All this information can be very useful for problem solving purposes. It can also include useful information about your system. This allows you to generate a very detailed list of all installed codecs installed on your computer. If you are experiencing a sound problem that affects multiple programs, then the first thing you should try is to re-install your sound driver. Sound problems can have many different causes. This fix is only available when this specific problem is detected. This fix will restore those required Registry keys. If certain Registry keys are missing, sound will not work in most programs. The fourth fix is one for a specific sound related problem. This is helpful if they somehow got removed. The third fix will re-register the base DirectShow filters of Windows. The Codec Tweak Tool can remove the invalid references. Those keys can for example get left behind when a codec is not properly uninstalled. Such invalid references are Registry keys that for example point to non-existing files. This will perform a scan of the Windows Registry looking for invalid references to codecs and filters. The first two fixes detect broken VFW/ACM codecs and DirectShow filters.

If any of the information below is unclear or insufficient, then please let us know.

Detailed help is available for each individual function. Below is a short overview of the functionality that this tool has to offer.

This tool is a Swiss army knife for managing codecs and codec settings.

Codec tweak tool download