MS11-039: Description of the security update for the .NET Framework 4 on Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2: June 14, 2011

Microsoft has released security bulletin MS11-039. To view the complete security bulletin, visit one of the following Microsoft websites:

• Home users:
  http://www.microsoft.com/security/pc-security/bulletins/201106.aspx
  Skip the details: Download the updates for your home computer or laptop from the Microsoft Update website now:�
  http://update.microsoft.com/microsoftupdate/
• IT professionals:
  http://www.microsoft.com/technet/security/bulletin/ms11-039.mspx

How to obtain help and support for this security update

For home users, no-charge support is available by calling 1-866-PCSAFETY in the United States and Canada or by contacting your local Microsoft subsidiary. For more information about how to contact your local Microsoft subsidiary for support issues with security updates, visit the Microsoft International Support website: North American customers can also obtain instant access to unlimited no-charge email support or to unlimited individual chat support by visiting the following Microsoft website: For enterprise customers, support for security updates is available through your usual support contacts.

Download information

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

Download the package now.

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.

Prerequisites

To install this update, you must have Windows Installer 3.1 or a later version installed on the computer. To obtain the latest version of Windows Installer, visit the following Microsoft website:

Known issues and additional information about this security update

For more information about installation issues with the Microsoft .NET Framework 4, click the following article number to view the article in the Microsoft Knowledge Base:

Command-line switches for this update

For information about the various command-line switches that are supported by this update, see the Windows Installer command-line switches document.

For more information about Windows Installer, visit the Windows Installer MSDN website.

Restart requirement

This update does not require a system restart after you apply it unless the files that are being updated are locked or in use. However, installing this update triggers a restart of all Internet Information Services (IIS)-related services, and this includes the IISADMIN, W3SVC, FTP, and SMTP services. This behavior occurs because a base component for the .NET Framework includes instructions for restarting these services. Therefore, every update to the product will execute the same restarting instructions.

Update removal information

To remove this update, use the Add or Remove Programs item in Control Panel.

Update replacement information

This security update does not replace a previously released security update.

The English (United States) version of this security update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

For all supported x86-based versions of systems

GDR Service Branch

LDR Service Branch

For all supported x64-based versions of systems

GDR Service Branch

LDR Service Branch

For all supported IA-64-based versions of systems

GDR Service Branch

LDR Service Branch