PHFTP (PHP HTTP FTP) is a simple and fast Web FTP application. You can upload, download and administer files on FTP servers without a local FTP client, even if you are behind firewalls and proxies. The only thing you need is a Web browser HTTP(S) connection. If you can browse the Internet at your workplace, you can now also establish a FTP connection to any FTP server your PHFTP installation server can connect to.
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.