SDR Sharp has been a nice little SDR program for use with the RTL-2832U Dongles. However due to some concerns about licensing and “unofficial” modified versions of the software floating around it is now a bit more difficult to get going with your RTL-2832U dongle. The RTL drivers are no longer in place by default, you have to install them manually. So, basically if you download the SDR# Dev versions, it will not work out of the box. You will need to go to the SDR Sharp webpage and install according to the directions provided there or just go here.