The basic software required to use a PS3 duel-shock 3 controller for PC games.
While some games support using your PS3 controller in XBOX mode (done via ds3 tool) many games don't, and so you need to use xpadder, with some very obscure binds I set. You can change these at your leasure.
The basic usage is as follows:
Run DS3 tool with controller connected via USB A-C cable, click 'Driver Manager' and install the pertanant drivers.
Once complete return back to 'profiles' and make sure the top radio box is active, if so, press the 'options' button just beside it, then just save.
Now open up xpadder(it may ask you some shit, just okay it off) then test your sticks to ensure they correspond to buttons on xpadder, if so, then all you need to do is set your binds on the game and you're good to go!
Just to clarify, I did not make any of this software, I found it, and have it here at your convenience, I take no credit.