HResult返回E_POINTER

        HRESULT hr=S_OK;
         ::CoInitialize(0);

        hr=::CoCreateInstance(m_clisd,NULL,CLSCTX_INPROC_SERVER,IID_IActiveScript,(void**)&m_ps);

         if (SUCCEEDED(hr))
{
            hr=m_ps->QueryInterface(IID_IUnknown,(void **)m_pScriptParse);//这里查询不到接口了，返回E_POINTER
             ....
         }

E_POINTER       0x80004003  无效的指针
       是不是CoCreateInstance创建对象后返回的接口指针有错误？？？？