Use ListBox content to Delete files in directory and all subfolders

[MaxDes]

VB.net 2008 express
This is what I have so far, and it loads a list of files from a text file. Now I need to be able to delete them all from a certain drive and all sub folders in it. For instance I push the delete button and it goes through the entire list and deletes all the files in it from the designated drive and all it's sub folders.
Any help is appreciated

Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents ListBox2 As System.Windows.Forms.ListBox
    Friend WithEvents deletebutton As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.ListBox2 = New System.Windows.Forms.ListBox
        Me.Button2 = New System.Windows.Forms.Button
        Me.deletebutton = New System.Windows.Forms.Button
        Me.SuspendLayout()
        '
        'ListBox2
        '
        Me.ListBox2.Location = New System.Drawing.Point(12, 12)
        Me.ListBox2.Name = "ListBox2"
        Me.ListBox2.Size = New System.Drawing.Size(296, 186)
        Me.ListBox2.TabIndex = 4
        '
        'Button2
        '
        Me.Button2.Location = New System.Drawing.Point(12, 204)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(110, 24)
        Me.Button2.TabIndex = 5
        Me.Button2.Text = "Load C:\Delete.txt"
        '
        'deletebutton
        '
        Me.deletebutton.Location = New System.Drawing.Point(13, 246)
        Me.deletebutton.Name = "deletebutton"
        Me.deletebutton.Size = New System.Drawing.Size(109, 23)
        Me.deletebutton.TabIndex = 6
        Me.deletebutton.Text = "Delete Files"
        Me.deletebutton.UseVisualStyleBackColor = True
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(320, 293)
        Me.Controls.Add(Me.deletebutton)
        Me.Controls.Add(Me.Button2)
        Me.Controls.Add(Me.ListBox2)
        Me.Name = "Form1"
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

#End Region
    Dim w As IO.StreamWriter
    Dim r As IO.StreamReader

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        r = New IO.StreamReader("c:\delete.txt")
        While (r.Peek() > -1)
            ListBox2.Items.Add(r.ReadLine)
        End While
        r.Close()
    End Sub

    Private Sub deletebutton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles deletebutton.Click

    End Sub
End Class