>>It *must* be possible - *every* MAC address shows up in IPCONFIG /ALL...
>
>That is what is so frustrating. I, too, know darn well there is a reliable way, but danged if I can find it in MSDN or anywhere else.

I may have something for you to check out... But it requires VC 6.0

http://www.codeguru.com/network/ViewNIC.html

HTH

-- Chris