As usual by trying to do the correct thing I've now got a problem which wasn't there before.
On checking microsoft critical updates fro windows 2000 I found that service pack 4 was advised. I down loaded and installed with no problem - however ever since doing so I am bombarded with pop up messages which read as thus..
Message from ALERT SERVICE to YOU on date and time ARE YOU TIRED OF ALL THESE MESSENGER POPUPS? You can STOP these type of POPUPS and advertisments by going to click here now!
this goes on to tell you that you can download software to stop these ads.
These popup ads appear evry half an hour or so and the website can change from click here to click here
Any ideas why this annoying add on has been attached to microsofts service pack and how do I safely get rid of them?