Ok will try to clarify, it happens that the scanners currently used in POS, have the software included and configured to only add prefixes and suffixes (such as Enter, Tab, etc..). In the case of PDT is different because it is like a old pc 8086 that executel the CALDERA DOS operating system and be charged on them the software with a .HEX file, this software with your equipment originally provided by the manufacturer (Motorola in this case), however, as is an obsolete item no longer support or sites to download such software is not commercial is proper scanner and this specific program can be up and over the scanner, not as a commercial like OpenOffice, or the like.
Regards