I have sent to and received a email from Black Hawk Down support telling me to open port 17479 so that i can use my p.c. to host online games of Black Hawk Down. This must disable the firewall on this port i guess ( please advise if i have this wrong ! ). Does opening this port leave the p.c. open to hackers e.t.c. ? Thanks. I have also been told that if i go into Zone Alarm options and tick allow server next to the game this will allow players access to the game. Does this leave the p.c vulnerable ???