what you are seeing is an automatic scan  and whilst it might be annoying when
you are working on your own programmes, which I hope are ok. I still would not
recommend turning the feature off.
to see what else is automatically scanned go to

Norton internet security---- personal firewall-------- configure----------
programmes.

to the turn off any programmes that Norton seeks to protect I feel would be
irresponsible ( I assume that you have never been infected with a virus) leave
well alone