Using Vista Business.
I am able to play an .mp3 through Express Scribe 4.10 but I'm still not able to play any .dss files. They are showing up 00:00 in duration, where as the .mp3 shows up initially as 00:00 in duration and then changes to about 22 minutes after being played. The .mp3 is less than 5 minutes long. I never paid attention to durations before, so I have no idea whether this is a change from how ES operates in XP.
I'm curious if you were able to get .dss files to play.
Installing the .dss codec didn't help.