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.

Consider the following scenario:

• You create a scheduled task on a computer that is running Windows Server 2008 or Windows Vista Service Pack 1 (SP1).
• One or more command-line arguments in this scheduled task are enclosed in quotation marks.

In this scenario, the scheduled task does not run as expected. Additionally, a value of 0×1 appears in the Last Run Result column.

For example, assume that you create a scheduled task by running the following command-line argument:

schtasks /create /tn "Test Scheduled Task" /tr "c:\temp.bat \"1-Jan-70 8:00:00\"" /sc daily /st 03:15:00 /ru System

The scheduled task fails after it starts at 03:15. However, if you delete the quotation marks around “1-Jan-70 8:00:00,” the scheduled task runs successfully.

Note: The issue does not occur in Windows Vista or in Windows Server 2003.

After you configure a scheduled task in Windows Vista, the Task Scheduler does not wake Windows Vista from sleep to run the scheduled task as expected. You experience this issue if you use the Create Basic Task Wizard to create the scheduled task.

Note: The following information in Windows Vista Help indicates that this functionality is supported:
You can also set a condition that tells the task to wake the computer from sleep mode to run the task when the trigger is activated.

Consider the following scenario. On a Windows Vista-based computer, you create a task in Task Scheduler. Then, you enable the Run task as soon as possible after a scheduled start is missed setting for the task. If the computer was turned off when the task was scheduled to run, the task will run as expected when you restart Windows Vista. However, if the computer was in sleep mode when the task was scheduled to run, the task does not run at the scheduled time. Additionally, the task does not run as expected when you wake the computer.