...I needed this and thought at first that everyone and their brother had already written a simple program to output a sound using the default sound device on a windows 32 or 64 computer by typing tone plus frequency and duration (in milliseconds) Tone 1000 2000 (1khz at 2 seconds) great for server farms. This is a spin-off of a project of controlling a inteliport III. I got lazy and will just use mp3 files to do the job. This program is written using windows API calls and works on 32/64 bit systems (apple macbook pro using win 7 32 bit pro and also a 64 bit hp computer running win 7 ultimate 64. ...