I have the same problem. I use Aldelo POS, and i absolutely recall it worked when i swiped with notepad. Now when i try it just gives me %b or something, and nothing more.
I tried some settings from NCRConfigurator.exe i downloaded from NCR support site, and its still no good.
When i swipe in cmd prompt, i get the same or person, but nothing else.. its a bit crazy. Hope someone answers it.