C# &引用；“请求失败”；在部分受信任的AppDomain中调用WCF操作时

我有一个完全信任的.NET4.5应用程序，它创建了一个部分信任的AppDomain。我正在尝试通过名为管道的WCF与此域通信

我已成功创建服务并连接到它。然而，当我尝试调用服务的任何方法时，我得到了一个不太有用的错误：

“System.Security.SecurityException”类型的未处理异常 发生在System.ServiceModel.Internals.dll中

其他信息：请求失败

就这些，没有例外

正如调用堆栈所建议的，异常是从受限AppDomain引发的。毫不奇怪，如果我以完全信任的方式创建域，问题就会消失

包含服务的程序集在受限AppDomain中完全受信任（请参阅下面的代码）。它可以创建管道，为什么我尝试使用它时它会阻塞？这是一个诱使它在接收服务请求时声明其权限的问题吗

完全信任代码：

---

我的答案是抛弃WCF，使用老式的

MarshallByRefObject

来实现我的接口。现在一切都很好

尽管MSDN文档中有关于远程处理过时的可怕警告，但对于进程内通信来说，它仍然是一个非常好的选择（有时是唯一的选择…）。它也不会很快消失

>   System.ServiceModel.Internals.dll!System.Runtime.Fx.IOCompletionThunk.UnhandledExceptionFrame(uint error, uint bytesRead, System.Threading.NativeOverlapped* nativeOverlapped) + 0x75 bytes 
    mscorlib.dll!System.Threading._IOCompletionCallback.PerformIOCompletionCallback(uint errorCode, uint numBytes, System.Threading.NativeOverlapped* pOVERLAP) + 0x6e bytes    
    [Native to Managed Transition]  
    [Appdomain Transition]  
    [Native to Managed Transition]  
    kernel32.dll!@BaseThreadInitThunk@12()  + 0x12 bytes    
    ntdll.dll!___RtlUserThreadStart@8()  + 0x27 bytes   
    ntdll.dll!__RtlUserThreadStart@8()  + 0x1b bytes    

var evidence = new Evidence(null, new EvidenceBase[] { new Zone(SecurityZone.Internet) });

var setup = new AppDomainSetup() { ApplicationBase = InstallDirectory.FullName };
setup.PrivateBinPath = String.Join(Path.PathSeparator.ToString(), "Episodes", "bin");

var permissions = new PermissionSet(null);
permissions.AddPermission(new SecurityPermission(SecurityPermissionFlag.Execution));

GameDomain = AppDomain.CreateDomain("Bulletin.Game", evidence, setup, permissions, 
    typeof(Shared.IBulletinGame).Assembly.Evidence.GetHostEvidence<StrongName>(),
    typeof(Bulletin.Game).Assembly.Evidence.GetHostEvidence<StrongName>()
    );

Activator.CreateInstanceFrom(GameDomain, Path.Combine(InstallDirectory.FullName, "bin", "Bulletin.dll"), "Bulletin.Game");

GameService = new ChannelFactory<Shared.IBulletinGame>(
    new NetNamedPipeBinding(),
    new EndpointAddress("net.pipe://localhost/Bulletin/Game")
    ).CreateChannel();

GameService.Test(); // throws exception

[assembly: AllowPartiallyTrustedCallers()]

[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]
public class Game : Shared.IBulletinGame
{
    // The constructor completes successfully.
    [SecurityCritical]
    public Game()
    {
        Host = new ServiceHost(this);
        Host.AddServiceEndpoint(typeof(Shared.IBulletinGame), new NetNamedPipeBinding(), "net.pipe://localhost/Bulletin/Game");
        Host.Open();
    }

    // Control doesn't even reach this method when I try to remotely call it,
    // unless I give the AppDomain full trust.
    public void Test()
    {
        System.Diagnostics.Debugger.Break();
    }
}