Registry Cleaner

   Registry is the central database of Windows used to store settings and other important information for applications and the operating system itself. As you work on your computer, install and uninstall applications, amount of data stored in registry grows. After a while, obsolete data accumalates and registry becomes cluttered. Obsolete registry entries refer to invalid locations on your computer and waste your system resources.
   Registry Cleaner tool of CT-Net Complete Optimizer successfully locates invalid registry entries. You can significantly enhance your computer's performance by cleaning obsolete and invalid registry information.
   Following registry entry types are searched for obsolete entries:

Shared DLLs

   DLLs (Dynamic Link Libraries) are files storing some functions that applications use. DLL files can be shared by many applications to save memory and space.
    Information about shared DLLs are stored in registry. Once the installed applications are moved to other locations or when the uninstallers do not work correctly, registry items pointing shared DLLs become obsolete. If this type of shared DLLs exist in your registry, Registry Cleaner tool will find them.

Orphaned Fonts

   Registry contains information about all fonts installed on your computer. If the font files are moved, deleted or uninstalled incorrectly, information stored in the registry becomes obsolete. This will cause problems in the applications using fonts. Obsolete fonts should be cleaned regularly to make your system work properly.

Orphaned COM Objects

   COM (Component Object Model) stands for reusable objects among applications in Windows. They share common functionalities. Every COM object should be defined in registry for applications to use them. If the reference of COM objects in registry are not correct, they become invalid and cannot be used by the applications.

File Types

   Some applications register special file types during installation, so that registered file type is associated with that installed application. For instance, Windows associates "*.txt" files with notepad. If an application is moved, deleted, or uninstalled incorrectly, Windows will be confused while opening its associated file type. Registry Cleaner will find this type of invalid entries in registry.

Icons

   All applications, text files, image files, data files have their associated icons. Icons are useful to visually identify a file. If the icon file is deleted or moved to another location, no valid icon will be shown with that file. You can use Registry Cleaner to locate these entries that are no longer pointing to valid icon files.

App Paths

   Location of executable files are stored in registry. Usually, this information is inserted into registry during installation process. This is used by the operating system, so that Windows will know where each application is located. When the applications are not uninstalled correctly or executable files are moved to other directories, their information in registry becomes obsolete.

Help Files

   Help files are registered on application installation. Help files in registry sometimes become invalid due to erroneous uninstallers, or moved/deleted help files. These entries in registry are useless and can be safely deleted.

Activex

   Similar to COM objects, Activex files store common functions for applications to use. References to Activex files are created in registry to make them usable. If the file referenced in registry does not exist, this Activex entry is invalid and can be cleaned.

Sounds

   You can assign sound files to various Windows events, like Windows start or exit. Some sound files are also associated with applications running on Windows. If a registered sound file is deleted or moved, system will be confused while trying the play sound file with the associated event. You can safely clean registry entries pointing invalid sound files.

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