This issue was driving me mad, followed al the hints from "Google" but no solution at all. So your on your own. Running OS windows 2008. Application Backup-Exec 12.5 The account involved in this issue has given logon as a service rights. Again the same troubles. mmm the next thing, creating a group policy DLG_ExecuteBatchTasks. [...]
NT Backup on is not longer there. It has a new name called "Windows Server Backup". To install Windows Server Backup. Start>>Admintools>>server manager.From here click on Features. Add Feature "Windows Server Backup Features". To Start Programs > Administrative Tools > Windows server backup. Thats it, mmm yeh only disk imaging.