stdcall InterfaceConnect, IID_DWebBrowserEvents2, WebEvnt, lpdwCookie  

proc InterfaceConnect,  IID, Sink, Connection
        mov     [Connection], 0
        cominvk ppw, QueryInterface, IID_IConnectionPointContainer, cpc
        test    eax, eax
        js      @F
        mov     ebx, [cpc]
        comcall ebx, IConnectionPointContainer, FindConnectionPoint, [IID], cp
        test    eax, eax
        js      @F
        mov     ebx, [cp]
        comcall ebx, IConnectionPoint, Advise, [Sink], [Connection]; This is error
        test    eax, eax
        js      @F
        ret
     @@:stdcall OleException, eax
        ret
endp