|Hi Stuart - I agree with you in that it is worth trying AVG etc, as they are free.|
However my (and others) experience is free ones are never as good as those purchased.
Providing full ongoing support, requires considerable manpower which costs, and has to be paid for.
Yesterday I received (via Ebay UK ) a new sealed version of Norton Internet Security 2006, at a total cost of £4.70, which provides 12 months of cover.
This version is the last one compatible with my os (W2000) and also supports Windows XP, which Javeed has.
Regards - Mike
Good Luck - Keep us posted.