http://blogs.technet.com/trm/archive/2006/11/11/november-2006-technical-rollup-mail-platforms.aspxNews Preparing for Daylight Saving Time changes in 2007 Microsoft will be producing an update for Microsoft products affected by the new United States Daylight Saving Time transition dates. These updates will be released through a combination of channelsen-USCommunityServer 2.1 SP1 (Build: 61025.2)