Originally Posted by greywolfe
(copied from your exchange server).
as I've found out recently, the CDO.dll has to be atleast equal to or greater than the version of the file on the Exchange server. i installed BES 4.0 SP2 on a W2K3 server with ESM 2003 SP1, whereas the Exchange servers are Exchange 2000 SP3. per RIM, the CDO.dll can be greater on the BES, as its backwards compatible with previous versions (not sure about all the way down to Exchange 5.5, though).