DirectoryInfo.Root Property gets the root portion of a path.
Imports System
Imports System.IO
Public Class MoveToTest
Public Shared Sub Main()
Dim di As New DirectoryInfo("TempDir")
If di.Exists = False Then
di.Create()
End If
Dim dis As DirectoryInfo = di.CreateSubdirectory("SubDir")
Console.WriteLine("The root path of '{0}' is '{1}'", dis.Name, dis.Root)
di.Delete(True)
End Sub
End Class