Windows XP™ (SP 2 recommended, 32-bit editions only),
Windows 2000™ (SP 4 recommended),
Windows 2003 Server™ (SP 1 recommended)
Windows Vista (32-bit editions only - 64-bit editions are not supported at this time) (System Architect supports Windows Vista under the Classic Theme)
1 GHz processor or faster (3 GHz or faster recommended)
