vb.net - Transfer file to certain location , USB to be exact

Question

The question is, I want to do file transferring using VB

1- I already have drag and drop window which is user drag n drop their file over that window..and it depend to user whether to transfer the file to the USB drive or not..can it be done ?

2 - here my code for drag n drop window..

Private Sub ListBox4_DragEnter(ByVal sender As Object, _
                                  ByVal e As System.Windows.Forms.DragEventArgs) _
                                  Handles ListBox4.DragEnter
        If (e.Data.GetDataPresent(DataFormats.FileDrop)) Then
            e.Effect = DragDropEffects.All
        Else
            e.Effect = DragDropEffects.None
        End If
    End Sub

Private Sub ListBox4_DragDrop(ByVal sender As Object, _
                              ByVal e As System.Windows.Forms.DragEventArgs) _
                              Handles ListBox4.DragDrop
    Dim s() As String = e.Data.GetData("FileDrop", False)
    Dim i As Integer
    For i = 0 To s.Length - 1
        ListBox4.Items.Add(s(i))
    Next i
End Sub

3 - So what i want to do is,whatever file been dropping over there can be transfer to USB...with user click "Transfer"