Q: I need a fundamental reason "Why should I patch my Sharepoint boxes" when all I am running is WSS 2.0 (with some fairly weird/unsupported hotfixes) and I have no sites that are running Exchange Public Folder linkages.
A: Microsoft has released an update for Windows SharePoint Services. This update includes revised time zone definitions for Daylight Saving Time (DST) start/end dates. This update also includes other fixes. The Windows DST patch (http://support.microsoft.com/kb/928388) needs to be installed on the server first.
Description of the update for Windows SharePoint Services: January 9, 2007