UPS Service Entries
The Registry does not contain information for the UPS service until you
check the Uninterruptible Power Supply Is Installed checkbox in the UPS
dialog box and then chooses the OK button. Changes to settings should be
made by using the UPS icon in Control Panel.
The UPS service will not start unless the UPS subkey is present in the
Registry, all parameters are present in the Registry, and all values are
within the correct range. If any of these elements are missing or in error,
a message announces that the UPS service is not correctly configured. All
corrections can be made using the UPS icon in Control Panel.
The UPS parameters remain in the Registry if you remove UPS. The path for
the UPS subkey is the following:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UPS
BatteryLife REG_DWORD 2 to 720 minutes
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Default: 2 (minutes)
Specifies the life of the UPS backup battery when fully charged.
CommandFile REG_EXPAND_SZ Filename
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Default: (empty)
Specifies the name of a command file to execute immediately before shutting
down.
FirstMessageDelay REG_DWORD 0 to 120 seconds
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Default: 5 (seconds)
Specifies the number of seconds between initial power failure and the first
message sent to the users. If power is restored within the
FirstMessageDelay time, no message is sent, although the event is logged.
MessageInterval REG_DWORD 5 to 300 seconds
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Default: 120 (seconds)
Specifies the number of seconds between messages sent to users to inform
them of power failure.
Options REG_DWORD Value
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Defines the bit mask for messages related to options in the UPS dialog box,
as the following:
Installed 0x00000001
PowerFailSignal 0x00000002
LowBatterySignal 0x00000004
CanTurnOff 0x00000008
PosSigOnPowerFail 0x00000010
PosSigOnLowBattery 0x00000020
PosSigShutOff 0x00000040
CommandFile 0x00000080
Port REG_SZ Port name
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Default: COM1
Specifies the name of the serial port the UPS is connected to.
RechargeRate REG_DWORD 1 to 250 minutes
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Default: 100 (minutes)
Specifies the recharge rate of the UPS backup battery.