A hotfix is available for Windows Services for UNIX and for Subsystem for UNIX-based Applications to incorporate a cumulative DST update for December 2009

This article describes a hotfix that is available for the following components:

• Windows Services for UNIX
• Utilities and software development kits (SDKs) for Subsystem for UNIX-based Applications (SUA)

This hotfix incorporates a cumulative daylight saving time (DST) update for the following time zones:

• N. Central Asia Standard Time
  Almaty is moved from the N. Central Asia Standard Time time zone to the Central Asia Standard Time time zone.
• Central Brazil Standard Time
  The DST start date and the DST end date are adjusted.
• E. South America Standard Time
  The DST start date and the DST end date are adjusted.
• Egypt Standard Time
  The DST start date and the DST end date are adjusted.
• Georgian Standard Time
  This time zone is changed from (GMT+03:00) to (GMT+4:00).
  
  Note This time zone does not use DST.
• Israel Standard Time
  The DST start date and the DST end date are adjusted.
• North Asia East Standard Time
  �Ulaan Batar� is removed from the display name for this time zone.
• Paraguay Standard Time
  The DST start date and the DST end date are adjusted.
• Ulaanbaatar Standard Time
  The new Ulaanbaatar time zone that does not have DST. The display name is (GMT+08:00) Ulaanbaatar.

This hotfix also updates the time zone information to reflect current governmental DST settings for Microsoft Windows operating systems. Additionally, this hotfix addresses DST changes that were updated in the previous cumulative updates. We recommend that you install the latest DST update for your operating system.

For more information about the current governmental DST settings for Microsoft Windows operating systems, click the following article number to view the article in the Microsoft Knowledge Base:

This article contains the file information for the changes that this hotfix applies to the following products:

• Windows Services for UNIX 3.0
• Windows Services for UNIX 3.5
• Subsystem for UNIX-based Applications in Windows Server 2003 R2
• Subsystem for UNIX-based Applications in Windows Vista
• Subsystem for UNIX-based Applications in Windows Server 2008
• Subsystem for UNIX-based Applications in Windows 7
• Subsystem for UNIX-based Applications in Windows Server 2008 R2

Hotfix information

A supported feature that modifies the default behavior of the product is available from Microsoft. However, this feature is intended to modify only the behavior that this article describes. Apply this feature only to systems that specifically require it. This feature might receive additional testing. Therefore, if the system is not severely affected by the lack of this feature, we recommend that you wait for the next software update that contains this feature.

If the feature is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the feature.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific feature. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the feature is available. If you do not see your language, it is because the feature is not available for that language.

Prerequisites

To apply this hotfix, your computer must have one of the following products installed:

• Windows Services for UNIX 3.0
• Windows Services for UNIX 3.5
• Subsystem for UNIX-based Applications in Windows Server 2003 R2
• Subsystem for UNIX-based Applications in Windows Vista
• Subsystem for UNIX-based Applications in Windows Server 2008
• Subsystem for UNIX-based Applications in Windows 7
• Subsystem for UNIX-based Applications in Windows Server 2008 R2

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The English (United States) version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Services for all supported x86-based versions of UNIX 3.0

Windows Services for all supported x86-based versions of UNIX 3.5

Utilities and SDKs for all supported x86-based versions of Windows Server 2003 R2

Utilities and SDKs for all supported x64-based versions of Windows Server 2003 R2

Utilities and SDKs for all supported x86-based versions of Windows Server 2008 and of Windows Vista

Utilities and SDKs for all supported x64-based versions of Windows Server 2008 and of Windows Vista

Utilities and SDKs for all supported IA-64-based versions of Windows Server 2008

Utilities and SDKs for all supported x86-based versions of Windows 7

Utilities and SDKs for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

Utilities and SDKs for all supported IA-64-based versions of Windows Server 2008 R2

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: