Microsoft Campus Agreement references on wikipedia
Microsoft_Campus_Agreement Microsoft Campus Agreement or MSCA is a program intended to offer significant discounts on Microsoft products to students, faculty, and staff of select universities which enter into a yearly contract with Microsoft. (Windows XP Professional sells, at some University stores, for as low as $10.00 .) Each software package available under the MSCA can be purchased only once. Upon graduation, students can typically receive perpetual licenses for the purchased software.