I really don't understand...You can't. Only VLC 2.1.0 and later support WASAPI.
1) where I can get 2.1.0 and later version of VLC?
2) why to me the last is 2.0.8?
3) exist a 64bit version of 2.1.0 version?
I really need wasapi on my vlc because I watch to concerts movies mostly.