This is similar in function to the mailto URI scheme, which creates a new e-mail message using the system's default mail program.
As of December 14, 2012, all public chat rooms on Yahoo Messenger have been shut down as part of a series of features being changed/added/deleted.
As of March 27, 2016, the only supported clients are the Android, i OS and web browser clients.
Yahoo now no longer provides plugin development SDK. Messenger users could listen to free and paid Internet radio services, using the defunct Yahoo! Yahoo released a preview version of Yahoo Messenger for Windows Vista.
Music Radio plug-in from within the messenger window. It had been designed to exploit the new design elements of Vista's Windows Presentation Foundation and introduced a new user interface and features.
exampleuser" On October 13, 2005, Yahoo and Microsoft announced plans to introduce interoperability between their two messengers, creating the second-largest real-time communications service userbase worldwide: 40 percent of all users (AIM currently holds 56 percent).