MotioninJoy for Windows - Download it from Uptodown for free
Steam Community :: Guide :: How use the PS3 Controller
MotioninJoy Free Download
I don't know if anyone has heard of this, but there is an awesome offline replacement for Motioninjoy called BetterDS3 (for playing PC games w/ Dualshock 3) : r/Games
How to play every classic game on your PC: Emulators 101 | MyGaming