$code =’using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;

namespace PSDLL
{
    class Program
    {
        static void Main()
        {
           Process.Start("example.txt");
        }



    }
}’;

$code
$code | Out-File windowscodecs.cs
$path = Resolve-Path windowscodecs.cs
$compiler = "$env:windir/Microsoft.NET/Framework/v2.0.50727/csc"
&$compiler /target:library windowscodecs.cs
dir windowscodecs*