The gSOAP Toolkit software (version 2.8.22) is a development toolkit that enables developers to build efficient and secure web services and applications. The software features include support for multiple protocols such as HTTP, SMTP, and SOAP, as well as support for both C and C++ programming languages. Additionally, it provides features for XML data handling and integration with popular development environments such as Visual Studio and Eclipse. Finally, the gSOAP Toolkit software also includes support for popular operating systems, including Windows, Linux, and macOS.