How to disable "ffdshow" or how to disable "ffdshow" for a specific game?

Hi all. I have several questions:

1. I installed K-Lite Codec Pack 1.7.1.0 Full in standard mode.
To run one game, I need to remove the setting - "Don't use ffdshow in".
How should I do it?

2. Do I need to configure and optimize additionally K-Lite Codec Pack 1.7.1.0 Full for games?

I need more information.

Which game?
What problem are you currently having with the game?
Why does the game need ffdshow? For which audio or video format?

ffdhow is not included with the Full version. If you installed ffdshow manually then you can access its settings with the Codec Tweak Tool.