I have a webservice with several stubbed out methods and severl
implemented methods.  We are releasing to prod with a beta version
allowing customer to use the implemented methods but I would like to
hide the stubbed out methods (and some implemented methods we don't
want seen) from the wsdl.  But I would like this to be done from a
config file so when we do want to release the other implemented methods
there is no recompiling needed.

- Putting them in another asmx files is not an option.
- Setting up authorization to limit use is already implemented, I just
don't want the methods seen.

Is it possible to create a custom attribute which performs the same
functionality (exposing the method in a webservice) as [WebMethod]?

Thank you