错误0x80040154与cocreateinstance [英] Error 0x80040154 with cocreateinstance

问题描述

我正在创建IQueryCancelAutoPlay的实例。它一直都失败了。

I am creating the instance of IQueryCancelAutoPlay. It failed all the time.

IQueryCancelAutoPlay *cancelAP;

HRESULT hr = CoCreateInstance(__uuidOf(QueryCancelAutoPlay), NULL, CLSCTX_ALL, (void **) &cancelAP);

if (SUCCEEDED(hr)) {
  printf("Success\n");
  cancelAP->Release();
}
else {  // it failed
   printf("Failed: 0x%0x\n", hr);
}

What I have tried:

Just looking around on Google, many articles are stating that this happened because I am missing one important dll, specifically "ATL.dll or ATL70.dll";

ATL.dll is in my Windows\system32;

ATL70.dll is not where to be found. 

I will appreciate help from anybody that had solved this problome.

推荐答案

根据本文 [ ^ ]，ATL.dll不仅必须在system32目录中，而且应该使用regsvr32.exe实用程序注册：

According to this article[^], ATL.dll not only has to be in system32 directory, but it should be registered using regsvr32.exe utility:

regsvr32 ATL.dll

您是否已尝试过？

Did you try that already?

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