You should know that if you are installing this card in a non-Dell computer, the Dell installer will not work. You will have to manually update the drivers. Run the installer. You can exit the installation after the files are extracted, although it will exit on it’s own complaining about your hardware if you continue 😉
Right click on My Computer, select Manage. Select the Device Manager, you should see your network card with a yellow question mark show up in he list of devices. Right click on it, select Update Driver… Select Install from a list of specific locations (advanced). In the Include this location in search fiels browse to the extracted driver package, the folder you want to select is called DRIVER (under dell/drivers/R208883). Proceed with the installation and enjoy your new wireless card!