I ran into alot of errors in the Event log for a customer on a relatively newly installed SQL Server 2012:
- Report Server (MSSQLSERVER) cannot load the TERADATA extension
- Report Server (MSSQLSERVER) cannot load the SQLPDW extension.
The main reason for these errors are that the TERADATA and SQLPDW extension are registrated by default when installing Reporting Services. If you are not using these extensions, they can be safely removed from the Reporting service configuration file rsreportserver.config. This file is located on the server where Reporting services is installed.
%SQL Server Root%\MSRS10_50.MSSQLSERVER\Reporting Services\ReportServer