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)
ESI Home Edition: 51 MB of free hard disk space.
TDT Home Edition : 50 MB of free hard disk space.
Suites Home Edition : 52 MB of free hard disk space.