An update is available for Subsystem for UNIX-based Applications in Windows Vista that addresses daylight saving time changes in 2007

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An update is available for Subsystem for UNIX-based Applications in Windows Vista that addresses daylight saving time changes in 2007
View products that this article applies to.
Article ID : 934111
Last Review : November 1, 2007
Revision : 4.0
Important The update that is described in this Microsoft Knowledge Base article has been replaced by the update that is described in Microsoft Knowledge Base articles 942894 and 942878. To make sure that Microsoft Windows has the latest time zone data, apply the appropriate update that is described in Microsoft Knowledge Base articles 942894 and 942878. You do not have to uninstall the update that is described in this Microsoft Knowledge Base article before you apply the update that is described in Microsoft Knowledge Base articles 942894 and 942878. Check the applicable version numbers of the product that you have before you download the fix.

For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:

942894 (/Feedback.aspx?kbNumber=942894/) An update that addresses the change to daylight saving time in 2007 is available for Windows Server 2003 R2-based computers and for Windows Vista-based computers that are running Subsystem for UNIX-based Applications
942878 (/Feedback.aspx?kbNumber=942878/) A hotfix that addresses the change to daylight saving time in 2007 is available for Windows Services for UNIX and for Subsystem for UNIX-based Applications
On This Page

The U.S. Energy Policy Act of 2005 was passed by the United States Congress in July, 2005. This Act extended daylight saving time (DST) in the United States by approximately four weeks. Therefore, beginning in 2007, DST will start three weeks earlier on March 11, 2007, and will end one week later on November 4, 2007. The new DST period is four weeks longer than previously observed. These four weeks are referred to as the extended DST period. For more information, visit the following Microsoft Web site:
http://support.microsoft.com/gp/dst_topissues (http://support.microsoft.com/gp/dst_topissues)

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INTRODUCTION

An update for DST changes in 2007 is now available for computers that are running Subsystem for UNIX-based Applications (SUA) in Windows Vista.

Note Subsystem for UNIX-based Applications is available in the following versions of Windows Vista:

• Windows Vista Ultimate
• Windows Vista Enterprise

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MORE INFORMATION

Software update information

In the spring of 2007, the start date and the end date for DST in the United States will change to comply with the Energy Policy Act of 2005. The dates will change as follows.

DST In 2007 In previous years
Start date Second Sunday in March, 2:00 A.M. First Sunday in April, 2:00 A.M.
End date First Sunday in November, 2:00 A.M. Last Sunday in October, 2:00 A.M.

A time zone update for DST that will address this issue for Subsystem for UNIX-based Applications in Windows Vista is now available. This update modifies the Windows-to-Portable Operating System Interface (POSIX) time zone mapping that is built in to Subsystem for UNIX-based Applications.

A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451 (http://go.microsoft.com/?linkid=6294451)

Note If additional issues occur or 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 hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)

Prerequisites

To apply this update, you must have the following installed:

• Subsystem for UNIX-based Applications
• The hotfix that is mentioned in the following Microsoft Knowledge Base article:
932143 (/Feedback.aspx?kbNumber=932143/) A hotfix is available for Microsoft Windows Services for UNIX and Subsystem for UNIX-based Applications that addresses the change to daylight saving time in 2007

Restart requirement

You must restart the computer after you apply this hotfix.

Update replacement information

This update does not replace any other updates.

File information

The English version of this 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 Vista, 32-bit versions
File name File version File size Date Time Platform
Psxoffset 6.0.6000.20555 15,872 13-Mar-2007 00:44 Not Applicable
Psxss.exe 6.0.6000.20555 648,704 13-Mar-2007 00:45 x86
Psxdll.dll 6.0.6000.20555 294,400 13-Mar-2007 02:14 x86
Psxdllsvr.dll 6.0.6000.20555 343,552 13-Mar-2007 02:14 x86
Posix.exe 6.0.6000.20555 76,288 13-Mar-2007 00:44 x86
Psxrun.exe 6.0.6000.20555 40,960 13-Mar-2007 00:44 x86
Suagc.exe 6.0.6000.20555 7,680 13-Mar-2007 00:44 x86
Loginenv 6.0.6000.20555 15,872 13-Mar-2007 00:44 Not Applicable
Makedev 6.0.6000.20555 38,400 13-Mar-2007 00:44 Not Applicable
Psxdrv.sys 6.0.6000.20555 8,704 13-Mar-2007 00:44 x86
Sua-ppdlic.xrm-ms Not Applicable 2,952 13-Mar-2007 02:02 Not Applicable
Posixsscom.dll 6.0.6000.20555 5,632 13-Mar-2007 02:14 x86
Suares.dll 6.0.6000.20555 2,048 12-Mar-2007 23:07 x86
Disablesetuid.ini Not Applicable 92 07-Jan-2007 05:51 Not Applicable
Enablesetuid.ini Not Applicable 92 07-Jan-2007 05:51 Not Applicable
Baseu.prm Not Applicable 1,153 07-Jan-2007 05:51 Not Applicable
Baseu.dnl Not Applicable 166 07-Jan-2007 05:51 Not Applicable
Desktop.ini Not Applicable 81 07-Jan-2007 05:51 Not Applicable
Download.url Not Applicable 71 07-Jan-2007 05:51 Not Applicable
Windows Vista, 64-bit versions
File name File version File size Date Time Platform
Psxss.exe 6.0.6000.20555 837,632 13-Mar-2007 01:09 x64
Psxdllsvr.dll 6.0.6000.20555 360,448 13-Mar-2007 03:12 x64
Psxdll.dll 6.0.6000.20555 311,808 13-Mar-2007 03:12 x64
Posix.exe 6.0.6000.20555 83,968 13-Mar-2007 01:08 x64
Psxrun.exe 6.0.6000.20555 44,544 13-Mar-2007 01:08 x64
Psxoffset 6.0.6000.20555 15,360 13-Mar-2007 01:08 Not Applicable
Suagc.exe 6.0.6000.20555 8,704 13-Mar-2007 01:08 x64
Loginenv 6.0.6000.20555 12,288 13-Mar-2007 01:08 Not Applicable
Makedev 6.0.6000.20555 41,984 13-Mar-2007 01:08 Not Applicable
Psxdrv.sys 6.0.6000.20555 9,728 13-Mar-2007 01:08 x64
Suares.dll 6.0.6000.20555 2,048 12-Mar-2007 23:10 x64
Disablesetuid.ini Not Applicable 92 07-Jan-2007 05:51 Not Applicable
Enablesetuid.ini Not Applicable 92 07-Jan-2007 05:51 Not Applicable
Baseu.prm Not Applicable 1,153 07-Jan-2007 05:51 Not Applicable
Baseu.dnl Not Applicable 166 07-Jan-2007 05:51 Not Applicable
Desktop.ini Not Applicable 81 07-Jan-2007 05:51 Not Applicable
Download.url Not Applicable 71 07-Jan-2007 05:51 Not Applicable
Sua-ppdlic.xrm-ms Not Applicable 2,952 13-Mar-2007 02:55 Not Applicable

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STATUS

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

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MORE INFORMATION

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 (/Feedback.aspx?kbNumber=824684/) Description of the standard terminology that is used to describe Microsoft software updates

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APPLIES TO
• Windows Vista Ultimate
• Windows Vista Ultimate 64-bit Edition
• Windows Vista Enterprise
• Windows Vista Enterprise 64-bit Edition

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Keywords: 
 kbbug kbfix kbqfe kbpubtypekc kbhotfixserver KB934111

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Microsoft Knowledge Base Article

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