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Do you use Windows Zero Config as your WLAN Client Management tool of choice? Perhaps you shouldn't!
Friday, January 9, 2009 at 7:11PM 
If you're an Enterprise user or any user that uses Windows Zero Config with WEP or PSKs. Or if you're a user who forgot or lost your WEP or PSK, this video is for you!
The WZCOOK application can be delivered via a USB stick and launched on a workstation and within seconds revealing your networks WEP or PSK keys.
In the case of an attacker exploiting a system with WZCOOK, specific to WPA or WPA2 networks using a pre-shared key authentication, are also vulnerable since there is no regular key rotation mechanism. WPA or WPA2 networks using IEEE 802.1X authentication and an EAP type are also vulnerable to attacks when the PMK has been revealed, but it is limited to a single workstation and only for the duration of the current authentication session.
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Fig 1
My Video Link: (click full screen for better viewing)