In this article I will explain how to play MP3 audio files in ASP.Net using Flash Music Player.
For this tutorial I am using the Dewplayer - Flash MP3 Player. You can download the source of Dewplayer using the following download link
Once downloaded you need to add the file dewplayer-vol.swf flash file to the project as shown in the screenshot below.

Once the Flash file is added to the project embed it in your page as shown below
<html xmlns="">
<head runat="server">
    <form id="form1" runat="server">
    <object type="application/x-shockwave-flash" data="dewplayer-vol.swf?mp3=mp3/test1.mp3"
        width="240" height="20" id="dewplayer">
        <param name="wmode" value="transparent" />
        <param name="movie" value="dewplayer-vol.swf?mp3=mp3/test1.mp3" />