Search Folder Performance problem detectionhttp://blogs.technet.com/mikelag/archive/2008/08/22/search-folder-performance-problem-detection.aspxOne of the problems we see in support from time to time is High CPU or server not responding scenarios causing 623 events on Exchange servers. This has been talked about in great detail in the following links: Troubleshooting Version Store issues - JET_errVersionStoreOutOfMemoryen-USCommunityServer 2.1 SP1 (Build: 61025.2)Exchange search folders and performance ramificationshttp://blogs.technet.com/mikelag/archive/2008/08/22/search-folder-performance-problem-detection.aspx#3111469Mon, 25 Aug 2008 16:01:24 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3111469Dgoldman's WebLog<p>A while back I wrote a few blogs so I could get some detailed information out on how search folders work</p>