Another Avenue - ZXing Online Decoder - IF you have a good net connection, you can use zxing.org/w/decode.jspx and upload an image you snapped with the camera - it does not seem reliable, however, and I don't think it will be with the camera quality. The source code for this is available, however (I believe it is Java) on their website if you want to have a look.

I am not affiliated with this in any way - just found it while googling for barcode software.

For me, barcode software is cool but not really useful, but I will play with whatever you all come up with!

Patrick