How to create an .ASX Metafile in Windows
A Windows Media .asx metafile contains a type of Extensible Markup Language (XML) scripting that can only be interpreted by Windows Media Player. The most basic metafile contains a URL to multimedia content on a server, such as a Windows Media .asf file.
You need to perform the following steps in order to create a .asx metafile
Open a Notepad window, enter the following specifications for your .asx file
You replace AccountName and PortNumber with your information
Save the file in your computer:
Select the location where you want to save the file, then enter the file namewith the asx extension (.asx) and in “Save as Type” field Select “All Files”
Upload your .asx Widows Media file to your site via FTP using ASCII mode.