很不错的参考资料：http://www.gisall.com/html/32/7232-1306.html
http://gis.stackexchange.com/questions/17472/connecting-to-arcgis-server-with-iis-7-5-arcobjects-com
http://resources.esri.com/help/9.3/ArcGISServer/adf/dotnet/developer/ArcGIS/ArcObjects/connect_gis_server.htm