The VideoLAN Forums

But I assume this will install Web plugins and add Context Menus, right?
I seem your solution install VLC with defaults properties and THEN you change Preferences afterwards.

Are there other switches? Would like to set all the switches available in the GUI installer?

Does anyone know if vlc use a 3rd part install like e.g. Inno?

Yea, it is surprisingly hard to find those arguments, very strange no one at VLC found this valuable to share.
The howto installation page is pretty useless:
https://wiki.videolan.org/Documentation:Installing_VLC/

It would be great if you could set the volume level in the playlist. Your playlist might consist of external URL streams and then you cannot change the volume gain in the file. Only option is to set it in the playlist, e.g. in the xspf format. I assume it must be possible to use an <option> element ...