What Is It?
FrontPage Extensions are a set of server-side applications that enable you to incorporate the following advanced features without having to write the complex server-side programs typically required.

• Collaborate simultaneously with other users on the same Web site.
• Create a Web page directly on a Web server.
• Save directly to a Web server when using Office programs.
• Include these FrontPage components on your sites: link bars, top 10 lists, form handlers,
  discussions, full text searches, hit counters, and categories.

How Does It Work?

FrontPage Extensions are available through the use of FrontPage which is available from Microsoft.