Problem

-- When trying to register a web service containing some net named pipe binding (with address beginning with net.pipe://), API Manager returns a 400 status with the error:

WSDL contains malformed binding

Resolution

- This happened because net.pipe protocol is not manager by API Manager.

- In order to import this web service, you can register it in Policy Studio without selecting the net named pipe binding, deploy the configuration, then import it from topology in API Manager.