Dllhost.exe COM Surrogate a virus or not?

Hi guys,

dllhost.exe COM Surrogate is a Windows 7 system program. Eats RAM up and causing programs to close due to lack of RAM. It can be turned off via the taskmgr.

Online its said it isnt a virus. But maybe is it a virus acting as a system program? Disguysing?

Anyone with info is appriciated.