dvdregionfree.exe is a process belonging to Fengtao's DVD Region-free software which allows you to play play movies regardless of region. "This program is a non-essential system process, and is installed for ease of use. "
Non-system processes like dvdregionfree.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues