Originally Posted by sems
It turns out our Exchange 2003 box is shutdown as of last week. :(, so I can't test it right now. But when we first started the migration, I remember doing lots of tests, including calendar, as there were reported issues by RIM (this was before 4.1.3, we were running 4.1.2). And everything was fine.
I tested the calendar request to a user on Exchange 2007 and it is fine, the request came in to the handheld, I accepted it on the handheld and on the handheld and desktop I can see the meeting in the Calendar. And like I said on BES we are running ESM 2003, not CDO & MAPI clients for 2007. I wonder with a fix/patch the CDO and MAPI dll versions changed. CDO.dll is 6.5.7638.2 and MAPI.dll is 1.0.2536.0.
It sounds like someone may have installed the updated files without notifying you. Please do a full scan for every file called cdo.dll on the BES server, you may possibly find an updated version that is registered.