Salve a tutti.
Sto iniziando a capire qualcosa di ASP.NET.
Al primo tentativo si pagina, come da esempi sulla guida MS, mi imbatto in questo errore:

Server Error in '/Mod05CS' Application.
--------------------------------------------------------------------------------

Failed to access IIS metabase.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.Hosting.HostingEnvironmentException: Failed to access IIS metabase.

The process account used to run ASP.NET must have read access to the IIS metabase (e.g. IIS://servername/W3SVC). For information on modifying metabase permissions, please see http://support.microsoft.com/?kbid=267904.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[HostingEnvironmentException: Failed to access IIS metabase.]
System.Web.Configuration.MetabaseServerConfig.MapP athCaching(String siteID, VirtualPath path) +3492138
System.Web.Configuration.MetabaseServerConfig.Syst em.Web.Configuration.IConfigMapPath.MapPath(String siteID, VirtualPath vpath) +9
System.Web.Hosting.HostingEnvironment.MapPathActua l(VirtualPath virtualPath, Boolean permitNull) +163
System.Web.CachedPathData.GetConfigPathData(String configPath) +382
System.Web.CachedPathData.GetConfigPathData(String configPath) +382
System.Web.CachedPathData.GetConfigPathData(String configPath) +243
System.Web.CachedPathData.GetConfigPathData(String configPath) +243
System.Web.CachedPathData.GetApplicationPathData() +68
System.Web.CachedPathData.GetVirtualPathData(Virtu alPath virtualPath, Boolean permitPathsOutsideApp) +3385647
System.Web.Configuration.RuntimeConfig.GetLKGRunti meConfig(VirtualPath path) +189

Premesso che ho attivato il servizioIIS su quella pagina come ASP.NET 2.0 ma non riesco
a capire la natura del problema.

Come devo operare ?
Grazie a tutti in anticipo.