Installing SEP v11 maintenance release 2 or earlier, on a Citrix server could bring it to a grinding hault when users start logging onto the Citrix server. You will notice multiple instances of smcgui.exe and ccapp.exe in the task manager -> processes.
Note: That this issue was resolve with SEP v11 MR3
To resolve this problem you need to perform the follow registry optimisations:
HKLM\SOFTWARE\Symantec\Symantec Endpoint Protection\SMC\LaunchSmcGui = 0
Locate the ccApp entry in the following registry key and delete it :
For 32 bit OS :-
For 64 bit OS :-