Param(
  [String]$Arguments
)

function CallScript {

  Param(
    [String]$Interpreter,
    [String]$ScriptFile,
    [String]$Arguments
  )

  [System.Diagnostics.ProcessStartInfo]$startInfo = `
    [System.Diagnostics.ProcessStartInfo]::new()
  $startInfo.FileName = $Interpreter
  $startInfo.Arguments = "$($ScriptFile) $($Arguments)"
  $startInfo.UseShellExecute = $False
  $startInfo.CreateNoWindow = $True
  $startInfo.RedirectStandardOutput = $True
  $startInfo.RedirectStandardError = $True
  [System.Diagnostics.Process]$Proc = `
    [System.Diagnostics.Process]::new()
  $Proc.StartInfo = $startInfo
  if ($Proc.Start() -eq $False) {
    Return
  }
  [System.IO.StreamReader]$stdOut = $Proc.StandardOutput
  [System.IO.StreamReader]$stdErr = $Proc.StandardError
  if (($stdOut -eq $null) -or ($stdErr -eq $null)) {
    Return
  }
  $Result = $stdOut.ReadToEnd()
  if ($Result.Length -eq 0) {
    Return $stdErr.ReadToEnd()
  } Else {
    Return $Result
  }

}

function Main {

  "PowerShell Version: " + $PSVersionTable.PSVersion.Major + "." + 
    $PSVersionTable.PSVersion.Minor + [System.Environment]::NewLine

  if ([String]::IsNullOrEmpty($($Arguments))) {
    $Arguments = """Hello World"""
  }

  $Result = CallScript `
    -Interpreter "C:\Program Files\Python\python.exe" `
    -ScriptFile "C:\Dummy\CallPythonFromPS.py" `
    -Arguments $Arguments
  $Result

  $Result = CallScript `
    -Interpreter "C:\Program Files\AutoIt\AutoIt3_x64.exe" `
    -ScriptFile "C:\Dummy\CallAutoItFromPS.au3" `
    -Arguments $Arguments
  $Result

}

Main

[Void][Console]::WriteLine("`nPress key...")
[Void][Console]::ReadKey("NoEcho,IncludeKeyDown")