Several basic IIS troubleshooting tasks are helpful in many different troubleshooting situations. These tasks include: disabling HTTP friendly error messages in Internet Explorer, generating a custom HTTP request, checking basic request functionality, browsing with different host name styles, using substatus and Win32 errors in W3C extended logging, configuring the WWW service to log worker process recycling events, checking Windows NT system and application event logs, checking the HTTP error and IIS logs, restarting the IIS service, and identifying the process ID of the worker process. Perform these tasks during the initial steps of the discovery phase, or when initially diagnosing a problem.