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- SYMANTEC CORPORATION - PETER NORTON GROUP
- READ.ME file for Norton AntiVirus Version 3.0
-
- WELCOME TO NORTON ANTIVIRUS!
-
- This file contains information about Norton AntiVirus.
- To print this file from the DOS prompt, type: COPY READ.ME PRN:
-
- This document has two sections:
-
- 1) General Program Information
- 2) Compatibility Information
-
-
- *******************************
- * General Program Information *
- *******************************
-
- ***** WARM BOOT TRAP *****
- TSRs, device drivers, or programs that trap warm boots (Ctrl+Alt+Del)
- may override automatic protection's ability to check for boot viruses
- on floppy disks. Likewise, programs that perform a warm boot without
- (Ctrl+Alt+Del) will bypass the automatic check for boot viruses.
-
- ***** INOCULATION FILES *****
- The inoculation files are: NAVSYS.DAT and NAVINOC.DAT. They are stored
- in the NCDTREE directory by default.
-
- ***** INFECTION LOG *****
- The infection log records known and unknown virus detections. It does
- not record inoculation activities as stated in "Viewing the Infection
- Log" in Chapter 6 of the manual.
-
- ***** DOS ERROR LEVEL CODES *****
- In addition to the DOS error level codes outlined in "DOS Command-Line
- Switches" in Appendix C, the following error code could also be
- returned:
-
- Code Error
- 255 Scan Not Completed
-
- This error usually occurs when there is not enough memory to load
- Norton AntiVirus. 470K of memory is required.
-
- ***** AUTOMATIC PROTECTION AND MEMORY OPTIMIZATION *****
- The automatic protection TSR does not require memory optimization to use
- UMBs efficiently. If you are planning to optimize memory, we recommend
- doing so before installing Norton AntiVirus. If Norton AntiVirus is
- already installed, remove automatic protection from CONFIG.SYS or
- AUTOEXEC.BAT and then reboot before running the optimization program.
- Once the memory optimization is complete, add the command to load
- automatic protection back to the appropriate file and reboot again.
-
- ***** AUTOMATIC PROTECTION MEMORY USAGE *****
- If your computer has a limited amount of memory available for the
- automatic protection TSR, use the table below to determine which
- options to turn off in order to reduce the amount of memory used.
- Be aware that turning off options reduces the level of protection.
-
- The automatic protection options are in the Options - Auto-Protect
- Settings dialog box and the Options - Inoculation Settings dialog box.
-
- Option TSR size
- 5K 12K 30-45K
- -------------------------------------------------------
- Run ON ON ON
- Open OFF OFF ON
- Create OFF OFF ON
- Use Virus Sensor Technology OFF OFF ON
- Low-Level Format of Hard Disk OFF OFF ON
- Write to Hard Disk Boot Records OFF OFF ON
- Write to Floppy Disk Boot Records OFF OFF ON
- Write to Program Files OFF OFF ON
- Read-Only Attribute Change OFF OFF ON
- Check Floppies For Boot Viruses OFF ON ON
- Upon Access
- When Rebooting, Check Both Drives OFF ON ON
- Inoculate Boot Records and ON ON ON
- System Files
- Inoculate Program Files ON ON ON
- Inoculate Files on Floppies ON ON ON
-
- NOTE: When using the 12K version of the auto-protect TSR, if a virus is
- found when checking floppies for virus upon access or when rebooting,
- you will only be notified. You can subsequently scan the floppy disk to
- find and remove the virus.
-
- *****************************
- * Compatibility Information *
- *****************************
-
- ***** Microsoft Windows *****
- If you are prompted to inoculate a file while windows is loading and
- your computer subsequently "hangs", type the following command line at
- the DOS prompt to inoculate the windows files:
-
- C:\NAV\NAV /REFRESH C:\WINDOWS /S
-
- If Norton AntiVirus is not installed in C:\NAV or Windows is not
- installed in C:\WINDOWS, substitute the appropriate path.
-
- After inoculating the windows files you can then load Windows.
-
- ***** NEC *****
- If your computer hangs when Norton AntiVirus checks the A: drive on a
- warm boot, add the following statement to your CONFIG.SYS file:
-
- STACKS=9,256
-
- ***** AUTOMATIC PROTECTION AND UPDATING SOFTWARE *****
- If you have configured Norton AntiVirus to detect unknown viruses using the
- Virus Sensor Technology feature, you may get unknown virus alerts when
- installing or updating software. This does not necessarily mean the file is
- infected with an unknown virus. The installation process may be overwriting
- existing files or expanding compressed files which may trigger an alert.
-
- ***** AUTOMATIC PROTECTION AND COMPRESSED DRIVES *****
- If you install Norton AntiVirus on a compressed drive and subseqently get
- the error message "NAVOPTS.DAT file not found, default settings loaded,"
- install automatic protection as a TSR. For instructions, see "Using
- Automatic Protection as a TSR" in Chapter 7 of the manual.
-
- ***** BYPASS KEYS WITH MEMORY MANAGERS *****
- By default, pressing both ALT keys will bypass the loading of the Auto-Protect
- feature of Norton AntiVirus. The memory managers, QEMM and 386MAX, also use
- both ALT keys to bypass their loading. If you are using either of these
- memory managers, you may wish to modify the bypass keys used by Norton
- AntiVirus. For instructions, see "Monitoring During Startup" in Chapter 7
- of the manual.
-
- ***** INSTALLING FROM WITHIN WINDOWS *****
- If you are planning to install Norton AntiVirus from within Windows, turn off
- any screen saver first.
-
- ***** CONFIG.SYS *****
- The FILES statement in your CONFIG.SYS file should be set to a minimum of 11.
- We recommend setting FILES to 15.
-
- ***** END OF FILE *****
-
-