Только что проверил, помогло, ок?
Код:
procedure TForm1.FormActivate(Sender: TObject);
begin
ShowWindow(Application.Handle, SW_HIDE);
SetWindowLong(Application.Handle, GWL_EXSTYLE,
GetWindowLong(Application.Handle, GWL_EXSTYLE) or WS_EX_TOOLWINDOW);
end;
Код:
begin
Application.Initialize;
Application.MainFormOnTaskbar := False;
Application.CreateForm(TForm1, Form1);
Application.Run;
end.