Do you have a lot of different network credentials to remember and multiple computers or users that use them? Using the built-in Windows 7 backup tool you can save your network passwords to a USB stick automatically. This will work regardless whether are using a WEP, WPA, or TKIP security code to connect to your network or trying to connect to a friends network.
How To Save Wireless Network Settings To A Portable USB Drive
Click the Windows Start Menu Orb then Type manage wireless into the search box and Press Enter.
Right-Click the network you want to back-up and Select Properties from the context menu.
In the connection tab of the properties window, Click Copy this network profile to a USB flash drive.
The setting backup tool will appear, just Click Next to complete the backup.
Now just pop that USB stick into a computer and Select Connect to a wireless network when the AutoPlay pop-up appears.
Additionally you can access the network settings from the text file saved on the USB stick in the SMRTNTKY folder called WSETTING.txt.