you can use the < BGSOUND > tag. When a user loads the page using IE, the sound file plays. Browsers that do not support the tag will ignore it, but they should not crash or hang. Here is an example to help you out.
the name of the sound file must be WAV, AU, or MIDI format though. So if i wanted to use a .wav file to play on my page and i had a sound file named say "welcome.wav" i could use this line:
< BGSOUND src="welcome.wav" >
email me if you need any further help or suggestions