From:
http://www.microsoft.com/athome/security/spyware/software/releasenotes.mspx
Improvements in the current build
Provision of information about processes running on a PC
This refresh solves an issue with the way Windows AntiSpyware (Beta)
displays information about processes running on the PC. Specifically, the
solution fixes the display of Running Processes on the System Explorers
feature (on the Tools menu, click Advanced Tools, then click System
Explorers).
Signature delivery
An issue has been solved that prevented some customers from receiving
complete anti-spyware signatures in recent weeks.
New anti-spyware signatures
New signatures available with this refresh address the most recent threats
that we've identified, based on feedback from members of the SpyNet
community and the work of our anti-spyware research analysts.
Ron Chamberlin
MS-MVP