@echo off

cd /d "%APPDATA%\Processing"
set infile=preferences.old
set outfile=preferences.txt

taskkill /F /IM javaw.exe /T
echo Check the existence of the preferences.txt
if exist %outfile% (
  echo The prefereces.txt exists.
) else (
  echo The prefereces.txt does not exists.
  echo Make the file.
  call "C:\App\processing\processing.exe"
  taskkill /F /IM javaw.exe /T
)

move %outfile% %infile%
type %infile%  | ^
find /v "proxy.host=" | ^
find /v "proxy.port=" | ^
find /v "proxy.http.host=" | ^
find /v "proxy.http.port=" | ^
find /v "proxy.https.host=" | ^
find /v "proxy.https.port=" > %outfile%
echo proxy.host=192.168.177.160>> %outfile%
echo proxy.http.host=192.168.177.160>> %outfile%
echo proxy.http.port=3128>> %outfile%
echo proxy.https.host=192.168.177.160>> %outfile%
echo proxy.https.port=3128>> %outfile%
echo proxy.port=3128>> %outfile%