Network Bondage - Port 139
Discipline your network bindings in the privacy of your own home.

Microsoft's networking technology is only required for sharing files and printer services with other Microsoft-based PC's. It is not needed for connecting to the Internet or for using any Internet services. Using it in wide area networking (WAN - like the Internet) situations, dramatically lowers your security by divulging information about you and your computer, exposing Microsoft's weak password protection system to password crackers over the Internet, bringing your machine to the attention of Internet scanners and intruders and making you a target for attack.

  You must understand that Windows is the ONLY program that has ANY business opening and listening on port 139. The most common culprit is one of the many "Evil Port Monitors" that I've made such a fuss about.

One of the most common port 139 opening evil port monitors is "NukeNabber". NukeNabber is not your friend. If you're running it, terminate it then try testing your Shields and Ports again!

If you are not running NukeNabber, but your port 139 remains open, you will need to track down the program that has opened this port.