Hi, for system testing purposes, i need an audio driver that is simply transmitting a stream or reading out a file (without any further stream computations to begin with). I think this is being done easily using just a couple of lines. Do i need to work into WDK Docs or is there an easy solution ? Thanks X. Rubiales _________________________________________________________________ Téléphonez gratuitement à tous vos proches avec Windows Live Messenger ! Téléchargez-le maintenant ! http://www.windowslive.fr/messenger/1.asp