Trigger a scheduled task "At task creation/modification" schtasks

Question

I am creating a schedules task to run just before it's created and deleted after it runs.

I am using the tool, schtasks to create the scheduled task, but i havent found the parameter to run the task "At task creation/modification"

schtasks /create /TN "Install Bpm" /SC ONCE /TR "C:\windows\system32\calc.exe -i silent" /Z

My question is; how can I create a scheduled task via command line, with the trigger “At task creation/modification".

score 1 · Answer 1 · answered Aug 15 '16 at 03:43

What you are asking for is really only available using the AT command, as it is designed to perform single-action tasks.

You need to use the /Create to build the task from the command line.

Then you need to /Run the task by its /TN name.

Once the task is complete, the task can call the /Delete command against its own /TN name within the task to clean up after itself.

score 1 · Answer 2 · answered Nov 18 '19 at 02:21

1

You cannot create a scheduled task via command line, with the trigger "At task creation/modification". This is a security feature to prevent malwares from spawning new tasks in the background.

Not every options are available with schtasks and it is by design.

answered Nov 18 '19 at 02:21

scavenger

113
4

Actually, you can if you import a task via XML definition file using command line. – Steve Bauman Dec 06 '19 at 01:49

score 0 · Answer 3 · answered Jun 30 '23 at 15:22

One can accomplish this using the MSFT_TaskRegistrationTrigger class. Here's a minimal example of how to do so using PowerShell:

Register-ScheduledTask `
    -Action '<PLACEHOLDER>' `
    -TaskName '<PLACEHOLDER>' `
    -Trigger (Get-CimClass `
        -ClassName 'MSFT_TaskRegistrationTrigger' `
        -Namespace 'Root/Microsoft/Windows/TaskScheduler');

Trigger a scheduled task "At task creation/modification" schtasks

3 Answers3