System.IO.FileSystem.Watcher 4.3.0 The ID prefix of this package has been reserved for one of the owners of this package by Prefix Reserved

.NET Standard 1.3 .NET Framework 4.6

Requires NuGet 2.12 or higher.

Install-Package System.IO.FileSystem.Watcher -Version 4.3.0
dotnet add package System.IO.FileSystem.Watcher --version 4.3.0
<PackageReference Include="System.IO.FileSystem.Watcher" 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.Watcher --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.Watcher, 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.Watcher as a Cake Addin
#addin nuget:?package=System.IO.FileSystem.Watcher&version=4.3.0

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

Provides the System.IO.FileSystemWather class, which listens to the file system change notifications and raises events when a directory, or a file in a directory, changes.

Commonly Used Types:

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

Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows
.NET Core netcoreapp1.0 netcoreapp1.1 netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard1.3 netstandard1.4 netstandard1.5 netstandard1.6 netstandard2.0 netstandard2.1
.NET Framework net46 net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid monoandroid10
MonoMac monomac
MonoTouch monotouch monotouch10
Tizen tizen30 tizen40 tizen60
Universal Windows Platform netcore50 uap uap10.0
Xamarin.iOS xamarinios xamarinios10
Xamarin.Mac xamarinmac xamarinmac20
Xamarin.TVOS xamarintvos xamarintvos10
Xamarin.WatchOS xamarinwatchos xamarinwatchos10
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (56)

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

Package Downloads
NLog The ID prefix of this package has been reserved for one of the owners of this package by

NLog is a logging platform for .NET with rich log routing and management capabilities. NLog supports traditional logging, structured logging and the combination of both. Supported platforms: - .NET 5 and 6 - .NET Core 1, 2 and 3 - .NET Standard 1.3+ and 2.0+ - .NET Framework 3.5 - 4.8 - Xamarin Android + iOS (.NET Standard) - Mono 4 For ASP.NET Core, check:


log4net is a tool to help the programmer output log statements to a variety of output targets. In case of problems with an application, it is helpful to enable logging so that the problem can be located. With log4net it is possible to enable logging at runtime without modifying the application binary. The log4net package is designed so that log statements can remain in shipped code without incurring a high performance cost. It follows that the speed of logging (or rather not logging) is crucial. At the same time, log output can be so voluminous that it quickly becomes overwhelming. One of the distinctive features of log4net is the notion of hierarchical loggers. Using these loggers it is possible to selectively control which log statements are output at arbitrary granularity. log4net is designed with two distinct goals in mind: speed and flexibility


JSPool facilitates easy integration of JavaScript scripting into a .NET application in a scalable and performant manner. It does so by creating a pool of engines that can be reused multiple times, making it easy to use JavaScript libraries that have long initialisation times without having to create a new engine every time. See for usage instructions.

NHibernateProfiler.Appender The ID prefix of this package has been reserved for one of the owners of this package by

NHibernate Profiler is a real-time visual debugger allowing a development team to gain valuable insight and perspective into their usage of NHibernate. The product is architected with input coming from many top industry leaders within the NHibernate community. Alerts are presented in a concise code-review manner indicating patterns of misuse by your application. To streamline your efforts to correct the misuse, we provide links to the problematic code section that triggered the alert. We provide a 30 day trial to download and see for yourself, the value you will receive with your purchase of NHibernate Profiler. This package contains the NHibernate Profiler's Appender only.

Microsoft.AspNet.FileProviders.Physical The ID prefix of this package has been reserved for one of the owners of this package by

Implementation of ASP.NET 5 file provider abstractions for physical files.

GitHub repositories (15)

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

Repository Stars
NLog - Advanced and Structured Logging for Various .NET Platforms
An extensible framework to audit executing operations in .NET and .NET Core.
MOVED: Please see the new repo at
A cross-platform C# editor based on Roslyn and AvalonEdit
The IoT Edge OSS project
Version Downloads Last updated
4.3.0 29,604,374 11/15/2016
4.3.0-preview1-24530-04 72,682 10/24/2016
4.0.0 130,361,678 6/27/2016
4.0.0-rc2-24027 8,838,003 5/16/2016
4.0.0-beta-23516 322,695 11/18/2015
4.0.0-beta-23409 365,911 10/15/2015
4.0.0-beta-23225 53,509 9/2/2015
4.0.0-beta-23123 2,945 7/29/2015
4.0.0-beta-23109 45,122 7/27/2015
4.0.0-beta-23019 42,605 6/30/2015
4.0.0-beta-22816 46,889 4/24/2015
4.0.0-beta-22605 18,563 2/13/2015
4.0.0-beta-22416 5,143 1/16/2015
4.0.0-beta-22231 8,511 11/11/2014