Event ID 701 — Task Scheduler Backward Compatible Module Status
Applies To: Windows Server 2008
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The backward compatibility module is used by Task Scheduler to register and run tasks that were created to run on Windows Server 2003, Windows XP, and Windows 2000.
Event Details
| Product: | Windows Operating System |
| ID: | 701 |
| Source: | Microsoft-Windows-TaskScheduler |
| Version: | 6.0 |
| Symbolic Name: | COMPAT_START_FAILED |
| Message: | Task Scheduler service failed to start Task Compatibility module. Tasks may not be able to register on previous Window versions. Additional Data: Error Value: %1. |
Resolve
Use error code to identify the action failure
A failure occurred when the Task Scheduler attempted to start the compatibility module for Task Scheduler 1.0 tasks. Be aware that older tasks using the compatibility module may not register or run.
Use the error code provided in the failure event (event 701 or 703) to further identify possible reasons for the failure. To find a description of the error code provided in the event, convert the error code into decimal form and then find the error code in the list of system error codes on https://go.microsoft.com/fwlink/?LinkId=102313.
Verify
Verify the task compatibility module is started by checking for event 700 in the Microsoft-Windows-TaskScheduler/Operational event log. This task indicates the task compatibility module has started. Then verify that Task Scheduler 1.0 tasks are registered and run correctly.
To verify that event 700 is in the Event Viewer:
1. Click the Start button and type **Event Viewer **in the Start Search box.
2. Select the Event Viewer program to start Event Viewer.
3. Locate the Microsoft-Windows-TaskScheduler/Operational event log by expanding the Applications and Services Logs folder, expanding the Microsoft folder, expanding the Windows folder, expanding the TaskScheduler folder, and then clicking the Operational event log.
4. Verify that event 700 has been logged in the event log.
To verify that Task Scheduler 1.0 tasks are registered and run correctly:
1. Click the Start button and type **Task Scheduler **in the Start Search box.
2. Select the Task Scheduler program to start Task Scheduler.
3. Click the **Create Task **action in Task Scheduler.
4. On the General tab, set the Configure for box to Windows Server 2003, Windows XP, or Windows 2000. This configures the task to be a Task Scheduler 1.0 task.
5. On the General tab, specify a name for the task. On the Actions tab, specify an action for the task. On the Triggers tab, click New, and define a trigger for the task. For more information about triggers and actions, see the Task Scheduler online Help at https://go.microsoft.com/fwlink/?LinkId=92609.
6. Click OK.
7. Verify that no errors are reported when the task is created by selecting the newly created task and then clicking the History tab. Verify that it does not show any partial registration failures for the task.