PFNDAVAUTHCALLBACK

DWORD PFNDAVAUTHCALLBACK(
    LPWSTR lpwzServerName,
    LPWSTR lpwzRemoteName,
    DWORD dwAuthScheme,
    DWORD dwFlags,
    DAV_CALLBACK_CRED* pCallbackCred,
    AUTHNEXTSTEP* NextStep,
    PFNDAVAUTHCALLBACK_FREECRED* pFreeCred
);