System IO VB.Net by API

Imports System.IO
Module Module1
    Sub Main()
        Try
            If (Directory.Exists("D:\test01")) Then
                Console.WriteLine("D:\test01 already exists")
            Else
                Directory.CreateDirectory("C:\test01")
            End If
            Console.WriteLine("Directories created")
        Catch E As Exception
            Console.WriteLine("Error creating directory")
            Console.WriteLine("Error: {0}", E.Message)
        End Try
    End Sub
End Module