so if you put an id="slideFrame" on the iframe of your embedded powerpoint and the wdEaa=1 as mentioned in the original question in the URL, your slide show will auto play to the settings on the slides... the iframe will then reload after 20,000 milliseconds (so in my example, it took 20 seconds for my slideshow to complete. ) its not ideal but it works for a kiosk type show where you are looping a slideshow over and over on a web page.