A lightweight RPC library based on XML and HTTP for C and C++

 XML-RPC is a quick-and-easy way to make procedure calls over the Internet.
 It converts the procedure call into an XML document, sends it to a remote
 server using HTTP, and gets back the response as XML.
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 This library provides a modular implementation of XML-RPC for C and C++.
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 xmlrpc-c homepage: http://xmlrpc-c.sourceforge.net/