anchor.diff:  
   REM ############### Help ##################
   :showhelp
  -MODE 80,50
  +MODE 80,53
   CLS
   CALL :message "Available arguments (case-insensitive):"
   CALL :message "  -esr"
  
positive.code: 
  REM ############ ESR Function ############
  :esr
  SETLOCAL DisableDelayedExpansion
  (
  	FOR /F "tokens=1,* delims=:" %%G IN ('FINDSTR /N "^" "%~1"') DO (
  		SET "_temp=%%H"
  		SETLOCAL EnableDelayedExpansion
  		IF NOT "!_temp:~-37!"==".x still uses all the following prefs" (
  			ENDLOCAL & ECHO:%%H
  		) ELSE (
  			ECHO://!_temp:~2!
  			ENDLOCAL
  		)
  	)
  )>updatertempfile
  MOVE /Y updatertempfile "%~1" >nul
  ENDLOCAL
  
negative.code: IF /I "%~1"=="-updatebatch" (SET _updateb=1)
  IF /I "%~1"=="-singlebackup" (SET _singlebackup=1)
  IF /I "%~1"=="-esr" (SET _esr=1)
  IF /I "%~1"=="-rfpalts" (SET _rfpalts=1)
  SHIFT
  GOTO parse
  :endparse
  