New-ItemProperty

Applies To: Windows PowerShell 2.0

Creates a new property for an item and sets its value. For example, you can use New-ItemProperty to create and change registry values and data, which are properties of a registry key.

Syntax

New-ItemProperty [-LiteralPath] <string[]> [-Name] <string> [-Credential <PSCredential>] [-Exclude <string[]>] [-Filter <string>] [-Force] [-Include <string[]>] [-PropertyType <string>] [-Value <Object>] [-Confirm] [-WhatIf] [-UseTransaction] [<CommonParameters>]

New-ItemProperty [-Path] <string[]> [-Name] <string> [-Credential <PSCredential>] [-Exclude <string[]>] [-Filter <string>] [-Force] [-Include <string[]>] [-PropertyType <string>] [-Value <Object>] [-Confirm] [-WhatIf] [-UseTransaction] [<CommonParameters>]

Description

The New-ItemProperty cmdlet creates a new property for a specified item and sets its value. Typically, this cmdlet is used to create new registry values, because registry values are properties of a registry key item.

This cmdlet does not add properties to an object. To add a property to an instance of an object, use the Add-Member cmdlet. To add a property to all objects of a particular type, edit the Types.ps1xml file.

Parameters

-Credential <PSCredential>

Specifies a user account that has permission to perform this action. The default is the current user.

Type a user name, such as "User01" or "Domain01\User01", or enter a PSCredential object, such as one generated by the Get-Credential cmdlet. If you type a user name, you will be prompted for a password.

This parameter is not supported by any providers installed with Windows PowerShell.

Required?	false
Position?	named
Default Value	none
Accept Pipeline Input?	true (ByPropertyName)
Accept Wildcard Characters?	false

-Exclude <string[]>

Omits the specified items. Wildcards are permitted.

Required?	false
Position?	named
Default Value	none
Accept Pipeline Input?	false
Accept Wildcard Characters?	false

-Filter <string>

Specifies a filter in the provider's format or language. The value of this parameter qualifies the Path parameter.

The syntax of the filter, including the use of wildcards, depends on the provider. Filters are more efficient than other parameters, because the provider applies them when retrieving the objects rather than having Windows PowerShell filter the objects after they are retrieved.

Required?	false
Position?	named
Default Value	none
Accept Pipeline Input?	false
Accept Wildcard Characters?	false

-Force

Allows the cmdlet to create a property on an object that cannot otherwise be accessed by the user. Implementation varies from provider to provider. For more information, see about_Providers.

Required?	false
Position?	named
Default Value	none
Accept Pipeline Input?	false
Accept Wildcard Characters?	false

-Include <string[]>

The value of this parameter qualifies the Path parameter. Enter a path element or pattern, such as "*.txt". Wildcards are permitted.

Required?	false
Position?	named
Default Value	none
Accept Pipeline Input?	false
Accept Wildcard Characters?	false

-LiteralPath <string[]>

Specifies a path to the item property. The value of LiteralPath is used exactly as it is typed. No characters are interpreted as wildcards. If the path includes escape characters, enclose it in single quotation marks. Single quotation marks tell Windows PowerShell not to interpret any characters as escape sequences.

Required?	true
Position?	1
Default Value	none
Accept Pipeline Input?	true (ByPropertyName)
Accept Wildcard Characters?	false

-Name <string>

Specifies a name for the new property. If the property is a registry entry, this parameter specifies the name of the entry.

Required?	true
Position?	2
Default Value	none
Accept Pipeline Input?	true (ByPropertyName)
Accept Wildcard Characters?	false

-Path <string[]>

Specifies the path to the item. This parameter identifies the item to which the new property will be added.

Required?	true
Position?	1
Default Value	none
Accept Pipeline Input?	false
Accept Wildcard Characters?	false

-PropertyType <string>

Specifies the type of property that will be added.

Required?	false
Position?	named
Default Value	none
Accept Pipeline Input?	true (ByPropertyName)
Accept Wildcard Characters?	false

-Value <Object>

Specifies the property value. If the property is a registry entry, this parameter specifies the value of the entry.

Required?	false
Position?	named
Default Value	none
Accept Pipeline Input?	true (ByPropertyName)
Accept Wildcard Characters?	false

-Confirm

Prompts you for confirmation before executing the command.

Required?	false
Position?	named
Default Value	none
Accept Pipeline Input?	false
Accept Wildcard Characters?	false

-WhatIf

Describes what would happen if you executed the command without actually executing the command.

Required?	false
Position?	named
Default Value	none
Accept Pipeline Input?	false
Accept Wildcard Characters?	false

-UseTransaction

Includes the command in the active transaction. This parameter is valid only when a transaction is in progress. For more information, see about_Transactions.

Required?	false
Position?	named
Default Value	none
Accept Pipeline Input?	false
Accept Wildcard Characters?	false

<CommonParameters>

This command supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, OutBuffer, OutVariable, WarningAction, and WarningVariable. For more information, see about_CommonParameters.

Inputs and Outputs

The input type is the type of the objects that you can pipe to the cmdlet. The return type is the type of the objects that the cmdlet returns.

Inputs	None You cannot pipe input to New-ItemProperty.
Outputs	System.Management.Automation.PSCustomObject New-ItemProperty returns a custom object that contains the new property.

Notes

The New-ItemProperty cmdlet is designed to work with the data exposed by any provider. To list the providers available in your session, type "Get-PSProvider". For more information, see about_Providers.

Example 1

C:\PS>new-itemproperty -path HKLM:\Software\MyCompany -name NoOfEmployees -value 822

C:\PS> get-itemproperty hklm:\software\mycompany


PSPath        : Microsoft.PowerShell.Core\Registry::HKEY_LOCAL_MACHINE\software\mycompany
PSParentPath  : Microsoft.PowerShell.Core\Registry::HKEY_LOCAL_MACHINE\software
PSChildName   : mycompany
PSDrive       : HKLM
PSProvider    : Microsoft.PowerShell.Core\Registry
NoOfLocations : 2
NoOfEmployees : 822

Description

-----------

This command adds a new registry entry, NoOfEmployees, to the MyCompany key of the HKLM:\Software hive.

The first command uses the Path parameter to specify the path to the MyCompany registry key. It uses the Name parameter to specify a name for the entry and the Value parameter to specify its value.

The second command uses the Get-ItemProperty cmdlet to see the new registry entry.

Example 2

C:\PS>get-item -path HKLM:\Software\MyCompany | new-Itemproperty -name NoOfLocations -value 3

Description

-----------

This command adds a new registry entry to a registry key. To specify the key, it uses a pipeline operator (|) to send an object representing the key to the New-ItemProperty cmdlet.

The first part of the command uses the Get-Item cmdlet to get the MyCompany registry key. The pipeline operator (|) sends the results of the command to the New-ItemProperty cmdlet, which adds the new registry entry, NoOfLocations, and its value, 3, to the MyCompany key.

This command works because the parameter-binding feature of Windows PowerShell associates the path of the RegistryKey object that Get-Item returns with the LiteralPath parameter of New-ItemProperty. For more information, see about_Pipelines.

See Also

Concepts

about_Providers
Clear-ItemProperty
Copy-ItemProperty
Move-ItemProperty
Rename-ItemProperty
Get-ItemProperty
Set-ItemProperty
Remove-ItemProperty