Embed a wmv file via scripting by first starting the WMP plug-in and then using SetFileName() to set the file.

In this case, the src attribute is not needed.

Also, since the WMP Netscape 6.4 plug-in decides to download the wmv file itself even though the browser is already downloading the resource from the src attribute, not specifying a src attribute and using SetFileName() avoids this duplicate downloading. One could however write the embed element out with JS, but the scripting on the object might not be available due to bugs.