K-Lite Codec Pack is a collection of codecs, DirectShow filters and tools. Codecs and DirectShow filters are needed for encoding and decoding (playing) audio and video formats. The K-Lite Codec Pack is designed as a user-friendly solution for playing all your movie files. With the K-Lite Codec Pack you should be able to play all the popular audio and video formats and even some rare formats.
The pack is able to detect broken codecs and filters on your system, and remove them for you. It is a very complete package, containing everything you need to play your movies. The K-Lite Codec Pack is compatible with Windows 2000, XP, 2003, Vista, and Seven.