Our Outlook Addin gets no events anymore since we switched from Exchange 2003 to Exchange 2010. Is there a site that explains the facts behind the scenes?
update per 2010-03-18:
Since there are no relevant info's in this thread yet, i refine my question as follows:
What are the key-words to get some relevant matches in a google-search?
Is there anybody how can explain the reason for microsoft to change the protocoll?
Exchange 2010 requires, by default, RPC encryption to be enabled and by default this is disabled in Outlook 2003. You can either disable the requirement for encryption or enable it on you clients. Full details on this and how to resolve it can be found in this KB article.