Here at my office, all our ports (except 80 of course) are blocked
by the firewall. In response to this effort, I have a simple Java app that allows the developers here to surf site that aren't on Port 80. Now we are hoping to extend that idea to file sharing.
Here is the idea so far:

We have downloaded the Phex JAR to a Java host outside the firewall... and written a servlet that has successfully connected to the Gnutella network on Port(s) 6346. The goal is to write a web interface that allows searching the Gnutella network, and downloading the files to that java host. Once the files are downloaded to a directory on the external java host, they would become available to the rest of the Gnutella network... but more importantly, the developers here would be able to download them through Port 80.

Here is the servlet service method code thus far:

............
public void doGet( HttpServletRequest req,
HttpServletResponse res ) throws ServletException
{
try{
out = res.getWriter();
try {
ServiceManager.getListener().startup();
}
catch (Exception ex) {
out.println ( "error getting listener: " + ex );
}
ServiceManager.getNetworkManager().init();
ServiceManager.getManager().startJobsRunner();
out.println("Service Manager initialization complete.");
}
catch (IOException ex) {
out.println ( "error getting writer: " + ex );
}
}
...............

It's not much... but it's a start. If anyone has any ideas or code that would help us out, it would be greatly appreciated!!!!!!!

Thanks in advance.
Dave Cain

But its true if you only have port 80 I am not sure if the Java VNC in an applet needs more ports than that 80 ? Also check Thight VNC...

Anyhow but it is a great Idea you mention, HTTP interfacing allows fast and complex User Interfaces and the standart adherance is also fine.
I guess you are looking at quite some project though...