Vista Codec Pack allows the end-user to play any media file with his favorite media player. This pack allows for playback of avi, realmedia, flv, swf, and quicktime files, as well as DVDs. The pack works well with most browsers and enables them to play streaming video files. Although the creators of the Vista Codec Pack recommend using the default settings, you can easily change and adjust some of the options like turning Haali and FFDshow on and off, or removing specific components during or after the installation.
During the installation the pack automatically detects, and if needed, removes previously installed conflicting codec packs..