I am behind a firewall/proxy at school, and the only port open is 80, the HTTP port.
Now I want to write a chat program to connect to a server outside our local network and beyond the firewall, so I assume I'll have to use HTTP to accomplish this.
What components do I have to use (I have FPiette's and the standard Delphi 4 Internet components) and how do I write my program?
(P.S: This program should not interfere with the Internet Explorer if possible. We connect to the proxy at 192.168.0.1:80)