Microsoft Backup, Defrag and Anti-Virus


This file contains the following sections:

5.1 Microsoft Anti-Virus.
5.2 Running Microsoft Backup for MS-DOS under Windows.
5.3 Backup for Windows stops running at the end of the compatibility test.
5.4 Running Microsoft Backup with TI4000 and Gateway NOMAD computers.
5.5 MS-DOS 6.22 Backup Cannot Restore 6 or 6.2 Backups.
5.6 Microsoft Defragmenter.

                                                                            
5.1 Microsoft Anti-Virus

Before cleaning a program file, make sure you have a backup copy of it.
If you clean a program file, and the program is corrupted, reinstall the
program. If Anti-Virus again detects a virus, there is a chance the
detection is in error; contact your software vendor to determine if an
updated version of the program is available.


5.2 Running Microsoft Backup for MS-DOS under Windows

You should not run Backup for MS-DOS while Windows is running. Use
Backup for Windows instead (Backups created using Backup for Windows
can be restored using Backup for MS-DOS).  If you do not have Backup
for Windows installed, see "Installing Anti-Virus, Backup, and Undelete
after Setup" in the "Getting Started" chapter of the Microsoft MS-DOS
USER'S GUIDE.


5.3 Backup for Windows stops running at the end of
       the compatibility test

If Backup for Windows stops running at the end of the Compatibility
Test, you might be loading an incompatible third-party backup driver
in your SYSTEM.INI file. Carry out the following procedure.

NOTE: This procedure disables your third-party backup program.

1. Open your SYSTEM.INI file, and locate the [386Enh] section.

2. Determine whether any of the following lines are included in this
   section:

   DEVICE=FASTBACK.386
   DEVICE=VFD.386
   DEVICE=CPBVXD.386
   DEVICE=VIRWT.386

3. If you find any of these lines, add a semicolon (;) to the front
   of the line.

4. Save the file, restart Windows, and run Backup for Windows again.


5.4 Running Microsoft Backup with TI4000 and Gateway NOMAD computers

To avoid a conflict between the Turbo feature and Microsoft Backup
for Windows or MS-DOS, add a /L0 switch to the DEVICE command in
your CONFIG.SYS that loads the BATTERY.PRO file. Or, before you
run Microsoft Backup, type SETPOWER /L0 at the command prompt.


5.5 Using MS-DOS 6.22 Backup to Restore MS-DOS 6 or 6.2 Backups

Like earlier versions of MS-DOS Backup, the Backup programs included
with MS-DOS version 6.22 support data compression during backup.
However, the MS-DOS 6.22 Backup programs use a different compression
format from earlier versions of Backup.

Because of this, MS-DOS 6.22 Backup for Windows (MWBACKUP.EXE) cannot
restore compressed backups created by MS-DOS 6 or 6.2 Backup. To
restore such backups, use the version of Backup that created them, or
use MS-DOS 6.22 Backup for MS-DOS (MSBACKUP.EXE).

MS-DOS 6.22 Backup for MS-DOS (MSBACKUP.EXE) can restore earlier compressed
backups only if your system is running DoubleSpace (that is, if DBLSPACE.BIN
is loaded in memory). Otherwise, MSBACKUP.EXE cannot restore older backups;
to restore such backups, use the version of Backup that created them.

Both MSBACKUP.EXE and MWBACKUP.EXE can successfully restore 6 and 6.2
backups made without data compression. If you unchecked the Compress
Backup Data box in the Backup Options dialog before you backed up, you
should have no problems restoring your data using the MS-DOS version 6.22
Backup programs.

Restoring a Previous Version of Microsoft Backup

When you run MS-DOS 6.22 Setup, it installs the 6.22 version of the
Backup program(s). The following procedures explain how to re-install
the MS-DOS 6 or 6.2 version of Backup for MS-DOS. The procedure you
use differs depending on the size of your MS-DOS 6 or 6.2 disks.
(The commands in these procedures assume that your Setup disks are
in drive A and your MS-DOS files are located in the C:\DOS directory;
if the disks or MS-DOS files are in a different drive or location,
adjust the commands accordingly.)

If you have MS-DOS 6.2 disks (either 1.2 MB or 1.44 MB disks) or
MS-DOS 6 disks (1.2 MB disks only):

1. Insert Setup Disk 1 in drive A.

2. Type the following commands:

   COPY A:*.OVL C:\DOS
   EXPAND A:MSBACKUP.EXE C:\DOS
   EXPAND A:MSBACKUP.HLP C:\DOS
   EXPAND A:MSBCONFG.HLP C:\DOS

If you are using MS-DOS 6 disks (1.44 MB disks only):

1. Insert Setup Disk 2 in drive A.

2. Type the following commands:

   EXPAND A:MSBACKUP.EXE C:\DOS
   COPY A:*.OVL C:\DOS

3. Insert Setup Disk 3 in drive A.

4. Type the following commands:

   COPY A:*.OVL C:\DOS
   EXPAND A:MSBACKUP.HLP C:\DOS
   EXPAND A:MSBCONFG.HLP C:\DOS

   These commands copy Backup's files from drive A to the C:\DOS
   directory. If Setup Disk 1 is in drive B, or if your MS-DOS files
   are located in a directory other than C:\DOS, you should adjust
   the commands accordingly.


5.6 Microsoft Defragmenter

If you received the "Insufficient Memory" message from Microsoft
Defragmenter, use the MEM command to determine how much conventional,
upper, and extended (XMS) memory is available. In addition to using
all available conventional memory, Defragmenter can make use of up
to 384K of extended memory and 12K of upper memory.

To increase available memory, carry out the procedures in "An MS-DOS
program displays an out-of-memory message" in the chapter "Diagnosing
and Solving Problems" in the MICROSOFT MS-DOS USER'S GUIDE.

If less than 384K of extended memory is available, carry out
the procedures in "Freeing Extended Memory" in the "Making More
Memory Available" chapter in the MICROSOFT MS-DOS USER'S GUIDE.