correct, you must use the installation media type for your key. if you have a dell laptop for example the windows key will only work with a dell oem windows disc. If you have a retail version of windows you must use a retail product key as the one printed on the laptop will not work.
Great, I was just about to ask if I can use my OEM vista business on a dell laptop that needs a new hdd to install Vista Starter. I didn't know if all versions of vista are on the dvd.