There is a calendar in public folders that I cannot access. A new person was hired and they want to add this person as an author for the calendar. Normally, I would log into outlook as administrator and am able to add or change permissions in any calendar or folder. I even tried to create a copy of the calendar, save it to my local outlook folder, change permissions and re-copy it back to it's original location and remove the original existing calendar. However; I could not rename or delete the original calendar because I did not have the correct rights. Is there anyway to change the permissions on this calendar with someone that has author rights? Or, can I change rights or permissions or even delete it with admin rights through a cmdlet or something?