I'm hosting a web service on a separate domain to my DNN installation. In the service I have added references to the DNN DB in web.config, as well as the DNN assemblies to the web service bin folder.

I don't want to use IWeb for this because it is a separate domain and is only a web service.

I'm testing my web service and it's hitting the DNN DB and I have a webmethod that verifies an account based on username/password/portalid:

DotNetNuke.Entities.Users.UserController.ValidateUser(portalId, userName, password, "", "", "", userLoginStatus)

This is all working except there seems to be some caching after the verification.

I get this message returned from my service:

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Web.Services.Protocols.SoapException: System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.ArgumentException: Absolute path information is required.
   at System.Security.Util.StringExpressionSet.CreateListFromExpressions(String[] str, Boolean needFullPath)
   at System.Security.Permissions.FileIOPermission.AddPathList(FileIOPermissionAccess access, AccessControlActions control, String[] pathListOrig, Boolean checkForDuplicates, Boolean needFullPath, Boolean copyPathList)
   at System.Security.Permissions.FileIOPermission..ctor(FileIOPermissionAccess access, String path)
   at System.Web.InternalSecurityPermissions.PathDiscovery(String path)
   at System.Web.Caching.CacheDependency.Init(Boolean isPublic, String[] filenamesArg, String[] cachekeysArg, CacheDependency dependency, DateTime utcStart)
   at System.Web.Caching.CacheDependency..ctor(String filename, DateTime start)
   at System.Web.Caching.CacheDependency..ctor(String filename)
   at DotNetNuke.Services.Cache.FileBasedCachingProvider.FBCachingProvider.Insert(String CacheKey, Object objObject, Boolean PersistAppRestart)
   at DotNetNuke.Common.Utilities.DataCache.SetCache(String CacheKey, Object objObject, Boolean PersistAppRestart)
   at DotNetNuke.Common.Utilities.DataCache.SetCache(String CacheKey, Object objObject)
   at DotNetNuke.Entities.Host.HostSettings.GetHostSettings()
   at DotNetNuke.Common.Globals.get_HostSettings()
   at DotNetNuke.Common.Globals.get_PerformanceSetting()
   at DotNetNuke.Entities.Profile.ProfileController.GetPropertyDefinitions(Int32 portalId)
   at DotNetNuke.Entities.Profile.ProfileController.GetPropertyDefinitionsByPortal(Int32 portalId, Boolean clone)
   at DotNetNuke.Security.Profile.DNNProfileProvider.GetUserProfile(UserInfo& user)
   at DotNetNuke.Entities.Profile.ProfileController.GetUserProfile(UserInfo& objUser)
   at DotNetNuke.Entities.Users.UserInfo.get_Profile()
   at DotNetNuke.Entities.Users.UserInfo.set_FirstName(String Value)
   at DotNetNuke.Security.Membership.AspNetMembershipProvider.FillUserInfo(Int32 portalId, IDataReader dr, Boolean isHydrated, Boolean CheckForOpenDataReader)
   at DotNetNuke.Security.Membership.AspNetMembershipProvider.GetUserByUserName(Int32 portalId, String username, Boolean isHydrated)
   at DotNetNuke.Security.Membership.AspNetMembershipProvider.UserLogin(Int32 portalId, String username, String password, String verificationCode, UserLoginStatus& loginStatus)
   at DotNetNuke.Entities.Users.UserController.ValidateUser(Int32 portalId, String Username, String Password, String VerificationCode, String PortalName, String IP, UserLoginStatus& loginStatus)

I have no idea how to get past this message, anyone help out?

All I'm trying to do is use the DNN API to allow an external application to check if a user exists or not.

thanks,

Steve

BTW where did you find an advantage using the DNN API rather than just the membership class of AspNetSqlMembershipProvider (Membership.ValidateUser method) ?.

If (Membership.ValidateUser(user,password)) Then..