Lancer une application au démarrage de Windows

procedure SetAutoStart(AppName, AppTitle: string; register: boolean);
const
RegKey = 'SoftwareMicrosoftWindowsCurrentVersionRun';
var
Registry: TRegistry;
begin
Registry := TRegistry.Create;
try
Registry.RootKey := HKEY_LOCAL_MACHINE;
if Registry.OpenKey(RegKey, False) then
begin
if register = false then
Registry.DeleteValue(AppTitle)
else
Registry.WriteString(AppTitle, AppName);
end;
finally
Registry.Free;
end;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
SetAutoStart('Your Application Title',ParamStr(0),false);
end;