The following is the RunOnceEx.cmd file (Note in the serial part of nero I have have put XXX in place of the serial.) @Echo Off SET PP= SET KEY=HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnceEx REG ADD %KEY% /V TITLE /D "Program Installation" /f REG ADD %KEY%\000 /VE /D "Acrobat Reader 7.0" /f REG ADD %KEY%\000 /V 1 /D "%PP%%cdrom%\apps\AdbeRdr70_enu_full.exe -p"-s /v\"/qn\""" /f REG ADD %KEY%\001 /VE /D "DVD Region Free 5.5" /f REG ADD %KEY%\001 /V 1 /D "%PP%%cdrom%\apps\DVDRegionFree55.exe /VERYSILENT /SP-" /f REG ADD %KEY%\002 /VE /D "Google Toolbar (without advanced features)" /f REG ADD %KEY%\002 /V 1 /D "%PP%%cdrom%\apps\GoogleToolbarInstaller.exe /q /d" /f REG ADD %KEY%\003 /VE /D "Nero Burning ROM 6.6.0.6" /f REG ADD %KEY%\003 /V 1 /D "%PP%%cdrom%\apps\nero6606.exe /SILENT /NOREBOOT /SN=XXXX-XXXX-XXXX-XXXX-XXXX-XXXX /WRITE_SN" /f REG ADD %KEY%\004 /VE /D "SpyBot Search & Destroy" /f REG ADD %KEY%\004 /V 1 /D "%PP%%cdrom%\apps\spybotsd13.exe /verysilent" /f REG ADD %KEY%\005 /VE /D "TuneUp Utilities" /f REG ADD %KEY%\005 /V 1 /D "%PP%%cdrom%\apps\TU2004TrialEN.exe /q" /f REG ADD %KEY%\006 /VE /D "WinRAR 3.42" /f REG ADD %KEY%\006 /V 1 /D "%PP%%cdrom%\apps\wrar342.exe /s" /f REG ADD %KEY%\007 /VE /D "32bitFAX" /f REG ADD %KEY%\007 /V 1 /D "%PP%%cdrom%\apps\32bisx.exe" /f REG ADD %KEY%\008 /VE /D "PowerDVD5" /f REG ADD %KEY%\008 /V 1 /D "%PP%%cdrom%\apps\PDVD5.exe" /f REG ADD %KEY%\009 /VE /D "Yahoo Messenger 6" /f REG ADD %KEY%\009 /V 1 /D "%PP%%cdrom%\apps\ymsgr_1643.exe /s" /f REG ADD %KEY%\009 /V 2 /D "taskkill /f /t /im ypager.exe" /f REG ADD %KEY%\010 /VE /D "WinZip 9" /f REG ADD %KEY%\010 /V 1 /D "%PP%%cdrom%\apps\winzip90" /f REG ADD %KEY%\011 /VE /D "Flash player" /f REG ADD %KEY%\011 /V 1 /D "%PP%%cdrom%\apps\flash\flash.exe /silent" /f REG ADD %KEY%\012 /VE /D "Advanced Gif Animator" /f REG ADD %KEY%\012 /V 1 /D "%PP%%cdrom%\apps\gifanimator.exe /silent" /f REG ADD %KEY%\013 /VE /D "Spyware Doctor" /f REG ADD %KEY%\013 /V 1 /D "%PP%%cdrom%\apps\sdinstall.exe /silent" /f REG ADD %KEY%\014 /VE /D "Sify Broadband" /f REG ADD %KEY%\014 /V 1 /D "%PP%%cdrom%\apps\sify.exe /silent" /f REG ADD %KEY%\015 /VE /D "Video Inspector" /f REG ADD %KEY%\015 /V 1 /D "%PP%%cdrom%\apps\videoinspector.exe /silent" /f REG ADD %KEY%\016 /VE /D "Zone Alarm security suite" /f REG ADD %KEY%\016 /V 1 /D "%PP%%cdrom%\apps\zone\zone.exe" /f REG ADD %KEY%\020 /VE /D "FreeRAM" /f REG ADD %KEY%\020 /V 1 /D "%PP%%cdrom%\apps\freeram.exe" /f REG ADD %KEY%\021 /VE /D "FlashGet 1.4" /f REG ADD %KEY%\021 /V 1 /D "%PP%%cdrom%\apps\flashget.exe" /f EXIT Will this file work??? Or do I have to change the %cdrom% to %systemdrive% Also , Are all the files on the cd copied onto the harddisk??? (For example suppose if the installation files of the above programs are placed under apps folder in the cdrom ie the location is %cdrom%\apps\ so When these files are copied will the location of the installation files be %systemdrive%\apps ???) Suppose if i want to add the cmdow.exe what line should i add at the starting and also where should cmdow.exe file be placed??