System.Composition.Convention by: Microsoft

Provides types that support using Managed Extensibility Framework with a convention-based configuration model. Commonly Used Types: System.Composition.Convention.ConventionBuilder System.Composition.Convention.ExportConventionBuilder System.Composition.Convention.ImportConventionBuilder System.Composition.Convention.PartConventionBuilder System.Composition.Convention.ParameterImportConventionBuilder

System.Diagnostics.DiagnosticSource by: Microsoft

Provides Classes that allow you to decouple code logging rich (unserializable) diagnostics/telemetry (e.g. framework) from code that consumes it (e.g. tools) Commonly Used Types: System.Diagnostics.DiagnosticListener System.Diagnostics.DiagnosticSource

System.Diagnostics.PerformanceCounter by: Microsoft

Provides the System.Diagnostics.PerformanceCounter class, which allows access to Windows performance counters. Commonly Used Types: System.Diagnostics.PerformanceCounter

System.Diagnostics.TextWriterTraceListener by: Microsoft

Provides trace listeners for directing tracing output to a text writer, such as System.IO.StreamWriter, or a stream, such as a System.IO.FileStream. Commonly Used Types: System.Diagnostics.TextWriterTraceListener System.Diagnostics.DelimitedListTraceListener

System.Drawing.Common by: Microsoft

Provides access to GDI+ graphics functionality. Commonly Used Types: System.Drawing.Bitmap System.Drawing.BitmapData System.Drawing.Brush System.Drawing.Font System.Drawing.Graphics System.Drawing.Icon Since .NET 7, non-Windows platforms are not supported, even with the runtime configuration switch. See https://aka.ms/systemdrawingnonwindows for more information.

System.Globalization by: Microsoft

Provides classes that define culture-related information, including language, country/region, calendars in use, format patterns for dates, currency, and numbers, and sort order for strings. Commonly Used Types: System.Globalization.DateTimeFormatInfo System.Globalization.CultureInfo System.Globalization.NumberFormatInfo System.Globalization.CalendarWeekRule System.Globalization.TextInfo System.Globalization.Calendar System.Globalization.CompareInfo System.Globalization.CompareOptions System.Globalization.UnicodeCategory

System.IO.Hashing by: Microsoft

Provides non-cryptographic hash algorithms, such as CRC-32. Commonly Used Types: System.IO.Hashing.Crc32 System.IO.Hashing.XxHash32

System.IO.IsolatedStorage by: Microsoft

Provides classes that allow the creation and use of isolated stores. Commonly Used Types: System.IO.IsolatedStorage.IsolatedStorageFile System.IO.IsolatedStorage.IsolatedStorageFileStream When using NuGet 3.x this package requires at least version 3.4.

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

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.WebSocketProtocol by: Microsoft

System.Net.WebSockets.WebSocketProtocol

System.Numerics.Tensors by: Microsoft

Provides support for operating over tensors.

System.Reflection.MetadataLoadContext by: Microsoft

Provides read-only reflection on assemblies in an isolated context with support for assemblies that target different processor architectures and runtimes. Using MetadataLoadContext enables you to inspect assemblies without loading them into the main execution context. Assemblies in MetadataLoadContext are treated only as metadata, that is, you can read information about their members, but cannot execute any code contained in them.

System.Resources.Extensions by: Microsoft

Provides classes which read and write resources in a format that supports non-primitive objects. Commonly Used Types: System.Resources.Extensions.DeserializingResourceReader System.Resources.Extensions.PreserializedResourceWriter

System.Runtime.Caching by: Microsoft

Provides classes to use caching facilities. Commonly Used Types: System.Runtime.Caching.CacheEntryChangeMonitor System.Runtime.Caching.CacheEntryRemovedArguments System.Runtime.Caching.CacheEntryUpdateArguments System.Runtime.Caching.CacheItem System.Runtime.Caching.CacheItemPolicy System.Runtime.Caching.ChangeMonitor System.Runtime.Caching.FileChangeMonitor System.Runtime.Caching.HostFileChangeMonitor System.Runtime.Caching.MemoryCache System.Runtime.Caching.ObjectCache

System.Security.Cryptography.Pkcs by: Microsoft

Provides support for PKCS and CMS algorithms. Commonly Used Types: System.Security.Cryptography.Pkcs.EnvelopedCms

System.ServiceModel.Primitives by: Microsoft

Provides common Windows Communication Foundation (WCF) types for consuming and communicating with services. Commonly Used Types: System.ServiceModel.ClientBase<TChannel> System.ServiceModel.IClientChannel System.ServiceModel.ICommunicationObject System.ServiceModel.Channels.IChannel System.ServiceModel.IContextChannel System.ServiceModel.IExtensibleObject<T> System.ServiceModel.DataContractFormatAttribute System.ServiceModel.Description.IOperationBehavior System.ServiceModel.Channels.Message System.ServiceModel.FaultException<TDetail>

System.Text.Encoding.CodePages by: Microsoft

Provides support for code-page based encodings, including Windows-1252, Shift-JIS, and GB2312. Commonly Used Types: System.Text.CodePagesEncodingProvider

System.Text.Encodings.Web by: Microsoft

Provides types for encoding and escaping strings for use in JavaScript, HyperText Markup Language (HTML), and uniform resource locators (URL). Commonly Used Types: System.Text.Encodings.Web.HtmlEncoder System.Text.Encodings.Web.UrlEncoder System.Text.Encodings.Web.JavaScriptEncoder

System.Text.Json by: Microsoft

Provides high-performance and low-allocating types that serialize objects to JavaScript Object Notation (JSON) text and deserialize JSON text to objects, with UTF-8 support built-in. Also provides types to read and write JSON text encoded as UTF-8, and to create an in-memory document object model (DOM), that is read-only, for random access of the JSON elements within a structured view of the data. The System.Text.Json library is built-in as part of the shared framework in .NET Runtime. The package can be installed when you need to use it in other target frameworks.