https://gitlab.synchro.net/main/sbbs/-/merge_requests/56#note_1158
they are used
`@ECHO OFF
SET DSZLOG=D:\PROTOCOL.LOG
SET SBBSNODE=D:
SET SBBSNNUM=1
SET SBBSCTRL=F:
SET SBBSDATA=G:
SET SBBSEXEC=H:
SET PCBNODE=1
SET PCBDRIVE=D:
SET PCBDIR=\
SET XTRNDIR=\sbbs\xtrn
SET CTRLDIR=\sbbs\ctrl
SET DATADIR=\sbbs\data
SET EXECDIR=\sbbs\exec
SET NODEDIR=\sbbs\node1
SET STARTDIR=bre
@unix -s NODEDIR
@lredir D: linux\fs%NODEDIR% >NUL
@lredir E: linux\fs%XTRNDIR% >NUL
@lredir F: linux\fs%CTRLDIR% >NUL
@lredir G: linux\fs%DATADIR% >NUL
@lredir H: linux\fs%EXECDIR% >NUL
E:
IF NOT "" == "%STARTDIR%" CD %STARTDIR%
REM Optionally call emusetup.bat or put that stuff here for global (in NOEMU) REM Looks in startup dir, then ctrl dir
IF EXIST EMUSETUP.BAT GOTO EMULOCAL
IF EXIST F:\EMUSETUP.BAT GOTO EMUGLOBAL
IF EXIST E:\DOSUTILS\NUL GOTO NOEMU
ECHO ERROR: No emusetup.bat in E:\%STARTDIR% or F, or E:\DOSUTILS\ is missing GOTO EXEC
:EMULOCAL
CALL EMUSETUP.BAT
GOTO EXEC
:EMUGLOBAL
CALL F:\EMUSETUP.BAT
GOTO EXEC
:NOEMU
@set PATH=%PATH%;E:\dosutils
unix -s RUNTYPE
REM fossil driver, such as x00, bnu, or dosemu fossil.com
rem IF "%RUNTYPE%" == "FOSSIL" @fossil.com >NUL
rem IF "%RUNTYPE%" == "FOSSIL" bnu.com /P1 /L0=11520 >NUL
IF "%RUNTYPE%" == "FOSSIL" x00.exe eliminate >NUL
REM share.exe for multinode file locking
@share >NUL
GOTO EXEC
:EXEC
bre score
IF NOT "%1" == "TEST" exitemu
REM For debugging: /usr/bin/env TERM=linux RUNTYPE=STDIO HOME=/sbbs/ctrl/ QUIET=1 DOSDRIVE_D=/sbbs/node1/ NODEDIR=/sbbs/node1/ /usr/bin/dosemu.bin -I"video { none }" -I'keystroke "\n"' -f/etc/dosemu/dosemu.conf -ED:external.bat -o/sbbs/node1/dosemu_boot.log >> /sbbs/data/dosevent_bre.log`
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