Edit the Value of a Custom HTTP Response Header (IIS 7)

Applies To: Windows 7, Windows Server 2008, Windows Server 2008 R2, Windows Vista

Edit the value of a custom HTTP response header when you want to change the information that is passed in a request for a Web page.


Editing a configuration setting changes the setting at the local level and for any child levels that inherit the setting.


For information about the levels at which you can perform this procedure, and the modules, handlers, and permissions that are required to perform this procedure, see HTTP Response Headers Feature Requirements (IIS 7).

Exceptions to feature requirements

  • None

To change the value of an HTTP response header

You can perform this procedure by using the user interface (UI), by running Appcmd.exe commands in a command-line window, by editing the configuration files directly, or by writing WMI scripts.

User Interface

To use the UI

  1. Open IIS Manager and navigate to the level you want to manage. For information about opening IIS Manager, see Open IIS Manager (IIS 7). For information about navigating to locations in the UI, see Navigation in IIS Manager (IIS 7).

  2. On the HTTP Response Headers page, select the HTTP response header that you want to change.

  3. In the Actions pane, click Edit.

  4. In the Edit Custom HTTP Response Header dialog box, edit header information Value box.

  5. Click OK.

Command Line

To change the value of a custom HTTP response header, use the following syntax:

appcmd set config /section:httpProtocol /customHeaders.[name='string']. value:string

The variable namestring is the name of the header you want to change, and the variable valuestring is the value that you want to set for the header. For example, to specify a policy reference file location as http://contoso.com/P3P.xml for a header named P3P, type the following at the command prompt, and then press ENTER:

appcmd set config /section:httpProtocol /customHeaders.[name='P3P'].value:policyRef="""http//contoso.com/P3P.xml"""


When you must include double-quotation marks (") around a value, such as the URI http://contoso.com/P3P.xml in the previous example, you must escape the quotation character by enclosing it in double-quotation marks.

For more information about Appcmd.exe, see Appcmd.exe (IIS 7).


The procedure in this topic affects the following configuration elements:


For more information about IIS 7 configuration, see IIS 7.0: IIS Settings Schema on MSDN.


Use the following WMI classes, methods, or properties to perform this procedure:

  • HTTPProtocolSection.CustomHeaders property

For more information about WMI and IIS, see Windows Management Instrumentation (WMI) in IIS 7. For more information about the classes, methods, or properties associated with this procedure, see the IIS WMI Provider Reference on the MSDN site.

See Also


Configuring HTTP Response Headers in IIS 7