On the Source tab of the publishing point, click View
The Playlist dialog box appears.
Click Open an existing playlist.
In File name, type the path to the playlist file you
want to open or click Browse to select the file.
Click OK. The Windows Media Playlist Editor opens the
Existing playlist files can also be opened from
the Windows Media Playlist Editor menu by clicking File, and
then clicking Open. This opens the Windows Media
Browse dialog box in which you can locate the playlist
The Windows Media Playlist Editor is only
available in the Windows Media Services snap-in.