Programmatically creating/deleting tasks for task scheduler

Question

I'm trying to create a task (via C++) that should be executed with highest privileges, although I cannot see in the docs for Task Scheduler how to set that flag (which is available via the Task Scheduler UI).

Ideas ?

score 3 · Accepted Answer · answered Jul 05 '11 at 13:49

3

It's the ITaskDefinition::Principal property. Set RunLevel in IPrincipal to TASK_RUNLEVEL_HIGHEST.

answered Jul 05 '11 at 13:49

wj32

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Thanks! Me thinks that's just what I need :) – Robert Jul 05 '11 at 14:20

score 2 · Answer 2 · answered Oct 22 '15 at 14:48

2

Here is the code snippet how to setup run level.

IPrincipal *pPrincipal = NULL;
hr = pTask->get_Principal(&pPrincipal);
if (FAILED(hr))
    {
        printf("\nCannot get principal pointer: %x", hr);
        pRootFolder->Release();
        pTask->Release();
        CoUninitialize();
        return false;
    }
//  Set up principal run level to the highest one
hr = pPrincipal->put_RunLevel(TASK_RUNLEVEL_HIGHEST);
pPrincipal->Release();
if (FAILED(hr))
{
    printf("\nCannot put principal info: %x", hr);
    pRootFolder->Release();
    pTask->Release();
    CoUninitialize();
    return false;
}

answered Oct 22 '15 at 14:48

Aleksandar Panov

21
2

amazing, there is also the default option, `Stop the task if it is running longer than` it is automatically set to 3 days, how do i turn that off ? Thank you – Ahmed Can Unbay Feb 15 '21 at 23:36
also there is `Stop if the computer ceases to be idle` i want to get that to `0` as well, iwant my task to keep running always – Ahmed Can Unbay Feb 15 '21 at 23:40

score 2 · Answer 3 · answered Jul 05 '11 at 11:41

2

Here is an example on MSDN.

answered Jul 05 '11 at 11:41

Naszta

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score 0 · Answer 4 · answered Jul 05 '11 at 11:42

0

You may wish to explore MSDN Task Scheduler Reference. Also, check Schtasks.exe.

answered Jul 05 '11 at 11:42

Donotalo

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Programmatically creating/deleting tasks for task scheduler

4 Answers4