Isnt it possible to...
1) Log the first visit of a unique IP to a page where User Agent is IE6,
2) If the same IP visits within 5 minutes, with a newer User Agent, and a HTTP_Referer that shows a search string, then...
3) ...send them to a page instructing them politely to disable LinkScanner or if you are feeling unhelpful, serve them AVG's homepage instead
Biting the hand that feeds IT
