Serviio (for Windows) is a free, DLNA-compliant media server for the Windows platform. It currently supports several different devices, some of them being Sony Bravia television models, Panasonic TVs, Sony Blu-ray players which support media streaming, Samsung TVs and Blu-ray players, the Xbox 360 and Playstation 3 consoles and several other brands of modern television sets which hook up to your home network.
Servio can stream all kinds of different audio and video formats (both standard-def and hi-def), images and albums and supports real-time transcoded if required.
Servio keeps a library of your current media in its database from your hard drives or network drives and will also easily stream media from online services like RSS feeds and live audio/video streams from public broadcasters and other services you might be interested in viewing (such as Justin.TV/Twitch.TV).
To keep you informed about what you'd like to watch, Servio also provides metadata information directly on your television screen; it will also include visual representations of it via thumbnails, CD covers and DVD posters. These are viewable in the XBMC on the PS3. Servio also comes with full support for subtitle files.
The video formats that Servio currently supports are among: MPG1, MPG2, MPG4, TS, M2TS, AVI, WMV, ASF, MKV and FLV... among others.
If you're looking for an easy way to watch files not normally supported by your DLNA device, Servio can transcode and stream it.
From Petr Nejedly:Serviio is a free media server. Servio for Windows provides you the ability to stream your media files (music, video or images) to renderer devices (e.g. a TV set, Bluray player, games console or mobile phone) on your connected home network.Serviio for Windows 1.5
is licensed as Freeware
for the Windows operating system / platform without restrictions. Serviio for Windows is available to all software users as a free download (Freeware).
Serviio for Windows Virus and Malware Tests:
For security reasons, you should also check out the Serviio for Windows virus and malware test
that has been uploaded; additional Serviio for Windows screenshots may be available, too.