What the EST Windows Registry Keys Should Show:
-----------------------------------------------

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Eastern Standard Time]
"Display"="(GMT-05:00) Eastern Time (US & Canada)"
"Dlt"="Eastern Daylight Time"
"Std"="Eastern Standard Time"
"MapID"="38,39"
"Index"=dword:00000023
"TZI"=hex:2c,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0b,00,00,00,01,00,02,00,00,\
  00,00,00,00,00,00,00,03,00,00,00,02,00,02,00,00,00,00,00,00,00


[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Eastern Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d6
"LastEntry"=dword:000007d7
"2006"=hex:2c,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,05,00,02,00,\
  00,00,00,00,00,00,00,00,04,00,00,00,01,00,02,00,00,00,00,00,00,00
"2007"=hex:2c,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0b,00,00,00,01,00,02,00,\
  00,00,00,00,00,00,00,00,03,00,00,00,02,00,02,00,00,00,00,00,00,00


Microsoft's KB Writeup:
-----------------------

Microsoft has a write-up at http://support.microsoft.com/kb/914387
3/4 of the way down the page is a description of the Tzedit.exe tool and a download link.

The zipped fix tool "Tzedit.exe" is available at 
http://download.microsoft.com/download/5/8/a/58a208b7-7dc7-4bc7-8357-28e29cdac52f/tzedit.exe.


APPLIES TO Microsoft Windows...
 XP Home Edition
 XP Professional
 2000 Professional Edition
 2000 Server
 2000 Advanced Server