Steam features built-in native support for Dualshock 4 controllers.ScpToolkit is an application for Windows 7 and above.Steam does not support controller configurations for Dualshock 3 controllers natively, however ScpToolkit can be installed to extend this compatibility to PS3 controllers. Additional features such as Toggle and Rapid Fire are also included. Steam will allow you to map controller buttons to keyboard keys, and analog sticks to mouse inputs. Windows 10 and Steam come with built-in Dualshock 4 controller support, Non-Steam games can be added to your Steam library to add controller support to any game or emulator by launching them through Steam. ScpToolkit drivers will also automatically configure your Dualshock controllers to be compatible with emulators such as RetroArch, PCSX2, RPCS3 and more. Or, if your goal is to emulate the Xbox 360 controller for better compatibility like with Windows 7. If you’re using a PS4 controller on Windows 10, ScpToolkit should only be used to fix connectivity issues. Windows 10 with the latest updates should work correctly with Dualshock 4 controllers via USB or Bluetooth.