A Cause for HRESULT 0X80131468 when accessing IsolatedStorageBackingStore

The scenario I am facing is that I have an ASP.NET web service (.NET 3.5) running on an W2k3 server which is using the CacheManager/IsolatedStorage store to store a persisted state variable. This configuration has been working fine for quite sometime until we changed the physical machine. Now whenver the code that accesses that value runs it throws an IsolatedStorageException (Posted below). As I understand it the user/assembly store is what is being accessed and the executing user is a member of the local administrators group. Does anyone have a suggestion as to what privilege is missing?

Error

Unable to create the store directory. (Exception from HRESULT: 0x80131468)

Stack Trace

Type: Microsoft.Practices.ObjectBuilder2.BuildFailedException. Error: The current build operation (build key Build Key[Microsoft.Practices.EnterpriseLibrary.Caching.ICacheManager, Cache Manager]) failed: Unable to create the store directory. (Exception from HRESULT: 0x80131468) (Strategy type ConfiguredObjectStrategy, index 2). Trace: at Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) at Microsoft.Practices.ObjectBuilder2.Builder.BuildUp(IReadWriteLocator locator, ILifetimeContainer lifetime, IPolicyList policies, IStrategyChain strategies, Object buildKey, Object existing) at Microsoft.Practices.ObjectBuilder2.Builder.BuildUp[TTypeToBuild](IReadWriteLocator locator, ILifetimeContainer lifetime, IPolicyList policies, IStrategyChain strategies, Object buildKey, Object existing) at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.EnterpriseLibraryFactory.BuildUp[T](IReadWriteLocator locator, ILifetimeContainer lifetimeContainer, IConfigurationSource configurationSource) at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.LocatorNameTypeFactoryBase1.CreateDefault() at Microsoft.Practices.EnterpriseLibrary.Caching.CacheFactory.GetCacheManager() at Ept.Commands.SettlementCommand.BeginSettlement() in c:\Projects\EPT\Ept.Framework.Services\Commands\SettlementCommand.cs:line 102 at Ept.Commands.SettlementCommand.ExecuteKernel(SettlementRequest request) in c:\Projects\EPT\Ept.Framework.Services\Commands\SettlementCommand.cs:line 188 at Ept.Command2.Execute(TRequest request) in c:\Projects\EPT\Ept.Framework.Services\Commands\Command.cs:line 79. ExecutingStrategyTypeName: ConfiguredObjectStrategy ExecutingStrategyIndex: 2 BuildKey: Build Key[Microsoft.Practices.EnterpriseLibrary.Caching.ICacheManager, Cache Manager] Type: System.IO.IsolatedStorage.IsolatedStorageException. Error: Unable to create the store directory. (Exception from HRESULT: 0x80131468). Trace: at System.IO.IsolatedStorage.IsolatedStorageFile.nGetRootDir(IsolatedStorageScope scope) at System.IO.IsolatedStorage.IsolatedStorageFile.InitGlobalsNonRoamingUser(IsolatedStorageScope scope) at System.IO.IsolatedStorage.IsolatedStorageFile.GetRootDir(IsolatedStorageScope scope) at System.IO.IsolatedStorage.IsolatedStorageFile.GetGlobalFileIOPerm(IsolatedStorageScope scope) at System.IO.IsolatedStorage.IsolatedStorageFile.Init(IsolatedStorageScope scope) at System.IO.IsolatedStorage.IsolatedStorageFile.GetStore(IsolatedStorageScope scope, Type domainEvidenceType, Type assemblyEvidenceType) at Microsoft.Practices.EnterpriseLibrary.Caching.BackingStoreImplementations.IsolatedStorageBackingStore.Initialize() at Microsoft.Practices.EnterpriseLibrary.Caching.BackingStoreImplementations.IsolatedStorageBackingStore..ctor(String storageAreaName, IStorageEncryptionProvider encryptionProvider) at Microsoft.Practices.EnterpriseLibrary.Caching.Configuration.IsolatedStorageBackingStoreAssembler.Assemble(IBuilderContext context, CacheStorageData objectConfiguration, IConfigurationSource configurationSource, ConfigurationReflectionCache reflectionCache) at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.AssemblerBasedObjectFactory2.Create(IBuilderContext context, TConfiguration objectConfiguration, IConfigurationSource configurationSource, ConfigurationReflectionCache reflectionCache) at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.AssemblerBasedCustomFactory2.Create(IBuilderContext context, String name, IConfigurationSource configurationSource, ConfigurationReflectionCache reflectionCache) at Microsoft.Practices.EnterpriseLibrary.Caching.Configuration.CacheManagerAssembler.Assemble(IBuilderContext context, CacheManagerDataBase objectConfiguration, IConfigurationSource configurationSource, ConfigurationReflectionCache reflectionCache) at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.AssemblerBasedObjectFactory2.Create(IBuilderContext context, TConfiguration objectConfiguration, IConfigurationSource configurationSource, ConfigurationReflectionCache reflectionCache) at Microsoft.Practices.EnterpriseLibrary.Caching.CacheManagerCustomFactory.Create(IBuilderContext context, CacheManagerDataBase objectConfiguration, IConfigurationSource configurationSource, ConfigurationReflectionCache reflectionCache) at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.AssemblerBasedCustomFactory2.Create(IBuilderContext context, String name, IConfigurationSource configurationSource, ConfigurationReflectionCache reflectionCache) at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.AssemblerBasedCustomFactory`2.CreateObject(IBuilderContext context, String name, IConfigurationSource configurationSource, ConfigurationReflectionCache reflectionCache) at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.ConfiguredObjectStrategy.PreBuildUp(IBuilderContext context) at Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context).

The root cause of the issue is that the account which the web service was running under did not have a local user profile created thus the user assembly store didn't exist. The simple fix was just to logon to the box with the service account.