Click insert/embeded media icon, select the type "windows Media" and enter the url for the wma file, the size of the player.

Click advanced tab to select autoplay or NOT

Now we have the wmplayer size 200x100 pixel. Although the autostart is unchecked but tinymce actually put the value="false" which doesn't actually turn off the autostart. The correct one that we found to actually turn off the autostart is value="0", so we need to go to html mode to edit the code.

Cheers,