Revokes or un-revokes a license key.

When a subscription is renewed, each activated license is automatically reactivated on the server and a new computer bound key is generated with a new expiry date. When customers reactivate their license, they receive the new computer bound key with the new expiry date, thus extending their subscription period.

Note that to call this function, you must:

  • Set the AdminEncryptionKey
bool RevokeLicense (string webServiceUrl, string activationKey, 
                    bool revoke, out string response)


webServiceUrlstringURL to the QLM License Server.
activationKeystringactivation key to extend
revokebooltrue to revoke a license, false to un-revoke it.
responsestringXML fragment containing the result of the call.


boolreturns true if the operation succeeded; false otherwise.

Response XML format

<?xml version='1.0' encoding='UTF-8'?>
<result>Successfully updated license information for ActivationKey=XYZ.</result>

Example error response

<?xml version='1.0' encoding='UTF-8'?>
<error>Details about the error</error>


Use ParseResults to interpret the results of the call and load the returned data into an ILicenseInfo object.

ILicenseInfo li = new LicenseInfo();
string message = string.Empty;
if (lv.QlmLicenseObject.ParseResults(response, ref li, ref message))
  // The operation  was successful  
  // The operation failed