This is the most common type. Developers who integrated Fingerspot into a school or office often upload their middleware layer to GitHub. These repositories show how to send TCP commands (usually over port 4370 or 5005) to the device.
Build your own bridge using TCP/UDP sniffing. Some GitHub projects capture packets between the Fingerspot software and device, then forward to MQTT for IoT integration. fingerspot sdk github
For FlexCode SDK, ensure you run your application as an administrator and check that the necessary .dll files are in the System32 or SysWow64 folders. This is the most common type