3.2.5.40.3 Receiving an NT_TRANSACT_NOTIFY_CHANGE Response

If the response to an NT_TRANSACT_NOTIFY_CHANGE request is either a status of STATUS_NOTIFY_ENUM_DIR (ERRDOS/ERR_NOTIFY_ENUM_DIR) or success with no changed files listed, the server indicates that it is unable to report changes that MAY have occurred within the directory. If the client requires knowledge of the state of the directory, it MUST enumerate the directory entries to re-establish that knowledge.

Any other error response MUST be passed to the application that initiated the call. If the subcommand is successful, the list of changed directory entries MUST be returned to the application.