Regards Lana, Netbios is still heavily in use in virtually every Airport in the world.
Although everything is very slowly moving to IP, a lot of Airline checkin - boarding applications (including major operators) hosted on common use platforms still require it for communicating with attached devices, printers, scanners etc.
Google Lanacfg, its is a quicker method to see and change Lana, works up to and including windows 7.
Any later windows and you are stuck with the method in your initial post.