That was quick! Thank you very much for your responses. I will follow them to the Tee when I have more time! Hope they're not too complicated!
In response to your question, I have absolutely no idea when it installed or where it came from. The computer it is installed upon, is in constant use 24/7 by a number of people.
Perhaps I should beef up the security a bit. It is such a bloody nuisance!
Thanks once again.
CL.