If you have started the server by double clicking a Diamond application file, that file is selected when the server starts. If you have started the server by double-clicking WS32.exe, or you want to change the selected application, click File. This gives you a drop-down menu that lists the most recent application files you have selected. Double-click one of these applications to select it. If the application you want to run is not listed there, click Application to bring up a file selection window. You can also click 
to do the same thing.
When you have selected an application, its name appears in the server’s title bar.
If the option Run application when selected has been ticked, the application starts running immediately.