The world's most trusted antivirus solution* Symantec's Norton AntiVirus� 2005 is the world�s most trusted antivirus solution.* It removes viruses, worms, and Trojan horses automatically�without interrupting your work. New Norton� Internet Worm Protection blocks certain more sophisticated worms (such as Blaster and Sasser) before they enter your computer. Norton AntiVirus can also detect spyware and other non-virus threats. Key Features  NEW! Norton� Internet Worm Protection stops certain damaging Internet worms at their attempted point of entry. NEW! QuickScan tool automatically searches for and removes viruses whenever new virus protection updates are downloaded. ENHANCED! PreInstall Scan quickly detects and removes infections that can interfere with installing and launching Norton AntiVirus. Automatically removes viruses, worms, and Trojan horses. Scans and cleans both incoming and outgoing email messages. Blocks viruses in instant message attachments. Detects spyware and certain non-virus threats such as adware and keystroke logging programs. Scans compressed file archives before you open them and risk infecting your computer. (Available only on Windows� XP/2000 Pro.) Downloads new virus protection updates automatically to protect against new threats.* Worm Blocking and Script Blocking can detect new threats even before virus protection updates are created for them. *Twelve months of protection updates included with purchase of Norton AntiVirus 2005. ( does not matter when installed you still get 12 months of protection )