VBScript to get MAC Address using WMI: strComputer = "." Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2") Set colItems = objWMIService.ExecQuery ("Select * from Win32_NetworkAdapter") For Each objItem in colItems GetMACAddress = objItem.MACAddress Next Works under Win PE 2.0.