MS09-051: Description of the security update for Audio Compression Manager: October 13, 2009


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.

For all supported editions of Microsoft Windows 2000 Service Pack 4

File NameVersionDateTimeSizeService branch

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 (KB that is signed with a Microsoft digital signature.

For all supported x64-based versions of Windows Server 2003 and Windows XP Professional x64 edition

File NameVersionDateTimeSizeCPUService branch

For all supported x86-based versions of Windows Server 2003

File NameVersionDateTimeSizeService branch

For all supported x86-based versions of Windows XP

File NameVersionDateTimeSizeService branch

Article ID: 975025 - Last Review: May 8, 2012 - Revision: 1

Microsoft Windows Server 2003 Service Pack 2, Microsoft Windows Server 2003, Datacenter Edition (32-bit x86), Microsoft Windows Server 2003, Datacenter x64 Edition, Microsoft Windows XP Professional x64 Edition, Microsoft Windows XP Service Pack 3, Microsoft Windows XP Professional, Microsoft Windows XP Home Edition, Microsoft Windows 2000 Service Pack 4, Microsoft Windows 2000 Advanced Server, Microsoft Windows 2000 Server, Microsoft Windows 2000 Professional Edition