Run native program saved in byte array in .net

Hello,

I programing .net application which run secont native program saved in byte array and I do not know How I run this nativ program.  Managed .net program saved in byte array I am run thus and successfully:

public void RunProg(byte [] byteArray)
  {
      var program = Assembly.Load(byteArray);
      var returnValue = program.EntryPoint.Invoke(null, null);
  }

How do I run native program saved in byte array in c# and .net please ?

Thanks