CDOEX on Windows Server 2008 R2 requires a registry key permission change when you install Exchange Server 2007 SP3

Applies to: Windows Server 2008 R2


Microsoft Exchange Server 2007 Service Pack 3 (SP3) is supported on Windows Server 2008 R2. In order to use the Collaboration Data Objects for Exchange 2000 Server (CDOEX) feature correctly on Windows Server 2008 R2, a registry key permission must be changed. This enables an administrator to change the value of the registry key during the Exchange Server 2007 SP3 installation process. A Windows update is released to fix this problem.

More Information

Hotfix information

A supported feature that modifies the default behavior of the product is available from Microsoft. However, this feature is intended to modify only the behavior that this article describes. Apply this feature only to systems that specifically require it. This feature might receive additional testing. Therefore, if the system is not severely affected by the lack of this feature, we recommend that you wait for the next software update that contains this feature.

If the feature is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the feature.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific feature. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the feature is available. If you do not see your language, it is because the feature is not available for that language.


To apply this hotfix, you must be running Windows Server 2008 R2.

Restart requirement

You may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows Server 2008 R2 file information notes

Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2 and for Windows 7" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
For all supported IA-64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for Windows Server 2008 R2

Additional files for all supported x64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Amd64_f1512b4d23e0a21c7cd43a03bd963a8a_31bf3856ad364e35_6.1.7600.20709_none_9ca13f59cfc4a6f2.manifestNot Applicable1,03807-May-201018:48Not Applicable
Amd64_microsoft-windows-cdosys_31bf3856ad364e35_6.1.7600.20709_none_7b1f14cc57ee811b.manifestNot Applicable52,67107-May-201015:54Not Applicable
Package_1_for_kb982720~31bf3856ad364e35~amd64~~ Applicable2,04107-May-201018:48Not Applicable
Package_for_kb982720_rtm~31bf3856ad364e35~amd64~~ Applicable1,46607-May-201018:48Not Applicable
Wow64_microsoft-windows-cdosys_31bf3856ad364e35_6.1.7600.20709_none_8573bf1e8c4f4316.manifestNot Applicable52,29607-May-201014:43Not Applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Ia64_6b34192a60a79271a51280c3d62ae14c_31bf3856ad364e35_6.1.7600.20709_none_632978bee4cfac2d.manifestNot Applicable1,03607-May-201018:48Not Applicable
Ia64_microsoft-windows-cdosys_31bf3856ad364e35_6.1.7600.20709_none_1f021d3e9f8f18e1.manifestNot Applicable52,66707-May-201015:50Not Applicable
Package_1_for_kb982720~31bf3856ad364e35~ia64~~ Applicable2,03607-May-201018:48Not Applicable
Package_for_kb982720_rtm~31bf3856ad364e35~ia64~~ Applicable1,46207-May-201018:48Not Applicable
Wow64_microsoft-windows-cdosys_31bf3856ad364e35_6.1.7600.20709_none_8573bf1e8c4f4316.manifestNot Applicable52,29607-May-201014:43Not Applicable