As the Backup Exec is growing more complex and requires more resources to run I guess soon the Media server installation support on WinXP Professional will also be withdrawn from the next version. Also in order to backup the Workstations Symantec recommend to have BE installed on a Server OS and need to backup using the Remote agent installed on the workstations. Also if only wanted to backup the user data files and not the complete workstation its recommended to use BE DLO (Desktop and Laptop option).(You get 5 DLO users license free with your Backup exec, have to purchase more licenses if need additional user license)