NOTE: This release is old, for better working drivers with rumble and bluetooth support, look right here.
The Sony PS3 SIXAXIS controller can be used on a Windows PC but Windows XP and upwards would be best. It works as USB HID device under Windows.
Here's the instructions to make it work:
1. Download and install the filter driver (libusb-win32-filter-bin-0.1.10.1.exe). (attached zip)
2. Unpack ps3sixaxis_en.exe
3. Plug the SIXAXIS into your PC.
4. Run ps3sixaxis_en.exe once. A command prompt window will appear for a few seconds.
5. When the window closes, press and hold the PS button on the Sixaxis controller for at least 2-3 seconds.
If you want to see if the controller is being detected:
1. Go to Control Panel > Printers and Other Hardware > Game Controllers.
2. Select the Playstation 3 controller and choose Properties. A dialog window will appear.
3. Move both the analog sticks and press the buttons. The cursor and bars will move in the Axis section and the numbers in the Buttons area will light up.
4. If output is displayed, the controller is properly detected and working fine.