ffdshow can forcibly lock itself to certain applications and games. This can result in poor performance or other issues while playing. One of the biggest problems was The Elder Scrolls: Oblivion; people had instability and performance issues. In such cases, it's a good idea to disable ffdshow. (ObliVion is one of several games.that have now been added to the Ignore List of ffdshow in the releases that followed.)

Right-click on the playing video and select Filters> ffdshow Video Decoder. Click on Info & debug from the menu on the left. Here, check whether your application is already mentioned in the text bar next to Don't use ffdshow in. If it doesn't, click Edi t and then Add to add your application. Browse to the location of the program and select the EXE of the application. Click Open. In the earlier menu, you can also use a similar procedure to mention which programs you want to use ffdshow with as well.

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