Download the SCP driver packaged here. You can get it elsewhere I don't really care where. The link is from my one drive.
Under program files, least this is where I placed mine, you can place the extracted folder anywhere.
I create a folder called PS3 c:\Program Files\PS3
Place the extracted zip file in that folder - the default extracted name is "SCPServer"
Before proceeding plug in your PS3 into the USB port on your computer. This is needed to install the device drivers for it.
Go into the "BIN" sub folder and you will see several files and exe's like so.
First EXE you want to run is "SCPDriver.exe"