYS file.
That's all there is to it. You don't have to get rid of DEVSWAP or change the
drive mappings.
GENERAL CONSIDERATIONS
LASTDRIV.COM
Lastdriv.com is a program that comes with QEMM-386, QEMM-
50/60, and QRAM that allows drive specifiers to be loaded
at the DOS prompt. This allows QEMM-386, QEMM-50/60, and QRAM to
load them high. DR-DOS 6 does not seem to recognize drive
specifiers loaded by Lastdriv.com, whether loaded high or low.
DR-DOS loads its drive specifiers high by itself, when
the HIDOS=ON instruction is used, so Quarterdeck's
Lastdriv.com is not necessary to load drive specifiers high.
STACKS
Unlike MS and IBM DOS, there are no DOS stacks in DR-DOS 6.
There are programs that may malfunction when DOS does not allocate
stacks, such as Ventura running in QEMM-386 with Stealth. Such
users must contact DR to request that they add a STACKS feature to their
operating system.
QEMM-386
QEMM-386 provides all the memory management capabilities of EMM386.SYS,
plus creating more High RAM through the Stealth feature, having OPTIMIZE to
automatically configure your system to use that High RAM most efficiently, and
Manifest, the system diagnostic utility. Microsoft Windows can be run in
standard mode with QEMM-386 while QEMM creates High RAM and provides Expanded
memory. Windows cannot run in standard mode with DR-DOS's EMM386.SYS if it
creates any High RAM, and its Expanded memory manager is turned off while you
are in standard mode.
QRAM
DR-DOS creates UMBs on the same hardware that QRAM creates them on: EMS
cards that map address space outside the page frame and above conventional
memory, and the same varieties of ShadowRAM (NEAT, LEAP, SCAT, and AT/386) so
that QRAM is not necessary to create UMBs or load anything high on DR-DOS.
QRAM does come with OPTIMIZE, which allows you to configure your config.sys
and autoexec.bat automatically so that the most possible resident programs are
loaded high and Manifest, Quarterdeck's system diagnostic utility.
QEMM-50/60
DR-DOS comes with an Expanded Memory Manager for XMA boards which creates
Expanded Memory on some of the same cards that QEMM-50/60 works on. It does
not create any UMBs (High RAM) though so users of these boards need QEMM-50/60
in order to load programs high.
VIDRAM
DR-DOS comes with a program called MEMMAX that allows the user to turn
off the extending of conventional memory into the video area if previously
mapped by their memory manager. This feature does not work without their
memory manager. VIDRAM works just fine. Users of any Quarterdeck memory
manager or enhancer should use VIDRAM instead of MEMMAX.
MANIFEST
1) For purposes of identifying its level of API support, DR-DOS
reports itself as version 3.31 of DOS. It loads an environment
(Continued in the next message)
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