C:\WINDOWS>REG DELETE /?

Console Registry Tool for Windows - version 3.0
Copyright (C) Microsoft Corp. 1981-2001.  All rights reserved


REG DELETE KeyName [/v ValueName | /ve | /va] [/f]

 KeyName    [\\Machine\]FullKey
   Machine  Name of remote machine - omitting defaults to the current machine
            Only HKLM and HKU are available on remote machines
   FullKey  ROOTKEY\SubKey
   ROOTKEY  [ HKLM | HKCU | HKCR | HKU | HKCC ]
   SubKey   The full name of a registry key under the selected ROOTKEY
 ValueName  The value name, under the selected Key, to delete
            When omitted, all subkeys and values under the Key are deleted
 /ve        delete the value of empty value name <no name>
 /va        delete all values under this key
 /f         Forces the deletion without propmt

Examples:

 REG DELETE HKLM\Software\MyCo\MyApp\Timeout
   Deletes the registry key Timeout and its all subkeys and values

 REG DELETE \\ZODIAC\HKLM\Software\MyCo /v MTU
   Deletes the registry value MTU under MyCo on ZODIAC



C:\WINDOWS>REG COPY /?

Console Registry Tool for Windows - version 3.0
Copyright (C) Microsoft Corp. 1981-2001.  All rights reserved


REG COPY KeyName1 KeyName2 [/s] [/f]

 KeyName    [\\Machine\]FullKey
   Machine  Name of remote machine - omitting defaults to the current machine
            Only HKLM and HKU are available on remote machines
   FullKey  ROOTKEY\SubKey
   ROOTKEY  [ HKLM | HKCU | HKCR | HKU | HKCC ]
   SubKey   The full name of a registry key under the selected ROOTKEY
 /s         Copies all subkeys and values
 /f         Forces the copy without propmt

Examples:

 REG COPY HKLM\Software\MyCo\MyApp HKLM\Software\MyCo\SaveMyApp /s
   Copies all subkeys and values under the key MyApp to the key SaveMyApp

 REG COPY \\ZODIAC\HKLM\Software\MyCo HKLM\Software\MyCo1
   Copies all values under the key MyCo on ZODIAC to the key MyCo1
   on the current machine



C:\WINDOWS>REG SAVE /?

Console Registry Tool for Windows - version 3.0
Copyright (C) Microsoft Corp. 1981-2001.  All rights reserved


REG SAVE KeyName FileName

 KeyName    ROOTKEY\SubKey
   ROOTKEY  [ HKLM | HKCU | HKCR | HKU | HKCC ]
   SubKey   The full name of a registry key under the selected ROOTKEY
 FileName   The name of the disk file to save. If no path is specified, the
            file is created in the current folder of the calling process

Examples:

 REG SAVE HKLM\Software\MyCo\MyApp AppBkUp.hiv
   Saves the hive MyApp to the file AppBkUp.hiv in the current folder