If Workflow Conductor is configured to use the Solution Deployment method, your site may be temporarily unavailable when the workflow is deployed from Conductor Studio. Workflow solutions are deployed as features using the Microsoft recommended WSP deployment method, just like a Visual Studio workflow. This automatically recycles the application pool, which makes the site temporarily unavailable. In most cases, this is nearly instantaneous and should only be noticeable if a Web page is loaded in the few seconds after the deployment. Administrators can schedule this deployment and the associated application pool recycle to occur at a scheduled time using the Workflow Deployment Schedule options in the Workflow Conductor Control Panel General Settings page. Application pool recycling does not occur when using the Simple Publishing deployment method.