DLL to byte [], byte [] to String, String to byte []

Program.cs

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

namespace ConsoleApplication
{
    public class Program
    {
        public void Main(string[] args)
        {
            Console.WriteLine(Path.GetTempPath());
            string dllPath = String.Format("{0}/PigDll.dll", Path.GetTempPath());

            // From Dll to byte array
            byte[] buffer = System.IO.File.ReadAllBytes(dllPath);

            // From byte array to string
            string s = System.Text.Encoding.UTF8.GetString(buffer, 0, buffer.Length);

            // From string to byte array
            byte[] buffer2 = System.Text.Encoding.UTF8.GetBytes(s);
            Console.WriteLine(buffer2.Length);
        }
    }
}