procedure TMainForm.FormShow(Sender: TObject); var hwndOwner: HWnd; begin hwndOwner := GetWindow(Handle, GW_OWNER); ShowWindow(hwndOwner, SW_HIDE); // For Windows 2000, additionally call the ShowWindowAsync function: ShowWindowAsync(hwndOwner, SW_HIDE); ShowWindowAsync(Self.Handle, SW_HIDE); end; { Prevent the form from reappearing on the Taskbar after minimizing it: } private procedure WMSysCommand(var msg: TWMSysCommand); message WM_SysCommand; {....} implementation procedure TMainForm.WMSysCommand(var msg: TWMSysCommand); begin if msg.CmdType and $FFF0 = SC_MINIMIZE then hide else inherited; end;