Tres bien , voici donc mon code pour le module
Sub TousLesDossiers(LeDossier$, Idx As Long)
Dim fso As Object, Dossier As Object
Dim sousRep As Object, Flder As Object
Set fso = CreateObject("Scripting.FileSystemObject")
Set Dossier = fso.GetFolder(LeDossier)
'examen du dossier courant...