To facillitate internal testing of Eclipse with multiple XL windows simulations all on one PC, the ability to configure the port setting via a command line argument was added.

When debugging on one PC, all instances of the windows simulation use the Loop Back IP address. The ability to set the port is therefore required to distinguish between instances and allow each instance to establish their own socket connections with the Eclipse application.

Since this is for internal use, the convention is very rigid. The keyword "port" is used, followed immediately by the port number with no leading space.

If the command line argument is used, both the Debug Window and the Application window will have "port:nnnn", where n is the port number, appended to their title names.