The right to use the materials for any other purpose, including commercial purposes, is expressly prohibited. It may be used only by MIT students, faculty, and staff (Authorized Users) for non-profit academic research and teaching. This documentation and software are licensed under an academic license agreement between MIT and Dassault Systemes Simulia Corp. Optional Local Install Program Directory.For Installation help, download one of these PDF guides.Use these Online Program Directory links if you don't have enough disk space to install the optional Program Directory:.