Answered
I am getting the error "unable to open secured message" in Acrobat 8.1.2 when trying to run the auto archive utility.
I am using Outlook 2007, XP SP2, Cached Exchange Mode is OFF, and the messages are not encrypted in any way.
There are about 600 messages in the folder, Acrobat is able to archive the first 250 then fails on the rest and throws the above error. Please help, thanks!