我的XP系统35个进程,请懂行的指点一下哪些进程是不必要的,可以关掉?

taskmgr.exe
Dot1Client.exe
ALG.EXE
SCARDSVR.exe
SPOOLSV.EXE
TTraveler.exe
WDFMGR.EXE
SVCHOST.EXE
ScanFrm.exe
RavTask.exe
360tray.exe
GFNEXSrv.exe
ADSMSrv.exe
MDM.EXE
RsTray.exe
RavMonD.exe
safeboxTray.exe
SVCHOST.EXE
SVCHOST.EXE
ATI2EVXX.EXE
SVCHOST.EXE
CCenter.exe
SVCHOST.EXE
SVCHOST.EXE
ATI2EVXX.EXE
SVCHOST.EXE
LSASS.EXE
SERVICES.EXE
WINLOGON.EXE
CSRSS.EXE
LSSrvc.exe
SMSS.EXE
ASGHOST.EXE
EXPLORER.EXE
rsnetsvr.exe
AGRSMSVC.EXE
CTFMON.EXE
System
System Idle P...

希望各位不吝指教,感激不尽!~~

用户系统信息:Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; TencentTraveler 4.0; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; CIBA; .NET CLR 1.1.4322)