A scheduled task may not run after it wakes a Windows Vista-based or a Windows Server 2008-based computer from hibernation

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Article ID: 956519 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • You are running Windows Vista or Windows Server 2008 on a computer.
  • You create a scheduled task to run at a given time.
  • You configure the scheduled task to wake the computer to run.
  • You put the computer in hibernation (S4).
In this scenario, the computer comes out of hibernation at the expected time. However, the scheduled task may not run as expected.

CAUSE

Before the system enters hibernation, it sets the BIOS wake alarm to wake the computer 30 seconds before the scheduled time. However, if the computer takes more than 30 seconds to wake completely, the scheduled task misses its scheduled run time.

RESOLUTION

Hotfix information

A supported hotfix is 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 software update that contains this hotfix.

If the hotfix 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 hotfix.

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 hotfix. 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:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

Prerequisites

To apply this hotfix on a Windows Vista-based computer, you must have Windows Vista Service Pack 1 (SP1) installed on the computer. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista service pack
No prerequisites are required for Windows Server 2008-based computers.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix 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 and Windows Server 2008 file information notes

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.
    Collapse this tableExpand this table
    VersionProductMilestoneService branch
    6.0.6001.22xxxWindows Vista SP1 and Windows Server 2008 SP1SP1LDR
  • The .manifest files and the .mum files that are installed in each environment are listed separately in the "Additional file information for Windows Server 2008 and for Windows Vista" section. These files and their associated .cat (security catalog) files are critical to maintaining the state of the updated component. The .cat files are signed with a Microsoft digital signature. The attributes of these security files are not listed.
For all supported x86-based versions of Windows Server 2008 and Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Schedsvc.dll6.0.6001.22239597,50408-Aug-200807:51x86
Schedsvc.mofNot Applicable2,25018-Dec-200721:20Not Applicable
For all supported x64-based versions of Windows Server 2008 and Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Schedsvc.dll6.0.6001.22239843,77608-Aug-200806:31x64
Schedsvc.mofNot Applicable2,25018-Dec-200721:21Not Applicable
Schedsvc.mofNot Applicable2,25018-Dec-200721:20Not Applicable
For all supported Itanium-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Schedsvc.dll6.0.6001.222391,395,71208-Aug-200806:31IA-64
Schedsvc.mofNot Applicable2,25018-Dec-200721:22Not Applicable
Schedsvc.mofNot Applicable2,25018-Dec-200721:20Not Applicable

Additional file information for Windows Server 2008 and for Windows Vista

Additional files for all supported x86-based versions of Windows Server 2008 and Windows Vista
Collapse this tableExpand this table
File namePackage_1_for_kb956519~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,956
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_2_for_kb956519~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,794
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_3_for_kb956519~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,794
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,367
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_client~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,430
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,421
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_sc~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,422
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,425
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_server~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,430
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size2,580
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File nameX86_88f35fd8a64e5148025b85262a8b5478_31bf3856ad364e35_6.0.6001.22239_none_e359116d99189e99.manifest
File versionNot Applicable
File size709
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File nameX86_microsoft-windows-taskscheduler-service_31bf3856ad364e35_6.0.6001.22239_none_2f735018b0304d8b.manifest
File versionNot Applicable
File size116,561
Date (UTC)08-Aug-2008
Time (UTC)08:31
PlatformNot Applicable
Additional files for all supported x64-based versions of Windows Server 2008 and Windows Vista
Collapse this tableExpand this table
File nameAmd64_2845602bc35b38938df3c6c145818665_31bf3856ad364e35_6.0.6001.22239_none_39d2419c402e6be4.manifest
File versionNot Applicable
File size1,068
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File nameAmd64_microsoft-windows-taskscheduler-service_31bf3856ad364e35_6.0.6001.22239_none_8b91eb9c688dbec1.manifest
File versionNot Applicable
File size116,603
Date (UTC)08-Aug-2008
Time (UTC)07:04
PlatformNot Applicable
File namePackage_1_for_kb956519~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,197
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_2_for_kb956519~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,033
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_3_for_kb956519~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,033
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,375
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_client~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,438
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,429
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,430
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,433
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_server~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,438
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size2,598
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File nameWow64_microsoft-windows-taskscheduler-service_31bf3856ad364e35_6.0.6001.22239_none_95e695ee9cee80bc.manifest
File versionNot Applicable
File size108,847
Date (UTC)08-Aug-2008
Time (UTC)08:22
PlatformNot Applicable
Additional files for all supported Itanium-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameIa64_176a80e84e54f8aa8d6656841cc4746f_31bf3856ad364e35_6.0.6001.22239_none_527f1ed9268207b1.manifest
File versionNot Applicable
File size1,066
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File nameIa64_microsoft-windows-taskscheduler-service_31bf3856ad364e35_6.0.6001.22239_none_2f74f40eb02e5687.manifest
File versionNot Applicable
File size116,582
Date (UTC)08-Aug-2008
Time (UTC)07:08
PlatformNot Applicable
File namePackage_1_for_kb956519~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size2,028
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_2_for_kb956519~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size2,028
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_sc_0~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,425
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_sc~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,426
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,429
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File namePackage_for_kb956519_server~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,434
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size1,922
Date (UTC)08-Aug-2008
Time (UTC)20:24
PlatformNot Applicable
File nameWow64_microsoft-windows-taskscheduler-service_31bf3856ad364e35_6.0.6001.22239_none_95e695ee9cee80bc.manifest
File versionNot Applicable
File size108,847
Date (UTC)08-Aug-2008
Time (UTC)08:22
PlatformNot Applicable

STATUS

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

MORE INFORMATION

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Properties

Article ID: 956519 - Last Review: October 8, 2011 - Revision: 2.0
APPLIES TO
  • Windows Vista Starter
  • Windows Vista Home Premium
  • Windows Vista Home Basic
  • Windows Vista Enterprise
  • Windows Vista Business
  • Windows Vista Ultimate
  • Windows Vista Business 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Service Pack 1
  • Windows Server 2008 Standard
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
  • Windows Server 2008 Standard without Hyper-V
  • Windows Web Server 2008
Keywords: 
kbautohotfix kbexpertisebeginner kbexpertiseinter kbwinserv2003postsp2fix kbbug kbfix kbqfe KB956519

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