Norton Antivirus 2007 * Automatically removes viruses, Trojan horses, and worms. * Checks incoming and outgoing email attachments for viruses. * Automatically scans incoming instant message attachments for threats. * Checks compressed file archives for viruses. * Keeps dangerous Internet worms out, blocking them before they infect your system. * Automatically downloads updates to protect against new threats. * Automatically scans for viruses upon downloading updates. * Uses smart technology to detect emergent worms and other new threats without waiting for updates. * Disinfects your system prior to installation, starting you off with a clean, virus-free computer. Norton AntiVirus 2007 is compatible with the following operating systems: Windows XP Professional Windows XP Home Windows XP Media Center Edition 2005 Windows Vista NOTE:it's not available to the public yet.