This is a version of the XML-RPC-C API library, which allows you to make XML-RPC calls via the 'net. The XML-RPC-C website states that "XML-RPC is a quick-and-easy way to make procedure calls over the Internet. It converts the procedure call into XML document, sends it to a remote server using HTTP, and gets back the response as XML. This library provides a modular implementation of XML-RPC for C and C++." The versions here have been set up or compiled for RISC OS.