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Update Rollup 16 for Microsoft Exchange Server 2010 Service Pack 3 (SP3) was released on December 13, 2016. Before you install this update, you must remove all interim updates for Exchange Server 2010 SP3. Also, see this important information about how to install this update.

This update includes time zone updates for Exchange Server 2010 SP3. For more information about daylight saving time (DST), go to Daylight Saving Time Help and Support Center.  

Get Update Rollup 16 for Exchange Server 2010 SP3

Microsoft Download Center

The update rollup is also available for download from the following Microsoft Download Center website:

Download Update Rollup 16 for Exchange Server 2010 SP3 (KB3184730).

Update detail information

Installation instructions

Learn more about how to install the latest update rollup for Exchange Server 2010.

Also learn about the following update installation scenarios.

When you install this update rollup on a computer that isn't connected to the Internet, you may experience a long installation time. Additionally, you may receive the following message:

Creating Native images for .Net assemblies.

This behavior is caused by network requests to connect to the following website:

These network requests represent attempts to access the certificate revocation list for each assembly that native image generation (NGen) compiles to native code. However, because the server that's running Exchange Server isn't connected to the Internet, each request must wait to time out before the process continues.

To fix this issue, follow these steps:

  1. On the Tools menu in Internet Explorer, select Internet Options, and then select Advanced.

  2. In the Security section, clear the Check for publisher's certificate revocation check box, and then select OK.

  3. When setup is complete, select the Check for publisher's certificate revocation check box again.

Note Clear this security option in Internet Explorer only if the computer is in a tightly-controlled environment.

Important Before you apply this update rollup, make a backup copy of any customized Outlook Web Appfiles.

When you apply an update rollup package, the update process updates the Outlook Web App files, if it's required. Therefore, any customizations to the Logon.aspx file or to other Outlook Web App files are overwritten, and you must re-create the Outlook Web App customizations in Logon.aspx.

If you meet both of the following conditions, apply the update rollup on the Internet-facing Client Access servers (CAS) before you apply the update rollup on the non-Internet-facing Client Access servers:

  • You're a CAS Proxy Deployment Guidance customer.

  • You have deployed CAS-CAS proxying.

Note For other Exchange Server 2010 configurations, you don't have to apply the update rollup on your servers in any particular order.

Restart requirementThe required services are restarted automatically when you apply this update rollup.

Removal informationTo remove Update Rollup 16 for Exchange Server 2010 SP3, use the Add or Remove Programs item in Control Panel to remove update 3184730. 

More Information

Installing this update on a DBCS version of Windows Server 2012You can't install or uninstall Update Rollup 16 for Exchange Server 2010 SP3 on a double-byte character set (DBCS) version of Windows Server 2012 if the language preference for non-Unicode programs is set to the default language. To work around this issue, you must first change this setting. To do this, follow these steps:

  1. In Control Panel, select Clock, Region and Language, select Region, and then select Administrative.

  2. In the Language for non-Unicode programs area, select Change system locale.

  3. On the Current system locale list, select English (United States), and then select OK.

After you successfully install or uninstall Update Rollup 16, revert this language setting as appropriate.


Learn about the terminology that Microsoft uses to describe software updates.

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