HEX Barcode Printer Driver is a laser printer driver for HP PCL compatible
printers (eg HP IIP,IIIP,4 compatible).  This driver adds formated
barcodes to the printed page when it encounters text commands in the
printed document.  Supports all common barcode styles.
This permits just about any Windows software to print barcodes.  
It is really fast and it avoids using OLE and TTF.
Great for fast mail mergers.  Look at Readme.txt