Duplicate triggers are generated incorrectly in scheduled tasks in Windows Vista or in Windows Server 2008

Article translations Article translations
Article ID: 2617046 - View products that this article applies to.
Expand all | Collapse all

On This Page

Symptoms

Consider the following scenario:
  • You install security update 2305420, which is documented in security bulletin MS10-092, on a computer that is running Windows Vista or Windows Server 2008.
  • You create a scheduled task which has at least one trigger.
  • You disable and then enable the scheduled task.
In this scenario, duplicate triggers are generated incorrectly in the scheduled task. The duplicate triggers may cause various issues.

Most of the time, the following events are logged in the Microsoft-Windows-TaskScheduler/Operational log:
Log Name: Microsoft-Windows-TaskScheduler/Operational
Source: Microsoft-Windows-TaskScheduler
Date: date
Event ID: 101
Task Category: Task Start Failed
Level: Error
Keywords:
User: SYSTEM
Computer: computer name
Description:
Task Scheduler failed to start "name" task for user "NT AUTHORITY\System". Additional Data: Error Value: 2147750687.

Log Name: Microsoft-Windows-TaskScheduler/Operational
Source: Microsoft-Windows-TaskScheduler
Date: date
Event ID: 322
Task Category: Launch request ignored, instance already running
Level: Warning
Keywords:
User: SYSTEM
Computer: computer name
Description:
Task Scheduler did not launch task "name" because instance "GUID" of the same task is already running.

Cause

This issue occurs because of an issue introduced by security update 2305420. This causes duplicate triggers to be generated incorrectly in the scheduled task.

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 the problem described in this article. 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.

Note
This hotfix prevents this issue. This hotfix does not resolve the issue if the issue has already occurred. To update the trigger information in the scheduled task, follow these steps:
  1. Right-click the task, and then select Properties.
  2. Select the Triggers tab, click Edit... , clear the Enable check box, and then click OK.
  3. Select the Triggers tab, click Edit..., select the Enable check box, and then click OK.
  4. Close the Properties window.


Prerequisites

To apply this hotfix, you must be running one of the following operating systems:
  • Windows Vista Service Pack 2 (SP2)
  • Windows Server 2008 Service Pack 2 (SP2)
For more information about how to obtain a Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista service pack
For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
968849 How to obtain the latest service pack for Windows Server 2008

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

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 global 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 Vista and Windows Server 2008 file information notes
Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • The files that apply to a specific product, SR_Level (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
    VersionProductSR_LevelService branch
    6.0.600 2 . 22xxxWindows Vista and Windows Server 2008SP2LDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 and for Windows Vista" section. MUM files and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Tmm.dll6.0.6002.227161,298,43215-Sep-201107:13x86
Hashcleanup.exe6.0.6002.227169,72814-Sep-201115:19x86
Taskeng.exe6.0.6002.22716171,52014-Sep-201115:20x86
Taskeng.mofNot applicable2,25407-Jun-201116:29Not applicable
Schedsvc.dll6.0.6002.22716602,11215-Sep-201107:11x86
Schedsvc.mofNot applicable2,25007-Jun-201116:29Not applicable
Wmicmiplugin.dll6.0.6002.22716345,60015-Sep-201107:14x86
For all supported x64-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Tmm.dll6.0.6002.227161,319,42414-Sep-201115:29x64
Hashcleanup.exe6.0.6002.2271610,24014-Sep-201113:35x64
Taskeng.exe6.0.6002.22716267,77614-Sep-201113:36x64
Taskeng.mofNot applicable2,25415-Mar-201105:07Not applicable
Schedsvc.dll6.0.6002.22716856,06414-Sep-201115:28x64
Schedsvc.mofNot applicable2,25015-Mar-201105:07Not applicable
Wmicmiplugin.dll6.0.6002.22716500,22414-Sep-201115:29x64
Schedsvc.mofNot applicable2,25007-Jun-201116:29Not applicable
Tmm.dll6.0.6002.227161,298,43215-Sep-201107:13x86
Taskeng.exe6.0.6002.22716171,52014-Sep-201115:20x86
Taskeng.mofNot applicable2,25407-Jun-201116:29Not applicable
For all supported IA-64–based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Hashcleanup.exe6.0.6002.2271620,48014-Sep-201113:32IA-64
Taskeng.exe6.0.6002.22716523,26414-Sep-201113:33IA-64
Taskeng.mofNot applicable2,25415-Mar-201106:01Not applicable
Schedsvc.dll6.0.6002.227161,417,72814-Sep-201115:14IA-64
Schedsvc.mofNot applicable2,25015-Mar-201106:01Not applicable
Wmicmiplugin.dll6.0.6002.22716986,62414-Sep-201115:15IA-64
Schedsvc.mofNot applicable2,25007-Jun-201116:29Not applicable
Taskeng.exe6.0.6002.22716171,52014-Sep-201115:20x86
Taskeng.mofNot applicable2,25407-Jun-201116:29Not 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
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2305420 MS10-092: Vulnerability in Task Scheduler could allow for elevation of privilege

Additional file information

Additional file information for Windows Vista and for Windows Server 2008

Additional files for all supported x86-based versions of Windows Vista and of Windows Server 2008
Collapse this tableExpand this table
File nameUpdate.mum
File versionNot applicable
File size4,025
Date (UTC)15-Sep-2011
Time (UTC)10:37
PlatformNot applicable
File nameX86_49a5be21f805c91b9de4182a9df628f9_31bf3856ad364e35_6.0.6002.22716_none_fced742d1f4c678e.manifest
File versionNot applicable
File size1,406
Date (UTC)15-Sep-2011
Time (UTC)10:37
PlatformNot applicable
File nameX86_60d546cee0dc885d06598a0a47c097c3_31bf3856ad364e35_6.0.6002.22716_none_6ca4f7a68a0e4a57.manifest
File versionNot applicable
File size700
Date (UTC)15-Sep-2011
Time (UTC)10:37
PlatformNot applicable
File nameX86_d23e1a74a05e8d97f4c03d4f549fc1d5_31bf3856ad364e35_6.0.6002.22716_none_03195bb2c0a9ffae.manifest
File versionNot applicable
File size713
Date (UTC)15-Sep-2011
Time (UTC)10:37
PlatformNot applicable
File nameX86_microsoft-windows-mobilepc-tmm_31bf3856ad364e35_6.0.6002.22716_none_16ca8d88d59887b4.manifest
File versionNot applicable
File size10,104
Date (UTC)15-Sep-2011
Time (UTC)07:41
PlatformNot applicable
File nameX86_microsoft-windows-t..ched-hashcleanup-gc_31bf3856ad364e35_6.0.6002.22716_none_55cbf8ae7f7ff8b7.manifest
File versionNot applicable
File size3,210
Date (UTC)15-Sep-2011
Time (UTC)07:43
PlatformNot applicable
File nameX86_microsoft-windows-taskscheduler-engine_31bf3856ad364e35_6.0.6002.22716_none_e8179ec7d520fc9f.manifest
File versionNot applicable
File size8,325
Date (UTC)15-Sep-2011
Time (UTC)07:53
PlatformNot applicable
File nameX86_microsoft-windows-taskscheduler-service_31bf3856ad364e35_6.0.6002.22716_none_316c702aad490800.manifest
File versionNot applicable
File size116,813
Date (UTC)15-Sep-2011
Time (UTC)07:52
PlatformNot applicable
File nameX86_microsoft-windows-wmi-cmiplugin_31bf3856ad364e35_6.0.6002.22716_none_bf6dde80424e5bfe.manifest
File versionNot applicable
File size6,171
Date (UTC)15-Sep-2011
Time (UTC)07:51
PlatformNot applicable
Additional files for all supported x64-based versions of Windows Vista and of Windows Server 2008
Collapse this tableExpand this table
File nameAmd64_01262b02f1d9deace701bdb5d7e3968c_31bf3856ad364e35_6.0.6002.22716_none_213a184124c6d352.manifest
File versionNot applicable
File size717
Date (UTC)15-Sep-2011
Time (UTC)10:37
PlatformNot applicable
File nameAmd64_6595678ecb5d70d52755d049b80f145f_31bf3856ad364e35_6.0.6002.22716_none_ae357b7153c606a4.manifest
File versionNot applicable
File size1,048
Date (UTC)15-Sep-2011
Time (UTC)10:37
PlatformNot applicable
File nameAmd64_6fc4e945fab71a2b35d93892d378d553_31bf3856ad364e35_6.0.6002.22716_none_eb2efe9a3aa6c4f3.manifest
File versionNot applicable
File size2,121
Date (UTC)15-Sep-2011
Time (UTC)10:37
PlatformNot applicable
File nameAmd64_microsoft-windows-mobilepc-tmm_31bf3856ad364e35_6.0.6002.22716_none_72e9290c8df5f8ea.manifest
File versionNot applicable
File size10,444
Date (UTC)14-Sep-2011
Time (UTC)15:45
PlatformNot applicable
File nameAmd64_microsoft-windows-t..ched-hashcleanup-gc_31bf3856ad364e35_6.0.6002.22716_none_b1ea943237dd69ed.manifest
File versionNot applicable
File size3,530
Date (UTC)14-Sep-2011
Time (UTC)15:45
PlatformNot applicable
File nameAmd64_microsoft-windows-taskscheduler-engine_31bf3856ad364e35_6.0.6002.22716_none_44363a4b8d7e6dd5.manifest
File versionNot applicable
File size8,359
Date (UTC)14-Sep-2011
Time (UTC)15:49
PlatformNot applicable
File nameAmd64_microsoft-windows-taskscheduler-service_31bf3856ad364e35_6.0.6002.22716_none_8d8b0bae65a67936.manifest
File versionNot applicable
File size116,855
Date (UTC)14-Sep-2011
Time (UTC)15:48
PlatformNot applicable
File nameAmd64_microsoft-windows-wmi-cmiplugin_31bf3856ad364e35_6.0.6002.22716_none_1b8c7a03faabcd34.manifest
File versionNot applicable
File size6,193
Date (UTC)14-Sep-2011
Time (UTC)15:48
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size4,059
Date (UTC)15-Sep-2011
Time (UTC)10:37
PlatformNot applicable
File nameWow64_microsoft-windows-taskscheduler-service_31bf3856ad364e35_6.0.6002.22716_none_97dfb6009a073b31.manifest
File versionNot applicable
File size109,099
Date (UTC)15-Sep-2011
Time (UTC)07:20
PlatformNot applicable
File nameX86_microsoft-windows-mobilepc-tmm_31bf3856ad364e35_6.0.6002.22716_none_16ca8d88d59887b4.manifest
File versionNot applicable
File size10,104
Date (UTC)15-Sep-2011
Time (UTC)07:41
PlatformNot applicable
File nameX86_microsoft-windows-taskscheduler-engine_31bf3856ad364e35_6.0.6002.22716_none_e8179ec7d520fc9f.manifest
File versionNot applicable
File size8,325
Date (UTC)15-Sep-2011
Time (UTC)07:53
PlatformNot applicable
Additional files for all supported IA-64–based versions of Windows Server 2008
Collapse this tableExpand this table
File nameIa64_096a80525d6005492499b86c85f54e24_31bf3856ad364e35_6.0.6002.22716_none_611992733270c671.manifest
File versionNot applicable
File size715
Date (UTC)15-Sep-2011
Time (UTC)10:37
PlatformNot applicable
File nameIa64_fa45293d8a54d3316338502dc56b253f_31bf3856ad364e35_6.0.6002.22716_none_a752c3a53dd1141b.manifest
File versionNot applicable
File size2,117
Date (UTC)15-Sep-2011
Time (UTC)10:37
PlatformNot applicable
File nameIa64_microsoft-windows-t..ched-hashcleanup-gc_31bf3856ad364e35_6.0.6002.22716_none_55cd9ca47f7e01b3.manifest
File versionNot applicable
File size3,525
Date (UTC)14-Sep-2011
Time (UTC)15:25
PlatformNot applicable
File nameIa64_microsoft-windows-taskscheduler-engine_31bf3856ad364e35_6.0.6002.22716_none_e81942bdd51f059b.manifest
File versionNot applicable
File size8,342
Date (UTC)14-Sep-2011
Time (UTC)15:27
PlatformNot applicable
File nameIa64_microsoft-windows-taskscheduler-service_31bf3856ad364e35_6.0.6002.22716_none_316e1420ad4710fc.manifest
File versionNot applicable
File size116,834
Date (UTC)14-Sep-2011
Time (UTC)15:27
PlatformNot applicable
File nameIa64_microsoft-windows-wmi-cmiplugin_31bf3856ad364e35_6.0.6002.22716_none_bf6f8276424c64fa.manifest
File versionNot applicable
File size6,182
Date (UTC)14-Sep-2011
Time (UTC)15:26
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,449
Date (UTC)15-Sep-2011
Time (UTC)10:37
PlatformNot applicable
File nameWow64_microsoft-windows-taskscheduler-service_31bf3856ad364e35_6.0.6002.22716_none_97dfb6009a073b31.manifest
File versionNot applicable
File size109,099
Date (UTC)15-Sep-2011
Time (UTC)07:20
PlatformNot applicable
File nameX86_microsoft-windows-taskscheduler-engine_31bf3856ad364e35_6.0.6002.22716_none_e8179ec7d520fc9f.manifest
File versionNot applicable
File size8,325
Date (UTC)15-Sep-2011
Time (UTC)07:53
PlatformNot applicable

Properties

Article ID: 2617046 - Last Review: December 28, 2012 - Revision: 3.0
Applies to
  • Windows Vista Starter
  • Windows Vista Home Premium
  • Windows Vista Home Basic
  • Windows Vista Business
  • Windows Vista Enterprise
  • Windows Vista Ultimate
  • Windows Server 2008 Foundation
  • Windows Server 2008 Standard
  • Windows Server 2008 Standard without Hyper-V
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Datacenter without Hyper-V
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseinter KB2617046

Give Feedback

 

Contact us for more help

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