Override the form's ProcessDialogKey function. When you see an Enter or Escape key, process a Tab or Shift-Tab key instead. This lets the user navigate through fields by pressing Enter and Escape in addition to Tab and Shift-Tab.

' Convert Enter and Escape keys
' into Tab and Shift-Tab.
' Thanks to Luis XV (luisxvarg@hotmail.com).
Protected Overloads Overrides Function _
    ProcessDialogKey(ByVal keyData As Keys) As Boolean
    Select Case keyData
        Case Keys.Enter
            Return MyBase.ProcessDialogKey(Keys.Tab)
        Case Keys.Escape
            Return MyBase.ProcessDialogKey(Keys.Shift Or _
                Keys.Tab)
    End Select
    Return MyBase.ProcessDialogKey(keyData)
End Function