The understanding Microsoft's operating shit demonstrates of the term multi-user system goes like this:

a multiple choice of users from outside must be allowed to run programs on your personal computer in administration mode.

From any point of the world, as experts say: remotely.

Of course all this shall happen silently. The functionality created shows to be unable sending notifications to the computer's owner. Unwanted anyway, since sending to the "software" company's servers consumes too much traffic, so that more messages in between threads would statically cause the blue screen.

However will 'new' versions of the sys-play abuse, one each year, hardly do result any different than it's users just annoyed of commands from the box and not vice versa.