Nothing. Aside from the price, these products are functionally identical to the commercial versions. As a student, you are eligible to purchase one copy of each software at educational discounts. Some software titles such as AutoCAD, Pro/E,3D Studio Max and Quickbooks are functionally identical to the commercial versions but have been specially designed for educational use making it them unsuitable for a professional production environment. Please visit the Agreement Forms section of our Web site for specific Vendor limitations and requirements.