Applies ToWindows 7 Service Pack 1 Windows 7 Home Basic Windows 7 Home Premium Windows 7 Professional Windows 7 Ultimate Windows 7 Enterprise Windows 7 Home Basic Windows 7 Home Premium Windows 7 Professional Windows 7 Ultimate Windows 7 Enterprise Windows Server 2008 R2 Service Pack 1 Windows Server 2008 R2 Standard Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Standard Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Datacenter Microsoft Windows Server 2003 Service Pack 2 Microsoft Windows XP Professional x64 Edition Microsoft Windows XP Service Pack 3 Microsoft Windows XP Home Edition Microsoft Windows XP Professional

Introduction

Microsoft has released security bulletin MS11-013. To view the complete security bulletin, visit one of the following Microsoft websites:

How to obtain help and support for this security update

Help installing updates: Support for Microsoft UpdateSecurity solutions for IT professionals: TechNet Security Troubleshooting and SupportHelp protect your computer that is running Windows from viruses and malware:Virus Solution and Security CenterLocal support according to your country: International Support

More Information

Known issues and additional information

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 below each article link.

  • 2425227 MS11-013: Description of the security update for Kerberos in Windows 7 and in Windows Server 2008 R2: February 8, 2011

  • 2478971 MS11-013: Description of the security update for Kerberos in Windows XP and in Windows Server 2003: February 8, 2011

Security update replacement information

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

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