Multimodal Communication DLL Development (C++)

I'm in need of a skilled developer capable of crafting a Windows DLL to facilitate communication over Bluetooth, Wifi, and USB. The DLL has to offer robust functionalities including:

- Data transfer
- Device discovery
- Connection management

Your proficiency in using C++ for DLL development will be an added advantage here. This project aims to build a DLL that not only supports these communication methods comprehensively, but also ensures smooth and efficient operation. The DLL should be designed keeping in view the complexities and requirements of data transfer, device discovery, and connection management protocols for each of the specified communication channels.

Essential Skills:
- Proficiency in C++
- Experience in DLL development
- Knowledge of Bluetooth, Wifi, and USB communication

The DLL should be designed in a way that can be integrated seamlessly, providing smooth operation in the long term. If you can take on this challenging yet rewarding project, I would love to hear from you.