UAC will be displayed only if the shortcut on your desktop is shared by several users. eg: an application you installed which places the shortcut for all users.

If you create yourself the shortcut, UAC is not displayed.


If the application force you to install for all users, the blame lies with the application, not the OS.

I read they got the net on the space station ISS in orbit around earth ... Some Slashdot reader from space could even have a greater answer value.