At work we have a Java Applet that we use to transfer files over the web. The problem we're running into is that since the Java Applet uses a pretty high port number, a lot of our remote locations are running into firewall issues. Sometimes we'll get lucky and the location's tech dept will open the port for us, but other times we're just S.O.L.
I was wondering if a java transfer applet could be run over port 80 or some other standard port which is generally open by default firewall settings. I'm sorry if this is a dumb question but I'm not very familiar with java and if we could set the applet to use a common port it would relieve a lot of headaches.