Dedicated administrator is one of the new feature introduced from SQL Server 2005. This is a wonderful feature for DBA’s to troubleshoot SQL Server when it goes unresponsive. For more on DAC check the article by Deepak. However this feature is not supported in SQL Express edition by default. So how can I utilize this feature in SQL Express edition?
SQL Server 2005 provides a special diagnostic connection for administrators when standard connections to the server are not possible. This diagnostic connection allows an administrator to access SQL Server to execute diagnostic queries and troubleshoot problems even when SQL Server is not responding to standard connection requests.