I have been using a licensed version of PlanAhead for some time. The license has not expired, but my new version of PlanAhead does not work with the older license.
Example:
INFO: [HD-Licensing 0] Attempting to get a license: PlanAhead
Security_ISE, licenseName='PlanAhead' version='2008.08', seats=1.
ERROR: [HD-Licensing 0] Failed to get a license: PlanAhead
ERROR: [HD-Licensing 1] NOTICE: A license is required for 'PlanAhead'.
ERROR: [HD-Licensing 2] License server system does not support this version of this feature.
Feature: PlanAhead
License path: 2200@server1 c:/home/.Xilinx/*.lic:/CAE/Xilinx/data/*.lic:
FLEXnet Licensing error:-25,147
For further information, refer to the FLEXnet Licensing End User Guide,
available at "www.macrovision.com".
FLEX error code: -25