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Event ID 5088 — IIS Application Pool Configuration

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Applies To: Windows Server 2008

To ensure Web site and Web application isolation, Internet Information Services (IIS) application pools must be configured to have unique names and correctly configured identities. If errors occur during the configuration of an application pool, the application pool may not be available to serve the Web sites and Web applications that are assigned to it.

Event Details

Product: Internet Information Services
ID: 5088
Source: Microsoft-Windows-WAS
Version: 7.0
Symbolic Name: WAS_EVENT_FAILED_TO_CONFIGURE_JOB_OBJECT
Message: The Windows Process Activation Service failed to properly configure the job object for application pool '%1'. The data field contains the error number.

Resolve

Stop and restart the application pool

Application pools occasionally have to be restarted in order to return to normal operation. Because application pools depend on the Windows Process Activation Service (WAS), you may have to restart WAS. If you restart WAS, you may also have to restart the World Wide Web Publishing Service (W3SVC), which depends on WAS.

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

To stop and start the application pool:

  1. Click Start, click Control Panel, and then click Administrative Tools.
  2. Right-click Internet Information Services (IIS) Manager and select Run as administrator.
  3. In the Connections pane, expand the server node and click Application Pools.
  4. On the Application Pools page, select the application pool you want to start or stop.
  5. In the Actions pane, do one of the following:
  6. Click Stop to stop the application pool.
  7. Click Start to start the application pool.

To stop or 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. Start any other services that were stopped when WAS was shut down, including W3SVC.

To start the W3SVC:

  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. Type net start w3svc.

Verify

An application pool that is correctly configured will start without incident. To verify that the application pool has started, use the following procedure.

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

To verify that an application pool has started:

  1. Click Start, click Control Panel, and then click Administrative Tools.
  2. Right-click Internet Information Services (IIS) Manager and select Run as administrator.
  3. In the Connections pane, expand the server node and select Application Pools.
  4. In Features View, the Status column for the application pool will indicate Started if the application pool has started.

IIS Application Pool Configuration

Internet Information Services (IIS) 7.0