' Before running, create a new project or open an existing project.
Sub ListProj()
Dim proj As Project = DTE.ActiveSolutionProjects(0)
Dim win As Window = _
DTE.Windows.Item(Constants.vsWindowKindCommandWindow)
ListProjAux(proj.ProjectItems(), 0)
End Sub
Sub ListProjAux(ByVal projitems As ProjectItems, ByVal Level As Integer)
Dim projitem As ProjectItem
For Each projitem In projitems
MsgBox("Project item: " & projitem.Name, Level)
' Recurse if the project item has sub-items...
Dim projitems2 As ProjectItems
projitems2 = projitem.ProjectItems
Dim notsubcoll As Boolean = projitems2 Is Nothing
If Not notsubcoll Then
ListProjAux(projitems2, Level + 1)
End If
Next
End Sub