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Application pool configuration related failure: The World Wide Web Publishing Service failed to create a worker process for the application pool.

Application_pool_configuration_related_failure__The_World_Wide_Web_Publishing_Service_failed_to_create_a_worker_process_for_the_application_pool__3_Rule (Rule)

Knowledge Base article:

Summary

The WWW Publishing Service was unable to successfully start a worker process.

Causes

This issue could be attributed to any of the following problems:

Resolutions

Ensure that the identity of the application pool is correct and is added to the IIS_WPG group. Also, verify that the server is not constrained to memory resources and can launch another process.

External

The World Wide Web Publishing Service failed to create a worker process for the application pool ''%1''. The data field contains the error number.

Element properties:

TargetMicrosoft.Windows.InternetInformationServices.2003.ApplicationPool
CategoryEventCollection
EnabledTrue
Alert GenerateFalse
RemotableTrue
Event LogSystem
CommentMom2005ID='{9F6094BB-AC3B-4508-B88D-E12A1CB26320}'

Member Modules:

ID Module Type TypeId RunAs 
DataSource DataSource Microsoft.Windows.EventProvider Default
WriteToDB WriteAction Microsoft.SystemCenter.CollectEvent Default
WriteToDW WriteAction Microsoft.SystemCenter.DataWarehouse.PublishEventData Default

Source Code:

<Rule ID="Application_pool_configuration_related_failure__The_World_Wide_Web_Publishing_Service_failed_to_create_a_worker_process_for_the_application_pool__3_Rule" Comment="Mom2005ID='{9F6094BB-AC3B-4508-B88D-E12A1CB26320}'" Enabled="onEssentialMonitoring" Target="Microsoft.Windows.InternetInformationServices.2003.ApplicationPool" ConfirmDelivery="false" Remotable="true" Priority="Normal" DiscardLevel="100">

  <Category>EventCollection</Category>

  <DataSources>

    <DataSource ID="DataSource" TypeID="Windows!Microsoft.Windows.EventProvider">

      <ComputerName>$Target/Host/Host/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</ComputerName>

      <LogName>System</LogName>

      <Expression>

        <And>

          <Expression>

            <SimpleExpression>

              <ValueExpression>

                <XPathQuery>EventDisplayNumber</XPathQuery>

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value>1022</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

          <Expression>

            <SimpleExpression>

              <ValueExpression>

                <XPathQuery>PublisherName</XPathQuery>

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value>W3SVC</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

          <Expression>

            <SimpleExpression>

              <ValueExpression>

                <XPathQuery>Params/Param[1]</XPathQuery>

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value>$Target/Property[Type="IISCommon!Microsoft.Windows.InternetInformationServices.ApplicationPool"]/PoolID$</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

        </And>

      </Expression>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="WriteToDB" TypeID="SC!Microsoft.SystemCenter.CollectEvent"/>

    <WriteAction ID="WriteToDW" TypeID="SCDW!Microsoft.SystemCenter.DataWarehouse.PublishEventData"/>

  </WriteActions>

</Rule>