FrontPage Server Extensions

FrontPage Server Extensions are a software technology that allows Microsoft FrontPage clients to communicate with web servers, and provide additional functionality intended for websites. Frequent security problems have marred the history of this Microsoft proprietary technology. It relies on HTTP protocol for communication, and CGI/POST for server-side processing.

Software IDE Microsoft Visual Studio 6.0 uses this technology for file synchronization purposes, and strongly depends on this technology for file management. Most .NET Microsoft products obsoleted this in favor of WebDAV, but Visual Studio 2005 and 2008 still publishes ClickOnce applications to websites with FrontPage Server Extensions.