# Working in the WS Binding Page

The Web Service Client Binding Extension page appears in the Web deployment descriptor editor, only when you have already defined a web service. You can use this page to:

- add or remove a web service to a client binding
- view service reference details, including the deployed WSDL file
- add or remove a port qualified name binding
- specify setting for the selected port qualified name binding
- add or remove default mappings
- add or remove parameters for the selected service reference
- modify the security configuration for generating request messages
- modify the security configuration for consuming response messages
- add or remove parameters of the selected port qualified name binding

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