FLV Player allows you to play flash video file . The play Icon will play and pause the currently playing flash video file . The Sound Icon will change the volume or mute . Double Click on the player will Toggle on/off the full screen mode . Clicking this item Open File will show the standard open dialog to open the flash video file that you want to play ,if you double click a flv file in the windows explorer, it will be play with SC flv player.