| Horde_Dav_Auth | An authentication backend for Sabre that wraps Horde's authentication. |
| Horde_Dav_Calendar_Backend | The calendar and task list backend wrapper. |
| Horde_Dav_Collection | A collection (directory) object. |
| Horde_Dav_Contacts_Backend | The address book backend wrapper. |
| Horde_Dav_Exception | Base exception class for Horde_Dav. |
| Horde_Dav_File | A file object. |
| Horde_Dav_Locks | A locking backend. |
| Horde_Dav_Principals | Backend implementation for listing and managing principals (users and groups). |
| Horde_Dav_RootCollection | A collection (directory) object for the root folder. |
| Horde_Dav_Storage_Base | Base class for storage backends. |
| Horde_Dav_Storage_Sql | Implements an SQL based storage backend. |
| Horde_Dav_Translation | Horde_Dav_Translation is the translation wrapper class for Horde_Dav. |