I first thank MSFN board and all members for the work. I'm not speak english. so i thank for your patience.
I just download the Nero 8.3.1 autoit script and i have some problem to use it. I would need your help because i want to change the default directory like this: %PROGRAMFILES\MULTIMEDIA\NERO8. how can i do it ? Is it correct to set the the $ID parameter as
$ID = "@ProgramFilesDir & "Multimedia\Nero8"" ? Thank for your help.

better use

Macros (@...) dont come with trailing backslash! And strings are enclosed in one set of quotes only.

Thank you very much for your help. Any thing went ok.
Know i have another request to make for implementation the script. since that it possible to make nero totaly silent install if the 7z is install in the PC, i think it will be usefull to ad some lines in the options to chek if the 7z is already install in the PC. so that if there is no 7z in the PC the script install 7z (for those select silent option) by first and load nero in the second time. This means that the 7z will be in the same directory like nero setup.
My english is very poor so i ask your patience. Thank for all.