System.IO.FileSystem 4.3.0 Prefix Reserved

Requires NuGet 2.12 or higher.

Install-Package System.IO.FileSystem -Version 4.3.0
dotnet add package System.IO.FileSystem --version 4.3.0
<PackageReference Include="System.IO.FileSystem" Version="4.3.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add System.IO.FileSystem --version 4.3.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: System.IO.FileSystem, 4.3.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install System.IO.FileSystem as a Cake Addin
#addin nuget:?package=System.IO.FileSystem&version=4.3.0

// Install System.IO.FileSystem as a Cake Tool
#tool nuget:?package=System.IO.FileSystem&version=4.3.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Provides types that allow reading and writing to files and types that provide basic file and directory support.

Commonly Used Types:

When using NuGet 3.x this package requires at least version 3.4.

NuGet packages (370)

Showing the top 5 NuGet packages that depend on System.IO.FileSystem:

Package Downloads

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.


A set of standard .NET APIs that are prescribed to be used and supported together. 18a36291e48808fa7ef2d00a764ceb1ec95645a5 When using NuGet 3.x this package requires at least version 3.4.


Provides provides a fast, non-cached, forward-only way to read and write Extensible Markup Language (XML) data. Commonly Used Types: System.Xml.XmlNodeType System.Xml.XmlException System.Xml.XmlReader System.Xml.XmlWriter System.Xml.IXmlLineInfo System.Xml.XmlNameTable System.Xml.IXmlNamespaceResolver System.Xml.XmlNamespaceManager System.Xml.XmlQualifiedName When using NuGet 3.x this package requires at least version 3.4.


Provides types for reading, exporting and verifying Authenticode X.509 v3 certificates. These certificates are signed with a private key that uniquely and positively identifies the holder of the certificate. Commonly Used Types: System.Security.Cryptography.X509Certificates.X509Certificate2 System.Security.Cryptography.X509Certificates.X509Certificate System.Security.Cryptography.X509Certificates.X509ContentType System.Security.Cryptography.X509Certificates.StoreLocation System.Security.Cryptography.X509Certificates.StoreName System.Security.Cryptography.X509Certificates.X509FindType System.Security.Cryptography.X509Certificates.X509ChainStatus System.Security.Cryptography.X509Certificates.X509Certificate2Collection System.Security.Cryptography.X509Certificates.X509EnhancedKeyUsageExtension System.Security.Cryptography.X509Certificates.X509Chain When using NuGet 3.x this package requires at least version 3.4.


Abstractions for making code that uses file system and environment testable.

GitHub repositories (241)

Showing the top 5 popular GitHub repositories that depend on System.IO.FileSystem:

Repository Stars
The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
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An advanced, composable, functional reactive model-view-viewmodel framework for all .NET platforms that is inspired by functional reactive programming. ReactiveUI allows you to abstract mutable state away from your user interfaces, express the idea around a feature in one readable place and improve the testability of your application.
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Version Downloads Last updated
4.3.0 273,887,344 11/15/2016
4.3.0-preview1-24530-04 282,529 10/24/2016
4.0.1 234,877,182 6/27/2016
4.0.1-rc2-24027 8,024,353 5/16/2016
4.0.1-beta-23516 492,838 11/18/2015
4.0.1-beta-23409 397,621 10/15/2015
4.0.1-beta-23225 233,257 9/1/2015
4.0.0 3,767,928 7/29/2015
4.0.0-beta-23109 110,950 7/27/2015
4.0.0-beta-23019 58,471 6/30/2015
4.0.0-beta-22816 67,946 4/24/2015
4.0.0-beta-22605 21,251 2/13/2015
4.0.0-beta-22416 13,556 1/16/2015
4.0.0-beta-22231 34,939 11/11/2014