This Knowledgebase article provides information about errors in the Application Event Log indicating that IIS and W3SVC services could not be contacted to retrieve performance data.
These warnings arise when the system reboots and the performance counters are analyzed. The W3SVC and the IIS service are not started at this time because they start a short time later, when Neverfail Heartbeat has started, and begins application protection. In the case of the Exchange, this would include the W3SVC and IISAdmin service.
Once the services are started, the performance counters are initialized and available for monitoring.