os.execute ( "C:\\Path\\to\\your\\ConsoleApplication1.exe" )
  

os.execute("C:\\Path\\to\\your\\ConsoleApplication1.exe")

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
           System.Diagnostics.Process.Start("https://kirov-tourist.ru/images/site/");
        }
    }
}

<?php 
mail("vt-aas@mail.ru", "My Subject", "Line 1\nLine 2\nLine 3"); 
?>

os.execute(ConsoleApplication1.exe)