WinForms FAQ - COM

To get these events instead of using event delegates, you can create a sink for the events by
using the IConnectionPointContainer and IConnectionPoint interfaces of the Spreadsheet/Chart
component. Here are two articles that you can check:

HOWTO: Handle Office XP Spreadsheet Events in Visual C# .NET

HOWTO: Handle Office XP Chart Events in Visual C# .NET

Reply posted by Elan Zhou (MS) in microsoft.public.dotnet.framework.windowsforms.

The tool Regasm.exe can create a COM typelib and creates the necessary entries in the registry (the CLSID and Typelib ). If only a typelib is required, you can use tlbexp.exe. A com callable wrapper (CCW) will be created when a COM client (VB, VBS, JS, C++ etc.) creates an instance of a (managed) class.

John Godel tackles this question through a lengthy article on
C# Corner. In it, he discusses the basics (and more) of both .NET Interoperability and Migration.

.NET’s interoperability makes it easy to work with COM Capable Applications such as Word and Excel.

See Mike Gold’s article on C# Corner for a detailed discussion.

Imtiaz Alam discusses both early and late binding techniques in his article entitled Accessing COM+ component using C# on C# Corner.