One click support problem with Systemworks Premier Edition

Periodically, I get a pop-up from 'One click support' telling me that I have a free update to my product (which is Norton Systemworks Premier Edition 2009) available.  When I follow the links I end up downloading and installing Norton 360 but then I am told that this is a 30 day free trial.  I reverted to a backup but can't seem to find a way to suppress this annoying message.

 

Anybody got an idea?