Standards and platform support

100% managed .NET code with no external dependencies 

  • Rebex WebSocket is written in 100% managed C# code.
  • No external dependencies. It only needs .NET Framework.
  • No open source code used.
  • Fully CLS-compliant.
  • Supports any .NET language (C#, VB.NET, C++/CLI, etc.)
  • Platform-independent code. Same assemblies for both 32-bit and 64-bit applications.

Protocols and RFC specifications 

Rebex WebSocket implements the WebSocket protocol as specified by RFC 6455, and other required protocols and formats. The core functionality consists of the following:

Compatible with third-party implementations 

Rebex WebSocket is compatible with third-party WebSocket implementations and passes the extensive Autobahn Testsuite.

.NET Framework on Windows 

Rebex WebSocket supports the following .NET Framework platforms:

  • .NET Framework 4.8
  • .NET Framework 4.7.x
  • .NET Framework 4.6.x
  • .NET Framework 4.5.x
  • .NET Framework 4.0
  • .NET Framework 3.5 SP1
  • .NET Framework 3.5
  • .NET Framework 3.0
  • .NET Framework 2.0
  • Both 32-bit and 64-bit versions (same DLLs)

Supported IDE versions:

  • Microsoft Visual Studio 2019
  • Microsoft Visual Studio 2017
  • Microsoft Visual Studio 2015
  • Microsoft Visual Studio 2013
  • Microsoft Visual Studio 2012
  • Microsoft Visual Studio 2010
  • Microsoft Visual Studio 2008

Supported Windows versions:

  • Windows 10
  • Windows Server 2019
  • Windows Server 2016
  • Windows 8.1
  • Windows Server 2012 R2
  • Windows Server 2012
  • Windows Server 2008 R2
  • Windows Server 2008
  • Windows 7

Rebex WebSocket is known to work on Windows 8, Windows Vista, Windows XP SP3 and Windows Server 2003 R2. However, these platforms already reached end-of-life, which means we cannot guarantee any kind of support for Rebex WebSocket on these operating systems.

.NET Core 

Rebex WebSocket supports .NET Core platform.

Supported frameworks:

Supported operating systems:

  • Windows 10
  • Windows 8.1
  • Windows 7 (SP1 and higher)
  • Windows Server 2008 R2 (SP1 and higher)
  • Linux (64-bit)
  • macOS (64-bit)

.NET Standard 

Rebex WebSocket supports .NET Standard 1.5/2.0 on .NET Core 2.1 and 2.2. It also supports .NET Standard 2.0 on Mono 5.14 (or higher). Support for .NET Standard 2.0 on Universal Windows Platform (build 16299 or higher) and Xamarin.Mac (version 3.8 or higher) is experimental.

Mono on Linux 

Rebex WebSocket supports Mono 4.x/5.x on Linux and Apple macOS (OS X).

Xamarin.iOS 

  • Visual Studio with Xamarin.iOS 10.3 or later
  • iOS 10 or later

Xamarin.Android 

  • Visual Studio with Xamarin.Android 8.0 or later

Xamarin.Mac 

Rebex WebSocket features experimental support for Xamarin.Mac 3.8 or later via .NET Standard 2.0.

Universal Windows Platform 

Rebex WebSocket features experimental support for Universal Windows Platform (UWP/UAP) applications on Windows 10 via .NET Standard 2.0.

Supported platforms:

  • Windows 10 (version 1709 or higher)
  • Windows 10 IoT (version 1709 or higher)

In order to use Rebex WebSocket on these platforms, make sure to specify at least Windows 10 Fall Creators Update (10.0; Build 16299) in your Universal Windows project.

Legacy platform support 

For details of legacy platforms support see the following articles:

.NET Compact Framework on handhelds and mobiles 

Rebex WebSocket supports Microsoft legacy handheld and mobile platforms.

Supported frameworks:

  • .NET Compact Framework 3.5
  • .NET Compact Framework 3.9

Supported mobile operating systems:

  • Windows CE 5.0, 6.x
  • Pocket PC
  • Windows Mobile
  • Windows Embedded Compact 7
  • Windows Embedded Compact 2013

Supported IDE versions:

  • Microsoft Visual Studio 2008
  • Microsoft Visual Studio 2012
  • Microsoft Visual Studio 2013

XCOPY deployment 

When distributing an application using Rebex WebSocket library, simply copy the following DLL files (.NET assemblies) with your application:

  • Rebex.Common.dll
  • Rebex.Networking.dll
  • Rebex.WebSocket.dll

There is no need to install, configure or distribute anything else to make them work.

Rebex WebSocket license is royalty-free - you can distribute your application to unlimited number of users or computers without any additional fees.