Invalid application path

Microsoft.Windows.InternetInformationServices.2008.WebSite.RootApplicationDefined.Monitor (UnitMonitor)

Knowledge Base article:

Summary

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.

Resolutions

Set the application path for a site

A Web site must have a valid application path. If the application path is incorrect, the site will not start. Set a valid application path for the Web site, then restart the site.

Set a valid application path for the Web site

To set a valid application path for the Web site:

        <application path="/">

              <virtualDirectory path="/" physicalPath="%SystemDrive%\inetpub\wwwroot" />

        </application>

Restart the Web site

To restart the Web site:

You can also do this using the links below:

Stop Web Site

Start Web Site

Element properties:

TargetMicrosoft.Windows.InternetInformationServices.2008.WebSite
Parent MonitorSystem.Health.ConfigurationState
CategoryConfigurationHealth
EnabledTrue
Alert GenerateTrue
Alert SeverityError
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeMicrosoft.Windows.InternetInformationServices.2008.WebSite.EventLogManualReset2StateMonitorType
RemotableTrue
AccessibilityPublic
Alert Message
Invalid application path
{0}
RunAsDefault

Source Code:

<UnitMonitor ID="Microsoft.Windows.InternetInformationServices.2008.WebSite.RootApplicationDefined.Monitor" Accessibility="Public" Enabled="onEssentialMonitoring" Target="Microsoft.Windows.InternetInformationServices.2008.WebSite" ParentMonitorID="SystemHealth!System.Health.ConfigurationState" Remotable="true" Priority="Normal" TypeID="Microsoft.Windows.InternetInformationServices.2008.WebSite.EventLogManualReset2StateMonitorType" ConfirmDelivery="false">
<Category>ConfigurationHealth</Category>
<AlertSettings AlertMessage="Microsoft.Windows.InternetInformationServices.2008.WebSite.RootApplicationDefined.Monitor.AlertMessage">
<AlertOnState>Error</AlertOnState>
<AutoResolve>true</AutoResolve>
<AlertPriority>Normal</AlertPriority>
<AlertSeverity>Error</AlertSeverity>
<AlertParameters>
<AlertParameter1>$Data/Context/EventDescription$</AlertParameter1>
</AlertParameters>
</AlertSettings>
<OperationalStates>
<OperationalState ID="ManualResetEventRaised" MonitorTypeStateID="ManualResetEventRaised" HealthState="Success"/>
<OperationalState ID="ErrorEventRaised" MonitorTypeStateID="ErrorEventRaised" HealthState="Error"/>
</OperationalStates>
<Configuration>
<LogName>System</LogName>
<Expression>
<And>
<Expression>
<RegExExpression>
<ValueExpression>
<XPathQuery>EventDisplayNumber</XPathQuery>
</ValueExpression>
<Operator>MatchesRegularExpression</Operator>
<Pattern>^(5056|5161)$</Pattern>
</RegExExpression>
</Expression>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="String">PublisherName</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="String">Microsoft-Windows-WAS</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
</And>
</Expression>
</Configuration>
</UnitMonitor>