This security update applies to Forefront Protection for Exchange only when Forefront Protection for Exchange is installed on an Exchange Hub or an Exchange Edge server. If Forefront Protection for Exchange is installed on an Exchange mailbox-only role, this update is not needed. The update is not required when Forefront Protection for Exchange is installed on clustered Exchange servers.
Before you can install this security update, you must install Hotfix Rollup 4 for Microsoft Forefront Protection for Exchange. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2619883 Hotfix Rollup 4 for Microsoft Forefront Protection for Exchange
Known issues with this security update
If you try to uninstall this security update, you may be prompted for the Forefrontsetup_64.msi file if the original installation images are not available.
Note The Forefrontsetup_64.msi file is included in this security update.
To work around this issue, use either of the following methods:
Provide the original installation disks.
Extract the file from the security update. To do this, open a command prompt, type the following command, and then press Enter:
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.