I was wondering if anyone had some experience with hosting WCF services in a Umbraco site. 

I have added a Service folder which I have added to the umbracoReservedUrls in the web.config and put my svc file
in that folder. Calling my service gives this error:

This collection already contains an address with scheme http.  There can be at most one address per scheme in this collection. 
Parameter name: item

Googling this problem suggest adding this to the web.config:

<system.servicemodel>
<servicehostingenvironment>
<baseaddressprefixfilters>
<add prefix="http://www.MyDomainName.com"></add>
</baseaddressprefixfilters>
</servicehostingenvironment>
</system.servicemodel>

This just gives a new authentication problem

Am I following a wrong path or ...

Regards Paul S