K-Lite Codec Pack - K-Lite Codec Pack is a collection of codecs, DirectShow filters and tools.
Ant Media Server - Scalable, Ultra Low Latency & Adaptive WebRTC Streaming Ant Media Server provides Scalable Ultra-low latency (0.5 seconds) Adaptive Live Streaming with WebRTC. It supports RTMP, RTSP, Zixi, WebRTC, Adaptive Bitrate, HLS and MP4 recording.
CCCP: Combined Community Codec Pack - The CCCP: Combined Community Codec Pack is a codec pack specifically built for playing videos (including mkv).
Wowza - Streaming media server supporting all known streaming protocols.
AC3Filter - AC3Filter is a high quality free audio decoder and processor filter.
MistServer - MistServer is a lightweight, open-source multistandard multimedia server.