Registry Fix for WA Daylight Savings

Following on our popular resource item about the availability of a patch for XP, we found some Vista users had problems even if they tried to apply the patch that is described in this resource article.

The following changes/additions to the Windows registry will get the system to correctly reflect time changes.

The entry is as follows:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\W. Australia Standard Time]
"TZI"=hex:20,fe,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,03,00,00,00,05,00,03,00,00,\
  00,00,00,00,00,00,00,0c,00,00,00,01,00,02,00,00,00,00,00,00,00
"MUI_Display"="@tzres.dll,-610"
"MUI_Dlt"="@tzres.dll,-611"
"MUI_Std"="@tzres.dll,-612"
"Display"="(GMT+08:00) Perth"
"Dlt"="W. Australia Daylight Time"
"Std"="W. Australia Standard Time"
"MapID"="16,17"
"Index"=dword:000000e1

This portion adds a branch for the next 2 years that the trial will run for:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\W. Australia Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d5
"LastEntry"=dword:000007d7
"2005"=hex:20,fe,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,\
  00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
"2006"=hex:20,fe,ff,ff,00,00,00,00,c4,ff,ff,ff,d6,07,01,00,00,00,01,00,00,00,\
  00,00,00,00,00,00,d6,07,0c,00,05,00,01,00,02,00,00,00,00,00,00,00
"2007"=hex:20,fe,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,03,00,00,00,05,00,03,00,\
  00,00,00,00,00,00,00,00,0a,00,00,00,05,00,02,00,00,00,00,00,00,00

For non-technical users we strongly recommend pointing someone with knowledge of the windows registry to this page, as we hold no liability if your computer becomes unusable as a consequence of making changes to the registry. 

After applying the changes above, reboot your PC and your settings should look like this: