After you install this security update on a server that is running Forefront Unified Access Gateway 2010, you may be redirected to an error page instead of to the Outlook Web Access application. For more information, click the following article number to go to the article in the Microsoft Knowledge Base:
FIX: You may be redirected to an error page after you install security update 2649261 on a server that is running Forefront Unified Access Gateway 2010
After you install this security update, you may receive an error message that resembles the following when you try to install update 2585140:
Windows Installer
The upgrade patch cannot be installed by the Windows Installer service because the program to be upgraded may be missing, or the upgrade patch may update a different version of the program. Verify that the program to be upgraded exists on your computer and that you have the correct upgrade patch.
To resolve this issue, uninstall security update 2649261 and then install update 2585140. After you install update 2585140, install security update 2649262.
For more information about update 2585140 and security update 2649262, click the following article numbers to view the article in the Microsoft Knowledge Base:
Description of the Service Pack 1 Update 1 for Forefront Unified Access Gateway (UAG) 2649262
(http://support.microsoft.com/kb/2649262/
)
MS12-026: Description of the security update for Microsoft Forefront Unified Access Gateway 2010 Service Pack 1 Update 1: April 10, 2012
Frequently asked questions
Q1: Can security update for UAG SP1 U1 (KB 2649262
(http://support.microsoft.com/kb/2649262)
) be installed on a system that already has UAG SP1 U1 Rollup 1 (KB 2647899
(http://support.microsoft.com/kb/2647899)
) installed? A1: Yes, KB 2649262 can be installed on both SP1 U1 and on SP1 U1 Rollup1. If the security update is installed on SP1 U1 (without Rollup 1), you do not also have to install Rollup 1. (Note that KB 2649262’s build number is 4.0.1773.10190, while KB 2647899’s build number is 4.0.1773.10110).
Q2: If you install security update 2649261 (KB 2649261
(http://support.microsoft.com/kb/2649261)
as described in security bulletin MS12-026) on top of UAG SP1 (KB 2522485
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.
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