This is a very novice question so apologies in advance. Apple software update has been advising me to apply an update for this for some time, but I am not sure what this is. I don't think I ever used Apple Remote Desktop to need applying an update, and I am concerned that by updating this, it will activate a functionality which I never consciously used.
Rather than to heed the "don't argue, just update everything Apple tells you to" approach, I thought to ask for an advice before proceeding. I am afraid I am a novice user of OS/X and therefore my usage is fairly primitive. I do not access my Mac remotely nor wish for anyone else to start accessing it remotely.
The Client component is installed in all OS X istallations (Similar to screen sharing) - if you don't have ARD anywhere you can ignore, athough if you ever use screen sharing I would be tempted to install anyway.