I found this today and thought I would share my experience with it.
I would rate this below Spybot and Ad-Aware, but the one thing it did do was remove unnecessary startup programs. It did a thorough registry search,and found 1 more object then Ad-Aware.But it did not tell me what this object was. So overall:
Great for system start-up control, good compliment to Ad-Aware & Spybot, but lacks the output I need to know whats going on.
Test system was WinME with Internet Explorer 6
http://spyflush.com/