Just wondered how you guys learned the Windows API. I'm reading Programming Windows, Fifth Edition by Charles Petzold right now. So far it seems to be a pretty decent book as far as programming goes.

Microsoft’s Project Zenith brings a ready-to-code Windows experience to developer PCs, with local AI support and ...

So I'm trying to port a service to windows server 2003 from NT and part of it is replacing a routine that used to use netBIOS to get the machine's MAC address with stuff from the IP Helper Functions.