请不要为现有问题启动新线程.回到您的原始照片，并对愿意提供帮助的志愿者做出回应.

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Please do not start a new thread for an existing question. Go back to your original and respond to the volunteers who offered to help you.

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您不能. Installer类是.NET Framework的一部分.如果没有该框架，则说明您的Installer类根本没有运行.必须先安装.NET Framework，然后才能启动设置.MSI.

您必须从某种Setup.exe包装器中安装它.

You can''t. The Installer class is part of the .NET Framework. If the framework isn''t there, your Installer class isn''t running at all. The .NET Framework must be installed BEFORE your setup .MSI is launched.

You have to install it from a Setup.exe wrapper of some kind.