When you open the program, a window will pop up requiring you to register. You can click "Register" button to activate the software. Or you can click on the menu button in the upper right corer and tap on "Register".
Some components may still be running when you close the program. You need to open Task Manager to force close the task and launch it again.
Due to Apple's restriction, I’m afraid that it is currently impossible to restore encrypted iTunes backup. We are trying hard to add this feature but it still needs enough time.