Here is Microsoft's official and new spy ware removal program. It's still in beta though. But I've used it and it's great. It does thorough searching and gives you detailed information during and after the scanning process. It was released today by the way.
"Windows Anti-Spyware (beta) is a security technology that helps protect Windows users from spyware and other potentially unwanted software. Known spyware on your PC can be detected and removed. This helps reduce negative effects caused by spyware, including slow PC performance, annoying pop-up ads, unwanted changes to Internet settings, and unauthorized use of your private information. Continuous protection improves Internet browsing safety by blocking more than 50 ways spyware can enter your PC.
The worldwide SpyNet community plays a key role in determining which suspicious programs are classified as spyware. Microsoft researchers quickly develop methods to counteract these threats, which are automatically downloaded to your PC, so you stay up-to-date."
Download here:
http://www.download.com/Microsoft-Anti-Spyware-Beta/3000-8022_4-10353596.html?tag=sptlt_s
