Magnet, as you probably know, Spyware Doctor is a product of pctools.
Here is a link to a recent review of spyware doctor.
Often you will find reviews where the purpose of the review is to make a sale. It tells you how great something is and then uses an affiliat link.
This is not one of those. It is an impartial review and has no affiliate links. It does let you know where you can get it if you are interested and that link is directly to pctools.
Spyware Doctor 5.5 review - PC Advisor