1) 保护参数配置

2) 注册表访问

 

using System.Security.Permissions;[RegistryPermissionAttribute(SecurityAction.PermitOnly, All = @"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Jet\4.0\Engines\Jet 4.0")]private static void UpdateOS32RegisterItem(){ 	using (RegistryKey currentKey = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Jet\4.0\Engines\Jet 4.0", true))	{		currentKey.SetValue("MaxLocksPerFile", 0xF4240, RegistryValueKind.DWord);		currentKey.Close();	}}

该种写法混淆后会出现如下的错误:

解决方法:

添加 应用程序清单文件，在其中加入

修改代码，如下：

private static void UpdateOS32RegisterItem() {	System.Security.Principal.WindowsIdentity identity = System.Security.Principal.WindowsIdentity.GetCurrent();	System.Security.Principal.WindowsPrincipal principal = new System.Security.Principal.WindowsPrincipal( identity );	if (principal.IsInRole(System.Security.Principal.WindowsBuiltInRole.Administrator))	{		using (RegistryKey currentKey = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Jet\4.0\Engines\Jet 4.0", true))		{			currentKey.SetValue("MaxLocksPerFile", 0xF4240, RegistryValueKind.DWord);			currentKey.Close();		}	} }