Applications can use the Windows taskbar notification area to display an icon for various purposes, often as a replacement for the usual minimized button on the taskbar.The functionality is simpler than most people realize, involving: * adding/removing the icon in the taskbar notification area * showing a pop-up ToolTip * showing a pop-up balloon ToolTip * changing the icon used to display in the taskbar notification area * notifying the application when the icon or the balloon ToolTip is clicked on.