Surface Area Configuration for Features (User-Defined Functions) - Analysis Services
Analysis Services allows you to load assemblies containing user-defined functions. These functions can be based on the common language runtime (CLR) or can be Component Object Model (COM) objects. Objects developed using the CLR can be secured using the CLR security model. COM objects do not support this security model. Unless your applications require user-defined COM objects, disable the loading of these objects.
Enable loading of user-defined COM functions
If checked, Analysis Services will load user-defined COM functions.
For more information about configuring server options, see sp_configure (Transact-SQL) in Microsoft SQL Server Books Online.