McAfee VirusScan 2005 [Old Version] Prevents viruses when emailing, downloading and surfing Quickly detects and helps delete potentially unwanted applications (PUPs) like key-loggers, Web dialers, pop-ups and adware that can rob personally identifiable information or slow your Web surfing. VirusScan scans Instant Message attachments sent via AOL Instant Messenger, Yahoo Messenger and Windows Messenger. Whenever new viruses attack, McAfee VirusScan automatically updates itself with the latest virus definitions (DATs), silently in the background without interrupting your work. More efficient at handling today's larger file sizes (e.g., MP3s, digital photos), VirusScan automatically scans inbound (POP3) and outbound (SMTP) email and email attachments for most popular email clients.