FormsCentral doesn't have any support for Bar Codes. You want to include bar codes in the form that the user could scan? I don't know much about bar code readers but if you are looking to have users scan a bar code it might be possible to add it as an image to the form but again, it is not something we explicitely support and there would be no feedback to the form from a bar code.
Thank you. We have decided that we probably won't need bar codes at this time.However, I will try to experiment with adding an image.