I would like to recommend mplayer for windows for any type of video file you can't play properly. You can download it here: http://hchrist.speed.planet.nl/mplayer.php
It is very easy to use, you just drag and drop your videofile on the mplayer icon and mplayer plays it. You can go forwards and backwards in the video with the arrow keys.
The benefit of using mplayer as opposed to using another videoplayer is that mplayer uses it's own decoding libaries, so even if your pc's codecs are FUBAR , you can still use mplayer.
