Windows XP has an integrated time synchronisation service, installed by default, that can synchronise to a NTP Time Server. Indeed, by manipulating registry settings for the service it can act as both an SNTP client and server to synchronise other network clients.
The 'Windows Time' service should be present in the systems service list. The application executable is 'w32time.exe'. The parameter list for w32time can be found in the registry at:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time
To configure a Windows XP machine to synchronise to an external NTP server, edit the following registry entries:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters\Type
Set value to NTP.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config\AnnounceFlags
Set the value to 5 for reliable time source
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NTPClient\SpecialPollInterval
Set this to the preiod in seconds that the Windows XP machine should poll the NTP server. A recommended value is 900 seconds which equates to every 15 minutes.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NTPServer\Enabled
Change this value to 1.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters\NtpServer
Provide a list of IP address or DNS names, seperated by a space, of NTP server that the Windows XP machine can synchronise to.
More information on the Windows XP Time service can be found at http://support.microsoft.com/kb/314054/EN-US/ |
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