Originally posted by charles_scott
One reason they would take a lot of memory is if you keep the PC on for extended periods of time.
That really hasnt been an issue since Windows 95/98. A reboot will do you good, occasionally, though.
SVCHOST is an important system process, and usually has a few to several instances of it running at a time. SVCHOST should only be in the system32 folder, if I remember correctly. I had some spyware a while back that added another SVCHOST to my processes and found out that the one in my c:\windows folder was the culprit. Don't delete it yet, but I would definately do some research on it. You know the drill.