Click the server or publishing point from which you want to remove a plug-in.
In the details pane, click the Properties tab.
In Category, click the plug-in category.
In Plug-in, select the plug-in that you want to remove.
Click the Remove button.
The plug-in status will change to Disabled-Pending Removal. The plug-in will be removed from the list after Windows Media Services service has been stopped and restarted.
Note
You cannot remove the last instance of a system plug-in. If you attempt to do so, a message is displayed, and you can choose to disable the plug-in instead. Disabling a system plug-in removes features and can affect the ability to stream content from the server.