Can’t Join To Domain

I am trying to add a laptop to the domain with a fresh copy of Windows XP SP3. When I go to add the pc to the domain both the Domain and Workgroup field is grayed out. The top says “You must install networking before you can change this computer’s domain membership.”
I have the LAN driver installed and successfully connected to the internet. I also have a wireless card installed.

Does anyone know how to fix this issue?