Thanks jafoman for posting this in Back Page News.
The latest beta refresh, build 1.0.615, addresses issues pertaining to how Windows AntiSpyware (Beta) provides information to the user about processes running on a PC, solves an issue regarding the delivery of new anti-spyware signatures for some customers and provides new signature updates to help protect against recently identified spyware.
Windows AntiSpyware (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 guarding over fifty (50) ways spyware can enter your PC.