Sets whether external Microsoft .NET assemblies can be used on a report.
When you use the Visual Studio Report Designer for creating reports for the RoleTailored client, you can reference external assemblies to add functionality to a report. The location of the assembly must be accessible from the RoleTailored client. To use external assemblies on a report, the EnableExternalAssemblies property must be set to Yes.
For more information about referencing assemblies, see Adding Custom Code to a Report (Visual Studio Report Designer).