Can't Get an embedded video to loop

Hello, I'm new on here and I hope somebody can help me. I'm using HTML4 to create a web site which I want to include a short slide show which I've created as a .wmv file. I've put the following in:

<embed src="evertrex001_0001.wmv" autostart="true" loop="true" width="600" height="400"
vspace="10" hspace="20" align-"left" />
<noembed>

<a href="evertrex001_0001.wmv">
<img src="evertrex001_0001.jpg" border="0" align="left" width="600" height="400" vspace="10" hspace="20"/>
</a>
</noembed>

The slideshow runs ok but does not loop back to the beginning. Does anyone know what's wrong?

Thanks