VB.NET Arduino Interface
Arduino VB Lab is coded in VB.NET and allows users to make custom control interfaces for controlling the Arduino from the PC. Users can add gauges, buttons, images, etc, to an empty page and use the buttons to control something, or use the information being displayed. You are able to log all sensor data to an SQL Server database and select a date range on the graphs to view different time spans of data.
OW.NET -- 1-Wire API port from Java (and J#) to C#. Use the Dallas 1-Wire and iButton chips with standard C# using a serial adapter (also CF.net) or the TMEX drivers on the Windows platform. No J# distribution installation required.