thats the file for accessing symantec components so  if you have norton anti virus i thiink its causing it as it might have been deleted. so just reinstall  norton antivirus or uninstall symantec and norton  from add and remove programs if you have any other antivirus. i think this will fix it. or you can uncheck the symantec (if you see it checked in startup list ) on msconfig.

To do so

you can type msconfig after opening run from start. and go to startup

Start>Run>type msconfig>Startup