DBI has several .NET controls that were built in C# for Windows Forms.
According to Microsoft, you can use the RCW (Routine Callable Wrapper) that is provided with your .NET framework to expose the methods, events and properties of the ActiveX components. We have many customers using our ActiveX components in this fashion today. Please download/install the demo version of the
product(s) you are interested in to see how they fit into your application.