I do not need a solution (just sharing information)
Just trying to setup a EV 10.0.3 environment and ran into a Deployment scanner issues.
Deployment Scanner didn't report that Outlook 2007 SP2 hotfix KB2475891 wan't installed and therefore let us install EV. However when starting the archiving and journaling tasks they were failing to start and logged errors in event log saying that Outlook 2007 SP2 hotfix is not installed. The deployment scanner should have really picked up the issue in first place!!!