An instance of the MdoTypeLibRef class represents an external type library that is referenced from one or more Visual Basic projects.
| Interface | Description |
| IMdoModelItem | Maintains properties that are common to many different types of MDO Model objects. |
| IMdoReference | Maintains the relationship between a type library and the Visual Basic projects that reference it. |
| IRepositoryItem | Manages repository objects and relationships. |
| IRepositoryObject | Retrieves repository object identifiers. |
| IRepositoryObjectStorage | Creates and loads repository objects. |