NotificationController.dll is a Windows OS file that is located in the System32 folder. When it is loaded files like msvcp110_win.dll, msvcrt.dll, VEEventDispatcher.dll, api-ms-win-core-util-l1-1-0.dll or several other system files may get loaded. If one of these files is corrupted or missing, NotificationController.dll won't be loaded and it could throw up an error.