Outlook 2010 and NIS 21.6.0.32

I've been using Norton products since 1999 and have decided to not renew. Each version brings new problems, too many to list here. The last issue is I can no longer use Norton Antivirus with Outlook 2010. With the Norton add-In enabled not only is Outlook excessively slow (launch - very SLOW, send, receive) but it resets all my Outlook categories to the 6 default Outlook color categories (all my custom categories are gone). This impacts everything I do, all my categorized emails, tasks, contacts and calendar items.