font-family:'Microsoft YaHei'; font-size:24px”>一、通过配置文件实现以管理员身份运行程序
默认的配置如下：
<?xml version="1.0" encoding="utf-8"?><asmv1:assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1"
xmlns:asmv1="urn:schemas-microsoft-com:asm.v1" xmlns:asmv2="urn:schemas-microsoft-com:asm.v2"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <assemblyIdentity version="1.0.0.0" name="MyApplication.app"/> <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2"> <security> <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3"> <!-- UAC Manifest Options If you w本文来源[email protected]搞@^&代*@码2网ant to change the Windows User Account Control level replace the requestedExecutionLevel node with one of the following. <requestedExecutionLevel level="asInvoker" uiAccess="false" /> <requestedExecutionLevel level="requireAdministrator" uiAccess="false" /> <requestedExecutionLevel level="highestAvailable" uiAccess="false" /> If you want to utilize File and Registry Virtualization for backward compatibility then delete the requestedExecutionLevel node. --> <requestedExecutionLevel level="asInvoker" uiAccess="false" /> </requestedPrivileges> </security> </trustInfo></asmv1:assembly>
我们可以看到这个配置中有一个 requestedExecutionLevel 项，这个项用于配置当前应用请求的执行权限级别。这个项有3个值可供选择，如下表所示：
| Value | Description | Comment |
| asInvoker | The application runs with the same access token as the parent process. | Recommended for standard user applications. Do refractoring with internal elevation points, as per the guidance provided earlier in this document. |
| highestAvailable | The application runs with the highest privileges the current user can obtain. | Recommended for mixed-mode applications. Plan to refractor the application in a future release. |
| requireAdministrator | The application runs only for administrators and requires that the application be launched with the full access token of an administrator. | Recommended for administrator only applications. Internal elevation points are not needed. The application is already running elevated. |
asInvoker : 如果选这个，应用程序就是以当前的权限运行。
highestAvailable: 这个是以当前用户可以获得的最高权限运行。
requireAdministrator: 这个是仅以系统管理员权限运行。
默认情况下是 asInvoker。
highestAvailable 和 requireAdministrator 这两个选项都可以提示用户获取系统管理员权限。那么这两个选项的区别在哪里呢？
他们的区别在于，如果我们不是以管理员帐号登录，那么如果应用程序设置为 requireAdministrator ，那么应用程序就直接运行失败，无法启动。而如果设置为 highestAvailable,则应用程序可以运行成功，但是是以当前帐号的权限运行而不是系统管理员权限运行。如果我们希望程序在非管理员帐号登录时也可以运行（这种情况下应该某些功能受限制) ，那么建议采用 highestAvailable 来配置。
关于requestedExecutionLevel 设置的权威文档请参考下面链接：
Create and Embed an Application Manifest (UAC)
下面是修改后的配置文件：
<?xml version="1.0" encoding="utf-8"?><asmv1:assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1"
xmlns:asmv1="urn:schemas-microsoft-com:asm.v1" xmlns:asmv2="urn:schemas-microsoft-com:asm.v2"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <assemblyIdentity version="1.0.0.0" name="MyApplication.app"/> <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2"> <security> <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3"> <!-- UAC Manifest Options If you want to change the Windows User Account Control level replace the requestedExecutionLevel node with one of the following. <requestedExecutionLevel level="asInvoker" uiAccess="false" /> <requestedExecutionLevel level="requireAdministrator" uiAccess="false" /> <requestedExecutionLevel level="highestAvailable" uiAccess="false" /> If you want to utilize File and Registry Virtualization for backward compatibility then delete the requestedExecutionLevel node. --> <requestedExecutionLevel level="requireAdministrator" uiAccess="false" /> </requestedPrivileges> </security> </trustInfo></asmv1:assembly>
配置文件修改后，我们运行应用程序，就会首先弹出这样一个提示框,点 Yes 后，程序才可以继续运行，并且获得系统管理员的权限。
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转载请注明原文链接：详细介绍C#默认以管理员身份运行程序示例代码
转载请注明原文链接：详细介绍C#默认以管理员身份运行程序示例代码
