Hi,, During deployment of Microsoft Dynamics AX 2009 Workflow on one of environments running on Windows Server 2008 R2 I was able to validate Workflow URL in Basic > Setup > Settings for workflow. I was also able to access Workflow page from AOS server, but when running the workflow processing batch job I got an error in the Windows Event viewer for Microsoft Dynamics Ax Workflow: Exception thrown in SysWorkflowEventDispatcher-onAcknowledgeWorkflowActivation SysWorkflowEventDispatcher-raiseWorkflowActivationEvent : Web service failed: workflow id 000048_201 System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.ComponentModel.Win32Exception: Access is denied at System.Diagnostics.ProcessManager.OpenProcess(Int32 processId, Int32 access, Boolean throwIfExited) at System.Diagnostics.NtProcessManager.GetModuleInfos(Int32 processId, Boolean firstModuleOnly) at System.Diagnostics.Process.get_MainModule() at System.Workflow.Runtime.PerformanceCounterManager.SetInstanceName(String instanceName) at System.Workflow.Runtime.WorkflowRuntime.StartRuntime() at Microsoft.Dynamics.Framework.Workflow.AxWorkflowRuntime.get_WindowsWorkflowRuntime() at Microsoft.Dynamics.Framework.Workflow.AxWorkflowRuntime.CreateWorkflowInstance(XmlReader workflowDefinitionReader, Guid workflowInstanceId) at Microsoft.Dynamics.Framework.Workflow.WorkflowInstanceManager.Activate(Activity workflowRoot, Guid workflowInstanceId) at Microsoft.Dynamics.Framework.Workflow.WorkflowInstanceManager.Activate(WorkflowActivationRequest activationInfo) at Microsoft.Dynamics.Framework.Workflow.WebServices.AxaptaWorkflowInstance.Activate(WorkflowActivationRequest activationRequest)