Hide Application Task Bar Button from Windows Taskbar

// ******************************************************* //

// Hide Applicaton Taskbar Button for Delphi >=2007
// ******************************************************* //

// Menu->Project->View Source

program Project1;
uses
  Vcl.Forms,
  Unit1 in 'Unit1.pas' {Form1};
{$R *.res}
begin
  Application.Initialize;
  Application.MainFormOnTaskbar := False;   // Change True to False, Default is True
  Application.CreateForm(TForm1, Form1);
  Application.Run;
end.
// on Unit1.pas
procedure TForm1.FormActivate(Sender: TObject);
begin
  ShowWindow(Application.Handle, SW_HIDE);
end;
procedure TForm1.FormShow(Sender: TObject);
begin
  ShowWindow(Application.Handle, SW_HIDE);
end;