Well at least the post on the previous page is topical.
I couldn’t find any independent reviews for the shilled product online. A year ago, it was listed in PC World’s download section. It’s trialware: the full version costs $50. http://www.pcworld.com/downloads/file/fid,199756-order,4-page,1/description.html
For casual use, I would recommend FileMenu Tools. It has a lot of useful utilities, including shred. For serious use, I would try a product that has been tested and reviewed. http://www.lopesoft.com/en/fmtools/download.html
2007 version (with review, dated): http://www.pcworld.com/downloads/file/fid,67197-order,4/description.html