Well, I have started testing the freeware version of Switch and have come to realize a couple of things:
1.) It seems the .DSS converter plugin must be downloaded the first time you try to convert or play a DSS file. I don't know if it comes with the Switch Plus version, but in the freeware version, the dialog box for the download of the plugin was hidden behind a couple other windows on the desktop, so the first time I didn't even know that it was trying to download something.
2.) While the freeware version isn't big on progress reports on a batch job, when you are looking at the GUI window, if you have a red 'X' on the file, it hasn't been converted. When you see the green checkmark, then you can look in your OutFolder and find the converted file.
Hope that helps.
/bk