Private Sub txtValue_KeyPress(KeyAscii As Integer)
    If KeyAscii > 96 And KeyAscii < 123 _
        Then KeyAscii = KeyAscii And 223
End Sub

1. What does this code do?
2. Is this a good idea?
3. Can you think of an alternative?
4. How could you improve the original code?
5. Now is this a good idea?