# Revoke a Client License

After you set up licensing, you can revoke licenses at any time, for example, if you want to change the client configuration or reallocate the license. The following procedure revokes the license from a component.

NOTE: If you cannot contact the client (for example, because the machine is inaccessible), you can free the license for reallocation by sending an `AdminRevokeClient` action to the License Server. For more information, see the License Server Administration Guide.

To revoke a license

1. Stop the IDOL solution that uses the license.

2. At the command prompt, run the following command:

       InstallDir/ExecutableName[.exe] –revokelicense –configfile cfgFilename

This command returns the license to the License Server.

You can send the `LicenseInfo` action from a web browser to the running License Server to check for free licenses. In this sample output from the action, one IDOL Server license is available for allocation to a client.

    <autn:Product>
       <autn:ProductType>IDOLSERVER</autn:ProductType>
       <autn:Client>
          <autn:IP>192.123.51.23</autn:IP>
          <autn:ServicePort>1823</autn:ServicePort>
          <autn:IssueDate>1063192283</autn:IssueDate>
          <autn:IssueDateText>10/09/2003 12:11:23</autn:IssueDateText>
       </autn:Client>
          <autn:TotalSeats>2</autn:TotalSeats>
          <autn:SeatsInUse>1</autn:SeatsInUse>
    </autn:Product>

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