AcQuest California 100S Solution 2008 is designed to run on Windows 95, 98, Me, XP, & Vista. It will prepare California Form 100S, California S Corporation Franchise or Income Tax Return, forms 3539, 3805E, 3805Q, Schedules B, C, D, D-1, QS, K-1, & Deprn Schs, with the unregistered version limitation that data can be printed but not saved. Registered version saves multiple companies. Registered version saves data in a Microsoft Access database file. See http://www.acquest-solutions.com .