Installation file will be downloaded to your computer.
The download file includes modules: 3D Solid Modeling, Construction, Mechanica, Raster, Topoplan
Required only for network licenses. If you downloaded the trial version of nanoCAD, then you don't need the license server.
Install nanoCAD on each computer that will be running it, and then connect each nanoCAD to the license server with the Registration Wizard using the name of the server PC or its IP address.