I already replied to another topic covering Nero 6, but I know that anyone following this thread my also be interested in the same answer. Sorry about the double reply though. For anyone who cares I have been using a method that I haven't seen mentioned. Is what I did was create a registry entry and add it to my $OEM$ folder and then I altered my cmdlines.txt to run the registry entry. This allowed the registry entry to take place before the installation process. Then I used the following switches in my start.cmd to install silently. It worked perfect. Hope this helps some people. Example of cmdlines.txt [COMMANDS] "useraccounts.cmd" "REGEDIT /S regtweaks.reg" "REGEDIT /S Nero6RegEntry.reg" "REGEDIT /S Norton2004Key.reg" Example of my Nero6RegEntry.reg Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Ahead\Nero - Burning Rom\Info] "Company"="" "Serial6"="XXXX-XXXX-XXXX-XXXX-XXXX-XXXX" "User"="Your Name" Example of my start.cmd ECHO. ECHO Installing Nero Burning ROM v6.6.0.1 ECHO Please wait... start /wait %systemdrive%\install\Applications\Nero6\nero6.6.0.1.exe /silent /noreboot ECHO.