when, how a wcf service is start

A WCF service is not started as such like a windows service or a windows application. A WCF service merely consists of a class, whose methods are called by the service host to do stuff. If you need to instantiate anything in a service, I would think that you would need to create a constructor for your service class and do the instantiating there(I have never done this, so do not know if this would be considered good practice).

[Edit] I have just done some research and found that you can create a static constructor that only gets called the first time the class is used, something like this

public class MyService : IMyService
   {
       //standard constructor
       public MyService()
       { }
       //Static constructor
       static MyService()
       { }
   }

that way the stuff you need to do beforehand will only get done once. [\Edit]


Hope this helps

the Static constructor is worked, thank you guys!