Office's hyphenation parameters in docx format

[JeremyMarto]

Hello,
Various websites say that the .doc format has an option to set a hyphenation zone, where hyphenation won't be applied if the text ends close enough to the right-hand margin. However, this isn't available in .docx format.



So, what parameters does Word use to decide whether to hyphenate a word in .docx files?

Thanks in advance,
Jeremy