IE Toolbars

How can i add a button to the main toolbar in IE. I see that RealPlayer added one, how do you do this?

I figured it out on my own. It uses the registry for anyone who wants to know.

Thanks all

If u dont mind, where in the registry?
Thanx

See here:
http://msdn.microsoft.com/workshop/b...als/button.asp

Thanks a lot Dash