IIS Protocol Adapter
Applies To: Windows Server 2008 R2
An Internet Information Services (IIS) protocol adapter is a Windows service that receives messages on a specific network protocol and communicates with The Windows Process Activation Service (WAS) to route incoming messages to the correct worker process.
The following is a list of all aspects that are part of this managed entity:
An Internet Information Services (IIS) Web server responds to requests on a given protocol by using a listener adapter. The protocol-specific listener adapter communicates with the Windows Process Activation Service (WAS) by means of a protocol adapter. If an error occurs when WAS communicates with the listener adapter through the protocol adapter, the Web server may be unable to respond to requests on the given protocol.
The Windows Process Activation Service (WAS) reads the configuration for a protocol adapter upon startup. Changes to protocol adapter configuration take effect only when the adapter connects with WAS. If errors occur when WAS is using protocol adapter specific configuration, configuration information for the adapter may not be available.