You must have ADS 2009 installed before installing this hotfix.
This hot fix is required to:
Enable your new licenses to work seamlessly with the ADS 2009.
Address a timeout issue with Design Guides.
NOTE 1: This is an important Download. If you have received new or renewal licenses that include any of the new ADS bundled licenses and/or elements, you will be instructed to download and install a licensing hot fix.
NOTE 2: An updated version of this licensing hot fix is available as of April 2009 to address the timeout issue with Design Guides. For customers that have already installed the initial version of the licensing hot fix prior to April 2009, please install this updated version.