Wednesday, October 12, 2011

Failed to access IIS metabase.

I have windows XP Professional installed on my machine and I got this error after
configuration of my virtual directory on IIS.

Server Error in '/myweb' 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

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.MapPathCaching(String siteID, VirtualPath path) +1076
   System.Web.Configuration.MetabaseServerConfig.System.Web.Configuration.IConfigMapPath2.MapPath(String siteID, VirtualPath vpath) +9
   System.Web.Hosting.HostingEnvironment.MapPathActual(VirtualPath virtualPath, Boolean permitNull) +301
   System.Web.Hosting.HostingEnvironment.MapPathInternal(VirtualPath virtualPath, Boolean permitNull) +51
   System.Web.CachedPathData.GetPhysicalPath(VirtualPath virtualPath) +39
   System.Web.CachedPathData.GetConfigPathData(String configPath) +704
   System.Web.CachedPathData.GetConfigPathData(String configPath) +583
   System.Web.CachedPathData.GetApplicationPathData() +38
   System.Web.CachedPathData.GetVirtualPathData(VirtualPath virtualPath, Boolean permitPathsOutsideApp) +8778063
   System.Web.Configuration.RuntimeConfig.GetConfig(VirtualPath path) +46
   System.Web.Configuration.RuntimeConfig.GetLKGRuntimeConfig(VirtualPath path) +96


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1

Solution :-

This Error Caused Because You Not Have Register ASP.Net with IIS.
Please Follow Following Step to Regiser ASP.Net With IIS.


-> Go to Start - >  Run -> Cmd.


-> GO to Your System Drive Mostly C Drive.


-> Type C:\WINDOWS\Microsoft.NET\Framework\<your framework version directory>\aspnet_regiis -i

Just wait And Message comes Successfully Register.

Or you go to your visual studio command prompt in visual studio tools and run the same command

aspnet_regiis –i



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