K-Lite Codec Pack is a collection of codecs and related tools. Codecs are required to encode and/or decode (play) audio and video. 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 99% of all the movies that you download from the internet.
LINK : http://files3.majorgeeks.com/files/1e81d9ddb81fa08481c942a7f794300e/multimedia/klcodec345f.exe