可以说，这里是如何去做错误的方式：IIS运行在一个无形的虚拟窗口——这样的服务。

That said, here is how to do it the wrong way: IIS runs on an invisible virtual window — it's a service.

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当您选择一个应用程序模板时，这个工具会自动生成一个应用程序代表（WCA000AppDelegate.m）和虚拟窗口（MainWindows.xib 和 SecondWindow.xib）。

When you select an application template, the tool automatically generates an application delegate (WCA000AppDelegate.m) and dummy windows (MainWindows.xib and SecondWindow.xib).

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一旦进入虚拟课程，他们就可以进入聊天框，一个有互动功能的白板还有一个视频窗口，通过这个视频窗口他们可以看到教师的现场授课。

Once inside the virtual classroom, they have access to a chat feature, an interactive white board and a video window where they can see and hear the tutor in live video and audio.

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