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FlexSim 25.2.0 includes upgraded third-party licensing libraries which require an updated set of license server files based on Flexnet Publisher version 11.19.8.0 or higher. For background, see Version Compatibility Between Components. In terms of that article, the client library linked to the FlexEnabled application (FlexSim) was upgraded, so all the licensing components further up the list also require an upgrade. Thus, FlexSim has a new set of license server files available. Download the new license server files here:
https://flexs.im/lmtools-download
Suggested instructions:
1. Download the new license server files (.zip archive) and extract to a location right next to your previous license server tools, like in this screenshot:
2. Install the latest anchor service: Browse the newly extracted files to find flexsimserveractutil.exe. Right click and choose Run as Administrator. From the main menu of flexsimserveractutil.exe, go to Tools > Licensing Service > Install Anchor Service. This will install the updated version of the licensing anchor service, compatible with FlexSim 25.2 and higher. For more information, see License Server - FlexNet Licensing Service 64.
3. Start the new lmtools.exe from the new folder. Your FlexSim_License service should be listed there.
4. Update the paths for lmgrd.exe, flexsim.lic, and log.log to point to the new files in the newly extracted folder.
5. After editing the three paths, save the service (button in upper right).
6. Check the service using Windows Services. Make sure that the "log on" tab is still set to use a "local system account".
7. Make sure the new lmgrd.exe and new flexsim.exe are allowed through the firewall. See lmtools - Add Windows Firewall exceptions.
8. Restart the service, either from the Start/Stop/Reread tab of lmtools or from Windows Services.
9. After you confirm everything is working properly, you can safely delete your old folder containing the previous version of FlexSim's license server files.
If you run into any troubles, try stopping your existing FlexSim_License service first, then repeat the above steps.