旗舰版win7系统中GraphEdit执行Loading a Graph From an External Process失败对策

操作系统：旗舰版win7

DirectShow SDK: 9.0

IDE环境：VS2008

以下代码参考MSDN：

 HRESULT AddToRot(IUnknown *pUnkGraph, DWORD *pdwRegister)
 {
     IMoniker * pMoniker = NULL;
     IRunningObjectTable *pROT = NULL;

     if (FAILED(GetRunningObjectTable(, &pROT)))
     {
         return E_FAIL;
     }

     const size_t STRING_LENGTH = ;

     WCHAR wsz[STRING_LENGTH];
     StringCchPrintfW(wsz, STRING_LENGTH, L"FilterGraph %08x pid %08x", (DWORD_PTR)pUnkGraph, GetCurrentProcessId());

     HRESULT hr = CreateItemMoniker(L"!", wsz, &pMoniker);
     if (SUCCEEDED(hr))
     {
         hr = pROT->Register(ROTFLAGS_REGISTRATIONKEEPSALIVE, pUnkGraph,
             pMoniker, pdwRegister);
         pMoniker->Release();
     }
     pROT->Release();

     return hr;
 }

 void RemoveFromRot(DWORD pdwRegister)
 {
     IRunningObjectTable *pROT;
     if (SUCCEEDED(GetRunningObjectTable(, &pROT))) {
         pROT->Revoke(pdwRegister);
         pROT->Release();
     }
 }

 void main()
 {
     IGraphBuilder *pGraph;
     DWORD dwRegister;
     HRESULT hr;

     // Initialize the COM library.
     hr = CoInitialize(NULL);
     if (FAILED(hr))
     {
         printf("ERROR - Could not initialize COM library\n");
         return;
     }

     // Create the filter graph manager.
     hr = CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER,
         IID_IGraphBuilder, (void **)&pGraph);
      if(FAILED(hr))
      {
         printf("ERROR - CoCreateInstance\n");
         return ;
      }

     hr = AddToRot(pGraph, &dwRegister);

     // Rest of the application (not shown).
     while()
     {
         Sleep();
         //break;
     }

     RemoveFromRot(dwRegister);
     pGraph->Release();

     CoUninitialize();
 }

【问题】：首先运行上述VC程序，然后打开GraphEdit程序，File->Connect to Remote Graph...->出现对话框Select a remote filter graph to view...，对话框中没有任何内容。

【原因】：Windows SDK中未包含Proppage.dll

其实MSDN说的很清楚了，如下面截图。

【对策】：搜索proppage.dll发现几个地方都有proppage.dll，选择C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin下面的proppage.dll,在命令行窗口执行

cd C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin

regsvr32 proppage.dll

将proppage.dll注册到Windows SDK即可。

【验证】接下来重新执行上面的步骤：首先运行上述VC程序，然后打开GraphEdit程序，File->Connect to Remote Graph...->出现对话框Select a remote filter graph to view...，对话框中出现