Getting Help With Calling Word's Built-In Dialogs Using VBA
http://word.mvps.org/FAQs/MacrosVBA/WordDlgHelp.htm

Rado, Dave
Word MVP Site, The
2005

Abstract:

There are two Help topics in Word VBA Help that are required reading to get you started with built-in dialogs: 'Displaying built-in Word dialog boxes' and 'Built-in dialog box argument lists'. Unfortunately, in the latter article, Microsoft listed the arguments you can use but forgot to mention what the arguments mean or what values they can take! Fortunately, the dialog box arguments are almost identical to the arguments of the commands of WordBasic, so if you know one, you can work out the other. Therefore, the WordBasic Help file is at present by far the best resource for programmers wanting to use the dialogs. It is an absolute must-have.