Code 128 described in ISOIEC 15417 is good at encoding alpha-numeric data and numeric-only data. Code128 has three subsets: code128A code128B and code128C. Code 128A is used to encode uppercase alpha and control characters. Code 128B is used to encode both uppercase and lowercase alpha and numeric data. Code 128C is used to encode numeric-only data. Code 128 has many variations such as EAN 128 and ISBT 128. Since 2004 use of UCCEAN Code128 symbology is mandatory for printing barcode labels of Confirmation Services. USS Code128 also uses subset C to print barcode. Code128 barcode is able to encode the entire ASCII table. With Barcodesoft Keyboard Wedge Emulation program and a USB scanner you can emulate any special character input into your system. A check digit is always required by Code 128. When you use Barcodesoft Code128 font to print bar code please use our Encoder to calculate checksum for you. You can also find source code in VBA and C language of checksum calculation for different subsets of Code128: Code128A Code128B Code128C and UCCEAN-128. There are 28 code128 barcode fonts provided in the package as listed below marked by different trailing indicators. Barcodesoft code128 fonts have 7 different aspect ratios. Those code128 fonts with Hr in their names have human readable text printed underneath code128 barcode. There is also a crystal reports UFL DLL and a GUI encoder included in the package. There is also a sample in the package. You will find how easy it is to integrate bar coded code128 data with your own application. Barcodesoft code 128 Premium Packages include a 30-day money back guarantee. If you are dissatisfied with the product for any reason you will receive a full refund within 30 days.