[elbutre]

hi

i am running bes 5.0.3 and need to upgrade my mapi and cdo.dll files

found this excellent article
KB15779-How to install or upgrade the Microsoft Exchange Server MAPI Client and Collaboration Data Objects 1.2.1

it does not however tell me if i should upgrade the standby unit first (following all the steps including re-creating the mapi profille) and once done to failover and then do the primary

i cannot remember if the mapi profile is a bes-ha setup or whether you need to do this on each bes server (primary and failover one)

would anyone know how to go about this? many thanks

[freakinvibe]

The Mapi Profile is stored on each server, so you have to re-create on each server.

In my experience, it doesn't matter which server you upgrade first, but I would start with the Standby and then fail-over. If everything works, do the second server, if not fail-back.