编辑注册表中的环境变量 [英] Edit environment variable in registry

问题描述

我想从注册表中读取所有环境变量，并在visual studio 2010 express中使用c＃设置一个新值。

因此，我读到本地的子项机器：

  SYSTEM\CurrentControlSet\Control\Session Manager\Environment 
  

，其值为 Path 。

阅读路径值：

  reg = Registry.LocalMachine.OpenSubKey（SUB_KEY_PATH，true ）; 
  

我收到一个例外，我没有这个权限。

因此，我在清单中设置值：

 < requestedExecutionLevel level =requireAdministrator uiAccess =false/> 
  

但是现在我无法编译我的项目，因为ClickOnce不支持它。
如何编译​​具有requireAdministrator的安全级别的项目？
我发现一个解决方案是在没有requireAdministrator级别的情况下进行编译，之后我更改了myproject.exe.manifest中的值。我看到对了，我总是必须将这两个文件（manifest& exe-file）复制到另一台计算机才能正确运行？可以通过编译将信息放在exe文件中？

解决方案

如果要在安装过程中提升，那么可以不要使用ClickOnce。这是一个设计选择。您的选项是：

1. 使用标准的安装包，可以显示UAC标高对话框。


2. 修改用户的 PATH 环境而不是系统范围的变量。此选项与ClickOnce的每用户理念完全兼容。

I want to read all environment variable from the registry and set a new value for it with c# in visual studio 2010 express.

Thus I read the subkey of local machine:

SYSTEM\CurrentControlSet\Control\Session Manager\Environment

and there the value of Path.
While reading the Path value:

reg = Registry.LocalMachine.OpenSubKey(SUB_KEY_PATH, true);

I get an exception, that i don't have the permission for it.

Therefore I set the value in the manifest:

<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />

But now I can’t compile my project, because ClickOnce doesn’t support it. How can I compile a project with security level of requireAdministrator? One solution I found is to compile it without the requireAdministrator level and afterwards I changed the value in myproject.exe.manifest. Did i see it right, that I always have to copy both files (manifest & exe-file) to another computer to run it correctly? Is it possible to put the information in the exe-file by compiling?

解决方案

If you want to elevate during installation then you can't use ClickOnce. That's a design choice. Your options therefore are:

1. Use a standard install package which will allow you to show the UAC elevation dialog.
2. Modify the user's PATH environment rather than the system-wide variable. This option is perfectly compatible with the per-user philosophy of ClickOnce.

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