Exchange 2007 has rebranded rpc/https which is now called Outlook Anywhere and has even made some slight modification from RTM to Exchange 2007 SP1. + http://msexchangeteam.com/archive/2007/11/08/447484.aspx
Whilst it is never advisable to disable DataStore alerts, some customers will insist. Please be sure to remove the action in the alert rather than disabling the alert itself otherwise you lose the fancy status column: