VirusScan Version 2.2
                       Copyright 1995 by McAfee, Inc.
                            All Rights Reserved.



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           Using VirusScan (Version 2.2)                             
            
            TABLE OF CONTENTS

            Chapter 1: Welcome to VirusScan  / 1   
                       What VirusScan includes  / 3 
                       System requirements  / 5
                       License and registration  / 6
                       Technical support  / 6 
            Chapter 2: Don't skip this chapter  / 10 
                       Installing VirusScan  / 11 
                       Scanning your system  / 14 
                       If you detect a virus  / 16 
                       Activating VShield  / 19 
                       Making a clean start-up diskette  / 21 
                       Running the VirusScan programs  / 23 
                       When to rescan  / 25 
                       Updating VirusScan regularly  / 25 
            Chapter 3: Scan Reference  / 28 
                       Technical overview  / 30 
                       Validating Scan  / 31 
                       Running Scan from the command line  / 31 
                       Scan command line option summary  / 33 
                       Scan option descriptions  / 36
                       Cleaning viruses  / 46 
                       Examples  / 50 
                       Error levels  / 51
                       Application note 1: Updating validation codes  / 53 
                       Application note 2: Reformatting infected 
                          diskettes with DOS 5.0 and later  / 53 
                       Technical note 1: Creating an exception 
                          list file for the /EXCLUDE option  / 54 
            Chapter 4: VShield Reference  / 55 
                       Four levels of protection  / 58 
                       Running VShield  / 60 
                       VShield option summary  / 64 
                       VShield option descriptions  / 66 
                       Deciding which options are for you  / 73 
                       Examples  / 75 
                       Error levels  / 76 
                       Using VShieldCRC  / 77 
                       VShieldCRC option summary  / 78 
                       Using CheckVShield  / 79 
                       Technical note 1: Creating an exception list 
                          for the /EXCLUDE option  / 81 
                       Technical note 2: Sample NetWare login 
                          script and .BAT file  / 82 
            Chapter 5: Tips & troubleshooting  / 83 
            Appendix A: Retrieving McAfee programs with
                        communications software  / 91 
            Appendix B: Options comparison between VirusScan 
                        versions 1.5 and 2.1.1  / 96 
            Glossary  / 106
            
            
           Using VirusScan (Version 2.2)                             1

            CHAPTER 1: WELCOME TO VIRUSSCAN
            
            Thank you for purchasing McAfee(R)'s VirusScan(TM)
            software, a powerful and advanced system
            designed to detect, eradicate, and prevent
            computer viruses. VirusScan will help you
            protect one of your most important assets--the
            information on your personal computer or local
            area network.
            
            VirusScan includes two main programs:
            
            o The Scan program detects known viruses in your
              computer's memory or on disks. It can also
              detect new and unknown viruses. Once viruses
              are detected, it can remove them and restore
              your system to normal operation. The Scan
              program comes in two forms:

              o A graphical interface so that you can select
                commands and options using a mouse and
                keyboard, if you like. For instructions,
                see the on-line documentation.
              
              o A command line interface, so you can run the
                program and select options by typing from a
                command prompt or from batch or script files,
                if you prefer.

            o The VShield(TM) memory-resident program
              continuously monitors and protects your
              system from viruses that might be introduced.
            
            The VirusScan programs run on IBM-PC or 100%
            compatible personal computers (PCs) that use
            DOS, Windows, or OS/2.
            
            VirusScan is an important element of a
            comprehensive security program that includes a
            variety of safety measures, such as regular
            backups, meaningful password protection,
            training, and awareness. We urge you to set up
            and comply with such a security program in your
            organization. For tips on how to do this, see
            "Other sources of information" in this chapter.