Your map services should show in Internet Explorer in the path http://SERVER/ArcGIS/rest/servicesIn your app, use a path like @"http://SERVER/ArcGIS/rest/services/Addresses/MapServer"Sorry, the code to load that is here: AGSDynamicMapServiceLayer* layer = [AGSDynamicMapServiceLayer dynamicMapServiceLayerWithURL:[NSURL URLWithString:kLabelsAddressURL]]; layer.visibleLayers = [NSArray arrayWithObjects:[NSNumber numberWithInt:0], nil]; [self.mapView addMapLayer:layer withName:@"Address Labels"];