|First, Just an FYI - |
In Vista (& Win7), the built-in wireless scanning utility is called WLAN AutoConfig - The WLAN AutoConfig have replaced Windows XP Wireless Zero Configuration (WZC), also known as Wireless Auto Configuration. They all do the same thing - detect the available wireless networks and automatically connect to the most preferred wireless network.
Now as to the question you posted ...
I know nothing about commview analyzer but if WLAN AutoConfig isn't detecting networks when you know are available, it may have been disabled for some reason. To correct this, open services.msc and re-enable WLAN AutoConfig service.