Download this audio codec first:
[Only registered and activated users can see links. ]

Download this video codec:
[Only registered and activated users can see links. ]

restart your computer after that.

And open the videos with this Windows Media Player classic program:
[Only registered and activated users can see links. ]

Any questions can be asked here.

UPDATE

It seems that the videos also work under the VLC player. If you want you can install that instead of the codecs.

[Only registered and activated users can see links. ]