Relax, please. Completely normal. SVCHOST is a big windows process which runs a whole range of other services.
Each instance runs one or more services.
Get yourself ProcessExplorer from http://technet.microsoft.com/en-us/sysinte...s/bb896653.aspx
, substitute it for task manager forever.
Right click each instance of svchost and it will show you the hierarchy and all the jobs svchost is doing.
So long as it's in system32 folder and the date of the file makes sense (last Windows updates for instance) and your antivirus isn't objecting that svchost been taken over, you're ok.
Touch any of those instances and our Windows might not even boot. It's that important.
Good tutorial is on this site http://www.bleepingcomputer.com/tutorials/list-services-running-under-svchost.exe-process/
Edited by tos226, 20 March 2009 - 08:51 PM.