There is no separate license for ARIA. You need a license for CNS that allows you to include ARIA and recompile. If you install ARIA, you accept the following:

Copying and redistribution of these files is authorized only if either
(1) you make absolutely no changes to your copy, including name, or
(2) if you do make changes, you rename the files and clearly mark the changes.

The information in this software is subject to change without notice and should not be construed as a commitment by the Institut Pasteur or by the authors. Neither the Institut Pasteur, Yale University, nor the authors assume responsibility for the use or reliability of this software. We do hope, however, to get responses from users, especially when errors have been found.

contact: Jens Linge, Michael Nilges