C# User mode program to Windows Service comms?

[Jon]

I've written a C# Windows Service and a C# program that runs in normal standard user mode. I need the user program to communicate with the service, then the service does something, and returns the result to the user program. I need to get a rough idea of the APIs/functions I need to research. It will just be local on a machine. I saw this: http://msdn.microsoft.com/en-us/library/system.servicemodel.netnamedpipebinding.aspx - is that on the right track?

[Valik]

Named pipes are almost always the way to go with IPC. IIRC CreateProcessWithLogonW() uses pipes to communicate with the Secondary Logon service. Or something like that.

[Jon]

There#s native classes in .NET 3.5 to do the named pipes stuff that look perfect for what I want. Cheers.