[Newbies] Disabling halos and the world menu

[Jens Pall]

Hi

How can I prevent the halos from appearing when clicking the middle 
mouse button?

I tried Preferences>>disableProgrammerFacilities but the halos still 
appear. The World menu (left mouse button) also still appears. Shouldn't 
this command also disable it?

I'm interested in locking the image down as much as possible in order to 
be able to ship it running a product sold by my company.

I'm using VM 3.7.1 on Windows and image 3.9-final-7067.

Thanks,
JP