SVCHOST.EXE

[Loki]

Quote:svchost.exe is a system process belonging to the Microsoft Windows Operating System which handles processes executed from DLLs. This program is important for the stable and secure running of your computer and should not be terminated.

Just because my explanations can be a bit vague sometimes I included the above quote. Basically you need it to allow the .dlls for the game to work properly.