Performed the 4.3 update (won't say upgrade) and did experience similar problems as others in this forum.
My question is specific to the Exchange Services process, I've noticed it now listed as a running application.
I do NOT have an Outlook/Exchange email account on my S3.
It's sucking up about 5MB of space when it runs, not a lot but I'm trying to improve battery life and especially dont need things running that I dont use.
I've tried stopping the service but it keeps coming back.
Any ideas?