Seeing that virtually every modern program uses an install utility that installs or updates files; these utilities may also record data in the Registry and update INI files or other essential text files. It is useful given that a programmes' companion uninstall utility doesn't always precisely reverse the effects of the install utility, or when a newly installed program causes existing applications to fail, as the record of exactly what the original install utility did, provided by InCtrl5, allows users to restore their system.