If WirelessKeyView is having issues finding your saved passwords,
go to Tools > Advanced Options > and Check “Use code injection Method (for Windows 7 only)
This should allow it to see your saved network info.
*was tested on WirelessKeyView x64 in Windows 7 64bit*
*also note This tip does not encourage any illegal activities, I use this program for when I forget my Wireless Password, as I assume alot of people do.*