The SMS Mac software collection consists of several components. Each component is independent from the other and each component has different requirements.

Note that SMS Mac and SMS Vista run on Mac OS X and Microsoft Windows.

SMS Mac software runs native on PowerPC and Intel Macs.

The requirements of each component are:

• Dashboard Widget : Mac OS X 10.4 and up
• Sidebar Gadget: Windows Vista
• Address Book Plug-in : Mac OS X 10.3 and up
• Scripting Application : Mac OS X 10.3 and up
• Yahoo! Widget : Mac OS X 10.3 and up or
• Yahoo! Widget : Windows Vista/XP/2000