what is BMD Desktop Video?

Just downloaded Resolve 9.1.1 and saw the requirements included BMD Desktop Video, version 9.5 or later.
I can't find Desktop Video in the Support page, and I don't understand what it is.
Any quick explanations? Resolve seems to be working OK without it, unless I unknowingly already got it from the Resolve DVD installation.
I can't find Desktop Video in the Support page, and I don't understand what it is.
Any quick explanations? Resolve seems to be working OK without it, unless I unknowingly already got it from the Resolve DVD installation.