不知为啥获得CLSID_InternetExplorer组件的IID_IWebBrowser2接口为空
OleInitialize(NULL)
IWebBrowser2* pBrowser2;
CoCreateInstance(CLSID_InternetExplorer, NULL, CLSCTX_LOCAL_SERVER,
IID_IWebBrowser2, (void**)&pBrowser2);
OleInitialize(NULL)执行正常,但为啥获得的pBrowser2接口为空呀,怎么才可以获得不为空的接口?