We can provide an alternate GIF/PNG image, in case the user has no Adobe Flash installed and/or deactivated.
<object id="flashcontent"
classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
width="550px"
height="400px">
<param name="movie" value="myflashmovie.swf" />
<!--[if !IE]>-->
<object type="application/x-shockwave-flash"
data="myflashmovie.swf"
width="550px"
height="400px">
<!--<![endif]-->
<p>
Fallback or 'alternate' content goes here.
This content will only be visible if the SWF fails to load.
</p>
<!--[if !IE]>-->
</object>
<!--<![endif]-->
</object>
And also add this...
<script type="text/javascript">
swfobject.registerObject("flashcontent", "9", "(path to)expressinstall.swf");
</script>