1)   COMM-DRV/Lib.Net Professional Edition 20.00
Professional serial communication component / library for C#, VB.Net, managed C/C++, and any other .Net application running under Windows. Includes Zmodem, Xmodem, & Ymodem file transfer protocols.

 2)   TaskDialog.NET 1.1
Add Vista-style Task Dialog to .NET applications on any platform supported by the .NET Framework. The Task Dialog is a versatile alternative to the old message box which has been used to create dialog boxes that are difficult to understand and use.