MS09-051: Description of the security update for DirectShow WMA Voice Codec: October 13, 2009

Article translations Article translations
Article ID: 969878 - View products that this article applies to.
Expand all | Collapse all

On This Page


Microsoft has released security bulletin MS09-051. To view the complete security bulletin, visit one of the following Microsoft Web sites:

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


The English (United States) version of this security update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows XP and Windows Server 2003 file information notes

  • The files that apply to a specific milestone (RTM, SPn) and service branch (QFE, GDR) are noted in the "Service branch” column.
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. QFE service branches contain hotfixes in addition to widely released fixes.
  • In addition to the files that are listed in these tables, this software update also installs an associated security catalog file ( that is signed with a Microsoft digital signature.

For Windows Media Player 9 for all supported x86-based and x64-based versions of Windows 2003, Windows XP, and Windows 2000

Collapse this tableExpand this table
File NameVersionDateTimeSizeService branch


Article ID: 969878 - Last Review: May 23, 2012 - Revision: 3.0
  • Microsoft Windows Server 2003 Service Pack 2, when used with:
    • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
    • Microsoft Windows Server 2003, Datacenter x64 Edition
    • Microsoft Windows Server 2003 R2 Standard x64 Edition
    • Microsoft Windows XP Professional x64 Edition
  • Microsoft Windows XP Service Pack 3, when used with:
    • Microsoft Windows XP Professional
    • Microsoft Windows XP Home Edition
  • Microsoft Windows 2000 Service Pack 4, when used with:
    • Microsoft Windows 2000 Advanced Server
    • Microsoft Windows 2000 Server
    • Microsoft Windows 2000 Professional Edition
kbsecvulnerability kbsecurity kbsecbulletin kbsurveynew kbfix kbbug kbqfe kbexpertiseinter KB969878

Give Feedback


Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from