[ProductName]’s icon is shown in the system tray, indicating that [ProductName] Engine is running.
The shield icon means that software is idle.
The green mark on the shield means that some operation(s) is taking place at the moment.
The red mark on the shield means that backup process was interrupted due to error.
Note: Note that when you shutdown the [ProductName] Engine, your running backups will interrupted and remain uncompleted. All scheduled tasks will not be performed until you re-run the program.