To customize quick launch I take the registry settings of a customized one, then apply it on the unattended set for the same screen resolution. I'm using this registry tweaks:

1. For the taskbar size and positition:
[HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\StuckRects2]

2. For the settings of the taskbar:
[HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Streams\desktop]

This includes quick launch. But with this I couldn't change the view->large icons option. And I don't know why? Is there any other tweak?