3.18. Microsoft
Daylight Saving Time Help and Support Center
Comprehensive document regarding the DST issue with pointers to other knowledge base articles and patches
List of Microsoft products affected by daylight saving time and time zone changes
Comprehensive index of Microsoft products and links to latest updates for Microsoft Windows and other products, including the current version of the Microsoft Office Time Zone Data Update Tool
Daylight Saving Time 2007 Update
Updates for handheld devices (PDAs) running Windows Mobile. See also Clause 3.27 if your handheld is made by Palm.