You could have downloaded C39Tools 5.5 from our software library for free. The actual developer of the software is Azalea Software. The program relates to Business Tools.
From the developer:
Print Code 39 barcodes in your favorite Windows or OS X application. Make Code 39 bar codes including Full ASCII Code 39 symbols using our barcode fonts and software.
C39Tools includes 27 different Code 39 fonts in TrueType and Type 1 PostScript format. This font collection makes symbols in a wide variety of shapes and sizes.
You may want to check out more software, such as BarCodeWiz Code 128 Barcode Fonts, FaxMail Network for Windows or EsInventory, which might be related to C39Tools.