Access to the registry key 'HKEY_CURRENT_USER\Software\Microsoft\VSCommon\12.0\ClientServices\TokenStorage\VisualStudio' is denied.

Hello,

I am using VS 2013 to create a solution in SharePoint 2013 to access the TFS 2013 WIT. When I want to make a connection to the TFSStore I get following error: Access to the registry key 'HKEY_CURRENT_USER\Software\Microsoft\VSCommon\12.0\ClientServices\TokenStorage\VisualStudio' is denied.

This is my code:

 public static bool ValidateTFSConnection(string TfsConnectionURL, SecureStoreCredentialCollection TfsUser, out string errormessage)
        {
            errormessage = null;
            WorkItemStore wistore = null;

            try
            {
                wistore = ConnectToTFS(TfsConnectionURL, TfsUser);
            }
            catch(Exception ex)
            {
                errormessage = ex.Message;
            }

            return (wistore != null ? true : false);
        }

 static WorkItemStore ConnectToTFS(string TFSConnectionURL, SecureStoreCredentialCollection TfsUser)
        {
            TfsTeamProjectCollection tfs;
            if (TfsUser == null) 
            {
                //Uri uri = new Uri("http://tempuri.org/");
                //ICredentials credentials = CredentialCache.DefaultCredentials;
                //NetworkCredential cred = credentials.GetCredential(uri, "Basic");
                //NetworkCredential cred = CredentialCache.DefaultNetworkCredentials;
                tfs = new TfsTeamProjectCollection(new Uri(TFSConnectionURL), System.Net.CredentialCache.DefaultNetworkCredentials);
                //tfs = new TfsTeamProjectCollection(new Uri(TFSConnectionURL)); //, cred);
            }
            else
            {
                string user = DecryptSecureString(TfsUser.First(x => x.CredentialType == SecureStoreCredentialType.WindowsUserName).Credential);
                string pass = DecryptSecureString(TfsUser.First(x => x.CredentialType == SecureStoreCredentialType.WindowsPassword).Credential);

                tfs = new TfsTeamProjectCollection(new Uri(TFSConnectionURL), new NetworkCredential(user, pass));
            }

                /*case 1:
                    if (HttpContext.Current == null) return null;
                    var baseUserTpcConnection = new TfsTeamProjectCollection(new Uri(TFSConnectionURL));
                    var ims = baseUserTpcConnection.GetService<IIdentityManagementService>();

                    var identity = ims.ReadIdentity(
                            IdentitySearchFactor.AccountName,
                            HttpContext.Current.User.Identity.Name,
                            MembershipQuery.None,
                            ReadIdentityOptions.None);

                    tfsCred = identity.Descriptor;
                    tfs = new TfsTeamProjectCollection(new Uri(TFSConnectionURL), tfsCred as IdentityDescriptor);
                    break;*/
            tfs.EnsureAuthenticated();
            
            var wistore = (WorkItemStore)tfs.GetService(typeof(WorkItemStore));

            //Log("ConnectToTFS", TFSConnectionURL);

            return wistore;
        }

tfs.EnsureAuthenticated(); is the part that returns the exception.

Ronald.

Ronald Put