And also most recommended by companies that specialise in on-site support...
There is a reason.... Trend's policy about viruses differ somewhat....
Where other companies, believe that only if it passes the defenition of a virus can they include it in their removal guides....
Trend says.... if it climbs onto your computer by an unauthorised means, and it is potentially harmful or irritating, it is a virus and will be removed.
In trend's latest products, they even include basic anti-spyware.