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Windows Server 2008 : Licensing and Activation - Managing Activation Tasks with slmgr

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7/12/2013 7:56:43 PM

The Software Licensing Management tool (slmgr.vbs) is a script you can use to perform several activation tasks. This tool has many capabilities, including simple tasks, such as rearming or activating Windows, to more advanced tasks, such as reviewing the license information or configuring KMS options. The following sections cover the common uses of slmgr.

Note

Although the following sections show the common uses of the slmgr tool, they are not all inclusive.


Managing Basic Tasks with slmgr

The following table shows the syntax of some basic tasks you can perform with slmgr.

slmgr Basic TasksComments
Rearm licensing. C:\>slmgr –rearmResets the activation timer or the activation grace period.

Tip

Windows Server 2008 can be installed for an evaluation period of up to 60 days without activation. At the end of the activation period, you can rearm it for another 60-day period. You can rearm Windows Server 2008 three times for a possible total of 240 days.

Install product key.
-ipk product-key
C:\> slmgr -ipk
12345-12345-12345-
12345-12345-12345

Installs the specified product key. If a key is already installed, the command replaces it. This is needed when you are converting a system to use a different type of activation, such as changing from a retail key to a KMS key.

Note

The key shown is not a valid key.

Activate Windows. C:\>slmgr –atoActivates Windows using the installed product key.
Clear the product key. C:\>slmgr –cpkyRemoves the product key from the registry to prevent disclosure attacks.
Uninstall the product key. C:\>slmgr –upkUninstalls the product key.

Viewing License Information with slmgr

There might be times when you just want to view licensing information. You can do so with slmgr, as shown in the following table.

slmgr License Information SwitchesComments
Display basic license information. C:\>slmgr –dliDisplays basic license information similar to Figure 1.
Display detailed license information. C:\>slmgr –dlvDisplays more detailed information similar to Figure 2.
Show expiration date. C:\>slmgr –xprShows the expiration date of the current license period. If the system is in the grace period, it shows the end of the grace period. If the system is activated by a Key Management Service (KMS) server, it shows the expiration date of the KMS license. Retail licenses and Multiple Access Key (MAK) licenses are permanent and don’t have an expiration after they are activated.

Figure 1. Basic license information for a server


Figure 2. Detailed license information for a server


Tip

If the server is activated, these screens provide different activation information depending on the type of activation.


Managing KMS Servers with slmgr

If your organization uses a KMS server, you might need to use slmgr to manage some of the KMS settings as shown in the following table.

slmgr Switches for KMS ServersComments
Set the KMS TCP port.
slmgr -sport port-number
C:\> slmgr -sport 1690

The default port for KMS is 1688, but you can change it with this command. Change it if there is a conflict where another service needs this port. The example changes the port to 1690.

Tip

If you change the port used on the KMS server, you must also change the port used on the KMS clients.

Change the activation interval for KMS clients.
slmgr /sai interval-
in-minutes
C:\> slmgr -sai 180

The default activation period for KMS clients is 120 minutes, but you can change it to a number between 15 and 43,200 minutes (30 days).
Set the renewal interval.
slmgr /sri renewal-
interval-in-minutes
C:\> slmgr -sri 10080

The default renewal period for clients is 10,080 minutes (7 days), but you can change to a time between 15 minutes to 43,200 minutes (30 days).
Enable DNS publishing by KMS. C:\>slmgr -sdnsEnsures that that the KMS server publishes SRV records to the DNS server. This is the default.

Tip

If this is enabled and the SRV records are not created on DNS, you might need to restart the service that publishes the records. On Windows Server 2008 the service is slsvc and on Windows Server 2008 R2, it’s sppsvc.

Disable DNS publishing by KMS. C:\>slmgr –cdnsDisables publication of the SRV records to the DNS server.

Using KMS Activation Keys

If you are converting a system to use KMS activation, you can use the slmgr tool. The basic syntax to convert to KMS activation is

slmgr -ipk kms-product-key

The following table shows the KMS product key for some common Windows products.

Tip

These keys are the generic product keys and they let clients know that they must activate through a KMS server. The KMS server must have a different key purchased from Microsoft or an authorized reseller.


Operating SystemKMS Product Key
Windows 7 ProfessionalFJ82H-XT6CR-J8D7P-XQJJ2-GPDD4
Windows 7 Enterprise33PXH-7Y6KF-2VJC9-XBBR8-HVTHH
Windows Web Server 2008 R26TPJF-RBVHG-WBW2R-86QPH-6RTM4
Windows Server 2008 R2 StandardYC6KT-GKW9T-YTKYR-T4X34-R7VHC
Windows Server 2008 R2 Enterprise74YFP-3QFB3-KQT8W-PMXWJ-7M648
Windows Server 2008 R2 Datacenter74YFP-3QFB3-KQT8W-PMXWJ-7M648
Windows Server 2008 R2 HPC EditionFKJQ8-TMCVP-FRMR7-4WR42-3JCD7

After installing the key, you can activate the client with the following command:

slmgr -ato

Managing KMS Clients with slmgr

If you modify some of the settings on the KMS server, you might also need to modify settings on the KMS clients. The following table shows some common commands.

slmgr Switches for KMS ClientsComments
Set the name of the KMS server.
slmgr -skms KMS-server-name
C:\> slmgr -skms kms1

Sets the name of the KMS server for the client.
Set the name and port of the KMS server.
slmgr -skms KMS-server-
name:port-number
C:\> slmgr -skms kms1:1688

The default port is 1688, so it isn’t needed if the port hasn’t changed on the KMS server. However, if the port was changed on the KMS server, you can change it on the KMS client with this command.
Clear the KMS information. C:\>slmgr -ckmsClears the KMS server name and port number on the client.
Enable or disable KMS host caching.
C:\> slmgr -skhc
C:\> slmgr –ckhc

Enables KMS host caching with -skhc and disables it with -ckhc.
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