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I’m running a WCF service, and calling ServiceHost’s Open() method will raise an AddressAlreadyInUseException if the adress is ..err .. already in use !
Is there a way to test whether the address is available without raising an exception?
The addresses being used by the ServiceHost are listed in ServiceHost.BaseAddresses. You could potentially check there, prior to making your call.
Alternatively, just try to open the service, and catch and handle the AddressAlreadyInUseException gracefully. If you receive that, you know it’s in use, and you can move on to your secondary logic.