BAT-файл №2.
Код:

@ECHO OFF
FOR /F "tokens=1 delims=:" %%I IN ('FINDSTR /N /L [BootBusExtenders.Load]^<TXTSETUP1.SIF') DO (
SET /A VAR1=%%I
)
FOR /F "tokens=*" %%I IN ('FIND /N /V ""^<TXTSETUP1.SIF') DO (
FOR /F "tokens=1* delims=[]" %%J IN ("%%I") DO (
IF %%J LSS %VAR1% (
IF NOT %%I==[%%J]%%K (
SET /P VAR2="[%%K" 0>nul 1>>TXTSETUP2.SIF
ECHO.>>TXTSETUP2.SIF
) ELSE (
SET /P VAR2="%%K" 0>nul 1>>TXTSETUP2.SIF
ECHO.>>TXTSETUP2.SIF
)) ELSE (
IF NOT %%I==[%%J]%%K (
SET /P VAR2="[%%K" 0>nul 1>>temp.txt
ECHO.>>temp.txt
) ELSE (
SET /P VAR2="%%K" 0>nul 1>>temp.txt
ECHO.>>temp.txt
))))
MOVE temp.txt TXTSETUP1.SIF
ECHO All's ready! Press any key to exit.
PAUSE>nul