将以下内容复制到一个以.reg结尾的注册表配置文件中，然后双击运行即可：

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT/*/shell/runas]
@="取得管理员权限"
"NoWorkingDirectory"=""
[HKEY_CLASSES_ROOT/*/shell/runas/command]
@="cmd.exe /c takeown /f /"%1/" && icacls /"%1/" /grant administrators:F"
"IsolatedCommand"="cmd.exe /c takeown /f /"%1/" && icacls /"%1/" /grant administrators:F"
[HKEY_CLASSES_ROOT/exefile/shell/runas2]
@="取得管理员权限"
"NoWorkingDirectory"=""
[HKEY_CLASSES_ROOT/exefile/shell/runas2/command]
@="cmd.exe /c takeown /f /"%1/" && icacls /"%1/" /grant administrators:F"
"IsolatedCommand"="cmd.exe /c takeown /f /"%1/" && icacls /"%1/" /grant administrators:F"

[HKEY_CLASSES_ROOT/Directory/shell/runas]
@="取得管理员权限"
"NoWorkingDirectory"=""
[HKEY_CLASSES_ROOT/Directory/shell/runas/command]
@="cmd.exe /c takeown /f /"%1/" /r /d y && icacls /"%1/" /grant administrators:F /t"
"IsolatedCommand"="cmd.exe /c takeown /f /"%1/" /r /d y && icacls /"%1/" /grant administrators:F /t"

转自http://www.gzjsk/Article/ShowArticle.asp?ArticleID=406