Changing the message popup layout: Is it possible to change the layout of the popup that is shown by

Message ... -yesno

No, this is not possible. You can only specify the message text and message title of this popup, but you have two alternatives:

(1) With  InputAssistant: use the /O system popup, delete all existing elements and create your own ones

(2) With GuiXT Controls: display an HTML popup with "window.ShowModalDialog" (VBScript)