[Just One More ?]Open txt file Read Only

[FishGuy]

I am using this code to open a text file. is there a way to make it open read only so the users cannot modify it.

Private Sub InfoMen_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles InfoMen.Click
        Try
            'Opens Readme file using ms notepad
            Shell("notepad.exe " & "readme.txt")
        Catch ereadme As SystemException
            System.Windows.Forms.MessageBox.Show(ereadme.Message)
        End Try
    End Sub