I figured out how to install this program silently, with the serial number written.
Note: My Nero 6.6 is the one that is 80.3mb in size, which I got from BitTorrent.
Ok, so here is how to do it.
1) Extract the files of the single file installer. (I used WinRAR.)
2) You will see several folders, and a setup.exe. But that is not the one that we need.
3) Go to the Nero 6 folder, and you will see another setup.exe there. That is the one that we need to do a silent install.
4) Use the old switch. That's it.
QUOTE
setup.exe /SILENT /NOREBOOT /SN=XXXX-XXXX-XXXX-XXXX-XXXX-XXXX /WRITE_SN