Search the Soft of Emulator AC800F "ntsc.exe"
Voted best answer
You can start emulator by typing http://127.0.0.1:8888/ in internet explorer or any web browser and emulator will start. why you need ntsc.exe ? if you are not able to get emulator running check for "Freelance controller Emulator service" automatic and started
Recommended to go through freelance getting started manual
By the way you can find NT_service.exe @ C:\Program Files\ABB Industrial IT\Freelance\exe.