After you have decided which license model to use, you need to license your copy of MLDesigner.
To do this, log in to your account on mldesigner.com, go to the support area, and choose License Request in the menu on the left. You will be presented with the license request form. Fill in your personal details, if they are not already filled in. Next you need to provide details for the license.
In order to determine the HostID for your machine, you first need to install MLDesigner. After the installation has finished successfully, go to the installation directory (by default %SYSTEMDRIVE%\MLDesign\MLDesigner) and run mldhostinfo. This will show the MLDesigner Host Information dialog, which provides the necessary information for your machine.
In order to determine the HostID for a machine that is not running MLDesigner, you need to download the FLEXnet Licensing Essentials from our website, and execute mldhostid on a command line.