RealNetworks, Inc.

…a media player developed by RealNetworks, Inc. One of the first webcasts, made possible by technology developed by Excite@Home Network and broadcast from George Washington University, occurred in 1999; the event featured U.S. Pres. Bill Clinton.

…by Progressive Networks (after 1997, RealNetworks, Inc.) that was popular in the 1990s and early 2000s but was supplanted by such formats as MP4.