Ut Video Codec Suite contains tools that provide advanced decoding and encoding algorithms for the smooth playback of multimedia content on your computer.
It does require a small leap of faith that leaves this one for advanced users. It was programmed in Visual Studio and is based on the QuickTime SDK.
Once installed, there aren't a lot of options. You can save the configuration from the codec itself or choose to ignore the codec settings. You can also prioritize the work threads from low to high, which can be significant with stuttering playback, for example. That's about it.
Ut Video Codec Suite is a pretty simple codec solution that could fix problems with video playback. Still, it lacks information on what it's installing or any options to configure those.