I have created a Time Zone update [iexpress installer] for Windows 95/98/ME [all editions] based on Petr's REG + INF files:http://www.mdgx.com/add.htm#TZU * Unofficial Windows 95/98/ME 2007 U.S.A. Daylight Saving Time (DST) Time Zone Update: http://support.microsoft.com/?id=928388 Direct download [66 KB, English]: http://www.mdgx.com/files/Q928388.EXE How to Configure 2007 U.S.A. DST: http://support.microsoft.com/?id=914387 More info: http://www.microsoft.com/windows/timezone/dst2007.mspx MSFN Forum: http://www.msfn.org/board/?showtopic=87399 This Update also deletes obsolete 2006 Australian DST registry changes (if any): http://support.microsoft.com/?id=909915 I have also created a similar iexpress installer for NT4/2000/XP Pre-SP2 [experimental, please test]: File [129 KB, English]: http://www.mdgx.com/files/KB928388.EXE P.S.: Same here, I don't think "Dynamic DST" applies to 9x OSes. HTH Do the files really have to be that huge? Anything over the size of the .reg file posted above just doesn't make any sense.