Which windows service will be running on my machine if I installed SDE

Question

Hi,

                 I want to know whether the MSDE is already installed or not on my system using a C# program. For this I have a method which will take the service name as argument and returns whether that servce is found or not. Now I want to know which windows service (service name) will be running on my machine if the MSDE is already installed. Please help me out.