Create a new c# empty project. Click on the project and go to Properties change the output type to Windows Application (This will remove the console).
Create a new class example: Example.cs
Write the static entry point eg:
public class Example
{
static void Main(string[] args)
{
}
}
Insert your code in the Main routine.
This will create a process that contains no console/window/service.
I'm guessing this is what you want.