Ca va Damien,
first of all, thank you for your effort to port Audirvana Plus to Windows, keep that good work 
I was unable to add a network share. I did the workaround and map the shared folder as a drive, the scanning happened (the status bar runs to end) but did not list any content (tried with wavs and DSDs and these are accessible from another application) it is still an issue after an update
Merci!