You want to remove the REM statements in your batch file (REM's to remove are in Bold below)
@ECHO OFF
cls
:KillIE&JavaProcesses
echo *** This will kill Browsers and Java Processes ***
Rem ***
taskkill /F /IM iexplorer.exe
taskkill /F /IM iexplore.exe
taskkill /F /IM firefox.exe
taskkill /F /IM chrome.exe
taskkill /F /IM jusched.exe
taskkill /F /IM jp2launcher.exe
taskkill /F /IM java.exe
taskkill /F /IM javaw.exe
taskkill /F /IM jqs.exe
rem cd x64
rem msiexec.exe /i jre1.7.0_51.msi /qn AUTOUPDATECHECK=0 JAVAUPDATE=0 JU=0 EULA=1 /NORESTART /log c:\java_7_51_x64_install.log
rem cmd.exe /C rmdir "%PROGRAMDATA%\Microsoft\Windows\Start Menu\Programs\Java" /S/q
rem cd..
cd x86
msiexec.exe /i jre1.7.0_51.msi /qn AUTOUPDATECHECK=0 JAVAUPDATE=0 JU=0 EULA=1 /NORESTART /log c:\java_7_51_x86_install.log
cmd.exe /C rmdir "%PROGRAMDATA%\Microsoft\Windows\Start Menu\Programs\Java" /S/q
Zaldoor =)