I was frustrated at all the expense and the hassles of all the font issues in dealing with barcodes across different platforms - so I came up with a way that you can integrate barcodes into any solution (make the download file a module in Servoy 2.2+).
This requires ZERO FONTS, is completely cross platform, and is extensible to ANY barcode schema you want. I've included examples for POSTNET and CODE 39 - but you can add as many others as you want.
http://www.servoymagazine.com or
direct link: http://www.servoymagazine.com/home/2005/03/tip_barcodes_ba.html
ENJOY!