Be aware, that executables or assemblies loaded in such manner share main application (host) domain. This implies that if there is any reference needed other from GAC (GlobalAssemblyCache) or host working directory - you will need to handle
AppDomain.CurrentDomain.AssemblyResolve event or create new
AppDomain for example.
Sample code:
using System;
using System.IO;
using System.Reflection;
namespace ExecutableMemoryStream
{
class Program
{
static void Main(string[] args)
{
try
{
if (args.Length == 0)
throw new TargetParameterCountException(
"Expected at least one parameter containing executable path.");
using (FileStream fileStream = new FileStream(args[0], FileMode.Open))
using (BinaryReader reader = new BinaryReader(fileStream))
{
byte[] bin = reader.ReadBytes(Convert.ToInt32(fileStream.Length));
Assembly assembly = Assembly.Load(bin);
MethodInfo method = assembly.EntryPoint;
if (method != null)
{
object o = assembly.CreateInstance(method.ReflectedType.Name);
if (method.GetParameters().Length == 0)
method.Invoke(o, new object[0]);
else
{
string[] parameters = new string[args.Length - 1];
for (int i = 1; i < args.Length; i++)
parameters[i - 1] = args[i];
method.Invoke(o, new[] { parameters });
}
}
}
}
catch (Exception ex)
{
Console.BackgroundColor = ConsoleColor.Red;
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine();
Console.WriteLine(ex.Message.PadRight(80));
Console.BackgroundColor = ConsoleColor.Black;
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine("Hit 'd' for details. Any other key will terminate application.");
if (Console.ReadKey(true).KeyChar == 'd')
{
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine();
Console.WriteLine(ex.StackTrace);
Console.ReadKey();
}
}
}
}
}
