I have a file on a network storage. That file gets locked when its in use by somebody else, except by one person. I had about 5 people test it, and only one user does not get the File is locked, read-only copy error. That one person is able to make changes while the file is opened else where. That file is very sensitive and needs to be locked whenever its in use.
Can anyone point me to the right direction to make sure the file is locked too everyone while its in use??