OSE的消息传递机制采用一种称为OSE Link Handler(OSE链接处理器)的程序，在带有多个节点的系统(其中每个节点都拥有自己的操作系统)中透明地工作。OSE Link Handler可同时支持可靠与非可靠通信链接，它是高可用性系统中的重要组件。它支持“服务发现”，即远端进程和任务、节点以及通信链接的动态发现，并对其进行监视，向系统提供即时故障通知。-OSE' s message-passing mechanism called the use of OSE Link Handler (OSE link processor) procedures, with a number of nodes in the system (in which each node has its own operating system) work in a transparent manner. OSE Link Handler can support reliable communications link with non-reliable, high-availability system, it is an important component. It supports the " service discovery" , that is, the remote process and the task nodes and communication links to the dynamic discovery, and surveillance systems to provide real-time failure to notify.