Follow these steps to resolve the issue:

Check for .dll files

1. Go to C:\Program Files (x86)\iTunes and C:\Program Files\iTunes and look for .dll files.
2. If you find QTMovie.DLL, or any other .dll files, move them to the desktop.
3. Reboot your computer.
   Note: Depending on your operating system, you may only have one of the listed paths. 

Uninstall and reinstall iTunes

1. Uninstall iTunes and all of its related components.
2. Reboot your computer. If you can't uninstall a piece of Apple software, try using the Microsoft Program Install and Uninstall Utility.
3. Re-download and reinstall iTunes 11.1.4.