However my initial
You would be better off with the FileSystemObject. I reckon.
To call this you just need, say: listfolders "c:\data"
Sub listfolders(startfolder)
''Reference Windows Script Host Object Model
''If you prefer, just Dim everything as Object
''and use CreateObject("Scripting.FileSystemObject")
Dim fs As New FileSystemObject
Dim fl1 As Folder
Dim fl2 As Folder
Set fl1 = fs.GetFolder(startfolder)
For Each fl2 In fl1.SubFolders
Debug.Print fl2.Path
listfolders fl2.Path
Next
End Sub