Plus HDV20.03 is a software developer for Windows.
It is reported that the following Windows processes are part of PlusHD Cinema 2.1cV20.03:
If you want to remove PlusHD Cinema 2.1cV20.03 from your computer, just go to Start > Control Panel > Add/Remove programs and select PlusHD Cinema 2.1cV20.03 from the list of programs.