System.ObjectModel by: Microsoft

Provides types and interfaces that allow the creation of observable types that provide notifications to clients when changes are made to it. Commonly Used Types: System.ComponentModel.INotifyPropertyChanged System.Collections.ObjectModel.ObservableCollection<T> System.ComponentModel.PropertyChangedEventHandler System.Windows.Input.ICommand System.Collections.Specialized.INotifyCollectionChanged System.Collections.Specialized.NotifyCollectionChangedEventArgs System.Collections.Specialized.NotifyCollectionChangedEventHandler System.Collections.ObjectModel.KeyedCollection<TKey, TItem> System.ComponentModel.PropertyChangedEventArgs System.Collections.ObjectModel.ReadOnlyDictionary<TKey, TValue> When using NuGet 3.x this package requires at least version 3.4.

System.Net.NetworkInformation by: Microsoft

Provides access to network traffic data, network address information, and notification of address changes for the local computer. Commonly Used Types: System.Net.NetworkInformation.NetworkInterface System.Net.NetworkInformation.NetworkInformationException System.Net.NetworkInformation.NetworkAddressChangedEventHandler System.Net.NetworkInformation.NetworkInterfaceType System.Net.NetworkInformation.OperationalStatus System.Net.NetworkInformation.IPGlobalProperties System.Net.NetworkInformation.UnicastIPAddressInformation System.Net.NetworkInformation.UnicastIPAddressInformationCollection System.Net.NetworkInformation.PhysicalAddress System.Net.NetworkInformation.TcpConnectionInformation When using NuGet 3.x this package requires at least version 3.4.

System.Net.WebSockets by: Microsoft

Provides the System.Net.WebSockets.WebSocket abstract class and related types to allow developers to implement the WebSocket protocol (RFC 6455). WebSockets provide full-duplex communication over a single TCP connection. Commonly Used Types: System.Net.WebSockets.WebSocket System.Net.WebSockets.WebSocketContext System.Net.WebSockets.WebSocketException When using NuGet 3.x this package requires at least version 3.4.

System.Net.WebHeaderCollection by: Microsoft

Contains types that represent HTTP request and response headers. This library is used with classes such as System.Net.HttpWebRequest and System.Net.HttpWebResponse and allows developers to query/edit header names/values. Commonly Used Types: System.Net.HttpRequestHeader System.Net.HttpResponseHeader System.Net.WebHeaderCollection When using NuGet 3.x this package requires at least version 3.4.

System.Net.Sockets by: Microsoft

Provides classes such as Socket, TcpClient and UdpClient, which enable developers to send and receive data over the network. Commonly Used Types: System.Net.Sockets.Socket System.Net.Sockets.SocketAsyncEventArgs System.Net.Sockets.LingerOption System.Net.Sockets.SocketAsyncOperation System.Net.Sockets.ProtocolType System.Net.Sockets.NetworkStream System.Net.Sockets.TcpClient System.Net.Sockets.SocketType System.Net.Sockets.UdpClient System.Net.Sockets.SocketShutdown When using NuGet 3.x this package requires at least version 3.4.

System.Net.Http.Json by: Microsoft

Provides extension methods for System.Net.Http.HttpClient and System.Net.Http.HttpContent that perform automatic serialization and deserialization using System.Text.Json. Commonly Used Types: System.Net.Http.Json.HttpClientJsonExtensions System.Net.Http.Json.HttpContentJsonExtensions System.Net.Http.Json.JsonContent

System.Memory by: Microsoft

System.Memory

System.Private.DataContractSerialization by: Microsoft

Internal implementation package not meant for direct consumption. Please do not reference directly. Provides implementation of System.Runtime.Serialization packages. When using NuGet 3.x this package requires at least version 3.4.

System.Numerics.Vectors by: Microsoft

System.Numerics.Vectors

System.Net.WebSockets.Client by: Microsoft

Provides the System.Net.WebSockets.ClientWebSocket class, which implements the client role of the WebSockets protocol (RFC 6455). Commonly Used Types: System.Net.WebSockets.ClientWebSocket When using NuGet 3.x this package requires at least version 3.4.

System.Net.NameResolution by: Microsoft

Provides the System.Net.Dns class, which enables developers to perform simple domain name resolution. Commonly Used Types: System.Net.Dns System.Net.IPHostEntry When using NuGet 3.x this package requires at least version 3.4.

System.Net.Requests by: Microsoft

Provides older classes (such as HttpWebRequest and HttpWebResponse) for sending HTTP requests and receiving HTTP responses from a resource identified by a URI. Developers should prefer the classes in the System.Net.Http package. Commonly Used Types: System.Net.HttpWebRequest System.Net.HttpWebResponse System.Net.HttpRequestHeader System.Net.WebException System.Net.WebExceptionStatus System.Net.WebRequest System.Net.WebResponse When using NuGet 3.x this package requires at least version 3.4.

System.Memory.Data by: Microsoft

A lightweight abstraction for a payload of bytes. Provides methods for converting between strings, streams, JSON, and bytes. Commonly Used Types: System.BinaryData

System.Net.WebSockets.Client.Managed by: Microsoft Matthew Little

Microsoft's managed implementation of System.Net.WebSockets.ClientWebSocket tweaked for use on Windows 7 and .NET 4.5

System.Net.Http by: Microsoft

Provides a programming interface for modern HTTP applications, including HTTP client components that allow applications to consume web services over HTTP and HTTP components that can be used by both clients and servers for parsing HTTP headers. Commonly Used Types: System.Net.Http.HttpResponseMessage System.Net.Http.DelegatingHandler System.Net.Http.HttpRequestException System.Net.Http.HttpClient System.Net.Http.MultipartContent System.Net.Http.Headers.HttpContentHeaders System.Net.Http.HttpClientHandler System.Net.Http.StreamContent System.Net.Http.FormUrlEncodedContent System.Net.Http.HttpMessageHandler When using NuGet 3.x this package requires at least version 3.4.

System.Net.WebSockets.WebSocketProtocol by: Microsoft

Provides the WebSocketProtocol class, which allows creating a websocket from a connected stream using WebSocketsProtocol.CreateFromConnectedStream. Commonly Used Types: System.Net.WebSockets.WebSocketProtocol

System.Net.Primitives by: Microsoft

Provides common types for network-based libraries, including System.Net.IPAddress, System.Net.IPEndPoint, and System.Net.CookieContainer. Commonly Used Types: System.Net.HttpStatusCode System.Net.Sockets.SocketError System.Net.Cookie System.Net.Sockets.SocketException System.Net.IPEndPoint System.Net.ICredentials System.Net.NetworkCredential System.Net.IPAddress System.Net.CookieCollection System.Net.CookieContainer When using NuGet 3.x this package requires at least version 3.4.

System.Net.Security by: Microsoft

Provides types, such as System.Net.Security.SslStream, that uses SSL/TLS protocols to provide secure network communication between client and server endpoints. Commonly Used Types: System.Net.Security.SslStream System.Net.Security.ExtendedProtectionPolicy When using NuGet 3.x this package requires at least version 3.4.

System.Net.Http.WinHttpHandler by: Microsoft

Provides a message handler for HttpClient based on the WinHTTP interface of Windows. While similar to HttpClientHandler, it provides developers more granular control over the application's HTTP communication than the HttpClientHandler. Commonly Used Types: System.Net.Http.WinHttpHandler

System.Management by: Microsoft

Provides access to a rich set of management information and management events about the system, devices, and applications instrumented to the Windows Management Instrumentation (WMI) infrastructure. Commonly Used Types: System.Management.ManagementClass System.Management.ManagementObject System.Management.SelectQuery