KoolPlaya will play any video file if you have the appropriate codecs installed and has lots of features. It offers you all of the following:

• Free zoom + fullscreen
• Customizeable interface
• Screenshot function
• Import extra audiotrack
• Easy internet-update (klick help -> update)
• Loop + partial loop
• Multi language support
• No installation requiered
• 159.5 kb small & only one file