Kaspersky Internet Security 6.0 [OLD VERSION] Kaspersky Internet Security 6.0 works under Microsoft Windows 98, Me, NT Workstation 4.0 (Service Pack 6a), 2000 Professional (Service Pack 2 or higher), XP Home Edition, XP Professional (Service Pack 1 or higher. Exclusive hourly anti-virus database updating for the ultimate protection iChecker and iStreams technology checks files up to three times faster than other popular anti-virus products Two tiered e-mail protection with proprietary scanning technology to monitor all incoming and outgoing e-mails and mail databases Automatic detection over 900 types of compressed and archived files and disinfection of ZIP, ARJ, CAB and RAR format files