If you ever had a video file where you can only hear the sound but can not see video Or the other way round, only video and no sound?. Most common cause for this is missing codec from your windows system. Codec Installer help you understand which codec you need and it lets you install all of them in minutes.
Codec Installer is a Windows program that detects the Audio and Video codecs installed on your system, analyzes files to understand which codecs they require and suggests you to install them.
Check out the features tour for usage examples and screenshots of the program