I am running into an 80070005 error when I try to set PR_EFORMS_LOCALE_ID to 1033. This is occurring on a Win8 64 bit client interfacing with an Exchange 2007 server running under Win2008 (Exchange 2007 is up to date on service packs).
I've verified that the user account under which I'm running MFCMAPI.exe is a member of the Exchange Organization Administrators and also Exchange Servers security groups for the server (there's only one). I am running Exchange on my domain controller.
Suggestions?