System.Net.Http.WinHttpHandler 10.0.0-preview.5.25277.114

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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Version Downloads Last updated
10.0.1 2 17.12.2025
10.0.0 2 18.11.2025
10.0.0-rc.2.25502.107 4 22.10.2025
10.0.0-rc.1.25451.107 4 13.09.2025
10.0.0-preview.7.25380.108 6 21.08.2025
10.0.0-preview.6.25358.103 7 22.07.2025
10.0.0-preview.5.25277.114 12 09.06.2025
10.0.0-preview.4.25258.110 8 27.05.2025
10.0.0-preview.3.25171.5 10 17.05.2025
10.0.0-preview.2.25163.2 10 18.05.2025
10.0.0-preview.1.25080.5 10 13.03.2025
9.0.11 3 18.11.2025
9.0.10 3 24.10.2025
9.0.9 6 13.09.2025
9.0.8 6 21.08.2025
9.0.7 5 29.07.2025
9.0.6 10 16.06.2025
9.0.5 12 21.05.2025
9.0.4 11 18.05.2025
9.0.3 12 12.03.2025
9.0.2 10 12.03.2025
9.0.1 13 08.02.2025
9.0.0 14 28.01.2025
9.0.0-rc.2.24473.5 11 18.02.2025
9.0.0-rc.1.24431.7 12 30.01.2025
9.0.0-preview.7.24405.7 11 03.02.2025
9.0.0-preview.6.24327.7 13 18.02.2025
9.0.0-preview.5.24306.7 14 13.03.2025
9.0.0-preview.4.24266.19 11 31.01.2025
9.0.0-preview.3.24172.9 11 30.01.2025
9.0.0-preview.2.24128.5 14 30.01.2025
9.0.0-preview.1.24080.9 9 16.01.2025
8.0.3 12 20.05.2025
8.0.2 13 12.03.2025
8.0.1 14 24.09.2024
8.0.0 15 05.11.2024
8.0.0-rc.2.23479.6 13 03.10.2024
8.0.0-rc.1.23419.4 12 06.02.2025
8.0.0-preview.7.23375.6 12 18.02.2025
8.0.0-preview.6.23329.7 12 18.02.2025
8.0.0-preview.5.23280.8 12 06.02.2025
8.0.0-preview.4.23259.5 12 19.02.2025
8.0.0-preview.3.23174.8 13 24.01.2025
8.0.0-preview.2.23128.3 11 18.02.2025
8.0.0-preview.1.23110.8 17 18.02.2025
7.0.0 16 10.01.2025
7.0.0-rc.2.22472.3 11 18.02.2025
7.0.0-rc.1.22426.10 13 18.02.2025
7.0.0-preview.7.22375.6 13 18.02.2025
7.0.0-preview.6.22324.4 11 18.02.2025
7.0.0-preview.5.22301.12 13 03.02.2025
7.0.0-preview.4.22229.4 11 23.01.2025
7.0.0-preview.3.22175.4 12 18.02.2025
7.0.0-preview.2.22152.2 15 17.01.2025
7.0.0-preview.1.22076.8 14 18.02.2025
6.0.1 11 30.01.2025
6.0.0 11 24.01.2025
6.0.0-rc.2.21480.5 11 18.02.2025
6.0.0-rc.1.21451.13 12 12.01.2025
6.0.0-preview.7.21377.19 13 27.10.2024
6.0.0-preview.6.21352.12 17 18.02.2025
6.0.0-preview.5.21301.5 12 18.02.2025
6.0.0-preview.4.21253.7 12 18.02.2025
6.0.0-preview.3.21201.4 12 11.10.2024
6.0.0-preview.2.21154.6 13 18.02.2025
6.0.0-preview.1.21102.12 12 19.02.2025
5.0.0 15 19.02.2025
5.0.0-rc.2.20475.5 11 18.02.2025
5.0.0-rc.1.20451.14 13 15.01.2025
5.0.0-preview.8.20407.11 14 13.03.2025
5.0.0-preview.7.20364.11 12 17.02.2025
5.0.0-preview.6.20305.6 14 19.02.2025
5.0.0-preview.5.20278.1 12 30.01.2025
5.0.0-preview.4.20251.6 11 19.02.2025
5.0.0-preview.3.20214.6 13 30.01.2025
5.0.0-preview.2.20160.6 14 18.02.2025
5.0.0-preview.1.20120.5 11 18.02.2025
4.7.2 13 02.10.2024
4.7.0 11 19.02.2025
4.7.0-preview3.19551.4 15 29.01.2025
4.7.0-preview2.19523.17 12 18.02.2025
4.7.0-preview1.19504.10 12 19.02.2025
4.6.0 14 02.10.2024
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4.6.0-preview9.19416.11 11 30.01.2025
4.6.0-preview8.19405.3 12 18.02.2025
4.6.0-preview7.19362.9 11 17.02.2025
4.6.0-preview6.19303.8 12 03.02.2025
4.6.0-preview6.19264.9 11 19.02.2025
4.6.0-preview5.19224.8 13 30.01.2025
4.6.0-preview4.19212.13 14 02.10.2024
4.6.0-preview3.19128.7 8 13.03.2025
4.6.0-preview.19073.11 11 18.02.2025
4.6.0-preview.18571.3 13 19.02.2025
4.5.4 15 10.01.2025
4.5.3 14 02.10.2024
4.5.2 13 02.10.2024
4.5.2-servicing-27114-05 12 18.02.2025
4.5.1 13 02.10.2024
4.5.0 13 02.10.2024
4.5.0-rc1 11 30.01.2025
4.5.0-preview2-26406-04 11 19.02.2025
4.5.0-preview1-26216-02 11 23.01.2025
4.4.0 15 02.10.2024
4.4.0-preview2-25405-01 11 18.02.2025
4.4.0-preview1-25305-02 11 18.02.2025
4.3.3 14 02.10.2024
4.3.2 12 02.10.2024
4.3.1 11 23.01.2025
4.3.0 12 02.10.2024
4.3.0-preview1-24530-04 10 19.02.2025
4.0.4 12 02.10.2024
4.0.3 12 02.10.2024
4.0.2 12 19.02.2025
4.0.1 14 11.10.2024
4.0.0 12 02.10.2024
4.0.0-rc2-24027 12 23.01.2025
4.0.0-beta-23516 14 02.10.2024
4.0.0-beta-23409 13 03.10.2024
4.0.0-beta-23225 14 18.02.2025
4.0.0-beta-23123 13 18.02.2025
4.0.0-beta-23109 12 29.01.2025
4.0.0-beta-23019 11 19.02.2025
4.0.0-beta-22816 14 02.10.2024
4.0.0-beta-22605 12 16.02.2025
4.0.0-beta-22416 13 29.01.2025
4.0.0-beta-22231 13 11.10.2024