Win96 only programs the Radio Shack Models (Pro-96 and Pro-2096). I'm not sure about GRE because I've never owned one, but I'm sure there is some type of software out there for them. Uniden however comes with the software to program for free, as opposed to Win96 that you will pay 30-40 bucks for. The software I like and use for my Unidens is the ARC250 software, which is not freeware and will cost you. It really just depends on what unit you choose. Likewise, there are people that will swear by RS, and people who like the Unidens better. As a owner of two digital Unidens, and one digital RS, I can only really say that they each have their own significant features and I wouldnt put one before the other. They both produce a superb radio. Although, comparing apples to oranges is a whole different ballgame entirely. Do the research for yourself, and decide which suits your needs, hobby wise as well as financially, and get back to us here at RR. There are plenty of people here who are knowledgeable and willing to lend a hand or answer questions. Good Luck!!