Hello, i have already developed some software for Finger Print readers. I can suggest to use these models of readers: Identix BIOTOUCH 200 or 500 models, DigitalPersona U.are.U 4000 models. These are cheap and good available models. My software would work on Windows Desktop or Windows Servers. If you need it used in Browsers, than you would need a Browser plugin, which is not part of this offer. Regards Sahin Tepe