Category : HD Utilities
Archive   : STACTECH.ZIP
Filename : 2403.TXT

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STACKER NOTE STACKER NOTE
Title: Stacker and Anti-Virus Programs
STAC FAX Index #2403 - 6/22/92
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Background.

Stacker is compatible with anti-virus programs such as those from Norton
(NAV) and Central Point (CPAV). However, in order for them to peacefully
coexist, there are a few guidelines to follow.

Installing Stacker.

Before installing Stacker, disable any TSRs and Anti-Virus programs that
are memory resident. Device drivers such as NAV&.SYS, NAV_.SYS, and
VWATCH.SYS should be disabled by REMarking the drivers in Config.sys
and rebooting.

NOTE: Failure to disable these could result in an incomplete
installation.

Configuring Device Drivers.

It is generally recommended that any anti-virus devices be loaded AFTER
the Stacker device driver in Config.sys. Loading devices such as
NAV_.SYS before Stacker may cause the system to hang while loading the
Stacker device driver.

Immunization.

CPAV allows you to "immunize" executable files by adding signature
information to the file. Do NOT immunize the Stacker device driver files.
These files use their own signature information for a "CheckSum" self-
check at boot time. Immunizing the files disrupts this checksum
information and prevents them from loading. Exempt the files from
immunization by adding them to the immunization exception list. Add the
following files:

STACKER.COM
SSWAP.COM,
STACKER.XT
STACKER.AT
STACKER.MC

If these files have been immunized accidently, restore them from the
Stacker diskette or remove the immunization from the files.

BOOTSAFE from Central Point Anti-Virus.

Bootsafe is Central Point's partition table and boot sector security
system. Usually loaded in Autoexec.bat, it examines the boot sector and
partition information of the default drive (usually C:). If Stacker is
swapping drive letters, Bootsafe will attempt to read this information
on the Stacker logical drive and report: "WARNING partition/boot sector
has been modified!" This solution is simply to make Bootsafe look at
the physical boot partition. The syntax is: BOOTSAFE d:
(where d: is the letter of the SSwapped boot drive.) For example, to
determine the physical boot drive, use the Stacker command. Type

C:\STACKER\STACKER

The Drive Map display will be similar to the following:

STACKER - Stac Electronics, Carlsbad, CA

Drive C: was drive D: at boot time [ D:\STACVOL.DSK = XX.X MB ]
Drive D: was drive C: at boot time

The physical boot drive (D: in this case) is the drive that "was drive
C: at boot time".

Therefore, in Autoexec.bat the Bootsafe line would be:

Bootsafe D:

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Copyright 1993, Stac Electronics