MS11-039: Vulnerability in the .NET Framework and in Microsoft Silverlight could allow remote code execution: June 14, 2011

How to obtain help and support for this security update

Help installing updates:
Support for Microsoft Update

Security solutions for IT professionals:
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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

Known issues and additional information about this security update

The following articles contain additional information about this security update as it relates to individual product versions. The articles may contain known issue information. If this is the case, the known issue is listed under each article link.

• 2478663 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
  
  Known issues in security update 2478663:

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

    2197146 Updates for the .NET Framework may not have a fully localized setup experience
    
    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 FIX: Updating the .NET Framework may fail and some files in the GAC may be deleted
    
    2263996 Patching of Microsoft Framework can fail with Access is denied or File in Use error
    

• 2478662 MS11-039: Description of the security update for the .NET Framework 3.5.1 on Windows 7 Service Pack 1 and on Windows Server 2008 R2 Service Pack 1: June 14, 2011
  
  Known issues in security update 2478662:

  • 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:
    
    

    2263996 Patching of Microsoft Framework can fail with Access is denied or File in Use error

• 2478661 MS11-039: Description of the security update for the .NET Framework 3.5.1 on Windows 7 and on Windows Server 2008 R2: June 14, 2011
  
  Known issues in security update 2478661:

  • 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:
    
    

    2263996 Patching of Microsoft Framework can fail with Access is denied or File in Use error

• 2478660 MS11-039: Description of the security update for the .NET Framework 3.5 Service Pack 1, Windows Vista Service Pack 2 and Windows Server 2008 Service Pack 2: June 14, 2011
  
  Known issues in security update 2478660:

  • 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:

    2263996 Patching of Microsoft Framework can fail with Access is denied or File in Use error

• 2478659 MS11-039: Description of the security update for the .NET Framework 3.5 Service Pack 1 on Windows Vista Service Pack 1 and on Windows Server 2008: June 14, 2011
  
  Known issues in security update 2478659:

  • 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:

    2263996 Patching of Microsoft Framework can fail with Access is denied or File in Use error

• 2478658 MS11-039: Description of the security update for the .NET Framework 3.5 Service Pack 1 and .NET Framework 2.0 Service Pack 2 on Windows XP Service Pack 3 and on Windows Server 2003 Service Pack 2: June 14, 2011 
  
  Known issues in security update 2478658:

  • For more information about installation issues with the .NET Framework 3.5 SP1 and with the .NET Framework 2.0 SP2, click the following article number to view the article in the Microsoft Knowledge Base:

    923100 When you try to install an update for the .NET Framework 1.0, 1.1, 2.0, 3.0, or 3.5, you may receive Windows Update error code "0x643" or Windows Installer error code "1603"
    
    
    
    923101 Error message when you try to install a security update for the .NET Framework 2.0 on a computer that is running Windows Server 2003 x64 Edition: "Error 1324. The folder 'Program Files' contains an invalid character"
    
    
    
    2197146 Updates for the .NET Framework 3.5 Service Pack 1 and the .NET Framework 2.0 Service Pack 2 may cause the Microsoft Knowledge Base article number to appear instead of the full title of the update in the Add or Remove Programs item in Control Panel
    
    2260913 FIX: Updating the .NET Framework may fail and some files in the GAC may be deleted
    
    2263996 Patching of Microsoft Framework can fail with Access is denied or File in Use error
    

• 2478656 MS11-039: Description of the security update for the .NET Framework 3.5 on Windows XP Service Pack 3 and on Windows Server 2003 Service Pack 2: June 14, 2011
  
  Known issues in security update 2478656:

  • For more information about installation issues with the .NET Framework 3.5 SP1 and with the .NET Framework 2.0 SP2, click the following article number to view the article in the Microsoft Knowledge Base:

    923100 When you try to install an update for the .NET Framework 1.0, 1.1, 2.0, 3.0, or 3.5, you may receive Windows Update error code "0x643" or Windows Installer error code "1603"
    
    
    
    923101 Error message when you try to install a security update for the .NET Framework 2.0 on a computer that is running Windows Server 2003 x64 Edition: "Error 1324. The folder 'Program Files' contains an invalid character"
    
    
    
    2197146 Updates for the .NET Framework 3.5 Service Pack 1 and the .NET Framework 2.0 Service Pack 2 may cause the Microsoft Knowledge Base article number to appear instead of the full title of the update in the Add or Remove Programs item in Control Panel
    
    2260913 FIX: Updating the .NET Framework may fail and some files in the GAC may be deleted
    
    2263996 Patching of Microsoft Framework can fail with Access is denied or File in Use error
    

• 2478657 MS11-039: Description of the security update for the .NET Framework 3.5 on Windows Vista Service Pack 1 and on Windows Server 2008: June 14, 2011
  
  Known issues in security update 2478657:

  • 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:

    2263996 Patching of Microsoft Framework can fail with Access is denied or File in Use error