Hello,
The best way to Export the jobs and all the settings is as follows:
1 : Stop all the BE 11d Services, even the SQL Service for Backup Exec.
2 : Go to the Install folder of BE (C:\Program files\Symantec\Backup Exec)
3 : Copy the DATA and the CATALOGS folders on a safe location.
4 : Start the SQL Service.
5 : You can procede to upgrade to 12.5 without starting other Backup Exec Services.
If anything goes wrong in the upgrade, we have backups of jobs, selections list, catalogs for Backup Exec 11d