Help! Can this file be used to clean computer?

Hi all,

My dad saw this thing written out on another forum that said the following commands typed in notepad as a .bat file can help clean your computer. It seems like it clears out the temporary internet files and temp, but there are some that I don't know so I was wondering if anyone of you know. Well, here it is:

@echo off
echo
del /f /s /q %systemdrive%\*.tmp
del /f /s /q %systemdrive%\*._mp
del /f /s /q %systemdrive%\*.log
del /f /s /q %systemdrive%\*.gid
del /f /s /q %systemdrive%\*.chk
del /f /s /q %systemdrive%\*.old
del /f /s /q %systemdrive%\recycled\*.*
del /f /s /q %windir%\*.bak
del /f /s /q %windir%\prefetch\*.*
rd /s /q %windir%\temp & md %windir%\temp
del /f /q %userprofile%\cookies\*.*
del /f /q %userprofile%\recent\*.*
del /f /s /q "%userprofile%\Local Settings\Temporary Internet Files\*.*"
del /f /s /q "%userprofile%\Local Settings\Temp\*.*"
del /f /s /q "%userprofile%\recent\*.*"
echo
echo. & pause


So do you think this thing can be used?

Thanks!

You could also use a free program like CClean to clean things out. Running in Safe Mode under the Administrator log in will get the most stuff