Hello to everyone! I looking for drivers and manual for A4Tech Wheel GamePad GP-11. It have 8 buttons (6 buttons + 2 shoulder buttons), but as I understand it - without a driver it can use only 4 buttons under DOS?

And second strange thing (and why I looking for manual) - wheel under buttons. I try it on modern windows with Gameport -> USB adapter, and it looks like it duplicates a buttons press. Which buttons - are selected by the switch beside wheel. Now i try to understand, this is normal functionality or with special driver it will do something else?