SCHTASKS /parameter [arguments] 
e.g., 
SCHTASKS /End [/S <system> [/U <username> [/P [<password>]]]] /TN taskname

Description:
    Enables an administrator to create, delete, query, change, run and
    end scheduled tasks on a local or remote system. 

Parameter List:
    /Create         Creates a new scheduled task.

    /Delete         Deletes the scheduled task(s).

    /Query          Displays all scheduled tasks.

    /Change         Changes the properties of scheduled task.

    /Run            Runs the scheduled task on demand.

    /End            Stops the currently running scheduled task.

    /ShowSid        Shows the security identifier corresponding to a scheduled task name.

    /?              Displays this help message.

Examples:
    SCHTASKS 
    SCHTASKS /?
    SCHTASKS /Run /?
    SCHTASKS /End /?
    SCHTASKS /Create /?
    SCHTASKS /Delete /?
    SCHTASKS /Query  /?
    SCHTASKS /Change /?
    SCHTASKS /ShowSid /?