This page gives details on how to install the Chaos License Server for Chaos products.

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Download the License Server


The Chaos License Server is a secure way to license products online as a highly-encrypted centralized online system that manages licenses for all your systems. Additionally, the Chaos License Server also provides for users to "borrow" licenses from their online accounts and work offline without having Internet connection or a hardware dongle, for up to 14 days at a time.


Installation Process

On the Linux OS, please use your local user with the sudo command instead of the root user to run the installer.


1) Run the Chaos License Server installer that is included with the Chaos product installation package or download the Chaos License Server installer separately from the Downloads section of the Chaos website (you need to be logged in to access it).





2) Please read over the license agreement. To continue with the installation process, click the I agree button.




3) You can choose to accept the default installation parameters, or use the Customize button to change these parameters.


If you are installing for the first time, then Activate during installation option will be checked. If you have a previous version of the Chaos License Server installed and already activated, then this will be unchecked.

Windows Default Install path - C:\Program Files\Chaos Group\VRLService\OLS


Linux Default Install path - /usr/ChaosGroup/VRLService/OLS


macOS Default Install path - /Applications/ChaosGroup/VRLService/OLS



 It is not possible to install an older version of the license server. A notification window appears if you try to do so.

If you however, wish to go with the older version, you need to uninstall the current license server first.


4) The Customize button lets you change the following options:

License server directory – You can select a license server install directory different than the default one. 

Migrate data during installation – When enabled, transfers all of your settings made with older versions of the Chaos License Server, such as enabled dongle subsystem, proxy settings, etc. Disabling this option in the Customize menu installs Chaos License Server with all settings at their defaults and any custom settings from the previous installation are lost.

Add firewall exception – Enabling this option allows the default licensing port (TCP 30304) in the firewall. If you disable it at this step, you will need to manually add firewall exceptions later. 

The Cancel button aborts the installation process.

The Back button lets you go back to the previous step of the installation process.




5) The installation process then checks for running applications, which may take a few minutes so please be patient.




The application may appear to be non-responsive, but it should complete its search for running applications and move on to the next step.


6) The Chaos License Server is then installed on your machine.




7) The application is registered as a service using one of the init systems available within your machine's OS. Use the appropriate service commands to start and stop the license server.


For Windows, use the Services window


For Linux, use SystemV, Upstart or systemd


For macOS, use sudo launchctl load /Library/LaunchDaemons/com.chaos_group.vrol.plist to start the service or sudo launchctl unload /Library/LaunchDaemons/com.chaos_group.vrol.plist to stop the service. The commands are executed in the and prompt you to use your mcOS user password.


8) Enter your credentials, these are the same as the credentials used to log into your account at There is an option to request password recovery if you have forgotten it. Press the Forgot your password? link to proceed.

The Other Sign-in options button redirects you to the login page of





9) The installation process is then complete.

10) If you are installing for the first time and you deselected the Activate during installation, a browser window of the Chaos License Server interface opens. Click the Sing in to enable online licensing link.




If you close your browser window, an easy way to reopen the license server page is from the Manage Chaos License Server link installed with the rest of your Application shortcuts (e.g. Windows Start Menu), which directs you to


11)  Log in to the Chaos Login Portal and enter your credentials.



For more details on how the Licensing System works, please see the License Setup page.


Run Chaos License Server installer safely on macOS Catalina and later

In macOS Catalina and later, when an app fails to install because it hasn’t been notarized or is from an unidentified developer, it will appear in System Preferences > Security & Privacy, under the General tab.

Click Open Anyway to confirm your intent to open or install the app.





The warning prompt reappears, and you can click Open.*





The app is now saved as an exception to your security settings, and you can open it in the future by double-clicking it, just as you can any authorized app.

For more information, see Apple's How to open an app that hasn’t been notarized or is from an unidentified developer article.


Silent Installation

A silent installation allows you to complete Chaos License Server installation without running the installer's GUI. To complete a silent installation, run the installer with the following command:

cgls_win_5.3.0.exe -auto

This installs the license server with the automatic preferences and accepts the EULA.


If you want to specify a custom installation directory or choose not to add firewall exceptions, run the installer with the following command:

cgls_win_5.3.0.exe -gui=0 -quiet=1


The -quiet=1 argument automatically accepts the EULA. You can then select an installation directory and choose whether to include firewall exceptions.