RSS feed error and howto fix

I have gotten a lot of emails regarding errors when people tried to install the RSS feed for Microsoft Dynamics CRM 3.0. I have been reading through some internal newsgroups and found the thing that is causing errors.

If your CRM web site is on port 5555 (or another one distinct from 80) you need to modify the URLs mentionned in the web services proxy classes :

crmservice.cs
metadataservice.cs