You can execute below script to get Symantec NETBACKUP version and patch information.
set nocount on CREATE TABLE #OUTPUT( [SQLInstanceName] [nvarchar](128) NULL, [WindowsServerName] [varchar](30) NULL, [NetBackupClientVersion] [varchar](255) NULL, [NetBackupPatchVersion] [varchar](255) NULL, [NetbackupStatusCheck] [varchar](28) NULL ) declare @regkeyval varchar(20), @value varchar(255), @rc int exec @rc=master.dbo.xp_regread @rootkey= 'HKEY_LOCAL_MACHINE', @key='SOFTWARE\Veritas\NetBackup\CurrentVersion\', @value_name='VERSION', @regkeyval=@value output set @value =isnull(@value,'-') declare @Pvalue varchar(255) exec @rc=master.dbo.xp_regread @rootkey= 'HKEY_LOCAL_MACHINE', @key='SOFTWARE\Veritas\Patches\NetBackup\', @value_name='PatchLevel', @regkeyval=@Pvalue output set @Pvalue =isnull(@Pvalue,'-') if @value <> '-' insert into #OUTPUT(SQLInstanceName,WindowsServerName,NetBackupClientVersion,NetBackupPatchVersion,NetbackupStatusCheck) select @@servername as SQLInstanceName ,case serverproperty('IsClustered') when 1 then cast(serverproperty('computernamephysicalnetbios') as varchar) else cast(serverproperty('machinename') as varchar) end as WindowsServerName ,@value as NetBackupClientVersion ,@Pvalue as NetBackupPatchVersion ,'NetBkup is installed' as NetbackupStatusCheck else insert into #OUTPUT(SQLInstanceName,WindowsServerName,NetbackupStatusCheck,NetBackupClientVersion,NetBackupPatchVersion) select @@servername as SQLInstanceName ,case serverproperty('IsClustered') when 1 then cast(serverproperty('computernamephysicalnetbios') as varchar) else cast(serverproperty('machinename') as varchar) end as WindowsServerName ,'NetBkup nt installed' as NetbackupStatusCheck ,'0' as NetBackupClientVersion ,'0' as NetBackupPatchVersion select * from #OUTPUT