WebHancer modifies your Windows Sockets configuration, binding itself to Winsock so that all packets are passed through WebHancer. Incorrect removal procedures will destroy your Internet connection.
Using Ad-Aware 6 is an incorrect remove procedure, apparently. Or maybe it's time to go update my version of Ad-Aware. Nevertheless, I lost a whole night trying to figure out why I could connect to the Internet but yet couldn't surf around. At least things are working now. Those bastards over at Webhancer should choke on their own intestines or something.