MACMask - Version 1.4 1. Overview MACMask is a powerful, yet an easy-to-use utility tool that changes (or masks) a MAC Address of network adapter for Windows NT, 2000, XP, and Server 2003 systems. 2. Features and Benefits 2.1 Features -. It can change (or mask) a MAC Addresses of a network adapter. -. It can scan and display all computers existing on LAN. -. It can change a MAC addresses to one with a real vendor name. -. It can lists mac addresses already used for changing. Of course, it can delete mac addresses history.