I have had similar problems: I'm trying to run an existing R2 site with IIS 7 on vista. I read that I need to set the app pool to run as classic? which i did.
i get this error now:
seems lik a VPP err but have checed that the paths are correct and that IIS_IUSRS is setup to access the folders.? any ideas please
[TypeInitializationException: The type initializer for 'EPiServer.DataAbstraction.UnifiedPathInfo' threw an exception.]
at EPiServer.DataAbstraction.UnifiedPathInfo.Load(String path)
at EPiServer.FileSystem.DefaultAccessControlList..ctor(String path)
at EPiServer.Web.Hosting.DirectoryAccessControl..ctor(String virtualPath)
at EPiServer.Web.Hosting.UnifiedDirectory.get_DirectoryAC()
at EPiServer.Web.Hosting.UnifiedDirectory.QueryAccess()
at EPiServer.Web.Hosting.UnifiedDirectory.QueryDistinctAccess(AccessLevel access)
at EPiServer.Web.Hosting.VirtualPathVersioningProvider.GetDirectory(String virtualPath)
at EPiServer.Web.Hosting.VirtualPathHandler.InitializeProviders(ProviderSettingsCollection providers)
at EPiServer.Web.InitializationModule.InitializeVirtualPathProviders(VirtualPathElement vpElement)
at EPiServer.Web.InitializationModule.Initialize(EPiServerSection config, Settings settings, ConnectionStringSettingsCollection connectionStringSettings)
at EPiServer.Web.InitializationModule.StaticInitialization()
at EPiServer.Web.InitializationModule.Application_BeginRequest(Object sender, EventArgs e)
at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
[Inner exception TypeInitializationException: The type initializer for 'EPiServer.CacheManager' threw an exception.]
at EPiServer.StaticCacheKey.EnsureKey()
at EPiServer.StaticCacheKey..ctor(String keyName)
at EPiServer.DataAbstraction.UnifiedPathInfo..cctor()