This file contains the following sections:
6.01 4DOS and NDOS.
6.02 Above Board 286 and Above Board Plus Installation Programs.
6.04 Colorado Tape Backup.
6.05 Fastback Plus.
6.06 Norton Desktop for Windows 2.0.
6.07 Norton Utilities.
6.08 PC Tools.
6.09 QEMM's Stealth DoubleSpace Feature.
6.10 Johnson Computer Systems PC-Vault and PC-Vault Plus.
6.11 AddStor DoubleTools.
6.01 4DOS and NDOS
4DOS and NDOS are compatible with MS-DOS 6. However, to use some of the
new features in MS-DOS 6.22 (such as MemMaker, the LOADHIGH /L switch,
DIR compression switches, and the ability to bypass startup commands),
contact JP Software to obtain 4DOS 4.02 or later, or Symantec to obtain
Norton Utilities 7.0 or later.
If you use multiple configurations, 4DOS or NDOS will not automatically
run your AUTOEXEC.BAT file unless you include a /P on the SHELL line in
your CONFIG.SYS file.
To use MS-DOS 6.22 Help instead of 4DOS or NDOS Help, start it by using
COMMAND /C HELP, or define a 4DOS or NDOS alias to run HELP.COM from
your MS-DOS 6.2 directory.
6.02 Above Board 286 and Above Board Plus Installation Programs
Do not use an Above Board installation program dated May 1989
or earlier until you disable programs that use extended memory,
such as SMARTDrive or RAMDrive. You might lose data if you leave
these programs enabled. After you have installed Above Board,
you can reenable these programs.
CAUTION: Using versions 3.0 to 3.13 of the CodeView CV.EXE
file may cause data loss if your system has an 80386 memory
manager (such as EMM386.EXE) and device drivers or programs
that use extended memory. To determine which version you
have, type CV.EXE at the command prompt.
6.04 Colorado Tape Backup
If you receive a message that you have two versions of the
VFINTD.386 file loaded, you probably need to edit your
SYSTEM.INI file. To do so, carry out the following procedure:
1. Open your SYSTEM.INI file and locate the [386Enh] section.
You should see two lines similar to the following:
2. If you plan to use your Colorado Tape Backup program, add a semi-
colon (;) before the DEVICE command for the VFINTD.386 file. If you
plan to use Microsoft Backup, add a semi-colon before the DEVICE
command for the CMSDTAPE.386 file.
3. Save the file, and restart Windows.
6.05 Fastback Plus
If you have a version of Fifth Generation Systems Fastback Pluse earlier
than 3.0, use the LOADFIX command before running Fastback Plus or the
Fastback Plus installation program to ensure that you don't lose data. To
do so, type the following at the command prompt:
6.06 Norton Desktop for Windows 2.0
Setup adds a second Tools menu which contains Microsoft Backup and
Antivirus commands (if you installed these Windows programs),
as well as a Compression Info command (if DoubleSpace or DriveSpace
If you use compress the drive that contains SmartCan, you might
experience system problems afterward. To correct this, reinstall
Norton Desktop for Windows.
For information about using Norton AntiVirus in conjunction with
DoubleSpace or DriveSpace, see the following section.
6.07 Norton Utilities
Norton Speed Disk and Norton Disk Doctor versions 8.0 and earlier will
not run on DriveSpace drives. For an updated version of these Norton
utilities, contact your software vendor.
The "Clear Space" option of Norton Speed Disk (prior to version 7.0)
is incompatible with DoubleSpace drives and DriveSpace drives. For
an updated version of Norton Speed Disk, contact your software vendor.
Do not use the WipeInfo utility (prior to version 8.0) on compressed
drives. It can cause lost clusters. If you have already used this
option, use the SCANDISK command to fix the lost clusters.
If Norton AntiVirus is running when you compress the drive that
contains the NAV_.SYS file, a copy of the NAV_.SYS file remains
on the host drive. This prevents Norton AntiVirus from reporting a
virus infection during the compression process. After the compression
process is complete, you can safely delete the copy of NAV_.SYS on
the host drive.
If you use the Norton Cache or Speedrive utilities, load the utility
after the DEVICE command that loads DRVSPACE.SYS. For more information,
see section 7.24.
6.08 PC Tools
If PC Shell does not show all of the files or directories on your drive,
quit PC Shell immediately and contact Central Point Software for an update.
CAUTION: Do not attempt to use PC Shell on that drive; severe data
loss might occur. This problem affects both compressed and
The DISKFIX /SCAN option in PC Tools can cause lost clusters on
DriveSpace and DoubleSpace drives. Avoid using this option. (If you
have already used this option, use ScanDisk to fix the lost clusters.)
The COMPRESS command of PC Tools versions 6.0 and 5.5
is incompatible with DoubleSpace and DriveSpace.
6.09 QEMM's Stealth DoubleSpace Feature
The Stealth DoubleSpace feature of QEMM versions 7.03 and 7.04 are
fully compatible with MS-DOS 6.22; these versions are available to all
QEMM 7 users through online services such as CompuServe, BIX, and the
QuarterDeck BBS, as well as directly from QuarterDeck Office Systems.
The Stealth DoubleSpace driver (ST-DBL.SYS) included with version 7.02 is
compatible with DoubleSpace, but not with DriveSpace, DEFRAG.EXE or
automounting compressed floppies. If you use QEMM version 7.02, obtain an
update from one of the online services listed above or from QuarterDeck
The Stealth DoubleSpace driver (ST-DBL.SYS) included with version 7.01 is
incompatible with MS-DOS 6.22 (both DriveSpace and DoubleSpace). If you use
QEMM version 7.01 and your system does not start, see the following section.
If you use the Stealth DoubleSpace feature of QEMM version 7.01
The Stealth DoubleSpace feature of QEMM 7.01 is incompatible with
MS-DOS 6.22. If you are running DoubleSpace and use the Stealth DoubleSpace
feature of QEMM version 7.01, your computer will not start properly.
To work around this problem, press F8 when your computer starts.
Answer Y to all prompts except the following:
When MS-DOS displays this prompt, answer N. (The pathname for
ST-DBL.SYS may be different on your computer.) After your computer
starts, edit your CONFIG.SYS file and make the following changes:
* Disable the DEVICE command for ST-DBL.SYS by using the REM command.
* If you use DoubleSpace, add a DEVICE command for DBLSPACE.SYS.
(If you use DriveSpace, add a DEVICE command for DRVSPACE instead.)
6.10 Johnson Computer Systems PC-Vault and PC-Vault Plus.
If you use version 4.6 or earlier of the PC-Vault or PC-Vault Plus
hard disk protection system, do not use the Maximum Floppy
Boot Protection option if you use DoubleSpace or DriveSpace.
In these versions of PC-Vault and PC-Vault plus, the Maximum Floppy
Boot Protection option is incompatible with DoubleSpace and DriveSpace,
and may cause data loss. If your version of PC-Vault or PC-Vault Plus
is earlier than 4.6, contact Johnson Computer Systems for an upgrade.
6.11 AddStor Double Tools
AddStor's Double Tools version 1.0 and 1.2 work only with DoubleSpace;
they do not work with DriveSpace.
AddStor's Double Tools version 1.0 works with MS-DOS 6.22 DoubleSpace
as long as you do not install AddStor's enhanced DoubleSpace drivers.
When you install Double Tools version 1.0, do not check the "Install
enhanced DoubleSpace drivers" box. If you do, Double Tools will replace the
MS-DOS 6.22 DBLSPACE.BIN file with the Double Tools version of DBLSPACE.BIN,
which is compatible only with MS-DOS 6.0. The next time you start your
computer, it will display the message "Wrong DBLSPACE.BIN version" and
none of your compressed drives will be mounted.
If you are using Double Tools version 1.0 or 1.2 with the enhanced
DoubleSpace driver installed, you will not be able to run MS-DOS 6.22
Setup. To solve this problem, run Double Tools' DTCONFIG.EXE program
and choose the "Microsoft" (version 1.0) or "Standard" (version 1.2)
option. Then save your changes, exit from DTCONFIG, and run MS-DOS
6.22 Setup again.