Warning: two scripts in Proline Admin distribution are not well written. You should modify these scripts to be able to use them.
Involved scripts are “run_cmd.bat” (or .sh) and “setup_proline.bat” (or .sh) where you will have to change proline-admin-${admin.version}.jar with proline-admin-gui-2.1.2.jar.
If you have any trouble, you should tell us and we will provide you with correct version of the script.