After inserting the Norton AntiVirus CD in the CD-ROM, double-click the My Computer icon. Locate the icon for the CD-ROM drive (it is normally drive D:) then double-click on it. Double-click on the NAV95 2.01 folder. Locate the Setup file and double-click on it, this will start the setup program.

Since Norton AntiVirus is signature based, you will need to update the files that the program uses to detect and remove viruses. These files are updated monthly. You can either download the files directly from the Symantec website (http://www.symantec.com/avcenter/download.html) and run them, or use the Live Update option. If you do not have access to the Internet you can order the updates on disk directly from Symantec.

Norton AntiVirus detects unknown viruses through their activity or changes made to inoculated files. However, this is not as reliable as detecting them via their signatures. In addition, the signature files are needed to increase the probability of removing the virus without damaging the file it is attached to.

There are a number a ways for a virus to be spread. A diskette that is used to transfer files from one computer to another, for example a file shared among co-workers. A file downloaded from the Internet or received via e-mail can be infected. Stores have been known to re-shrink wrap returned software and place it on the shelf. Some viruses have been transferred this way.

You have noticed that anti-virus programs, including Norton AntiVirus, can often repair files that are infected by a virus, but cannot repair worms or Trojans. This article explains why this occurs. In general, a virus can be distinguished from a Trojan horse or a worm by the fact that a virus attempts to infect otherwise clean files. That is, a virus attempts to attach itself to a host file and infect other files when the host is executed or opened. The simplest viruses add malicious code to an existing executable file, and then modify the file to run the malicious code before running the otherwise clean program. The second picture in the following graphic shows how a virus attaches its malicious code to an otherwise clean program.

When AVG Free has designated a file as being suspicious or as being infected by an unknown virus, you can e-mail the file to Grisoft .You can do so directly from the Virus Vault. Use this e-mail address to send files that you suspect of containing a virus, even when AVG Free has not detected any viruses. For additional help concerning virusesc.

Every detected infected object should be moved to the Virus Vault. Within the Virus Vault you can explore the object, delete it, or heal and restore the object if the cure has been implemented already. Also, you can send the object to the AVG Free vendor for in-depth analysis.

In order for a file to be healed, it must be returned to exactly its original form!Because of this, not all files can be healed.

Most organizations who run their own mail server will benefit from the peace of mind offered by a PerfectMail appliance. Please review the following points to determine which PerfectMail appliance is right for you.

Gateway AntiVirus for E-mail (Gateway AV) is the latest add-on security service integrated on the Firebox X and offers the following benefits.