I have changed the CustomSetting file. And now am getting the bellow error. Am on Nav 2009 and using SQL express.
Microsoft Dynamics NAV
The Microsoft Dynamics NAV Server cannot connect the Change Listener to SQL Server because of the following error: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)