alanjmcf 

32feet.NET is a shared-source project to make personal area networking technologies such as Bluetooth, Infrared (IrDA) and more, easily accessible from .NET code. Supports desktop, mobile or embedded systems.... More information

The library provides very broad client-side OBEX support, providing not just the ‘Put’ operation that most libraries and applications support, but also the complete set of operations: Connect, Put, Get,... More information