The dictionary/thesaurus itself is stored in a somewhat standard Windows helpfile, which might be useful for people in other programs.
The package includes a couple of bonus programs, one is a bunch of sample fill-in-the-blanks letters which someone must have thought would be useful for some strange reason, the other is a "Visual Dictionary." This is a sort of interesting program which matches words to pictures for no apparent reason. It wants to install QuickTime 2.03, a six year old version of QT, which is probably not worth the trouble for most people. Amazon is wise to not make a big deal about these bonuses in the product listing.
This dictionary appears to be a repackage of something sold by Macmillan several years ago. The most recent copyright in the program is 1998 and the README is also dated 1998, on the box the date 2003 is printed. Probably Topics Entertainment bought this title from Macmillan but it's not listed on their website. Don't expect any meaningful support in the event you have problems with the program.
In the most important ways, this is pretty good. No word processor macros are included but the program can run in the background and respond to a certain key combination, providing dictionary and/or thesaurus info for the word under the mouse pointer. This doesn't work consistenty in my web browsers but it seems to work a little better in my word processors. The interface for the dictionary program is pretty good, the window size is not resizeable but boolean wildcard searches of the dictionary and thesaurus contents are available, which is a nice feature.