SymProxySvc.exe
(Symantec)
Symantec Transparent Proxy Server. Although we have not yet been able to obtain full details about this task, we feel from its name that this is probably the most crucial component of Norton Internet Security and Norton Personal Firewall certainly if you stop it neither works properly, or at all. SYMPROXYSVC is a transparent task under Windows 95/98/ME, visible only through a program like Starter.
Recommendation :
Leave alone Essential. Note, however, that SYMPROXYSVC, due to bugs in script blocking, has been known to consume up to 99% of CPU usage, thereby grinding the PC to a halt. Other problems, including "Invalid Page Faults" , involve access to specific or secure sites. All of these should be resolved if you do a manual LiveUpdate in order to pick up all the latest software updates for your Norton firewall.