ASP.NET

public class Service : System.Web.Services.WebService
{
    UpdateManager updateManager;
    string key = "update";
    	
    public Service()
    {        
        if (Application[key] != null)
        {
            updateManager = (UpdateManager)Application[key];						
        }
        else
        {
            updateManager = new UpdateManager();
            Application[key] = updateManager;
			
			//This method will establish a TCP connection with a remote server. 			
			//In server, sometimes I am finding more than one TCP connections from this webservice.
			
			//Objects placed in the Application State will be persisted till the application ends
			//so there should be one connection to the server.
			updateManager.Start();
        }        
    }
	
	[WebMethod(Description = "Get the Current Quote")]
	public string GetUpdate()
	{
		return updateManager.GetUpdate();
	}	
}