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KeyName1 data is equal to KeyName2 data.
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KeyName1 data is less than KeyName2 data.
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KeyName1 data is greater than KeyName2 data.
Examples
To compare all values under the key MyApp with all values under the key SaveMyApp, type:
reg compare HKLM\Software\MyCo\MyApp HKLM\Software\MyCo\SaveMyApp
To compare the value for the Version under the key MyCo and the value for the Version under the key MyCo1, type:
reg compare HKLM\Software\MyCo HKLM\Software\MyCo1 /v Version
To compare all subkeys and values under HKLM\Software\MyCo on the computer named ZODIAC, with all subkeys and values under HKLM\Software\MyCo on the local computer, type:
reg compare \\ZODIAC\HKLM\Software\MyCo \\. /s
reg copy
Copies a registry entry to a specified location on the local or remote computer.
Syntax
reg copy <keyname1> <keyname2> [/s] [/f]
Parameters
Parameter
Description
<keyname1>
Specifies the full path of the subkey or entry to be added. To specify a remote computer, include the computer name (in the format \\<computername>\) as part of the keyname. Omitting \\<computername>\ causes the operation to default to the local computer. The keyname must include a valid root key. Valid root keys for the local computer are: HKLM, HKCU, HKCR, HKU, and HKCC. If a remote computer is specified, valid root keys are: HKLM and HKU. If the registry key name contains a space, enclose the key name in quotes.
<keyname2>
Specifies the full path of the second subkey to be compared. To specify a remote computer, include the computer name (in the format \\<computername>\) as part of the keyname. Omitting \\<computername>\ causes the operation to default to the local computer. The keyname must include a valid root key. Valid root keys for the local computer are: HKLM, HKCU, HKCR, HKU, and HKCC. If a remote computer is specified, valid root keys are: HKLM and HKU. If the registry key name contains a space, enclose the key name in quotes.
/s
Copies all subkeys and entries under the specified subkey.
/f
Copies the subkey without prompting for confirmation.
/?
Displays help at the command prompt.
<keyname1>
\\<computername>\
\\<computername>\
<keyname2>
\\<computername>\
\\<computername>\
Remarks
This command doesn't ask for confirmation when copying a subkey.
The return values for the reg compare operation are:
Value
Description
0
Success
1
Failure
Examples
To copy all subkeys and values under the key MyApp to the key SaveMyApp, type:
reg copy HKLM\Software\MyCo\MyApp HKLM\Software\MyCo\SaveMyApp /s
To copy all values under the key MyCo on the computer named ZODIAC to the key MyCo1 on the current computer, type:
reg copy \\ZODIAC\HKLM\Software\MyCo HKLM\Software\MyCo1
reg delete
Deletes a subkey or entries from the registry.
Syntax
reg delete <keyname> [{/v valuename | /ve | /va}] [/f]
Parameters
Parameter
Description
<keyname1>
Specifies the full path of the subkey or entry to be deleted. To specify a remote computer, include the computer name (in the format \\<computername>\) as part of the keyname. Omitting \\<computername>\ causes the operation to default to the local computer. The keyname must include a valid root key. Valid root keys for the local computer are: HKLM, HKCU, HKCR, HKU, and HKCC. If a remote computer is specified, valid root keys are: HKLM and HKU. If the registry key name contains a space, enclose the key name in quotes.