I found the WordBasic.FilePrintSetup function when I was searching for a way to change Word's printer without changing Windows' default printer.
Unfortunately I could not find any real documentation on FilePrintSetup, even the parameters I found with Google aren't officially documented. (Printer and DoNotSetAsSysDefault)
So do you know of any documentation? Or do you know additional parameters which are supported by FilePrintSetup? (I'm especially interested in setting the tray/paper bin)
EDIT: I found out that the paper bin can be selected with FilePageSetup, an equally undocumented function. So if you have information about this function, I'd appreciate them, too :)