I have made this UDF with the help of lod3n because i wanted a way to change the volume of output from my program without affecting the rest of the comuter's volume settings. when i found this it gave a ton more than just volume control. Hope you find it useful. It TOTALLY replaces any use of Sound.au3 that is needed in ur scripts. It uses a Windows Media Player Com Object to run everything. I gave an Example script along with it, but these functions are rather simple to use. Edit: (4.12)