You already know how to setup virtual wireless on Windows 7 using Virtual Router Manager. Now here is a useful freeware tool WirelessKeyView which instantly recovers wireless network keys (WEP/WPA) stored in your computer.
WirelessKeyView recovers all wireless network security keys/passwords (WEP/WPA) stored in your computer by the ‘Wireless Zero Configuration’ service of Windows XP and by the ‘WLAN AutoConfig’ service of Windows 7 & Vista. It allows you to easily save all keys to text/html/xml file, or copy a single key to the clipboard.
Download WirelessKeyView to recover Wireless Network security keys.