Since they have a free online scanner, why not just use that?
Seeing that it is also a shareware product, and cost $30, why not opt for a freeware alternative, since there are many choices, check the pinned topic here for a listing of spyware and adware blocking titles, many are free;
http://www.oldversion.com/talk/index.php?a...t=ST&f=2&t=1405
On their site, i dont see an option to download a trial version, just a link to purchase this title, is it shareware, or just a retail/commerical release which you must pay for before using?