Windows XP/2000
If you have TCP/IP installed, run ipconfig/all from a Command Prompt window.
(click Start, then Run, then type cmd in the text box.)
Type in ipconfig/all in the Command Prompt Windows.
The 12-digit Physical Address is the same as MAC address
*You will need to register all MAC addresses in cases where you have both wired and wireless interface in your system.Coming Friday 11/14/2008!!!