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    Microsoft Exchange Server MAPI Client and Collaboration Data Objects 1.2.1

    Starting with Exchange 2007, neither the Messaging API (MAPI) client libraries nor CDO 1.2.1 are provided as a part of the base product installation. As a result, there is functionality missing that many applications depend on. Microsoft Exchange MAPI and CDO 1.2.1 provide access to these APIs
    • Version:

      File Name:


      Date Published:


      File Size:

      2.5 MB

        The Messaging API is a COM-like API that provides access to the contents of messaging stores. CDO 1.2.1 (Collaboration Data Objects, version 1.2.1) is a package providing access to Outlook-compatible objects through a COM-based API. Using either CDO or MAPI, a program can connect to a MAPI store, and then perform operations against that store. Starting with Exchange 2007, Microsoft will distribute the MAPI client libraries and CDO 1.2.1 as a Web download.
    • Supported Operating System

      Windows 7, Windows Server 2003, Windows Server 2008, Windows Server 2008 R2, Windows Vista

          This package will not install on a system on which any version of Microsoft Outlook or Microsoft Exchange Server 2003 or earlier is installed.
        1. If you have installed a prior version of this package, uninstall it.
        2. Click the Download button on this page to start the download
        3. Do one of the following:
          • To start the installation immediately, click Run.
          • To save the download to your computer for installation at a later time, click Save.
          • To cancel the installation, click Cancel.