Occasionally you may find that a barcode does not scan correctly. While scanning into a text editor is usually helpful sometimes there could be hidden commands not visible .
A useful and free barcode troubleshooting tool from IDAutomation to help decode hidden commands is the Free Barcode Scanner ASCII String Decoder. This tool reveals hidden, non-printable ASCII characters and commands from keyboard emulation devices, such as USB Barcode Scanners. This tool is another option to see how a barcode is being read in addition to scanning the bar code into a notepad document.
Another useful free barcode verification tool that is designed to reveal the HRI (Human Readable Interpretation) from multiple GS1 fixed length element strings is the GS1 AI & Element String HRI Verification Tool