This wireless key has been installed on a laptop running XP. This laptop had worries Wi connections (regularly cut). So I installed the wireless key on a USB port of the laptop. Installing the software supplied on CD very easy and hassle free. Once done, the search key and quickly finds the wireless network in my box (Livebox2) and once the WEP key informed ... I'm connected to the internet seamlessly ... In short, I really recommend this key that because of its small size can remain on the PC without hindering the user.