Installing New Virus Definition Files
                 =====================================

As part of our continuing commitment to fight the spread of computer
viruses, Symantec has developed a new program called Intelligent
Updater to simplify virus definition file updates.  Intelligent
Updater locates Norton AntiVirus on your computer and installs new
virus definition files automatically.  All you have to do is run the
program, then scan your disk with Norton AntiVirus.

There are several versions of Intelligent Updater available.  The newest
package is a version of Intelligent Updater 2.0, used to deliver
virus definitions for all the NAV products. The program name, which
changes from month to month, uses the following form:

mmddx86.EXE, where mm is the month, and dd is the day.


To update Norton AntiVirus for Windows 95 virus definition files:
---------------------------------------------------------------------

1. Go to (select) the folder or drive where you have the Intelligent
   Updater program.
   For example, your A: drive.
2. Double-click (launch) the Intelligent updater program.
3. Follow the instructions on screen.
4. Start Norton AntiVirus and scan your drive.  Before you reboot
   your computer, you must run a scan for viruses.  Scanning your
   drive activates the new virus definitions and rebuilds critical
   files.
5. Restart your computer so that Auto-Protect uses the new
   definitions.


To update Norton AntiVirus 3.0/4.0 virus definition files from
Windows:
---------------------------------------------------------------------

1. Go to (select) the directory or drive where you have the
   Intelligent Updater program.
   For example, your A: drive.
2. Double-click on the intelligent updater program.
3. Follow the on screen instructions.
4. Start Norton AntiVirus and scan your drive.  Before you reboot
   your computer, you must run a scan for viruses.  Scanning your
   drive activates the new virus definitions and rebuilds critical
   files.
5. Restart your computer so that Auto-Protect uses the new
   definitions as well.


To update Norton AntiVirus 3.0/4.0 virus definition files from DOS:
---------------------------------------------------------------------

1. Exit Windows entirely.
   For example, from within Windows, select EXIT from the File menu.
2. Change to the directory or drive where you have the Intelligent
   Updater program.
   For example, type A: at the C:\ prompt.
3. From the DOS prompt, type Intelligent Updater program name and
   press Enter.
4. Follow the instructions on screen.
5. Start Norton AntiVirus and scan your drive.  Before you reboot
   your computer, you must run a scan for viruses.  Scanning your
   drive activates the new virus definitions and rebuilds critical
   files.
6. Restart your computer so that Auto-Protect uses the new
   definitions as well.


To update Norton AntiVirus Network Manager virus definition files:
---------------------------------------------------------------------

1. On a workstation connected to the network, change to the directory
   where you downloaded the Intelligent Updater program.
2. Map a drive letter to the volume and directory where Norton
   AntiVirus Network Manager is installed.
3. You must have READ and WRITE access to the mapped drive.
4. From a DOS prompt, type Intelligent Updater program name [path]
   and press Enter.
   [path] is the location mapped in step 2.
5. Follow the instructions on screen.
6. Start Norton AntiVirus from the Norton AntiVirus Network Manager
   directory and scan a drive to activate the new virus definitions.
   You must run a scan for viruses.  Scanning a drive activates the
   new virus definitions and rebuilds critical files.

To update Norton AntiVirus 2.0 for Windows NT virus definition files:
---------------------------------------------------------------------

1. Go to (select) the folder or drive where you have the Intelligent
   Updater program.
   For example, your A: drive.
2. Double-click (launch) the intelligent updater program.
3. Follow the instructions on screen.
4. Start Norton AntiVirus and scan your drive.  You must run a scan
   for viruses.  Scanning your drive activates the new virus
   definitions and rebuilds critical files.

To update Norton AntiVirus 4.0 for Windows NT virus definition files:
---------------------------------------------------------------------

1. Go to (select) the folder or drive where you have the Intelligent
   Updater program.
   For example, your A: drive.
2. Double-click (launch) the intelligent updater program.
3. Follow the instructions on screen.
4. Start Norton AntiVirus and scan your drive.  You must run a scan
   for viruses.  Scanning your drive activates the new virus
   definitions and rebuilds critical files.


To update Norton AntiVirus for NetWare virus definition files:
---------------------------------------------------------------------

1. On a workstation connected to the network, change to the directory
   where you downloaded the Intelligent Updater program.
2. Map a drive letter to the volume and directory where Norton
   AntiVirus for NetWare is installed.
3. You must have WRITE access to the mapped drive.
4. Disable the Norton AntiVirus for NetWare NLM.
    Choose DISABLE NLM from the Tools menu in the Norton AntiVirus
    for NetWare Windows configuration window.
        or
    Press F3 at the NAVNLM server console screen.
5. From a DOS prompt, type Intelligent Updater program [PathToNAVNLM]
   and press Enter.  This will automatically extract the files in the
   update to the specified path.
6. [path] is the location mapped in step 2.  Follow the instructions
   on the screen.
7. Enable the Norton AntiVirus for NetWare NLM.
    Choose ENABLE NLM from the Tools menu in the Norton AntiVirus for
    NetWare Windows configuration window.
        or
    Press F2 at the NAVNLM server console screen.


=====================================================================
Installing Virus Definition Files Manually
=====================================================================

If you do not want Intelligent Updater to install the new virus
definitions for you automatically, you can use the /DUMP command to
extract the virus definition files, then copy the appropriate files
to the Norton AntiVirus folder.

To install virus definition files manually:
---------------------------------------------------------------------

1. Copy the Intelligent Updater program to an empty, temporary
   folder.
2. Launch the Intelligent Updater program using the /DUMP command:

   mmddx86.EXE /DUMP

   Virus definition files for all supported platforms are extracted
   into the temporary folder.
3. Copy the appropriate files to the Norton AntiVirus folder.  If
   you are using Norton AntiVirus 4.0 for Windows 95 / Windows NT
   Server & Workstation, copy the files to this location:
   C:\Program Files\Common Files\Symantec Shared\VirusDefs\Incoming\
   In addition, the file ZDONE.DAT needs to be copied last to this
   location.  The presence of this file acts as a signal that the
   definition set has been completely loaded, and may cause errors
   if it is not the last file copied to the directory.  One easy
   way to insure this is to rename ZDONE.DAT to Z.DAT, copy all the
   files to the definition directory, and then rename Z.DAT back to
   ZDONE.DAT in the definition directory.  This is a zero-byte file,
   and if your version of the copy command doesn't copy this file,
   the xcopy command will.
4. Refer to the Intelligent Updater File List below for information
   on which files to copy into the Norton AntiVirus folder.

=====================================================================
Intelligent Updater File List
=====================================================================

Norton AntiVirus 1.0 for Windows 95
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virscan.dat
virscan2.dat
virscan.inf
navex.exp
navex32.dll
navex.vxd
technote.txt
update.txt
whatsnew.txt
ncsacert.txt

Norton AntiVirus 2.0 for Windows 95
---------------------------------------------------------------------
virscan.dat
virscan.inf
virscan2.dat
navex32.dll
navex.vxd
navex.exp
technote.txt
update.txt
whatsnew.txt
ncsacert.txt

Norton AntiVirus 3.0 for DOS/Windows
---------------------------------------------------------------------
virscan.dat
virscan2.dat
virscan.inf
navex.exp
navex16.dll
technote.txt
update.txt
whatsnew.txt
ncsacert.txt

Norton AntiVirus 4.0 for DOS/Windows
---------------------------------------------------------------------
virscan.dat
virscan2.dat
virscan5.dat
virscan.inf
navex.exp
navex16.dll
technote.txt
update.txt
whatsnew.txt
ncsacert.txt

Norton AntiVirus 4.0 for Windows 95 / Windows NT Server & Workstation
---------------------------------------------------------------------
virscan1.dat
virscan2.dat
virscan3.dat
virscan4.dat
virscan5.dat
virscan6.dat
virscan7.dat
virscan8.dat
virscan.inf
navex32a.dll
navex15.exp
navex15.sys
navex15.vxd
naveng.exp
naveng32.dll
catalog.dat
ncsacert.txt
technote.txt
whatsnew.txt
update.txt
zdone.dat

Norton AntiVirus 2.0 for Windows NT
---------------------------------------------------------------------
virscan.dat
virscan2.dat
virscan.inf
navex.sys
navex32.dll
technote.txt
update.txt
whatsnew.txt
ncsacert.txt

Norton AntiVirus 2.0 for NetWare
---------------------------------------------------------------------
virscan.dat
virscan.inf
virscanm.dat
navex.nlm
technote.txt
update.txt
whatsnew.txt
ncsacert.txt

Norton AntiVirus 4.0 for NetWare
---------------------------------------------------------------------
virscan.dat
virscan1.dat
virscan2.dat
virscan3.dat
virscan4.dat
virscan5.dat
virscan6.dat
virscan7.dat
virscan8.dat
virscanm.dat
virscan.inf
navex15.nlm
naveng.nlm
technote.txt
update.txt
whatsnew.txt
ncsacert.txt

Norton AntiVirus Internet Scanner for Windows 3.1
---------------------------------------------------------------------
virscan.dat
virscan.inf
navex16.dll
technote.txt
update.txt
whatsnew.txt
ncsacert.txt

Norton AntiVirus Scanner for Windows NT, Norton NT Tools and Internet
Scanner for Windows 95
---------------------------------------------------------------------
virscan.dat
virscan.inf
navex32.dll
technote.txt
update.txt
whatsnew.txt
ncsacert.txt