Some extra info.
Maybe you already found these links. They talk about WLAN being hacked by a wardriver and MS doing some weird magic.

http://forum.tecchannel.de/forum/thread3544.html (in German but not to difficult to read)
http://www.the-scream.co.uk/forums/t21559.html
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Mart

- Chuck Norris once sold ebay to ebay on ebay.