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 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

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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