Have you tried vlc media player? I would think any player with the right codecs installed should be able to play it. It shouldn't need that specific codec to play.
The only other thing i can suggest would be to download the klite codec pack and see if it will play in media player or others. They say that the klite codec will make 99 percent of the videos play correctly.
http://www.free-codecs.com/download/k_lite_codec_pack.htm