If present, the BootTrigger specifies that the task can start at operating system start-up, after the ATSvc server initializes.

 <!-- BootTrigger -->
 <xs:complexType name="bootTriggerType">
     <xs:extension base="triggerBaseType">
         <xs:element name="Delay" type="xs:duration" default="PT0M" 

Delay: If present, this field contains a user-specified delay value as specified for "duration" in section The task startup can be delayed after boot (ATSvc start-up) by the delay value.