squirrel.windows by: GitHub

An installation and update framework for Windows applications

SshNet.Security.Cryptography by: Renci

Cryptographic functions for .NET

StackExchange.Redis by: Stack Exchange, Inc., Marc Gravell, Nick Craver

High performance Redis client, incorporating both synchronous and asynchronous usage.

StackExchange.Redis.Extensions.Core by: imperugo

StackExchange.Redis.Extensions is a library that extends StackExchange.Redis allowing you a set of functionality needed by common applications. To store complex data It requires one of the following implementations: - StackExchange.Redis.Extensions.Newtonsoft - StackExchange.Redis.Extensions.Jil

Stateless by: Stateless Contributors

Create state machines and lightweight state machine-based workflows directly in .NET code

Stripe.net by: Jayme Davis

A .net client for http://stripe.com

StrongNamer by: Daniel Plaisted

Strong Namer will automatically add strong names to referenced assemblies which do not already have a strong name.

StyleCop.Analyzers by: Sam Harwell et. al.

An implementation of StyleCop's rules using Roslyn analyzers and code fixes

StyleCop.Analyzers.Unstable by: Sam Harwell et. al.

An implementation of StyleCop's rules using Roslyn analyzers and code fixes

StyleCop.MSBuild by: StyleCop contributors, Chris Dahlberg

Integrates StyleCop "Classic" source code analysis into the build process of C# projects to enforce a set of style and consistency rules.

Stylet by: Antony Male

A very lightweight but powerful ViewModel-First MVVM framework for WPF, inspired by Caliburn.Micro. Comes with its own IoC container.

SubSonic by: Rob Conery

SubSonic is A Super High-fidelity Batman Utility Belt that works up your Data Access (using Linq in 3.0), throws in some much-needed utility functions, and generally speeds along your dev cycle.

Superpower by: Datalust, Superpower Contributors, Sprache Contributors

A parser combinator library for C#

SuperSocket by: Kerry Jiang

SuperSocket is a light weight, cross platform and extensible socket server application framework. You can use it to build a server side socket application (like game server, GPS server, industrial control system, data acquisition server etc) easily without thinking about how to use socket, how to maintain the socket connections and how socket works.

SuperSocket.WebSocket by: Kerry Jiang

WebSocket server implementation base on SuperSocket. It is just the same codebase with SuperWebSocket but has different assembly name and namespace.

Svg by: mrbean-bremen, davescriven, jvenema, owaits, ddpruitt, Ralf1108, Tebjan Halm, and others

Public fork of the C# SVG rendering library on codeplex: https://svg.codeplex.com/ This started out as a minor modification to enable the writing of proper SVG strings. But now after almost two years we have so many fixes and improvements that we decided to share our current codebase to the public in order to improve it even further. So please feel free to fork it and open pull requests for any fix, improvement or feature you add. License: Microsoft Public License: https://svg.codeplex.com/license

Swashbuckle.AspNetCore by: domaindrivendev

Swagger tools for documenting APIs built on ASP.NET Core

SwissEphNet by: Yan Grenier

Swiss Ephemeris .Net portage

System.AppContext by: Microsoft

Provides the System.AppContext class, which allows access to the BaseDirectory property and other application specific data. Commonly Used Types: System.AppContext

System.Collections by: Microsoft

Provides classes that define generic collections, which allow developers to create strongly typed collections that provide better type safety and performance than non-generic strongly typed collections. Commonly Used Types: System.Collections.Generic.List<T> System.Collections.Generic.Dictionary<TKey, TValue> System.Collections.Generic.Queue<T> System.Collections.Generic.Stack<T> System.Collections.Generic.HashSet<T> System.Collections.Generic.LinkedList<T> System.Collections.Generic.EqualityComparer<T> System.Collections.Generic.Comparer<T> System.Collections.Generic.SortedDictionary<TKey, TValue>