svchost.exe can run any .dll process. We'll have to find out which are the processes running under that svchost.exe.
Get Process Explorer
and look for this particular svchost.exe - best by looking into the CPU column. Then either hover over that one or even better look into the properties of that svchost.exe. Under the services tab you should see something like the picture (could be less or more processes). Open the little window such that all processes are visible and make a snip picture like mine. Post that here and we'll have a look.