MS12-025: Description of the security update for the .NET Framework 1.1 Service Pack 1 on Windows XP, Windows Server 2003 64-bit Edition, Windows Server 2003 Itanium Edition, Windows Vista, and Windows Server 2008: April 10, 2012

Important In response to customer feedback that we received after the original release of this update on April 10, 2012, this update was revised and re-released on June 12, 2012. If you installed the original update, you should install this revised update.

Note  If you previously installed hotfix 2712189 to address printing issues in Windows Forms and are now installing this re-release of this security update, you may see that installing this update does not change the version number of the files that are installed. This behavior is expected because hotfix 2712189 contains a more recent file version of the installed files and supersedes this re-release.  


Microsoft has released the security bulletin MS12-025. You can view the complete security bulletin by visiting one of the following Microsoft websites:

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

This update is available for download from the Microsoft Download Center:


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:

Command-line switches for this update

For information about the various command-line switches that are supported by this update, visit the following Microsoft Developer Network (MSDN) website:

Restart information

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

Update replacement information

This update does not replace any previously released update.

Update removal information

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

File information

The English (United States) version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

File nameFile versionFile sizeDateTime

Applies to

This article applies to the following:
  • Microsoft .NET Framework 1.1 Service Pack 1 when it is used with:
    • Windows XP Service Pack 3
    • Windows Server 2003 Service Pack 2
    • Windows Vista Service Pack 2
    • Windows Server 2008 Service Pack 2