SSE Symantec Backup Exec 2010 SSE Symantec Endpoint Protection 12.1 SSE Symantec Enterprise Vault 10 SSE+ Symantec Endpoint Protection 12.1 (August 2011) STS Symantec Endpoint Protection 12.1 STS Symantec NetBackup 7.0 for Windows SSE Symantec Backup Exec 2012 SSE Symantec NetBackup 7.5 SSE+ Symantec NetBackup 7.5 STS Symantec Backup Exec 2012