Hi - Touching base back on our testing results in reproducing the "svchost/msi issue" system hang, lock and/or unresponsive behaivor reports.  After installing the new 3.0 client, and the MSI fix (KB927891) referenced in yesterdays' post, we tested scan times, system responsiveness and CPU utilization on a variety of systems running multiple applications simultaneously.

Baselines were run on Single Processor 733 Mhz systems with 256Mb Ram, with XPSP2 and Windows Server 2003 SP1 operating systems and Office 2003 installed.  Multiple instances of IE, Office apps, and AV utils were run during scans.  In these cases there was the expected CPU usage spike in the task manager, however all the systems remained responsive.  

I have not yet had anyone report and send information to me on locked or unresponsive systems after installing and verifying the new 3.0 client and the MSI fix are on the systems. Still open to recieving the WindowsUpdate.log and system HW/SW configuration if you are continuing to experience these issues.  However,  we are seeing many more posts in blogs, forums and newsgroups where users are reporting these installs alleviate these issues, while the CPU consumption does temporarly spike as expected. 

We will continue to monitor this issue.

thanks -

Bobbie Harder