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Last Updated: 02nd August 2011 03:15:50 pm

LM-X has built-in functionality you can use to prohibit usage of (blacklist) a particular license and re-host a blacklisted license. 

To blacklist and re-host a license:

1. To revoke an existing license, set a blacklisting flag (LMX_OPT_BLACKLIST).
   
   Blacklisting applies to a specific feature in the license file, based on the unique KEY value of the feature. If this flag is set for a feature that is then checked out and checked back in, the feature will become blacklisted and will no longer be available for checkout. Instead, an error message that informs the end user of the unavailability of the feature will be displayed, or in the case of a network license, will be treated as if it doesn't exist.
   
   
2. To re-host a blacklisted license, replace the blacklisted license file with a newly generated license file.
   
   Using the new license file, the feature will once again be available for checkout. Blacklisting can be verified using the end user utility lmxendutil, which can print out a list of blacklisted licenses.

If network server re-hosting is frequent, you can manage re-hosting in a different way, such as locking the license to a dongle, as described in Hostid values in the LM-X Developers Guide.

For detailed information on using client store and the LM-X API functions discussed in this article, see the LM-X Developers Guide.