Forgot to add that the initial unzip is not dependent on any particular unzip program. The only part that requires that is SongWright. I am guessing here but as far as I can make out, the DT Database program calls PKUNZIP to extract the necessary file from the .zip file that contains the tunes for SongWrite to play it, calls SongWright suppliying that file name as a parameter and later deletes the file.

Jon