protected override object RequestService(Guid serviceGuid)
		{
			if (serviceGuid == typeof(Office.IRibbonExtensibility).GUID)
			{
				return _ribbon ?? (_ribbon = new GnuPGRibbon());
			}

			return base.RequestService(serviceGuid);
		}
        protected override object RequestService(Guid serviceGuid)
        {
            if (serviceGuid == typeof(Office.IRibbonExtensibility).GUID)
            {
                if (ribbon == null)
                    ribbon = new GnuPGRibbon();
                return ribbon;
            }

            return base.RequestService(serviceGuid);
        }