Mozilla/IE Control

You know what would be a neat control?  A wrapper for the IE webbrowser control AND the mozilla brower chumpy.  It would have basically an enumeration that let's you choose which one the control creates, and have it delegate the calls to the control of your choosing.  Maybe a method called IsMozillaInstalled would be nice too.  Really should be easy to create I would think.  Of course, I'm a complete idiot when it comes to COM interop.

The one gotcha I can think of off the top of my head would be handling errors related to Mozilla not being installed or properly configured.  I might give this a shot.  COM interop has been one subject that I've been able to avoid for the most part, and Adam's book has gathered enough dust since I last flipped through it.  Hmmmm...