I've got a machine running XP (pro IIRC) and it sits in a showroom so visitors can access our website.

I need to be able to stop them doing anything else.

I've been able to control the browser so that it can only get to our website but how (if at all) can I prevent a more knowledgeable user from running programs, using shortcut keys (Windows/E, Windows/R, etc) or even Ctrl+Alt+Del?

Unusually I need to be able to say that the only program which a user is allowed to start is Internet Explorer. In fact, they don;t even need to do that; I'll start it for them! Actually, all they need to do is use IE which is already running and shutdown the machine!

I suppose I could remove the keyboard which would certainly slow them down a bit!

It doesn't have to be a perfect solution; just one which would stop an enthusiastic youngster!