We've just started getting some user logging onto their systems coming up with the error "Unable to start processing services. The attempt to log onto the Microsoft Exchange Server computer has failed".
We've deleted their outlook profile and recreated from scratch - also deleted their roaming profile completely. Still get the same error. There are no relevant items in the event logs on these computers.
The only item in Knowledgebase that mentions a similar issue is Q244385 refering to Outlook 2000 rather than Outlook XP. This suggests deleting corrupted Offitems.log and Outitems.log. Neither of these files appear on the computer even with Show hidden files switch on.