Why would rpcss.exe be running?

[mrmedia]

C:\windows\system32\rpcss.exe

I noticed this was a process running.
It does not normally run for my apps and limited use. ie. 1 type of app

I think it is possible to disable using reg files.

Curious to know if others have noticed it too.
You know, being windows stuff and all, I'm just assuming the worst.

[mrmedia]

Actually i think something is up.

The other process is
C:\windows\system32\winedevice.exe MountMgr
along with
rpcss.exe

Then the app i run hangs.

Anyone got an ideas.