It's under OSGeo.MapGuide.ObjectModels.Common): https://github.com/jumpinjackie/mapguide-maestro/blob/7d8f5e32e29995a5a201da1c5e4ba6c31803cebc/OSGeo.MapGuide.ObjectModels/Common/ResourceItems.cs#L28 - Jackie -- Sent from: http://osgeo-org.1560.x6.nabble.com/MapGuide-Users-f4182607.html