It is very easy to disable a Stellent component manually. Sometimes when you install a new component you may find something is wrong and the server does not restart. Other times you might be developing the component yourself and the server again fails to restart. On a variety of occasions you will not even be able to fire up Component Wizard. This process also comes in handy when content server is installed on a remote machine and you do not have access to be able to pull up component wizard.
That is where this trick comes in. Find this file: /config/components.hda
Remove the name and location entries for the component causing the issue. I suggest storing those strings somewhere else, perhaps another text file?
Now attempt to restart your content server and all should be right with the world once again.