AddField | Adds a new CustomizationTypedField. | 
  RemoveField | Removes the CustomizationTypedField specified by FieldName from this type. | 
  EditingControl | The editing control CLSID for COM or the fully qualified assembly name for .NET. | 
  Field | Gets the CustomizationTypedField specified by FieldName. | 
  Fields | The list of CustomizationTypedField objects for this type. | 
  Icon | The bitmap stream for type icon. | 
  ID | The CustomizationType ID. | 
  Name | The CustomizationType name. |