We use latest SAP .Net Connector Version 3.1.5. Sometimes the application crashed with the following error message: System.AccessViolationExceptionbei <Module>.SAP_CMACCPTP3(Int32, Int32, Byte*, Void*, Int32*)bei SAP.Middleware.Connector.CpicConnection.Accept(Int32)bei SAP.Middleware.Connector.CpicDriver.Accept(Int32)bei SAP.Middleware.Connector.RfcConnection.Accept(Int32)bei SAP.Middleware.Connector.RfcConnection.RfcServerWorkerThreadProc(System.Object)bei System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)bei System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)bei System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()bei System.Threading.ThreadPoolWorkQueue.Dispatch() What can we do?