What's New in This Edition

Published: July 16, 2012

The Microsoft Outlook 2013 MAPI Reference has been updated to include documentation for various new features.

Content has been added for the following features:

Content was added in previous releases of the Outlook MAPI Reference for the following features:

  • Microsoft Outlook 2013 allows for non-traditional deployment scenarios such as side-by-side and Click-to-Run. These scenarios can complicate the logic used to load the proper MAPI library. MAPI developers now have the option of linking explicitly to MAPI functions, and can choose to explicitly link to the MAPI stub of the default MAPI client (for example, Msmapi32.dll of Outlook) without going through the MAPI library and the Windows MAPI stub. For more information about explicit linking as compared with implicit linking, see How to: Link to MAPI Functions. The MAPI Stub Library, posted on the CodePlex website, provides a drop-in replacement for Mapi32.lib that supports building both 32-bit and 64-bit MAPI applications.

  • Support for 64-bit Microsoft Outlook—Reference topics for applicable API elements were updated to correspond to new header files that support 64-bit Outlook. Those header files are available as a download at Outlook 2010: MAPI Header Files. A new code sample was provided in How to: Check the Version of Outlook to show how to check whether the installed version of Outlook is 64-bit Microsoft Outlook 2010 and has been revised for Outlook 2013. If your existing 32-bit MAPI application is going to be running on a 64-bit operating system with 64-bit Outlook installed, you will need to rebuild your 32-bit application as a 64-bit application. For more information about MAPI support for 64-bit Outlook, see Building MAPI Applications on 32-Bit and 64-Bit Platforms.

  • Message Store Provider Example—The Sample Wrapped PST Store Provider had previously been updated to support 64-bit architecture. The Example’s Initializing a Wrapped PST Store Provider topic has now been expanded to provide information about the “Wrapped PST and Unicode Paths.”

  • Autocomplete Stream—The Nickname cache topic, formerly the Nk2 File Format, has been updated to reflect changes in Outlook 2013 as well as Outlook 2010. Information such as the autocomplete list, which is the list of names that displays in the To, Cc, and Bcc edit boxes while a user is composing an email, is now saved to the Autocomplete Stream of a message on the local computer rather than saving it to a file as in Outlook 2007.

    • Interacting with the Autocomplete Stream

    • Loading the Autocomplete Stream

    • Saving the Autocomplete Stream

  • Fast shutdown support for MAPI clients—MAPI clients can now initiate a quick shutdown and have the MAPI subsystem notify loaded providers to minimize data loss from the fast shutdown. Additional interfaces were added for the client and provider to support fast shutdown. For more information about fast shutdown, see Client Shutdown in MAPI.

  • Stream structure for field definitions for an Outlook item—Documentation for a binary stream for the PidLidPropertyDefinitionStream property was added. This property specifies definitions of all custom fields and data-binding settings for built-in fields of an Outlook item.

  • Personal Store Override—The following interfaces and their respective methods were added to support overriding the Personal Folders file (PST) store providers PSTDisableGrow policy:

    IPSTOVERRIDEREQ::IUnknown

    IPSTOVERRIDE1::IUnknown

  • Using Multiple Exchange Accounts—Documentation for the MAPI Address Book API was added. This API was enhanced to support multiple Exchange accounts in Microsoft Outlook 2010 and now includes Microsoft Outlook 2013. To resolve addresses correctly with multiple Exchange accounts, use the new functions that take an account context so that calls to the address book search the correct Exchange account.

  • MAPI File Formats—MAPI configuration information has been expanded to explain how you can use paths in Registering Services and Service Providers in MapiSvc.inf.

  • Properties—The following tagged properties were added in addition to documentation for 38 other tagged properties and named properties that had previously been added:

  • MAPI Constants—The consolidated MAPI Constants have been expanded. In previous releases, they were distributed in a number of topics but are now collected in a single topic to make them easier to discover and use. They have also been expanded to provide more extensive coverage including the following sections:

    • Definitions for Exchange Address Book and Message Store Error Codes

    • Definitions for Exchange Server Mailbox Cached Mode Quotas

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