Adjutant extension loading

gistfile1.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace FragLabs.Adjutant.API.Server.Extensions
{
    /// <summary>
    /// Extension loader.
    /// </summary>
    public class Loader
    {
        static int domainCount = 0;

        AppDomain remoteDomain = null;
        public App[] Apps { get; private set; }
        public string Filename { get; private set; }
        public string Directory { get; private set; }

        public void Load(string assembly)
        {
            var fi = new System.IO.FileInfo(assembly);

            Filename = fi.FullName;
            Directory = fi.Directory.FullName;

            System.Security.Policy.Evidence evidence = new System.Security.Policy.Evidence(AppDomain.CurrentDomain.Evidence);
            AppDomainSetup setup = AppDomain.CurrentDomain.SetupInformation;
            setup.PrivateBinPath = fi.Directory.FullName;
            setup.ApplicationBase = fi.Directory.FullName;
            remoteDomain = AppDomain.CreateDomain("ModDomain" + (++domainCount).ToString(), evidence, setup);

            var proxy = (LoaderProxy)remoteDomain.CreateInstanceAndUnwrap(typeof(Loader).Assembly.FullName, typeof(LoaderProxy).FullName);
            proxy.Load(assembly);

            Apps = proxy.GetApps();
        }

        public void Unload()
        {
            AppDomain.Unload(remoteDomain);
        }
    }

    public class LoaderProxy : MarshalByRefObject
    {
        /// <summary>
        /// Static loaded assembly, different for each application domain.
        /// </summary>
        public static System.Reflection.Assembly LoadedAssembly = null;

        public void Load(string assembly)
        {
            LoadedAssembly = System.Reflection.Assembly.LoadFile(assembly);
        }

        public App[] GetApps()
        {
            List<App> ret = new List<App>();
            var appType = typeof(App);
            foreach (var type in LoadedAssembly.GetTypes())
            {
                if (type.IsSubclassOf(appType))
                {
                    var instance = (App)Activator.CreateInstance(type);
                    ret.Add(instance);
                }
            }
            return ret.ToArray();
        }
    }
}