With Vista Codec Package installed, you won't need to install any other codec or filter. Many user suggested default settings are implemented. It does not contain a media player. It does not associates filetypes. With this package installed you will be able to use any media player (limited only by the players capabilities) to play DVD's, movies and video clips of any format. Streaming video (real and quicktime) is supported in web browsers. Visit the homepage to get a 64bitAddon which enables xvid, divx and DVD playback in Vista's MediaCenter.

Download
http://www.msfn.org/board/index.php?s=&sho...ndpost&p=459562

More Info
http://www.msfn.org/board/index.php?s=&showtopic=66826

It's just yet another codec pack. The main difference is that it doesn't come with any media player (rely on WMP11) and does not associate any file type.

I personally prefer K-lite though (since playing RMVB using Vista COdec Package is extremely slow)