在[MS-ASCMD]中，Settings命令的功能这样定义的：

The Settings command also sends device information to the server, implements the device password/personal identification number (PIN) recovery, and retrieves a list of the user's email addresses.

        理解：设置命令将设备信息发送到服务器，完成设备密码或者个人识别号码(PIN)的恢复，并接收用户的邮件地址列表。

        存在的疑问：这样做的意义在哪里？客户端不可能不知道自己的邮件地址！！

 

request<------>Response

RightsManagementInformation

          In Settings command requests, the RightsManagementInformation element is a container node that is used to request rights management information settings.

         In Settings command responses, the RightsManagementInformation element is a container node that contains rights management information settings retrieved from the server.

         If the RightsManagementInformation element is specified in the request, it MUST include the Get child element.

Settings流程

request<------>Response

       168   IRM_FeatureDisabled     The Information Rights Management feature is disabled