File and Stream I/OText File I/OBinary File I/OCollectionsHash TablesResizable ArraysThe WordCount ApplicationRegular ExpressionsSplitting StringsSearching StringsReplacing StringsInternet Classes HttpWebRequest and HttpWebResponseThe System.Web.Mail NamespaceData Access DataReadersInserts, Updates, and Deletes DataSets and DataAdaptersReflectionRetrieving Information About Assemblies, Modules, and TypesCustom AttributesDynamically Loading Types (Late Binding)The FCL in Review