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Event ID 1044 — IIS Web Site Availability

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Applies To: Windows Server 2008 R2

Internet Information Services (IIS) Web sites that use HTTP rely on several important IIS components for their availability. The Windows Process Activation Service (WAS), the World Wide Publishing Service (W3SVC), the HTTP service, all must be running correctly. In addition, a properly running application pool must be available for the Web site’s applications. If any of these components is not functioning, the Web site will not be available.

Event Details

Product: Internet Information Services
ID: 1044
Source: Microsoft-Windows-IIS-W3SVC
Version: 7.5
Symbolic Name: W3SVC_EVENT_WMS_SITE_APP_POOL_ID_ERROR
Message: The virtual site %1 is invalid because the application pool ID for the site is null.

Resolve

Set a valid application pool

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

To configure a valid application pool for the Web site:

  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, select the Web site that you have to configure.
  4. In the Actions pane, click Basic Settings... The Edit Site dialog box appears.
  5. To the right of Application pool:, click the Select... button. The Select Application Pool dialog box appears.
  6. In the Application Pool drop-down box, select a valid application pool for the Web site.
  7. Click OK to close the Select Application Pool dialog box.
  8. Click OK to close the Edit Site dialog box.
  9. If the site is not already started, in the Actions pane, click Start to start the Web site.

Verify

To verify that a Web site is started, you can use either IIS Manager or the appcmd command line utility.

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

To verify that the Web site is started by using the appcmd command line utility:

  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. Change the directory to %SystemDrive%\Windows\System32\inetsrv.
  3. Run the following command: appcmd.exe list site -site.name:"Site Name". If the Web site is started, the output will resemble the following:

        SITE "Default Web Site" (id:1,bindings:http/*:80:,state:Started)

To verify that the Web site is started by using IIS Manager:

  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 computer name.
  4. In the Connections pane, click the Sites node.
  5. In Features View, look for the Web site name. The Web site status will be indicated under the Status column. If the Web site is started and is using the HTTP protocol, Started(http) will appear.

IIS Web Site Availability

Internet Information Services (IIS) 7.5