Alright. The “forward slash” trick worked great.
Now if I open up the slug in windows explorer, there are two iTunes Music Library.xml files, the one sitting in the iTunes folder (underneath all of my music files) and one sitting one level above in the Music Library folder. It looks to me that they update together (sort of like a windows shortcut but better).
I’ll have Firefly perform a full scan and see how that works… More later.