When I try to unclaim and claim a Task from another user in WorldServer, I get an error message saying that
The Task cannot be claimed because the file is locked by another user.
If I go to that file in Explorer and try to unlock it, I cannot because I have no permission to do so.
A similar error might appear if you are a project manager who has permission to cancel a project.
Which permissions need to be set in the respective User Type to be able to unlock files in Explorer?