My original task it was: Create a .net wrapper class for an existent native C++ code and expose to web page as like in Active X but in .Net and set up an environment in what are able to communicate the web page with native code and vice-verso. This task isn't finished yet, but I have found a solution for intercommunication between client side web page an a .net user control. In this article I will show how to place an C# user control on the IE web page (client side) and the user control how can communicate with web page and back. In this way can be built rich client side application in .Net.
In the IE can we embed the user control with