Can you get all registered users from OpenFire

I tried using XEP-0133 to get a list of registered users, but I get an item not found message. Does openfire not implement this feature?

I still have not found the method to query the server for all registered users. I see XEP-0133 is not supported. Is there any message OpenFire excepts that will give me this information? Short of writing a plug-in?