JSI Tip 2273. Windows 2000 registry entries for the W32Time service.


To insure that date and time are synchronized thoughout your organization, the W32Time service has been integrated into Window 2000.

The W32Time service entries are located at:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters

Legend: VN/DT = Value Name : Data Type
        Desc. = Description
        Value = Values

VN/DT   AvoidTimeSyncOnWan : REG_DWORD
Desc.   Synchronize with a computer that is at a different site.
Value   0 = Site is ignored \[default\]
        1 = Do NOT synchronize with a time source that is at a different site

VN/DT   GetDcBackoffMaxTimes : REG_DWORD
Desc.   The maximum number of times to double the backoff interval
        when successive attempts to find a domain controller fails.
        An event is logged every time a full wait occurs.
Value   0 = The wait between attempts is minimum and no event is logged
        7 = \[default\]

VN/DT   GetDcBackoffMinutes : REG_DWORD
Desc.   The starting number of minutes to wait before looking for a domain controller,
        if the last attempt failed.
Value   15 = \[default\]

VN/DT   LocalNTP : REG_DWORD
Desc.   Start the SNTP server.
Value   0 = Don't start the SNTP server, unless this computer is a domain controller\[default\]
        1 = Always start the SNTP server

VN/DT   NtpServer : REG_SZ
Desc.   Stores the value from NET TIME /SETSNTP
Value   Blank by default. Sample data value:  192.4.41.40

VN/DT   Period : REG_DWORD 
Desc.   Control how often the time service synchronizes.
Value   0 = once a day
        65535, every 2 days
        65534, every 3 days
        65533, every week (7 days)
        65532, every 45 minutes until 3 good synchronizations occur,
                   then once every 8 hours (3 per day) \[default\]
        65531, every 45 minutes until 1 good synchronization occurs, then once every day
        Number of times per day
          
        NOTE: Period can be a type REG_SZ with special values:

        BiDaily, every 2 days
        Tridaily, every 3 days
        Weekly, every week (7 days)
        SpecialSkew, every 45 minutes until 3 good synchronizations occur,
                     then once every 8 hours (3 per day) \[default\]
        DailySpecialSkew, every 45 minutes until 1 good synchronization occurs, then once every day
 
VN/DT   ReliableTimeSource : REG_DWORD
Desc.   Does this computer have a reliable time.
Value   0 = No \[default\]
        1 = This computer has reliable time (this is only useful on a domain controller)

VN/DT   Type : REG_SZ
Desc.   How does this computer synchronizes.
Value   Nt5DS = synchronize to domain hierarchy or manually configured source \[default\]
        NTP = synchronize to manually configured source
        NoSync = do NOT synchronize time

VN/DT   Adj : REG_DWORD
Desc.   Maintains computer clock information between reboots. Do NOT change.

VN/DT   msSkewPerDay : REG_DWORD
Desc.   Maintains computer clock information between reboots. Do NOT change.
You must shutdown and restart for any changes to take effect.
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