I thought there was a software you could download that makes it compatible :-?
You can, for the WIRED controller.
Crussell, as far as I am aware, the regular wired controller is that.
The USB bit is just a charger. To get the wireless controller to work on Windows, you need the USB hub... which accepts the wireless connection.
I agree, it is a bit wierd. The wireless controller was obviously just designed to be wireless I presume. Would have been better if the charger slot could turn into a wired controller. Exempli gratia, you take out the batteries if you want and run it as wired, instead of wired-for-charge-but-still-wireless