if you get class not registered error you need to register the DLL file. go to start>run>
then type in regsvr32
then find the tbarcode2.ocx in the rpro folder and drag it into the run box.
it will then give you regsvr32 {path to RPRO}tbarcode2.ocx
you also need to register the tbarcode3.ocx file
find the tbarcode3.ocx and drag it into the run box.
it will then give you regsvr32 {path to RPRO}tbarcode3.ocx
it will say it is registered then it will work.