((JavascriptExecutor)this.driver1).executeScript("alert('Test')");
this.driver.switchTo().alert().accept();
Chrome1 = new ChromeDriver(caps_Chrome1);
2. At this step, I use AutoIT to get Windows Handle for this window, and store it into a temp.xml file
AutoItX autoIT_Chrome1 = new AutoItX();autoIT_Chrome1.winGetHandle("data:, - Google Chrome")
3. For other Chrome Driver (chrome2, chrome3), repeat step 1, 2
The result of temp.xml as below
Runtime.getRuntime().exec(Utils.ConvertToAbsolutePath("Files\\AutoITScripts\\Activate.exe") + " " + sWindowHandle);
Many thanks all and sorry for late response.