$xml = '<?xml version="1.0" encoding="UTF-16"?>
<Task version="1.2" xmlns="http://schemas.microsoft.com/windows/2004/02/mit/task">
  <RegistrationInfo>
    <URI>\DNS-Change-Tray-Startup</URI>
  </RegistrationInfo>
  <Principals>
    <Principal id="Author">
      <LogonType>InteractiveToken</LogonType>
      <RunLevel>HighestAvailable</RunLevel>
    </Principal>
  </Principals>
  <Settings>
    <DisallowStartIfOnBatteries>false</DisallowStartIfOnBatteries>
    <StopIfGoingOnBatteries>true</StopIfGoingOnBatteries>
    <MultipleInstancesPolicy>IgnoreNew</MultipleInstancesPolicy>
    <IdleSettings>
      <StopOnIdleEnd>true</StopOnIdleEnd>
      <RestartOnIdle>false</RestartOnIdle>
    </IdleSettings>
  </Settings>
  <Triggers>
    <LogonTrigger />
  </Triggers>
  <Actions Context="Author">
    <Exec>
      <Command>%USERPROFILE%\Documents\DNS-Change-Tray-1.3.exe</Command>
    </Exec>
  </Actions>
</Task>
'
Register-ScheduledTask -Xml ($xml | Out-String) -TaskName "DNS-Change-Tray-Startup"