VS2008不能播放SWF的问题

下面这段代码在VS2008 ASP.NET中不能正常播放，请各位同仁帮忙解决一下。
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" 
            codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,28,0" 
            width="700" height="60" align="middle">
    <param name="movie" value="guanfang.swf" />
    <param name="quality" value="high" />
    <param name="wmode" value="opaque" />
    <embed src="guanfang.swf" quality="high" wmode="opaque" pluginspage="http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash" type="application/x-shockwave-flash" width="700" height="60"></embed>
  </object>