Has he tried reinstalling the game?if files have been deleted then doing this should put them back.I think this is a movie/audio dll file and maybe a windows .dll so maybe running system file checker may help.
Best phone camera 2017
Stunning new film posters by Hattie Stewart, Joe Cruz & more
iPad Pro 10.5in (2017) review
28 astuces pour profiter au mieux de votre iPhone