Microsoft Technet - ISA Server Port Scan Alerts. Easily the most amusing piece of Microsoft documentation I’ve read in a long time.
“When a third friend accesses it, the Web server goes into a momentary “kill me now” loop and fails to respond. During this moment of revered silence, ISA Server decides that the server has gone “beddy-bye” and closes the connection. "
The Old New Thing - the blog of veteran Microsoft developer Raymond Chen, with all kinds of stories about Windows development WTFs. (Raymond Chen has in fact contributed to TheDailyWTF.)