System.Net.Http.WinHttpHandler 10.0.0-preview.6.25358.103

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 Framework 4.6.2

.NET 8.0

  • No dependencies.

.NET 9.0

  • No dependencies.

.NET 10.0

  • No dependencies.

.NET Standard 2.0

  • No dependencies.

Version Downloads Last updated
10.0.0-preview.6.25358.103 30 07/22/2025
10.0.0-preview.5.25277.114 27 08/10/2025
10.0.0-preview.4.25258.110 26 08/10/2025
10.0.0-preview.3.25171.5 30 07/11/2025
10.0.0-preview.2.25163.2 24 08/10/2025
10.0.0-preview.1.25080.5 25 08/10/2025
9.0.8 20 08/10/2025
9.0.7 21 07/19/2025
9.0.6 24 08/10/2025
9.0.5 24 08/10/2025
9.0.4 25 08/10/2025
9.0.3 24 08/10/2025
9.0.2 23 08/10/2025
9.0.1 20 07/12/2025
9.0.0 21 08/10/2025
9.0.0-rc.2.24473.5 22 08/10/2025
9.0.0-rc.1.24431.7 23 08/08/2025
9.0.0-preview.7.24405.7 20 08/10/2025
9.0.0-preview.6.24327.7 22 08/10/2025
9.0.0-preview.5.24306.7 20 08/10/2025
9.0.0-preview.4.24266.19 19 08/10/2025
9.0.0-preview.3.24172.9 22 08/10/2025
9.0.0-preview.2.24128.5 20 08/10/2025
9.0.0-preview.1.24080.9 20 08/10/2025
8.0.3 28 08/10/2025
8.0.2 21 08/10/2025
8.0.1 21 08/10/2025
8.0.0 26 08/10/2025
8.0.0-rc.2.23479.6 24 08/10/2025
8.0.0-rc.1.23419.4 20 08/10/2025
8.0.0-preview.7.23375.6 27 07/10/2025
8.0.0-preview.6.23329.7 28 08/10/2025
8.0.0-preview.5.23280.8 23 08/10/2025
8.0.0-preview.4.23259.5 26 08/10/2025
8.0.0-preview.3.23174.8 23 07/11/2025
8.0.0-preview.2.23128.3 28 08/10/2025
8.0.0-preview.1.23110.8 26 08/10/2025
7.0.0 20 08/10/2025
7.0.0-rc.2.22472.3 19 08/10/2025
7.0.0-rc.1.22426.10 20 08/10/2025
7.0.0-preview.7.22375.6 21 08/10/2025
7.0.0-preview.6.22324.4 23 08/10/2025
7.0.0-preview.5.22301.12 21 08/10/2025
7.0.0-preview.4.22229.4 20 08/10/2025
7.0.0-preview.3.22175.4 23 07/10/2025
7.0.0-preview.2.22152.2 23 08/10/2025
7.0.0-preview.1.22076.8 20 07/11/2025
6.0.1 23 07/10/2025
6.0.0 25 08/10/2025
6.0.0-rc.2.21480.5 19 08/10/2025
6.0.0-rc.1.21451.13 21 07/10/2025
6.0.0-preview.7.21377.19 23 08/10/2025
6.0.0-preview.6.21352.12 25 08/10/2025
6.0.0-preview.5.21301.5 22 08/10/2025
6.0.0-preview.4.21253.7 19 08/10/2025
6.0.0-preview.3.21201.4 19 07/11/2025
6.0.0-preview.2.21154.6 20 08/10/2025
6.0.0-preview.1.21102.12 26 08/10/2025
5.0.0 21 08/10/2025
5.0.0-rc.2.20475.5 20 08/10/2025
5.0.0-rc.1.20451.14 20 08/10/2025
5.0.0-preview.8.20407.11 24 08/10/2025
5.0.0-preview.7.20364.11 22 08/08/2025
5.0.0-preview.6.20305.6 20 07/12/2025
5.0.0-preview.5.20278.1 20 08/10/2025
5.0.0-preview.4.20251.6 22 08/10/2025
5.0.0-preview.3.20214.6 21 08/10/2025
5.0.0-preview.2.20160.6 22 07/12/2025
5.0.0-preview.1.20120.5 24 08/10/2025
4.7.2 22 07/11/2025
4.7.0 21 08/10/2025
4.7.0-preview3.19551.4 21 08/10/2025
4.7.0-preview2.19523.17 22 08/10/2025
4.7.0-preview1.19504.10 28 08/10/2025
4.6.0 26 08/10/2025
4.6.0-rc1.19456.4 26 08/10/2025
4.6.0-preview9.19421.4 25 08/10/2025
4.6.0-preview9.19416.11 28 08/10/2025
4.6.0-preview8.19405.3 24 08/10/2025
4.6.0-preview7.19362.9 22 08/10/2025
4.6.0-preview6.19303.8 21 08/10/2025
4.6.0-preview6.19264.9 27 07/10/2025
4.6.0-preview5.19224.8 24 08/10/2025
4.6.0-preview4.19212.13 25 08/10/2025
4.6.0-preview3.19128.7 25 08/10/2025
4.6.0-preview.19073.11 25 08/10/2025
4.6.0-preview.18571.3 26 08/10/2025
4.5.4 21 08/10/2025
4.5.3 21 08/10/2025
4.5.2 19 08/10/2025
4.5.2-servicing-27114-05 19 08/11/2025
4.5.1 23 07/10/2025
4.5.0 22 08/10/2025
4.5.0-rc1 21 08/10/2025
4.5.0-preview2-26406-04 21 08/10/2025
4.5.0-preview1-26216-02 28 07/11/2025
4.4.0 23 08/10/2025
4.4.0-preview2-25405-01 21 08/10/2025
4.4.0-preview1-25305-02 21 08/10/2025
4.3.3 22 08/10/2025
4.3.2 22 08/10/2025
4.3.1 21 08/10/2025
4.3.0 22 07/10/2025
4.3.0-preview1-24530-04 22 08/10/2025
4.0.4 21 08/10/2025
4.0.3 20 08/10/2025
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4.0.1 20 08/10/2025
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4.0.0-rc2-24027 21 08/10/2025
4.0.0-beta-23516 20 08/10/2025
4.0.0-beta-23409 22 08/09/2025
4.0.0-beta-23225 22 08/09/2025
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4.0.0-beta-23109 22 08/09/2025
4.0.0-beta-23019 26 08/09/2025
4.0.0-beta-22816 20 08/09/2025
4.0.0-beta-22605 21 08/09/2025
4.0.0-beta-22416 25 08/09/2025
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