MS10-070: Description of the security update for the Microsoft .NET Framework 4 on Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2

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

Download Information

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


Download the package now.

Release Date: September 28, 2010

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online services
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:

Windows Installer 4.5 Redistributable

Known issues and additional information about this security update

For more information about installation issues this security update or with the Microsoft .NET Framework Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base:

2431728 Encrypted content in ASP.NET is not decrypted for a website that is deployed in a web farm
2431208 An update for the Microsoft .NET Framework may fail to install when the Microsoft .NET Framework 4 is installed and a restart is pending
2260913 Files in use or File Locks can Result in Framework Assembly Files being Deleted
2263996 Patching of Microsoft Framework can fail with Access is denied or File in Use error
2473228 Products or updates may not be installed correctly when Microsoft .NET Framework 4 or updates for Microsoft .NET Framework 4 are installed after the other product or update installs and a restart is pending

Note The installer for the update that corresponds to Knowledge Base article 2416472 does not have a localized link for the Data Collection Policy. This information can be found in the following websites. Select the link that is appropriate for your language:

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

You do not have to restart the system after you install this security update unless files that are being updated are locked or in use. However, this security update will cause all Internet Information Services (IIS)-related services to restart. These include the IISADMIN, W3SVC, FTP, and SMTP services. This behavior occurs because a base component for the .NET Framework includes instructions to restart these services. Therefore, every update to the product will execute the same instructions to restart these services.

Update removal information

To remove this security 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.

For x86-based systems

GDR files

LDR files

For x64-based systems

GDR files

LDR files

For IA-64-based systems

GDR files

LDR files