We need to backup users .pst files. We currently backup user data via Microsoft RoboCopy scripts on a Windows 2008 Standard backup server with a data drive. Users often leave their Outlook/PST files open so the back files as the file is open/in use and the backup fails. We cannot backup at night because users too often forget to leave their PCs turned on.
How can we backup .pst files to our backup server's data drive, remotely/in the background while the users have the files open?