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Introduction

Microsoft has released security bulletin MS11-021. 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 about this security update

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 below each article link.

  • 2466146 MS11-021: Description of the security update for Excel 2010: April 12, 2011

  • 2466156 MS11-021: Description of the security update for the 2007 Office system and the Office Compatibility Pack: April 12, 2011

  • 2466158 MS11-021: Description of the security update for Excel Viewer: April 12, 2011

  • 2464583 MS11-021: Description of the security update for Excel 2007: April 12, 2011

  • 2502786 MS11-021: Description of the security update for Excel 2003: April 12, 2011

  • 2466169 MS11-021: Description of the security update for Excel 2002: April 12, 2011

    Known issue in security update 2466169:

    • After you install this security update, you may have to accept the Microsoft Software License Terms when you start a Microsoft Office XP program. If you do not accept the Microsoft Software License Terms, the Office XP program may not start.

  • 2505927 MS11-021: Description of the Microsoft Office 2008 for Mac 12.2.9 Update

  • 2505924 MS11-021: Description of the Microsoft Office 2004 for Mac 11.6.3 Update

  • 2505935 MS11-021: Description of the security update for the Open XML File Format Converter for Mac 1.1.9

  • 2525412 Description of the Microsoft Office for Mac 2011 14.1 Update

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