if (SUCCEEDED(OleInitialize(NULL)))
{
  IWebBrowser2* pBrowser2;

  CoCreateInstance(CLSID_InternetExplorer, NULL, CLSCTX_LOCAL_SERVER, 
  IID_IWebBrowser2, (void**)&pBrowser2);
  if (pBrowser2)
  {
  VARIANT vEmpty;
  VariantInit(&vEmpty);

  BSTR bstrURL = SysAllocString(L"http://microsoft.com");

  HRESULT hr = pBrowser2->Navigate(bstrURL, &vEmpty, &vEmpty, &vEmpty, &vEmpty);
  if (SUCCEEDED(hr))
  {
  pBrowser2->put_Visible(VARIANT_TRUE); //这里参数改为“VARIANT_FALSE”就是隐藏IE 不知道是不是你说的“后台”
  }
  else
  {
  pBrowser2->Quit();
  }

  SysFreeString(bstrURL);
  pBrowser2->Release();
  }

  OleUninitialize();
}

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