Would you recoomend this project?
C# Framework that implements the iRobot Roomba SCI spec. Also included is a diagnostic application named Roomba-Term that uses the framework. I invite you to use the Roomba-Term software as a tool & an example on how to program with the C# SCI
You can download file releases of C# RoombaSCI Framework project from List of release files
System RequirementsOperating System: Windows NT/2000, Windows XP
List of release files