DS4Windows from Jays2Kings (GIT), but recently boganhobo (GIT) forked and updated the DS4 application with the help of Chamilsaan to support Sony's official Bluetooth adapter... meaning you can now use Dualshock 4's headphone jack and touchpad with DS4Windows!
Download: DS4Windows.exe (3.06 MB)
To quote from PCGamer.com on this latest update: "DS4Windows tricks your PC into seeing the DualShock as an Xbox controller, which allows it to work in pretty much any game with controller support.
Now you can have the best of both worlds: the same old DS4Windows support, but with the added benefits of the Sony adapter’s strong Bluetooth range and full use of the headphone jack and touchpad.
Because DS4Windows is an open source project, boganhobo created a project fork to support Sony’s adapter."
Below is a DS4Windows demonstration video, and thanks to KeenGamer.com for the news.