The MozyPro has two different types of licenses Desktop and Server. The MozyPro server license offers all the features of the desktop license, plus these additional features:
In essense, a MozyPro Desktop License can only backup files stored locally on the machine where installed. Note this is just files and not additional meta data such as the registry or system state. A MozyPro Server License supports these additional features as well as backing up files anywhere on the network. As long as a network share exists it can be backed up over the network via a MozyPro Server License. Be aware this requires any workstation hosting network shares intended for backup be powered on and not off or in sleep mode.
Additionally be aware that any Server version of Microsoft Windows or Apple Mac OS must have purchased a MozyPro Server License even if there's no intention to backup network shares, Exchange, Active Directory, etc. The installer detects the Server version and will only permits MozyPro Server License on Server Operating Systems. The inverse, however, is not true. MozyPro Server Licenses may be installed on desktop Operating Systems and may be used to backup network shares, the registry, and sytem state.