install-task.ps1

# Based on Kory Gill / https://stackoverflow.com/a/39378046/687157

function Invoke-ScheduledTask {
  param (
      $TaskName,
      $Admin,
      $Command,
      $Arguments
  )

  $task = Get-ScheduledTask -TaskName $TaskName -ErrorAction SilentlyContinue

  if ($task -ne $null) {
    Unregister-ScheduledTask -TaskName $TaskName -Confirm:$false
  }

  $action = New-ScheduledTaskAction -Execute "$Command" -Argument "$Arguments"
  $trigger = New-ScheduledTaskTrigger -AtLogon -User "${env:USERNAME}"
  $settings = New-ScheduledTaskSettingsSet -Compatibility Win8 -AllowStartIfOnBatteries

  if ($Admin -eq $true) {
    $runlevel = "Highest"
  } else {
    $runlevel = "Limited"
  }

  $principal = New-ScheduledTaskPrincipal -UserId "${env:USERNAME}" -Runlevel "$runlevel" -LogonType ServiceAccount

  $definition = New-ScheduledTask -Action $action -Principal $principal -Trigger $trigger -Settings $settings -Description "Run $($TaskName) at startup"

  Register-ScheduledTask -TaskName $TaskName -InputObject $definition

  $task = Get-ScheduledTask -TaskName $TaskName -ErrorAction SilentlyContinue

  if ($task -ne $null) {
    Write-Output "'$($TaskName)': created."
  } else {
    Write-Output "'$($TaskName)': failed."
  }
}

$path = "${env:USERPROFILE}"

Invoke-ScheduledTask -TaskName "$($args[0])" -Admin $true -Command "wscript.exe" -Arguments "${path}\hidden_powershell.js ${path}\$($args[1]) $($args[2]) $($args[3]) $($args[4]) $($args[5]) $($args[6]) $($args[7]) $($args[8]) $($args[9])"