public AddInServerWorker CreateDomain(AddInToken token, PermissionSet permissionSet) { AppDomain domain; AppDomainSetup setup = new AppDomainSetup(); setup.ApplicationBase = Path.GetDirectoryName(token._addin.Location); setup.ConfigurationFile = token._addin.Location + ".config"; Assembly sysCore = typeof(AddInActivator).Assembly; domain = AppDomain.CreateDomain(token.Name, AppDomain.CurrentDomain.Evidence, setup, permissionSet, AddInActivator.CreateStrongName(sysCore)); // Grant full trust to System.Core.dll // Ensure we load System.Core.dll in this new AD. domain.Load(sysCore.FullName); ObjectHandle workerHandle = Activator.CreateInstance(domain, sysCore.FullName, typeof(AddInServerWorker).FullName); AddInServerWorker server = (AddInServerWorker)workerHandle.Unwrap(); server.AddInServer = this; Interlocked.Increment(ref _addInAppDomains); return(server); }