FSP is a UDP-based protocol for transferring files. It has many benefits over FTP, mainly for running anonymous archives. It is usable on lines with high packet loss ratio (70% WiFi), can go behind firewalls and unnoticed by port scans (because of UDP), does not overload networks when hosting ISOs or movies, share files on modem lines without eating all of the bandwidth, and keeps lamers away from your site (they don't know how to get to it). This project is active continuation of the FSP code base (abandoned 1996-2003).
STiB implements the client portion of the Microsoft BITS Upload Protocol, which is an extension to HTTP 1.1. BITS is a Windows service that manages file transfers to and from Web servers. BITS downloads use HTTP, but uploads use a proprietary extension. BITS is a highly used service, since it is responsible for downloading Windows patches and service packs.