Ability to close the activation window

This idea is spawn from the problem reported from this thread (http://community.norton.com/t5/Norton-Internet-Security-Norton/GUI-crash-NIS-19-5-0-145/m-p/650799), where the user killed Norton by attempting to close the activation window using task manager.  I suggest a clear way to close the window through either the "x" close button or the cancel button.