File Associations
Associated file types
  Associated archives will be automatically opened with TUGZip when double-clicking on an archive in Windows. To associate an archive with TUGZip, simply check the checkbox on the left side of an archive type in the list. Click on any item in the list to view its information or change its icon.
 
Backup
  Clicking this button will backup all association settings to a registry file.
 
Apply to all users
  This option specifies whether the associations should be stored in the HKEY_CLASSES_ROOT or the HKEY_CURRENT_USERS section of the registry. If set, the HKEY_CLASSES_ROOT section is used. If another application has changed the associations, you might have to set this option since most applications uses the HKEK_CLASSES_ROOT section. Storing the settings in the HKEY_CLASSES_ROOT section has higher priority than the HKEY_CUYRRENT_USER section. If you're not a computer administrator you can probably not apply your settings for all users. Windows 9x users should always keep this option set.