Exchange Server 2003 MAPI CDO 1.2.1 and CDO 1.2.1 have been updated

This article describes the October 2011 release of the following Microsoft products:

• Microsoft Exchange Server MAPI Client and Collaboration Data Objects (CDO) 1.2.1
• Collaboration Data Objects, version 1.2.1

Note Starting with Microsoft Exchange Server 2007, the MAPI client libraries and CDO 1.2.1 are not provided as a part of the base Exchange 2007 product installation. However, your applications may require the functionality that these components provide. Microsoft Exchange MAPI and CDO 1.2.1 provide access to the APIs that you can use to access the contents of MAPI stores.

Download information

Exchange Server MAPI Client and Collaboration Data Objects 1.2.1

The following file is available for download from the Microsoft Download Center:

Download the ExchangeMapiCDO.exe package now.

Release Date: October 26, 2011

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Collaboration Data Objects, version 1.2.1

The following file is available for download from the Microsoft Download Center:

Download the ExchangeCDO.exe package now.

Release Date: October 26, 2011

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Note CDO 1.2.1 is supported on client computers that are running Windows Vista and on client computers that are running earlier versions of Windows.

Dynamic CDO

For more information about dynamic CDO, click the following article number to view the article in the Microsoft Knowledge Base:
Note For dynamic CDO to detect a change that was made to the operating system registry, the CDO service must be restarted.

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: For more information, click the following article number to view the article in the Microsoft Knowledge Base: