Do you have any other machine where SEP is installed?
If yes then Nvigate to C:\Windows\system32 folder and look for snmpapi.dll
Copy the snmpapi.dll from a working system to C:\Windows\system32 folder of the machine where you have the issue
Then run a repair for the SEP Client
MCT MCSE-2012 Symantec Technical Specialist (SCTS)
I have tried what you have suggested but I am still having issues with this one SEP Client bringing up the error message
Did you run a repair ?
Yes ran a repair but still showing the same result
Is it happening on one or more computer?
If it is one, Uninstall SEP , Reboot the machine and then install SEP
It was just happening on one PC.
After a reinstall of the client it was fine, I wanted to try and diagnose it but didnt realy have time so just took the easy way out :)