Hola,
Trata con este codigo.
Public Class Form1
Private Sub ListBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles ListBox1.KeyPress
If e.KeyChar = Chr(27) Then
ListBox1.Visible = False
TextBox1.Focus()
End If
End Sub
End Class
Recuerdos,
Ab.