Similar to macros but more powerful, add-ins allow you to extend the built-in functionality of Microsoft Office FrontPage 2003. You can create COM add-ins in Microsoft Visual Basic 6.0 or Microsoft Visual C++ 6.0, or you can create managed add-ins in any of the languages that use the Microsoft .NET Framework, such as Microsoft Visual Basic .NET or Microsoft Visual C# .NET. When you create managed add-ins for FrontPage2003, you can use the tools, classes, and programming languages that are part of the Microsoft .NET Framework. The MSDN article "Creating Managed FrontPage Add-ins in C#" (see the Related Resources box on this page) shows you how to create a managed add-in for FrontPage in C# and assumes a general knowledge of the .NET Framework and a functional knowledge of the C# programming language. The article also explains what you need to know to create your own managed add-ins for FrontPage and provides extensive resources for more information.