将托管DLL注入.net 4.0应用程序

当我尝试这样做.net 4.0应用程序总是崩溃.

Bootloader C：

#include "MscoreE.h"

    void StartTheDotNetRuntime()
    {
        // Bind to the CLR runtime..
        ICLRRuntimeHost *pClrHost = NULL;
        HRESULT hr = CorBindToRuntimeEx(
        NULL,L"wks",CLSID_CLRRuntimeHost,IID_ICLRRuntimeHost,(PVOID*)&pClrHost);

        hr = pClrHost->Start();

        // Okay,the CLR is up and running in this (prevIoUsly native) process.
        // Now call a method on our managed C# class library.
        DWORD dwRet = 0;
        hr = pClrHost->ExecuteInDefaultAppDomain(
             L"payload.dll",L"MyNamespace.MyClass",L"MyMethod",L"MyParameter",&dwRet);

        // Optionally stop the CLR runtime (we Could also leave it running)
        hr = pClrHost->Stop();

       // Don't forget to clean up.
       pClrHost->Release();
    }

有效载荷C#：

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

    namespace MyNamespace
    {
       public class MyClass
       {
          // This method will be called by native code inside the target process...
          public static int MyMethod(String pwzArgument)
         {
             MessageBox.Show("Hello World");
             return 0;
         }

       }
    }

我试过使用下面的修复程序,但没有用,有什么想法吗？
固定？？：

hr = pMetaHost->GetRuntime(L"v4.0.30319",IID_ICLRRuntimeInfo,(LPVOID*)&lpRuntimeInfo);