Hi all, i have the same issue using SQL Server 2005 Persistence with JBoss 4.0.5, i have also tried the sqljdbc.jar v1.1 but i'm still having this exception : Caused by: org.jboss.resource.JBossResourceException: SQLException; - nested throwable: (com.microsoft.sqlserver.jdbc.SQLServerException: Le démarrage | d'une nouvelle demande n'est pas autorisée car celle-ci doit être accompagnée d'un descripteur de transaction valide.) | at org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.checkException(BaseWrapperManagedConnection.java:636) | at org.jboss.resource.adapter.jdbc.local.LocalManagedConnection.commit(LocalManagedConnection.java:73) | at org.jboss.resource.connectionmanager.TxConnectionManager$LocalXAResource.commit(TxConnectionManager.java:905) the JDBC driver seems require a valid transaction descriptor ... Is there a solution for this ? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3990916#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...