Regzor is a Windows registry editing utility specialized for editing HKEY_CLASSES_ROOT section, that describes registered file extensions and associations. Regzor allows you to create, edit and delete file types/association-related registry records, change file extensions, descriptions, icon files and indexes, add, edit or remove file actions. With Regzor you can easily spot any errors in your HKEY_CLASSES_ROOT section - the errors are shown as icons in the main table, and you can fix them easily. You also can export and import the file type information to *.reg files. Global Undo allows you to cancel your changes at any time, without updating the registry.