[Georgio]

Код:

@echo off
(
for /f "tokens=1* delims=:" %%i in ('
  findstr /n "^" "%APPDATA%\Programma\config.properties"
 ') do (
  if not "%%j"=="" (
   echo.%%j| findstr /iv "DirDirectory="|| (
   echo DirDirectory=%APPDATA%\Programma\
   )
) else (
   echo.
  )
 )
)>"%APPDATA%\Programma\config_new.properties"
move "%APPDATA%\Programma\config.properties" "%APPDATA%\Programma\config.properties.bak">nul
move "%APPDATA%\Programma\config_new.properties" "%APPDATA%\Programma\config.properties">nul
exit /b