The plug-in is optional component of the DTM DB Stress tool. Only Professional and Enterprise versions support Plug-ins.
This component enables user to optimize SQL statements by execution details analyzing. A query execution plan outlines how the Microsoft SQL Server query optimizer actually ran task's statement. This information is valuable when it comes time to find out why a specific SQL statement is running slow.

The plugin is "showplan.dll" file that must me placed in the main program directory in case is was ordered separately. In case you've ordered DTM DB Stress Enterprise the setup program will place all required files automatically.