The minimum system requirements are:
Pentium II 450 (MHz) or higher.
64 MB RAM minimum (128 MB recommended).
Windows 98 SE (Second Edition), ME, 2000, XP, or NT with Service Pack 6.
Internet access recommended.
Works with MAC OS X using Microsoft Virtual PC (only with the purchased version)
Business & Finance Dictionary: 14 MB of free hard disk space.
Law Dictionary: 13 MB of free hard disk space.
IT Dictionary: 10 MB of free hard disk space.