Internal Calls to Log File
The Internal Calls to Log File option will cause the connector to build a log file that shows all of the calls that are made to the connector and the internal execution path of the connector. This is the only way to debug the connector when you use it with SQL Server or SQL Server Integration Services. Execution logging is also a convenient debugging mechanism when you use it with ADO and the ADO Data Control. You will probably only use this logging option when support employee directs you to use it for debugging purposes.