以下 Flow Control 關鍵字可用在指令碼中,以便傳回該指令碼內各步驟的「錯誤」或「成功」回應。
IfState {ERR|OK} labelIfState ERR EndIfState OK ByeGoto EndGoto EndExit {ERR|OK}Exit ERRExit OK:(後接名稱)ByeOnError {EXIT|CONTINUE|GOTO} labelOnError EXIT(預設行為)OnError CONTINUEOnError GOTO Logoff