Hi,
I'm trying to create universal batch files for my games that will work in both windows and dos (inside dosbox). To run games from windows via batch files without adding DOSBox folder into each game I've decided to copy external batch file (AUTOEXEC.BAT) which is called after running dosbox. Sample batch file looks like this:

1@echo off
2cd ..\DOSBox
3copy ..\GAMES\DUKE3D\!EXTRAS\AUTOEXEC.BAT /y
4cls
5dosbox -nogui -noconsole -conf dosbox.play.conf
6exit

It works as intended in windows.

I'd like to use the same file also for dos. Here is my attempt in writing a proper batch file:

1@echo off
2tasklist /FI "IMAGENAME eq dosbox.exe" 2>NUL | find /I /N "dosbox.exe">NUL
3if "%ERRORLEVEL%"=="0" GOTO:DOS
4if "%ERRORLEVEL%"=="1" GOTO:WIN
5
6:WIN
7cd ..\DOSBox
8copy ..\GAMES\DSJ210\!EXTRAS\AUTOEXEC.BAT /y
9cls
10dosbox -nogui -noconsole -conf dosbox.play.conf
11exit
12GOTO:EOF
13
14:DOS
15cd GAMES\DSJ210
16cls
17set DOS4G=quiet
18DSJ.EXE
19exit
20GOTO:EOF

I will be grateful if someone could help me bugfixing it, because this one don't work neither in windows nor inside dosbox. Or maybe there is a simpler way to achieve it? The concept is simple: check if dosbox is running, if no - execute the normal commands like in the first batch; if yes - run the game.

Thanks in advance.