Getting started (Outlook auxiliary reference)

The Outlook Auxiliary Reference contains conceptual content and reference documentation for four sets of APIs, code samples, and a redistributable installer that allow developers to extend and integrate with Outlook. APIs in this reference are exposed by Outlook for extensibility, outside of the Outlook object model.

If you are new to developing solutions for Outlook, see Selecting an API or technology for developing solutions for Outlook to identify the APIs and technologies that are most appropriate for your needs. For specific information about the Outlook object model, see the Outlook VBA reference. For specific information on Messaging API (MAPI) supported by Outlook, see the Outlook MAPI Reference.

The conceptual discussion includes the following subjects:

The reference content includes the following:

The reference for each API lists the constants, type definitions, and interfaces that a developer must implement to use the additional functionality.

Note Note

Developers must implement these APIs only as documented in this reference. Certain interface members and method parameters are named as placeholders because they are reserved for the internal use of Outlook and are subject to change without notice.