I would not trust this. It sounds too similar to Microsoft's scheme to
block unwanted advertising. During beta testing it was discovered that this
"feature" let through Microsoft and related partners' advertising, but
blocked competitors' advertising. Microsoft dropped this after it threatened to become an issue in their trail, as to whether they were filtering the Internet to give users a Microsoft-only view.
-- Harvey Newstrom <mailto://email@example.com> <http://newstaffinc.com> Author, Consultant, Engineer, Legal Hacker, Researcher, Scientist.