A legitimate commercial product may be listed by Microsoft Antispyware.
This doesn't necessarily indicate anything to the discredit of the product,
simply that there is potential for abuse. See this KB article for the
criteria under which a product can be listed:
http://support.microsoft.com/kb/892340 Microsoft Windows AntiSpyware (Beta)
identifies a program as a spyware threat (Listing criteria and Dispute
process)
(I've not looked up this product at all--I'm not expressing an opinion--just
mentioning that fact that other products, including some Microsoft code are
listed by Microsoft Antispyware with appropriate descriptions and default
actions--even though they are legitimate commercial products.)