Scheduled tasks may not run and generate an exit code of 80


Tasks that you have scheduled to run by using the Scheduled Tasks tool in Control Panel, the Schtasks.exe command-line tool, or the "at" command may not run at the scheduled time. When this occurs, the Scheduled Tasks log shows that the task did not work with an exit code of 80 (ERROR_WAIT_NO_CHILDREN).


Service pack information

To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
322389 How to obtain the latest Windows XP service pack

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: 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.
The English version of this fix has the file attributes (or later) 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 tool in Control Panel.

Date Time Version Size File name
14-Jan-2003 00:59 5.1.2600.1156 251,392 Mstask.dll
13-Jan-2003 23:45 5.1.2600.1156 9,728 Mstinit.exe
14-Jan-2003 00:59 5.1.2600.1156 162,816 Schedsvc.dll


To work around this problem, disable the Human Interface Device Access service (the HID Input service), and then restart the computer.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
This problem was first corrected in Microsoft Windows XP Service Pack 2.

Artikel-id: 812400 - Laatst bijgewerkt: 20 jun. 2014 - Revisie: 1