Interface enables controls and components hosted in an application to persist their application settings in a manner largely transparent to the application 接口使应用程序中寄宿的控件和组件能以对应用程序基本透明的方式保存其应用程序设置。
At run time , whenever a caller in this case the hosted control accesses a library that exposes protected resources or a library that calls unmanaged code , the library makes a security demand , which causes the permissions of its callers to be checked for the appropriate permission grants 在运行时，每当调用方（在此情况下为寄宿的控件）访问公开受保护资源的库或调用非托管代码的库时，该库便会提出安全要求，它导致对调用方的权限进行检查，检查是否授予了适当的权限。
