组合安装程序允许覆盖默认的安装位置，以及禁用不需要的组件。

The bundle installer allows you to override the default installation location and disable unwanted components. To do this.

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它还允许用户选择是否覆盖目标位置中已有的虚拟机。

It also allows users to choose if to overwrite when there is already a virtual machine at the destination location.

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这允许子类根据需要仅覆盖一些方法。

This allows subclasses to only override methods as needed.

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