[Description from website:]

The Microsoft SQL Server support team uses several internally-written utilities to make it easier to work on a typical customer support case. These utilities may also be useful to database developers and system administrators who work with Microsoft SQL Server 2000 and Microsoft SQL Server 2005.  The utilities are collectively called the RML Utilities for SQL Server.

With the RML Utilities you can answer questions such as the following: 

• Which application, database or login is consuming the most resources, and which queries are responsible for that.
• Whether there were any plan changes for a batch during the time when the trace was captured and how each of those plans performed.
• What queries are running slower in today’s data as compared to a previous set of data.