how to use IWebBrowser2::NavigateError?

[szcococut]

my code: BEGIN_EVENTSINK_MAP(CBrowserPage, CDialog) //{{AFX_EVENTSINK_MAP(CBrowserPage) ON_EVENT(CBrowserPage, IDC_EXPLORER1, 271 , NavigateError, VTS_DISPATCH VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PBOOL) ON_EVENT(CBrowserPage, IDC_EXPLORER1, 252 /* NavigateComplete2 */, OnNavigateComplete2Explorer1, VTS_DISPATCH VTS_PVARIANT) //}}AFX_EVENTSINK_MAP END_EVENTSINK_MAP() OnNavigateComplete2Explorer1 can work, NavigateError can't work,why? my ie is 6.0 thanks!

[szcococut]

had got it , ON_EVENT(CBrowserPage, IDC_EXPLORER1, 271 , NavigateErrorExplorer1,VTS_DISPATCH VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PBOOL) can work thanks