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Reg add

 

Applies To: Windows Server 2003, Windows Vista, Windows XP, Windows Server 2008, Windows 7, Windows Server 2003 R2, Windows Server 2008 R2, Windows Server 2000, Windows Server 2012, Windows 8

Adds a new subkey or entry to the registry.

Syntax

reg add <KeyName> [{/v ValueName | /ve}] [/t DataType] [/s Separator] [/d Data] [/f]

For examples of how to use this command, see Examples.

Parameters

Parameter

Description

<KeyName>

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.

/v <ValueName>

Specifies the name of the registry entry to be added under the specified subkey.

/ve

Specifies that the registry entry that is added to the registry has a null value.

/t <Type>

Specifies the type for the registry entry. Type must be one of the following:

REG_SZ

REG_MULTI_SZ

REG_DWORD_BIG_ENDIAN

REG_DWORD

REG_BINARY

REG_DWORD_LITTLE_ENDIAN

REG_LINK

REG_FULL_RESOURCE_DESCRIPTOR

REG_EXPAND_SZ

/s <Separator>

Specifies the character to be used to separate multiple instances of data when the REG_MULTI_SZ data type is specified and more than one entry needs to be listed. If not specified, the default separator is \0.

/d <Data>

Specifies the data for the new registry entry.

/f

Adds the registry entry without prompting for confirmation.

/?

Displays help for reg add at the command prompt.

Remarks

  • Subtrees cannot be added with this operation. This version of reg does not ask for confirmation when adding a subkey.

  • The following table lists the return values for the reg add operation.

Value

Description

0

Success

1

Failure

  • For the REG_EXPAND_SZ key type, use the caret symbol ( ^ ) with %" inside the /d parameter

Examples

To add the key HKLM\Software\MyCo on remote computer ABC, type:

REG ADD \\ABC\HKLM\Software\MyCo

To add a registry entry to HKLM\Software\MyCo with a value named Data of type REG_BINARY and data of fe340ead, type:

REG ADD HKLM\Software\MyCo /v Data /t REG_BINARY /d fe340ead

To add a multivalued registry entry to HKLM\Software\MyCo with a value name of MRU of type REG_MULTI_SZ and data of fax\0mail\0\0, type:

REG ADD HKLM\Software\MyCo /v MRU /t REG_MULTI_SZ /d fax\0mail\0\0

To add an expanded registry entry to HKLM\Software\MyCo with a value name of Path of type REG_EXPAND_SZ and data of %systemroot%, type:

REG ADD HKLM\Software\MyCo /v Path /t REG_EXPAND_SZ /d ^%systemroot^%

Additional references

Command-Line Syntax Key