Web Services Dynamic Discovery (WS-Discovery) is a technical specification that defines a multicast discovery protocol to locate services on a local network. It operates over TCP and UDP port 3702 and uses IP multicast address 184.108.40.206 or FF02::C. As the name suggests, the actual communication between nodes is done using web services standards, notably SOAP-over-UDP.
Various components in Microsoft's Windows Vista operating system use WS-Discovery, e.g. "People near me". The component WSDMON in Windows 7 and later uses WS-Discovery to automatically discover WSD-enabled network printers, which show in Network in Windows Explorer, and can be installed by double-clicking on them. In Windows 8 or later installation is automatic. WS-Discovery is enabled by default in networked HP printers since 2008. WS-Discovery is an integral part of Windows Rally technologies and Devices Profile for Web Services.
- "WSD port monitor for Printers and TCP/IP ports, what is the difference?". 21 March 2011. Retrieved 2014-04-11.
- "WSDMON Port Monitor". Retrieved 2014-04-11.
- "Web Services Dynamic Discovery (WS-Discovery) Version 1.1". Retrieved 2012-01-06.
- Where to find Web Services on the Web
- WS-Discovery specification version 1.0 (2005/04)
- WS-Discovery specification version 1.1 Draft (2008/09)
- WS-Discovery specification version 1.1 Final (2009/01)