Greetings, The following code works correctly in IE6 (XP Professional, WMP9) The player appears, and the movie auto-starts. However, IE8 gives me a box with a red X in it, and asks if I want to download the Windows Media 6.4 Player Shim from Microsoft. I thought later versions of IE were supposed to be backward compatible with the 6.4 player classID. ?? Okay, so I take the above code and change the classID to 6BF52A52-394A-11D3-B153-00C04F79FAA6, the classID for player 7 and later. Now, IE8 shows the player, but doesn't load the movie. So I really have three questions: 1. Why does IE8 have to load a shim for the 6.4 classID? 2. Why won't it play the movie when I give it the 7+ classID? 3. Once #2 is solved -- must I use JavaScript to test for every possible version of IE, substituting the correct classID, in order to reliably embed this movie?