Security Problems In The Initial Synchronization

Hello everybody, I would be thankful if you try to help me with my problem,

I am using merge replication under SQL Server 2005.

In our system there is a central database running SQL Server 2005 Enterprise Edition with a big database published for merge replication. There are too a lot of clients running SQL Server 2005 Express Edition that pull subscriptions to the central database. How the clients create subscriptions and run the synchronization process is posted below (RMO Progamming).

When running the syncrhonization process, the Distributor connects OK, the Publisher Connects OK... but when the snapshot copy process starts, the execution is halted with an init session error "unknown user name or wrong password" (more or less because I get the message in spanish ;)

I think that the problem is snapshot folder sharing permissions, but I do not kow how to solve it.

Thank you very much!

=========================== Subscription creation

subscription = new MergePullSubscription();

subscription->ConnectionContext = subscriberConn;

subscription->PublisherName = m_publisher_name;

subscription->PublicationName = m_publication_name;

subscription->PublicationDBName = m_publication_database_name;

subscription->DatabaseName = m_subscription_database_name;

subscription->HostName = m_host_name;

subscription->SynchronizationAgentProcessSecurity->Login = m_win_login;

subscription->SynchronizationAgentProcessSecurity.Password = m_win_password;

subscription->CreateSyncAgentByDefault = true;

subscription->Create();

publication->MakePullSubscriptionWellKnown(m_subscriber_name, m_subscription_database_name, SubscriptionSyncType::None, MergeSubscriberType::Local, 0);



=========================== Syncrhonization

subscription->SynchronizationAgent->Distributor = m_publisher_name;

subscription->SynchronizationAgent->DistributorSecurityMode = SecurityMode::Standard;

subscription->SynchronizationAgent->DistributorLogin= m_sql_user;

subscription->SynchronizationAgent->DistributorPassword = m_sql_user_password;

subscription->SynchronizationAgent->Publisher = m_publisher_name;

subscription->SynchronizationAgent->PublisherSecurityMode = SecurityMode::Standard;

subscription->SynchronizationAgent->PublisherLogin= m_sql_user;

subscription->SynchronizationAgent->PublisherPassword = m_sql_user_password;

subscription->SynchronizationAgent->Subscriber = m_subscriber_name;

subscription->SynchronizationAgent->SubscriberSecurityMode = SecurityMode::Standard;

subscription->SynchronizationAgent->SubscriberLogin= m_sql_user;

subscription->SynchronizationAgent->SubscriberPassword = m_sql_user_password;

subscription->SynchronizationAgent->HostName = m_host_name;

subscription->SynchronizationAgent->Status += new AgentCore::StatusEventHandler(this, &ReplicationManager::SynchronizationStatusChanged);

subscription->SynchronizationAgent->Synchronize();