public static void OnRegister(Type t)
        {
            // See http://www.codeproject.com/Articles/839585/Solid-Edge-ST-AddIn-Architecture-Overview#Registration for registration details.
            // The following code helps write registry entries that Solid Edge needs to identify an addin. You can omit this code and
            // user installer logic if you'd like. This is simply here to help.

            try
            {
                var settings = new RegistrationSettings(t);

                settings.Enabled = true;
                //settings.Environments.Add(SolidEdgeSDK.EnvironmentCategories.Application);
                settings.Environments.Add(SolidEdgeSDK.EnvironmentCategories.AllDocumentEnvrionments);

                // See http://msdn.microsoft.com/en-us/goglobal/bb964664.aspx for LCID details.
                var englishCulture = CultureInfo.GetCultureInfo(1033);

                // Title & Summary are Locale specific.
                settings.Titles.Add(englishCulture, "SolidEdge.Community.TestAddIn");
                settings.Summaries.Add(englishCulture, "Solid Edge Addin in .NET 4.0.");

                var spanishCultere = CultureInfo.GetCultureInfo(3082);
                settings.Titles.Add(spanishCultere, "SolidEdge.Community.TestAddIn");
                settings.Summaries.Add(spanishCultere, "Solid Edge Addin in .NET 4.0.");

                // Optionally, you can add additional locales.
                var germanCultere = CultureInfo.GetCultureInfo(1031);
                settings.Titles.Add(germanCultere, "SolidEdge.Community.TestAddIn");
                settings.Summaries.Add(germanCultere, "Solid Edge Addin in .NET 4.0.");

                MyAddIn.Register(settings);
            }
            catch (System.Exception ex)
            {
                MessageBox.Show(ex.StackTrace, ex.Message);
            }
        }
 public static void OnUnregister(Type t)
 {
     MyAddIn.Unregister(t);
 }