Netbackup 7.6 Antivirus Exclusion

I am trying antivirus (McAfee) exclusion for netbackup 7.6 for Windows client & I am following the below article.

http://www.symantec.com/business/support/index?pag...

If I define the exlcusion folder (without defining any processes, default profile) "C:\ProgramFiles\VERITAS\<Netbackup>\online_util\fi_cntl" the performance is good.

But if I have to define the processes and exlcusion folder (Low Risk Profile) it doesn't seems to work. I have added bpbkar32.exe, bpfis.exe under low risk profile processes and the path as "C:\ProgramFiles\VERITAS\Netbackup"

Any advice?