You needed to post that in VB.net forum instead.
Anyway, to get special folder path you can use Environment class and wouldn't have to hardcode anything:
Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Debug.Print(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments))
Debug.Print(Environment.GetFolderPath(Environment.SpecialFolder.Desktop))
Debug.Print(Environment.GetFolderPath(Environment.SpecialFolder.InternetCache))
Debug.Print(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData))
End Sub