The HFLI helps to record navigations based on the user interaction with the HostFront ActiveX dropped within Visual Studio.NET. The final goal of designing navigation is to generate a class that takes the burden of communicating with the host away from the developer. The HFLI supports generating classes in C# and VB.NET and it can generate a Web service (again in C# and VB.NET) that is ready to be published without adding a single line of code.