By default, Client-Library reads the Open Client/Server runtime configuration file to set runtime values for the following:
Property values (normally set with ct_config or ct_con_props calls)
Server option values (normally set with ct_options calls after a connection is opened)
Server capabilities (normally set with ct_capability calls before a connection is opened)
Debugging options (normally set with ct_debug calls)
Applications that read the configuration file to apply these settings eliminate several calls to ct_con_props or the other routines mentioned above. Another benefit is that the application’s runtime settings are changed without recompiling code.
If there is an external Sybase configuration file, add these sections to enable bcp and isql: [BCP][CTISQL]