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
PS3 Controller on Windows 7 x64 (Updated) - YouTube
MotioninJoy for Windows - Download it from Uptodown for free
GitHub - XPanniX/MotioninJoyOffline: Use your PS3 Controller on your PC using MotioninJoy.
Hardcore Gaming 101 - Blog: PS3 Sixaxis on a x64 Windows PC