On Startup Tab:

The "Initial state" option determines whether Window Tracker should startup enabled or disabled.  If the "Start-up with Windows" box is checked then Window Tracker will automatically start when you start your computer.  If the "Start Minimized to Tray" box is checked, then when Window Tracker is started it will be hidden, you can open it by double clicking the system tray icon.  You can enable or disable the Splash Screen, or Taskbar Target here also.

The Sounds Tab:

If the box is checked on this tab then Window Tracker will play a sound whenever it closes a window.  You can select a sound by using the "Browse for sound button"

If you press the Browse button then the dialog below will appear for you to select a sound located on your hard drive.

Note: The Open dialog may look different on you computer, these screen shots are from Windows2000.

The Listicon Tab:

On this page you can select what icon you want Windows to display for .wnl files