Installation and Operations Guide > Installing on Microsoft Windows > 2.3 Licensing Installation (Optional)
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2.3 Licensing Installation1 (Optional)
Patran uses FLEXlm based licensing. If you already have FLEXlm setup as a license server, you do not need to complete this installation.
You will need to have a FLEXlm server on your Windows workstation or on a UNIX workstation on the same TCP/IP network.
To install FLEXlm:
1. Select MSC.Licensing from the main menu in the Setup Wizard.
2. A Server Install installs the FLEXlm server (Note: It is highly recommended that you first acquire authorization codes from MSC). The Setup Wizard will prompt you for an existing license.dat file (supplied by MSC), and will start the appropriate Windows services. For additional information see Installing the MSC.License Server, 121.

1 A FLEXlm 11.6 lisense server is required for all platforms. If your installation points to an older license server, you will have to install the new FLEXlm license server.