Could not access the IIS "WebAdministration" WMI provider
Symptoms
When you scan a Microsoft IIS server running Windows Vista, Windows Server 2008 or above the scan fails with the error "Could not access the IIS "WebAdministration" WMI provider".
Cause
By default, Windows Vista, Windows Server 2008 and above require that the IIS Management Scripts and Tools role service be installed before the server can be accessed using WMI.
Resolution
Install the IIS Management Scripts and Tools role service on the IIS server that you wish to scan. More information can be found on the IIS Management Scripts and Tools page.