 SocketFlags Enumeration AddressFamily Enumeration IOControlCode Enumeration IPPacketInformation Structure IPProtectionLevel Enumeration IPv6MulticastOption Class LingerOption Class MulticastOption Class NetworkStream Class ProtocolFamily Enumeration ProtocolType Enumeration SelectMode Enumeration SendPacketsElement Class Socket Class SocketAsyncEventArgs Class SocketAsyncOperation Enumeration SocketError Enumeration SocketException Class SocketFlags Enumeration SocketInformation Structure SocketInformationOptions Enumeration SocketOptionLevel Enumeration SocketOptionName Enumeration SocketShutdown Enumeration SocketType Enumeration TcpClient Class TcpListener Class TransmitFileOptions Enumeration UdpClient Class TOCPublic Enumeration SocketFlags 