MS11-028: Description of the security update for the .NET Framework 3.5.1 on Windows 7 and on Windows Server 2008 R2: April 12, 2011

Microsoft has released security bulletin MS11-028. To view the complete security bulletin, visit one of the following Microsoft websites:

• Home users:
  http://www.microsoft.com/security/pc-security/bulletins/201104.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/ms11-028.mspx

How to obtain help and support for this security update

Help installing updates: Support for Microsoft Update

Security solutions for IT professionals: TechNet Security Troubleshooting and Support

Help protect your computer that is running Windows from viruses and malware: Virus Solution and Security Center

Local support according to your country: International Support



For more information about installation issues with the Microsoft .NET Framework 3.5.1, click the following article number to view the article in the Microsoft Knowledge Base:

Command-line switches for this update

For more information about the various command-line switches that are supported by this update, click the following article number to view the article in the Microsoft Knowledge Base:

Restart requirement

This update does not require a system restart after you apply it unless files being updated are locked or in use.

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 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.

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