@ECHO OFF
:START
C:
CD\PCB\DOORBILL
IF EXIST DBRUN1.BAT DEL DBRUN1.BAT
IF EXIST ENDBILL.1 DEL ENDBILL.1
DOORBILL DOORBILL.CFG
IF EXIST ENDBILL.1 GOTO EXIT
IF NOT EXIST DBRUN1.BAT GOTO EXIT
CALL DBRUN1
GOTO START
:EXIT
C:
CD\PCB
BOARD