See instructions for Mail Merge in Word XP 2002 and 2003 here

Go to Tools -> Mail Merge... and click on Create -> Mailing Labels.

Click on New Main Document to create labels in a new Word file.

Click on Get Data -> Open Data Source....

We will be using an Excel spreadsheet for our barcode data.

Select the Excel file Mail Merge Data.xls from:

C:\Program Files\BarCodeWiz ActiveX\Mail Merge Example\Mail Merge Data.xls

You may have to select MS Excel Worksheets (*.xls) from the Files of type pull-down before you will be able to see the file.

The location of the file may be different if you installed BarCodeWiz Barcode ActiveX Control in a different directory.

Click OK and then Set Up Main Document in the next two dialog windows.

Next, select the label type. We will be using Avery 5163 - Shipping, which is 2 x 4 inches, 10 labels per page. If your printer is laser or an ink jet, make sure you select Auto Select from the Tray pull-down. Next, click on OK.

Next, let's set up our label. Click on Insert Merge Field -> Barcode.

You may also insert other fields or type additional text inside this box.

This is very important!

Enclose any field you wish to convert into a barcode within square brackets, as below. Click on OK to continue.

Click on Merge... and Merge again.

This is what our new document should look like.

If you wish to center your labels, simply press Ctrl+A to Select All, and click on the Center button on your Word toolbar.

Click on Options on your toolbar, and click on the barcode image to change any properties, such as barcode type, height, color, text fonts, position, and more.

Once you have chosen the desired barcode properties, close Options and click on Convert All. This will generate barcodes as shown below. You may save the newly created document and freely distribute it to anyone (as long as you own a license for BarCodeWiz ActiveX). Because the barcodes are stored as metafiles (images) within the document, your recipients need not have the program installed on their machines.