If in Delphi 2010 or XE Application.MainFormOnTaskbar is set to true then all secondary forms are always in front of the main window. It does not matter what the Popupmode o
i found a way to solve this issue.
on *.dpr
*.dpr
change Application.MainFormOnTaskbar := true; to Application.MainFormOnTaskbar := false;
Application.MainFormOnTaskbar := true;
Application.MainFormOnTaskbar := false;
this will allow you child form behind you main form.