Norton 360 Premier Edition - ( v. 3.0 ) - complete package Specs: 3 PC in one household, Complete package, Microsoft Windows Vista, Microsoft Windows Vista Business SP1, Microsoft Windows Vista Ultimate SP1, Microsoft Windows Vista Home Basic SP1, Microsoft Windows Vista Home Premium SP1, Microsoft Windows XP Home Edition SP2 or later, Microsoft Windows XP Professional SP2 or later, Microsoft Windows XP Media Center Edition SP2 or later, 300 MHz, 3.0, CD-ROM, VGA monitor, 300 MHz, Windows, Internet Explorer 6.0 or later