I've just updated from Office 2000 Pro to Office 2010 Home/Student...
I've lost the option to include the address-barcode in Office 2010.... not that it's important, but I was used to having it print out while using 2000 Pro... searching Help hasn't revealed any source...

Thanks to all in advance,
Cajun

I found it!!
1) [While in the 'Word" document], go to:
2) Insert tab, then
3) Quick parts icon, then
4] Field [in the pulldown]
5) Bar code [in selection pulldown]
6) Enter the 'zip code' in the blank data field

Note: the bar code will display in your document replacing the zip code as typed in your Word document... if you want the bar code to display above/below the address, place it so before beginning steps 1 thru 6...