How do I remove an unwanted audio codec?

[jonm]

I'm sure I should know this... but I'm stuck. I've got an audio codec being used and I don't know where it came from, and there doesn't appear to be an uninstaller for it. So how do I go about removing this codec?

This is on Vista, by the way.

Thanks,

Jon.

[sub]

You can use the directshow filter manager from http://www.softella.com

[jonm]

Many thanks sub.