gSOAP and examples

SOAP is a protocol for exchanging XML based messages between computers using HTTP\HTTPS. SOAP is part of the web services protocol. Alex Nghiem has written an excellent article on the web service stack that comprises of XML, SOAP, WSDL and UDDI. You can read the article here.

gSOAP is the open source implementation of SOAP and it is based on C/C++.

There are some excellent examples on how to use gSOAP, can be found here.