Test it by using the Insert Address button to insert an address from your Address Book.

Word includes a default AddressLayout entry that you can't see or edit directly. The Insert Address button makes it easy to add an address to any document. Drag that command to any toolbar currently displayed in Word.

If you're going to add address information to documents frequently, having a button available will make it easier. Word 7.0 includes an Insert Address button on its Standard toolbar, but newer versions of Word don't add the button to the Toolbar or ribbon.