Hi, I developed an event sink application using StoreEvents. I tried to deploy it on Microsoft Exchange 2003, but when I try to deploy the event sink on a set of mailboxes I get "access denied". I used the the information from here: http://support.microsoft.com/?kbid=262054 and i created "myuser" member of Administrators, Domain Users, and EXCHANGE_RECOVERY groups (created before). I was able to logon to Exchange machine with this user and to register events only on his account. What rights should this user have?