To remove a service, you can use DirectConnect Manager or you can use sp_dropservice.
For instructions on how to use DirectConnect Manager to remove a service, go to the DirectConnect Manager online Help, and select Managing Access Service | Removing a Service.
If you are connected directly to DirectConnect for Oracle, use the following syntax:
exec sp_dropservice service_name
or, if you are connected through Adaptive Server:
DCServer... sp_dropservice service_name
These commands remove an existing service from the DirectConnect for Oracle and delete the service entry from the configuration file.