PotPlayer is an extremely light-weight multimedia player for Windows. It feels like the KMPlayer, but is in active development. Supports almost every available video formats out there. PotPlayer contains internal codecs and there is no need to install codecs manually. Other key features include WebCam/Analog/Digital TV devices support, gapless video playback, DXVA, live broadcasting.
Distinctive features of the player is a high quality playback, support for all modern video and audio formats and a built DXVA video codecs. A wide range of subtitles are supported and you are also able to capture audio, video, and screenshots. A comprehensive video and audio player, that also supports TV channels, subtitles and skins.
It's been described on the Internet as The KMPlayer redux, and it pretty much is. Both 32-bit and 64-bit versions of Windows are supported.