:: a barra é preenchida antes da compressão dos arquivos;

@echo off
color 1E
title Processo de Backup
mode con: cols=58 lines=11

setlocal EnableDelayedExpansion
set Counter=0

if not exist d:\backup_files md d:\backup_files >nul
if not exist d:\backup_files\temp md d:\backup_files\temp >nul

if exist d:\backup_files\backup3.rar del d:\backup_files\backup3.rar 
if exist d:\backup_files\backup2.rar ren d:\backup_files\backup2.rar backup3.rar 
if exist d:\backup_files\backup1.rar ren d:\backup_files\backup1.rar backup2.rar 
if exist d:\backup_files\ultimo.rar ren d:\backup_files\ultimo.rar backup1.rar

dir /c /a /s d:\backup_files >d:\backup_files\temp\leia-me.txt

:1
set /a Counter=%Counter% + 1
set /a Display=%Counter% / 2
FOR /L %%A IN (1,1,%Display%) DO set Display=!Display!Û
cls
echo.
echo   Copiando Arquivos e Pastas, Aguarde...     %Counter% %%
echo. 
echo   Û!Display:~2,47!
ping localhost -n 1 >nul
if "%Counter%" == "100" endlocal & goto End
goto 1
:End
c:\arquiv~1\winrar\rar.exe a -r -inul d:\backup_files\ultimo d:\caminho\*.*
echo.
echo   BACKUP COMPLETADO COM SUCESSO...
echo.
echo   Pressione qualquer tecla para sair...
pause >nul