WCF Behaviors. Wildcard name or empty string name.

Few days ago I found a WCF behavior configuration section similar to this:

<behaviors>
    <endpointBehaviors>
        <behavior name="*">
     <webHttp/>
        </behavior>
    </endpointBehaviors>
</behaviors>

Does name="*" make any sense? .net 4 comes with great impovements in default configurations. And if one wants to specify a behavior for all endpoints then behavior with an empty name (or even without the name attribute at all) is used. So what about wildcards? Usually an asterics is used for exactly the same purpose. What is the difference then? This question marked as answered actually doesn't contain the answer.

First of all we can use an asterics as an argument during channel factory creation.

var factory = new ChannelFactory<IMyService>("*");

In this case first endpoint configuration is taken. The feature is described in more details here.

It has nothing to do with behaviors.

In the configuration above the "*" symbol acts as a regular behaviorConfiguration name. You can reference it in any of our endpoints.

<endpoint 
    address="http://localhost:9001/http/" 
    contract="Shared.IMyService" 
    binding="basicHttpBinding" 
    behaviorConfiguration="*"/>

But if you want apply a behavior to all of your enpoints just use an empty name for it.

<behavior name="">
    <webHttp/>
</behavior>

Or even

<behavior>
    <webHttp/>
</behavior>

You can read more about WCF configuration defaults in this article.