For the record, 64bits applications will install in the folder C:\Program Files\Mirillis\Action! and 32bits applications will install in the folder C:\Program Files (x86)\Mirillis\Action!, so quite the opposite of what your page Setup Intel Quick Sync on PC with NVIDIA Optimus technology @ http://mirillis.com/en/products/tutoria ... setup.html says.
That being said, I have a 64bits operating system, and Action! installed in \program files (x86)\ and once I run Action! I see this:
Which means... the frontend program is 32bits, and it loads a 32 and 64 bits processing part? Care to explain?