Yes, you can.
IN WINDOWS 7 and VISTA C:\Users\<USERNAME>\Saved Games\Assassin's Creed Brotherhood\Saved IN WINDOWS XP C:\Documents and Settings\<USERNAME>\Application Data\Ubisoft\Assassin's Creed Brotherhood\Saved
no you cant you can only play it in windows XP
Yes
no you can.. AC 3 just support Vista,7, and 8
Yes.
Plug usb end directly into your usb slot on the pc, download the drivers from Microsoft's site, and then play a game that is either made to use the controller properly, i.e. Assassins Creed or Crysis, or use a joy/key app, like Joy2Key to set up buttons to correspond to keyboard buttons.
the game was made to run in windows 95/98 although there is a xp patch around.
Yes, it runs fine on XP.
you can only play on windows xp or higher.
No games were ver written explicitly for Windows 2000. Those that do run on it should also run on Windows XP without any problems.
how about u google it?
Yes