.Net Remoting 排错笔记：An existing connection was forcibly closed by the remote host

错误提示：
An existing connection was forcibly closed by the remote host

场景：
客户端订阅服务器端事件后，未取消订阅退出或意外退出，当服务器端试图激发该事件时发生。

解决措施：
客户端在退出前必须取消事件订阅。对于意外退出，服务器端应作充分的异常处理。