The OpenInsight 10.0 License Renewal and Installation/Upgrade Authorization process has changed from previous versions.  Authorization codes are no longer written to the OEngine.dll file.  The authorization code is now written to the RevEngine.lic file found in your OInsight10 directory.  This eliminates the need to have users log off and the need to stop your OEngineServer service to update your license.

The process of assigning a new serial number to a copy of OpenInsight has also been changed.

Documentation

OpenInsight 10 License Renewal and Installation/Upgrade Authorization Process