Named Pipeline WCF C# Intra Application Communication Example. Example uses NetNamedPipeBinding Class for communication between Windows Service and Mutable Standard Desktop Applications. This is a good starting point for Windows Service that needs to interact with a Desktop App.
This example is a good starting point for one or more different WPF or WinForms Desktop applications that need to communicate with a Windows Service.
Please note the difference in behavior when applications are "Run as Administrator".
Instructions on debugging a Windows Service are on my Blog
http://blog.michaelkappel.com/post/9610733474/debugging-a-windows-service-application-that-is-in-a