> Please tell me how to use FIFO/Pipe file and use it to communicate with > the MPlayer at the run time. > > > > My OP is Windows Vista and the version of MPlayer is > "MPlayer-rtm-svn-2985" General information on named pipes in windows might be found here: http://en.wikipedia.org/wiki/Named_pipe#Named_pipes_in_Windows I think windows documentation might be more the place to look, not Mplayer. Greets, Kiste