If it allows them to select it can only allow them to choose from a list. It has to be able to connect to something outside. And I don't think the other party would listen on all ports.

Or maybe not. I never tried to use it. I know though a coleague here did and was soon blocked by our firewall.

Jenda
Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live.
   -- Rick Osborne

Edit by castaway: Closed small tag in signature