如何以提升的权限从WiX运行ngen？

Question

我正在尝试使用this article在我的安装程序中包含ngen。我希望在安装过程中(与priority=0)同步运行ngen，但它需要管理员权限才能运行。因此，现在我在日志中有以下消息：

MSI (s) (74:2C) [18:30:14:310]: Invoking remote custom action. DLL: C:\windows\Installer\MSI60B0.tmp, Entrypoint: ExecNetFx
ExecNetFx:  Microsoft (R) CLR Native Image Generator - Version 4.0.30319.1
ExecNetFx:  Copyright (c) Microsoft Corporation.  All rights reserved.
ExecNetFx:  Installing assembly C:\myapp\myapp.exe
ExecNetFx:  Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))
ExecNetFx:  Administrator permissions are needed to use the selected options.  Use an administrator command prompt to complete these tasks.
ExecNetFx:  Error 0xffffffff: Command line returned an error.
ExecNetFx:  failed to execute Ngen command (with error 0xffffffff): C:\windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe install "C:\myapp\myapp.exe", continuing anyway
ExecNetFx:  Microsoft (R) CLR Native Image Generator - Version 4.0.30319.1
ExecNetFx:  Copyright (c) Microsoft Corporation.  All rights reserved.
ExecNetFx:  Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))
ExecNetFx:  Administrator permissions are needed to use the selected options.  Use an administrator command prompt to complete these tasks.
ExecNetFx:  Error 0xffffffff: Command line returned an error.
ExecNetFx:  failed to execute Ngen command (with error 0xffffffff): C:\windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe update /queue, continuing anyway

当ngen正在启动时，有没有简单的方法来询问用户管理权限(使用标准的UAC提示符)？如果用户按下"No"，我想在没有ngen的情况下继续。如果是-运行ngen并预编译我的应用程序。有什么想法吗？

谢谢。

Answer 1

WiX已经运行了提升的NGen自定义操作(Execute="deferred“Impersonate="no")。您的.msi包必须针对每台机器才能运行它们。