Event ID 5169 — IIS Protocol Adapter Configuration

Applies To: Windows Server 2008

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.

Event Details

Product: Internet Information Services
ID: 5169
Source: Microsoft-Windows-WAS
Version: 7.0
Message: The Windows Process Activation Service couldn't process configuration information for listener adapter '%1'. The data field contains the error number.


Stop and restart WAS

Stopping the WAS service will also stop the World Wide Web Publishing Service (W3SVC) and any other services that depend on WAS. Thus, you may also have to start these other services.

To perform this procedure, you must have membership in Administrators, or you must have been delegated the appropriate authority.

To stop and restart WAS:

  1. Open an elevated Command Prompt window. Click Start, point to All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
  2. At the command prompt, type net stop was /y.
  3. At the command prompt, type net start was.
  4. To restart W3SVC, from the command prompt, type net start w3svc. Also, start any other services that were stopped when WAS was shut down.


You can use an Internet browser to verify that a protocol adapter is functional by following these steps:

  1. Select a Web site or application that is configured to respond to the protocol you want to verify.
  2. In the address bar of your browser, type a protocol-specific request to the Web site or applications that you chose in step 1. For example, https://servername/default.htm
  3. If the protocol adapter is working, your browser client should display the expected output page.

Note: If the protocol adapter is from a third party, refer to the documentation for the adapter. The documentation may have  specific steps that explain how to verify the state of the service or process that hosts the protocol adapter.

IIS Protocol Adapter Configuration

Internet Information Services (IIS) 7.0