System.Net.Http.WinHttpHandler 11.0.0-rc.1.26425.128

About

This package provides an HttpMessageHandler implementation backed by Windows HTTP Services (WinHTTP). While the use of the default HttpClientHandler is highly recommended for applications targeting modern .NET, WinHttpHandler might help migration scenarios by providing an alternative HTTP backend for Windows that works consistently accross .NET Framework and modern .NET.

Key Features

  • Enables sending asynchronous HTTP requests with HttpClient on Windows.
  • Handles authentication and credentials.
  • Exposes a subset of WinHTTP options as C# properties on WinHttpHandler.
  • Use custom proxy.
  • Handle cookies.

How to Use

using System.Net;

using WinHttpHandler handler = new()
{
    ServerCredentials = new NetworkCredential("usr", "pwd")
};

using HttpClient client = new(handler);
using HttpRequestMessage request = new(HttpMethod.Get, "https://httpbin.org/basic-auth/usr/pwd");
using HttpResponseMessage response = await client.SendAsync(request);

Console.WriteLine($"Status: {response.StatusCode}");
if (response.IsSuccessStatusCode)
{
    string content = await response.Content.ReadAsStringAsync();
    Console.WriteLine(content);
}

Main Types

The main types provided by this library are:

  • System.Net.Http.WinHttpHandler

Additional Documentation

Feedback & Contributing

System.Net.Http.WinHttpHandler is released as open source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.

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.NET 10.0

  • No dependencies.

.NET 11.0

  • No dependencies.

.NET Framework 4.6.2

.NET Standard 2.0

  • No dependencies.

Version Downloads Last updated
11.0.0-rc.1.26425.128 11 09/10/2026
11.0.0-preview.7.26381.103 11 08/12/2026
11.0.0-preview.6.26359.118 29 07/14/2026
11.0.0-preview.5.26302.115 30 06/09/2026
11.0.0-preview.4.26230.115 30 05/13/2026
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8.0.0-preview.6.23329.7 141 07/19/2024
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5.0.0-preview.2.20160.6 149 07/19/2024
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4.6.0-preview5.19224.8 152 07/19/2024
4.6.0-preview4.19212.13 128 07/19/2024
4.6.0-preview3.19128.7 167 07/19/2024
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