Some features are mostly behind the scenes, like the improved FTP protocol handler.
有些功能主要是在后台进行的，比如改进的FTP协议处理程序。
Think of a URI as a uniform resource locator (URL) without a protocol handler behind it.
可将URI看作是幕后没有协议处理程序的统一资源定位符(uniform resource locator,URL)。
The protocol handler only handles the semantics required for establishing a connection, receiving data, and sending data.
协议处理器只处理建立连接、接收数据和发送数据所需的语义。
Pluggable protocols allow you to provide a new protocol handler that will be called for any requests that use the new protocol scheme.
可插协议允许你在新的协议方案基础上，提供能够被任何请求调用的新的协议处理程序。
A pluggable MIME filter is essentially an asynchronous pluggable protocol handler that implements an IInternetProtocolSink interface.
一个可插的MIME过滤器本质上只是一个实现了IInternetProtocolSink接口的异步可插处理器。
The protocol handler cannot use any Windows messaging to switch back to the thread it was instantiated on, since the protocol handler must work on non-GUI threads.
协议处理器不能使用任何微软Windows消息机制转回到线程中，协议处理器必须工作在非GUI线程中。
Both of the publish applications in this article use IBM's SSL support, but other implementations can be used by changing the protocol handler and the security provider.
本文中的两个发布应用程序都使用IBM的SSL支持，但是可以通过更改协议处理程序和安全性供应商来使用其它实现。
When a client application makes a request, Urlmon looks up the protocol scheme in the registry and creates an instance of the protocol handler registered for that protocol scheme.
当客户端程序作出请求，Urlmon在注册表中查看协议方案并创建一个已经为这个协议方案注册的协议处理程序的实例。
Essentially, the main differentiator between the HTTP adapter and another WBI technology adapter is that the HTTP adapter has a protocol handler designed to handle the semantics of the HTTP protocol.
从本质上说，HTTPAdapter和其他WBI技术适配器的不同在于HTTP Adapter有处理HTTP协议语义的协议处理器。
Essentially, the main differentiator between the HTTP adapter and another WBI technology adapter is that the HTTP adapter has a protocol handler designed to handle the semantics of the HTTP protocol.
从本质上说，HTTPAdapter和其他WBI技术适配器的不同在于HTTP Adapter有处理HTTP协议语义的协议处理器。
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