Create c# SW add-in

Hi guys,

I'm trying to create a SW Add-In in C#.

Here is my C# code :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swcommands;
using SolidWorks.Interop.swconst;
using SolidWorks.Interop.swpublished;
using SolidWorksTools;
using System.Runtime.InteropServices;




namespace ClassLibrary1_testsw
{
    public class SWIntegration : ISwAddin
    {
        public SldWorks mSWApplication;
        private int mSWCookie;
        
        public bool ConnectToSW(object ThisSW, int Cookie)
        {
            mSWApplication = (SldWorks)ThisSW;
            mSWCookie = Cookie;
            // Set-up add-in call back info
            bool result = mSWApplication.SetAddinCallbackInfo(0, this, Cookie);
            this.UISetup();
            return true;
        }


        public bool DisconnectFromSW()
        {
            this.UITeardown();
            return true;
        }


        private void UISetup()
        {
        }


        private void UITeardown()
        {
        }


        [ComRegisterFunction()]
        private static void ComRegister(Type t)
        {
            string keyPath = String.Format(@"SOFTWARE\solidworks\AddIns\{0:b}", t.GUID);
            using (Microsoft.Win32.RegistryKey rk = Microsoft.Win32.Registry.LocalMachine.CreateSubKey(keyPath))
            {
                rk.SetValue(null, 1); // Load at startup
                rk.SetValue("Title", "My SwAddin"); // Title
                rk.SetValue("Description", "All your pixels are belong to us"); // Description
            }
        }
        [ComUnregisterFunction()]
        private static void ComUnregister(Type t)
        {
            string keyPath = String.Format(@"SOFTWARE\solidworks\AddIns\{0:b}", t.GUID);
            Microsoft.Win32.Registry.LocalMachine.DeleteSubKeyTree(keyPath);
        }




    }
}

The problem is that I can't see anything in my register after having clicked on "build"...

And then after having created this class, how can i create my add-in ?

I'm so lost... Help please

Thanks in advance,

Seb