Mover un Application.MessageBox

[[movorack]]

prueba agregando los flags

Empezado por AboutDelphi.com

MB_SYSTEMMODAL flag ensures that the user must respond to the message box before continuing work in the window identified by the hWnd parameter.
MB_TOPMOST flag specifies that the message box should be placed above all non-topmost windows and should stay above them, even when the window is deactivated.
MB_SETFOREGROUND flag ensures that the message box becomes the foreground window.

link: http://delphi.about.com/od/windowssh...tive_modal.htm