Originally Posted by Cskwared
I tried it again just incase I left iTunes open while I was modding outlook, but got the same results. You are talking about under the add-ins tab in the trust center, then at the bottom "Manage: COM add-ins" then click go right? Then the pop up with all of the add-ins and uncheck everything but iTunes?
This sync issues was happeneing for awhile, then went away, and now that I've upgraded to firmware 1.1.4 on my iPhone it started throwing these errors again.

yep. tools->trust center->add-ins
you will see a list of add-ins. itune outlook admin should be the only one under active application add-ins,(exit everything related to outlook and restart outlook after made the change) before you start itune and sync.
this is the only thing I did and after this it works.
my problem was: every time when itune said sync is done, everything got transfered from computer to iphone except calendar, which had nothing from computer.