View step-by-step Mail Merge instructions here.

In order to use BarCodeWiz in Microsoft Word, open Word Setup.doc and click on Install BarCodeWiz Macros.
  

The following toolbar will be availabe in all of your Word documents.

Click on Main Menu to view your options. You may open the barcode properties window by clicking on the barcode.

Creating a barcode in Word is as simple as selecting the text you wish to encode...


...and clicking on Selection To Barcode on your toolbar.


In order to create multiple barcodes, enclose each piece of text with <> as below...


...and click on Convert All <> to create the barcodes. This method is also useful in creating labels and mail merge documents (see example)