The Windows Connect Now (WCN) feature lets you export and import your wireless network profiles via a USB flash drive. This can come in handy when setting up multiple PCs.
To export profiles in Windows XP SP2 or SP3 and Windows Vista, use the Wireless Network Setup wizard:
Click Start > Programs > Accessories > Communications > Wireless Network Setup.
Then to import the wireless network profile, insert the USB flash drive into a computer. On the AutoPlay dialog, click the Connect to a Wireless Network using Windows Connect Now shortcut or the Wireless Network Setup Wizard shortcut.
If the AutoPlay menu doesn’t appear, you can manually import by running the SetupSNK.exe program on the flash drive’s root directory.