Sandboxed code is running (SharePoint 2010 Products)
Applies to: SharePoint Server 2010, SharePoint Foundation 2010
Alert Name: SPServiceInstance sandboxed code is running
Event ID: No event ID
Summary: The SharePoint Sandboxed Code Host is a Windows NT service that runs on each Microsoft SharePoint Foundation server.
Symptoms: You are unable to perform requests that require the execution of user code or activation of sandboxed solutions that contain user code. The task that fails depends on the topology and on the server that has the stopped service.
Cause: The SharePoint Sandboxed Code Host service is not running.
Resolution: Start the service on the given server
You can restart the SharePoint Sandboxed Code Host on a specific server by using the following command at an elevated command prompt:
net start spusercodev4