Problem with the Message Board K8101, programming in C#

Hi there,
the board has been assembled and connected to my computer with Windows 10. It works perfectly, but the demo-software is only delivered in VB. I have tried to write a new application in C#, but although I have added the reference (K8101) to the project and I have added the line “using Velleman.Kits;” als the first line in the program, the compiler complains as soon as I write the first of the commands (Connect() ). It says: "The name ‘Connect’ is not contained in the current contect.
What can I do?
Thanks for any help.
Wolfram Menzel