[ATL COM ] How to build a "out-of-process" COM server by using VS2008 ATL wizard

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Dear All,
I found some good tutorials of COM server creating but most of them are in DLL which is in-process.
I am looking for a good tutorial of "out-of-process" COM server building.
Does anyone know any article refer to this?

I study Windows MobilityCenter extension recently.
And the sample code is a out-of-process COM server(because it is a EXE file)--if I was wrong,please correct me.Thanks
I found the ATL wizard of VS2008 has two EXE options which is Service and Executable.
But I barely don't know how it(MobilityCenter) comes?
Does anyone can show me a path?

I really apreciate those article that make me learn something from it.
Thanks :)