HKCU\Software\Policies\Microsoft\Control Panel\International\
The Calendars subkey in the Policies subkey contains entries that store Group Policy settings for calendar options in Regional Options in Control Panel. The entries in this subkey are created and maintained by Group Policy and read and interpreted by Regional Options.
There is also a Regional Options setting for the desktop in Group Policy in HKCU\Software\Policies\Microsoft\Control Panel\Desktop.
Note
The policy-related entries in the Calendars subkey take precedence over non-policy related entries in HKCU\Control Panel\International\Calendars.
Tip
For detailed information about particular Group Policy settings, see the Group Policy Reference (Gp.chm) on the Windows 2000 Resource Kit companion CD.
For general information about Group Policy, see Group Policy in Windows 2000 Help.
To see a table associating policies with their corresponding registry entries, see the Group Policy Reference Table.