Value Name:
Value Type:
Default Data:
Options:
Notes:
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Clock Change Monitor
REG_SZ
True
True or False
If enabled, Domain Time monitors changes to the
system clock made by other programs (including the foreground user changing the time or date with
the control panel applet or the command-line TIME and DATE commands).
When the Clock Change Monitor is enabled on a client and the clock changes unexpectedly, the
client will immediately resynchronize with its server.
You may turn the Clock Change Monitor off if your setup requires having machines with different
times (usually only in labs or testing environments). If Clock Change Monitor is disabled and
you change a machine's time, it will stay changed until the next cascade signal or regular sync
interval. Changes take effect immediately, and may be made by editing the registry or
remotely from Domain Time II Manager.
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Value Name:
Value Type:
Default Data:
Notes:
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Current Version
REG_SZ
Varies
This value is set by the system for informational purposes. Changing it has no effect.
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Value Name:
Value Type:
Default Data:
Options:
Notes:
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Ephemerides
REG_DWORD
N/A
This value is used by the system. Do not edit.
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Value Name:
Value Type:
Default Data:
Options:
Notes:
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Honor Pulse
REG_SZ
True
True or False
If enabled (True), the client will respond to a Domain Time II Heartbeat Pulse
by resynchronizing with its time server. If disabled (False), the client will ignore Heartbeat Pulses.
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Value Name:
Value Type:
Default Data:
Notes:
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Machine Statistics
REG_BINARY
N/A
This binary value contains the statistics, as of the last update,
that can be viewed from DTCheck, the Domain Time II Manager, or the system tray icon. Do not
edit.
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Value Name:
Value Type:
Default Data:
Range:
Notes:
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Max Slew Correction (milliseconds)
REG_DWORD
30000 (decimal)
1 to 36000000 (decimal)
This value specifies the upper limit, in milliseconds, of variance that
Domain Time will attempt to correct by slewing instead of setting the clock backwards.
The older registry entry controlling this function, Max Slew Correction (seconds),
has been deprecated.
For backwards compatibility, the existing DOMTIME.INI entry corresponding to this function is
"MaxBackwardSlew=x seconds" which is automatically converted to milliseconds when
setting this registry value. If you need to preset this value in exact milliseconds in your DOMTIME.INI
file, delete the existing "MaxBackwardSlew=" line and substitute the new line "DWORD:Max Slew Correction (milliseconds)=x"
where x is the desired setting in milliseconds.
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Value Name:
Value Type:
Default Data:
Options:
Notes:
|
Never Step Clock
REG_SZ
False
True or False
When enabled, causes Domain Time to make clock corrections only by slewing. This prevents the clock from
being stepped to make corrections such as those normally done during startup or from Clock Change Monitor,
manual sync triggers, etc.
The behavior of this setting is modified by the Override Max Disparity registry setting (see below).
Caution: Use of this option may prevent Domain Time from successfully being able to synchronize with
a time source if the time correction is too large to accomplish using slewing. See the Max Slew Correction (milliseconds)
registry setting for more info.
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Value Name:
Value Type:
Default Data:
Range:
Notes:
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Override Max Disparity
REG_DWORD
Not present (same as zero)
0, 1, 2, 3, or 4
Domain Time II Thin Clients have a fixed limit on how large a clock variance it will attempt to correct (referred to as Max Disparity).
The Max Disparity limit on Thin Client is 7200 seconds. Max Disarity is not configurable on Thin Client. If you need to adjust the
Max Disparity limit, you should use Domain Time II Full Client instead.
This registry entry controls how Domain Time decides when to override the Max Disparity correction limit.
- 0 or not present (Auto)
Domain Time will override the disparity settings during startup, on Clock Change Monitor event detection,
receiving sync triggers/cascades from management components, or from Control Panel applet (CPL) signals. Does NOT ever override the Never Step Clock setting.
- 1 (Always)
Domain Time will always override the disparity settings. This is the same as not having a maximum disparity setting at all.
Always honors Never Step Clock setting.
- 2 (Never)
Domain Time will never override the disparity settings. Always honors Never Step Clock.
This option may prevent your machine from syncing until you manually set the time to within the set Max Disparity range.
- 3 (Startup only)
Domain Time will override the disparity settings and Never Step Clock only until the first
time after startup that it has set its own time correctly. Thereafter, it behaves as if you had set the option to 2.
- 4 (Limit CCM)
Clock Change Monitor signals do not override the disparity or Never Step Clock settings.
Startup, management, or CPL signals will override the disparity and Never Step Clock settings.
Changes to the Override Max Disparity value take effect immediately. You do
not have to stop and restart the service or reboot the machine.
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Value Name:
Value Type:
Default Data:
Options:
Notes:
|
Respond to DTCheck
REG_SZ
True
True or False
Corresponds to the Respond to DTCheck option on the control panel
applet or Domain Time II Manager. If enabled (True), the client will respond when Domain
Time II Manager, Domain Time II Monitor Service, or the DTCheck utility attempts to
survey machines or calculate network-wide variances. If disabled (False), the client
will ignore DTCheck requests.
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Value Name:
Value Type:
Default Data:
Range:
Notes:
|
Send Port DT2
REG_DWORD
0
1 to 65535 (decimal)
Source port used when sending Domain Time II requests. Zero (the default) means use any available
port. Any other value means use the specified port. See KB2001.A04
for more details.
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Value Name:
Value Type:
Default Data:
Range:
Notes:
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Send Port NTP
REG_DWORD
0
1 to 65535 (decimal)
Source port used when sending NTP/SNTP (RFC 1769) requests. Zero (the default) means use any available
port. Any other value means use the specified port. See KB2001.A04
for more details.
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Value Name:
Value Type:
Default Data:
Range:
Notes:
|
Send Port TIME
REG_DWORD
0
1 to 65535 (decimal)
Source port used when sending TIME/ITP (RFC 868) requests. Zero (the default) means use any available
port. Any other value means use the specified port. See KB2001.A04
for more details.
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Value Name:
Value Type:
Default Data:
Notes:
|
Service Installed
REG_SZ
True or False
Used internally. Do not edit.
|
Value Name:
Value Type:
Default Data:
Notes:
|
Service Running
REG_SZ
True or False
Used internally. Do not edit.
|
Value Name:
Value Type:
Default Data:
Notes:
|
Thin Client
REG_SZ
True
Used internally by the system. Do not edit.
|
Value Name:
Value Type:
Default Data:
Options:
Notes:
|
Use DHCP
REG_SZ
True
True or False
Corresponds to the Use DHCP checkbox on the control panel
applet. If enabled (True), and automatic settings are also enabled, then the
client will query the network for DHCP servers as part of its discovery process.
If a DHCP server is found, the client will ask the DHCP server if it knows of
any time servers. If disabled (False), the client will not attempt to locate
or use a DHCP server. Note: The client does not have to obtain its own
IP address from a DHCP server in order to use DHCP to find a time server.
|
Value Name:
Value Type:
Default Data:
Range:
Notes:
|
Override Max Disparity
REG_DWORD
Not present (same as zero)
0, 1, 2, or 3
If not present or set to zero, Domain Time will decide when to override the maximum disparity setting,
as explained above.
If set to 1, Domain Time will always override the maximum disparity setting. This is the same
as not having a maximum disparity setting at all.
If set to 2, Domain Time will never override the maximum disparity setting. This option may
prevent your machine from syncing until you manually set the time to within the maximum disparity. If
the machine is a Domain Time Server, it will normally refuse to serve the time until its own time has
been set, so selecting a value of 2 may impact your entire network.
If set to 3, Domain Time will override the maximum disparity setting only until the first time after
startup that it has set its own time correctly. Thereafter, it behaves as if you had set the option to 2.
Changes to the Override Max Disparity value take effect immediately. You do
not have to stop and restart the service or reboot the machine.
|
Value Name:
Value Type:
Default Data:
Options:
Notes:
|
Set Processor Affinity
REG_DWORD
0
00-FF (hex)
If not present or set to zero, Domain Time will not attempt to restrict time-sensitive operations to
any particular processor in a multi-processor system. In some systems, the majority of hardware interrupt
handling occurs on only one processor (typically processor 0), so it may provide increased accuracy if Domain Time
uses only other processors during time-sensitive operations. This value is a hex bitmap representing
the processors in the system, with bit 0 representing the first processor, bit 1 representing the
second processor, and so forth.
|
Value Name:
Value Type:
Default Data:
Range:
Notes:
|
Set Timer Resolution
REG_DWORD
0
0-16
If not present or set to zero, Domain Time will use the system-default best-available timer resolution.
If set to any other value, Domain Time will use timeBeginPeriod(x) and timeEndPeriod(x) before and after
any time-sensitive calculation. In general, this value should either be zero or 1.
|
Value Name:
Value Type:
Default Data:
Options:
Notes:
|
Windows Time Agent Startup Check [version]
REG_SZ
True
True or False
This value is created the first time a new or upgraded version runs. If not present or set to False,
Domain Time will check the domtime.ini file for instructions about overriding the handling of the Windows
Time Agent Control Panel applet. If set to True Domain Time will use the current settings. You may
set this value to False to force a one-time re-read of the domtime.ini at next startup.
|
Value Name:
Value Type:
Default Data:
Options:
Notes:
|
Force Windows Time State
REG_SZ
varies
May be blank, Not Touched, Disabled, NoSync, NTP, NT5DS, or AllSync
Controls how Domain Time interacts with Windows Time when the Domain Time service starts.
If set to Disabled, Domain Time will make sure the Windows Time service is disabled and not running.
If blank or set to Not Touched, Domain Time will not check or change the operation of the Windows Time service.
If set to any other value, Domain Time will make sure the Windows Time service is enabled and running, and
that its sync type is set to the specified value.
|
Value Name:
Value Type:
Default Data:
Options:
Notes:
|
Force Windows Time Agent Disable
REG_SZ
Not present or False
True or False
If not present or False, the Windows Time Agent portion of the Windows Time Agent Control Panel applet will
use the default or control-panel set options to determine if Agent should be running. If set to True,
Domain Time will ensure that the Agent portion of Windows Time Agent Control Panel applet is not running.
|
Value Name:
Value Type:
Default Data:
Notes:
|
Clock Adjustment Locked Rate
REG_DWORD
0
If zero or not present, overall system slewing will analyze the clock drift and adjust the clock rate to
minimize future corrections. If set to any other value between 80% and 120% of the default clock rate,
overall system slewing will set the clock rate to the given value and not analyze the clock drift further.
Values below the minimum or in excess of the maximum will be ignored. Useful chiefly if the clock rate
(also called Phase Adjustment) regularly changes within a small range and you want to select the best
rate manually.
|
Value Name:
Value Type:
Default Data:
Range:
Notes:
|
Clock Change Sensitivity
REG_DWORD
0
0-255
If not present or set to zero, Domain Time will use a value of 2 on NT-class systems, and a value of 10
on Win9x systems. This value represents the number of seconds the system clock must differ from the expected
value in order for Clock Change Monitor to decide an unauthorized change has been made to the system
clock.
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