Command to check the type of product key and license you have installed on your system (Server 2008 and Windows 7)


c:\>slmgr /dlv

SLMGR is actually a VB script used to manage licensing information on a Windows7/Windows server 2008 environment

The command SLMGR /DLV will determine the type of license you have installed on the server or Windows 7 machines

For a complete list of parameters and global options, check this list here

typical parameters:
/ipk product_key – Attempts to install a 5×5 product key. The product key provided by the parameter is confirmed valid and applicable to the installed operating system. If not, an error is returned

/ato [Activation ID] – For retail editions and volume systems with a KMS host key or a Multiple Activation Key (MAK) installed, /ato prompts Windows to attempt online activation. The parameter [Activation ID] expands /ato support to identify a Windows edition installed on the computer

/dli [Activation ID | All] – By default, /dli displays the license information for the installed active Windows edition. Specifying the [Activation ID] parameter displays the license information for the specified edition associated with that Activation ID. Specifying the [All] as the parameter will display all applicable installed products’ license information.

/dlv [Activation ID | All] – Display detailed license information.
By default, /dlv displays the license information for the installed operating system. Specifying the [Activation ID] parameter displays the license information for the specified edition associated with that Activation ID

/xpr [Activation ID] – Display the activation expiration date for the product. By default, this refers to the current Windows edition and is primarily useful for KMS clients, because MAK and retail activation is perpetual.

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