>I could but that is too messy and I don't like the COMMAND window flash across the screen. The OCX from CompuServer that Rick Bean alerted me to does the trick flawlessly.

Based on original solution (the MAC address is only part of the GUID):

function GetMAC
local lcStrucGUID, lcMAC, lnLoop
declare integer CoCreateGuid in Ole32.dll string @lcGUIDStruc

lcStrucGUID=space(16)

if CoCreateGuid(@lcStrucGUID) # 0 then
   return ""
endif
lcMAC = ""
for lnLoop=11 to 16
	lcMAC = lcMAC+right(transform(asc(substr(lcStrucGUID,lnLoop,1)),"@0"),2)+"-"
endfor

return left(lcMAC,len(lcMAC)-1)

It works in my system (got my NIC MAC perfectly).

bye