Question : ActiveX can't create MAPI Session with Exchange 5.5

Using a form within Outlook to call the Global Address List on Exchange 5.5 results in following message:
ActiveX component can't create object: 'MAPI.Session'

This happens only on some machines while on other machines it works fine.

Answer : ActiveX can't create MAPI Session with Exchange 5.5

It sounds like CDO is not installed on that machine.  In Outlook 2000, CDO is not installed by default.  You have to do a custom installation and select CDO to be installed.  Reinstall Outlook and select Add additional components, then select CDO to be run from My Computer.

--PatriciaC