public override void Execute(object parameter)
 {
     if (extensionManager == null)
     {
         extensionManager = new ExtensionsManager();
         extensionManager.ExtensionsCatalogChanged += extensionManager_ExtensionsCatalogChanged;
     }
     BuilderApplication.Instance.ShowWindow(ESRI.ArcGIS.Mapping.Builder.Resources.Strings.ManageExtensions, extensionManager);
 }
 public override void Execute(object parameter)
 {
     if (extensionManager == null)
     {
         extensionManager = new ExtensionsManager();
         extensionManager.ExtensionsCatalogChanged += extensionManager_ExtensionsCatalogChanged;
     }
     BuilderApplication.Instance.ShowWindow(ESRI.ArcGIS.Mapping.Builder.Resources.Strings.ManageExtensions, extensionManager);
 }