The barcode is based on information in your address. If you bookmark just
the ZIP code, it will be based on that, but it is better to base the barcode
on the entire address (as it then reads the street address and incorporates
that). Select the entire address and insert a bookmark, then type the name
of that bookmark after the \b switch in your BARCODE field (or select it in
the Insert Field dialog).

--
Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
Word MVP FAQ site: http://word.mvps.org
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"ohcrafter" wrote in message
...
I'm using Office 2000 Word and want to add the postnet barcode in the
address
block of the letter to show through a window envelope. I don't understand
about using a "bookmark" that came up in the help.