To assign sounds to program events
Open Sounds and Audio Devices in Control Panel.
On the Sounds tab, in the Program events list, click the program event to which you want to assign a sound.
In the Sounds box, click the sound you want to play whenever the selected program event occurs.
If the sound you want to use is not listed, click Browse to search for it.
To open Sounds and Audio Devices, click Start, click Control Panel, click Sounds, Speech, and Audio Devices, and then click Sounds and Audio Devices.
To test a sound, in the Sounds box, click the sound you want to test, and then click Play sound . To stop the sound, click Stop .