Here's one way... Put any command on a toolbar as a holding space (I tend to
use the FileOpen command, but it really can be any command at all). Then,
with the Customize dialog box still on screen, right click the added command
on the toolbar (it could be in a menu, as well), and choose Assign
Hyperlink - Open. Navigate to the desired file, click on it, then click OK.
Right-click again and change the name to something that tells the user what
file it will open.
Click Close in the Customize dialog when you're done.
Mind you... I get an annoying beep and warning when I open files this way.
But, that might be a function of Vista, since I don't recall the beep from
doing it in XP. But, it's been a while, so it might've beeped then, as well.
Herb Tyson MS MVP
Author of the Word 2007 Bible