SMAC is a powerful, yet easy to use MAC Address Changer (Spoofer) for Windows 2000, XP, and 2003 systems, regardless of whether the manufacturers allow this option or not. Features: Change MAC Address in 3 clicks, validate MAC Address, generate Random Address, view MAC Address, view complete network adapter information, 1-click network adapter restart, filter active and inactive adapters, load MAC Address List*, show MAC change history.