Windows 7 上 ProgramData 中的 System.IO.File.InternalCopy 出现 UnauthorizedAccessException
我在 ProgramData 中安装了一个程序。我使用 UAB 2.1 来更新应用程序，但它失败了，因为访问路径被拒绝（文本文件没问题，所以我认为 UAC 有问题）。如何在 ProgramData/MyAppFolder 中获得覆盖权限或显示一个对话框以通知用户为更新程序授予覆盖权限。
非常感谢。
更新
我读过一篇文章 链接。它说您需要创建目录并在安装时设置所需的 ACL。我应该将安装文件夹更改为 LocalAppData 还是尝试根据文章在安装时设置 ACL。
I have a program installed in ProgramData. I use UAB 2.1 to updating app but it's failed because accessing to the path is denied (OK with text files so I think there's problem with UAC). How can I get overwriting rights in ProgramData/MyAppFolder or display a dialog to notice user give overwriting rights for updater.
Many thanks in advance.
Update
I've read an article at Link. It said that You'll want to create your directory and set the ACLs you need at install time. Should I change installation folder to LocalAppData or try to set ACLs at install time according the article.
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自我更新的应用程序在 UAC 下会遇到困难。最好的选择是将执行更新的代码分区到单独的 exe 中。在该 exe 上放置一个包含 requireAdministrator 的清单。在主应用程序中，保留检查更新的代码，并在需要更新时启用按钮或菜单项。在该按钮或菜单项上放置一个防护罩，并让它使用 ShellExecute 启动单独的 exe。用户将收到一个 UAC 同意对话框，这是他们所期待的，因为有防护罩。单独的 exe，因为它是提升的，将能够写入程序文件和其他受保护的区域。
Apps that update themselves have a hard time under UAC. Your best bet is to partition the code that does the update into a separate exe. Put a manifest with requireAdministrator on that exe. In the main app, leave the code that checks for updates, and have it enable a button or menu item when an update is needed. Put a shield on that button or menu item, and have it launch the separate exe with ShellExecute. The user will get a UAC consent dialog, which they will be expecting because of the shield. The separate exe, because it's elevated, will be able to write to Program Files and other protected areas.