winsock failed to initialize

When cleaning up a fakealert virus the other day on an XP machine, I had successfully cleaned it, but none of the network interfaces could get an IP address. My only real clue was a simple dialog box that said "winsock failed to initialize"

Luckily, I found this utility:

http://www.snapfiles.com/get/winsockxpfix.html

I ran it, and it fixed my problem very easily.