What does this file, svchost.exe, exactly do? Whenever I try to access internet, my COMODO firewall shows it trying to access the network. Is it some windows-file-turned-trojan/worm? What is its exact purpose? I felt that sometime I'm not able to access net after disabling it in COMODO. Can u detail me on its purpose? And if it's necessary? It can be a trojan, as indicated by some webpages i got online, but it is in the C:\WINDOWS\system32 folder itself, which makes it a legal file. Also the virus is of the name scvhost.exe, so I'm not under risk by svchost. Did anyone face similar problem? Is it needed for networking? Why does my internet play spoilsport sometimes when i disable it? I'm a DATAONE user with some services disabled/in manual via services.msc. Is it guilty? Which service is related to svchost? Help me someone. URGENT.