System.Net.Http.WinHttpHandler 10.0.0-rc.1.25451.107

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

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.NET 10.0

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.NET Standard 2.0

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Version Downloads Last updated
10.0.0-rc.1.25451.107 10 09/15/2025
10.0.0-preview.7.25380.108 10 09/04/2025
10.0.0-preview.6.25358.103 10 09/04/2025
10.0.0-preview.5.25277.114 10 09/04/2025
10.0.0-preview.4.25258.110 10 06/02/2025
10.0.0-preview.3.25171.5 11 06/02/2025
10.0.0-preview.2.25163.2 12 03/29/2025
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9.0.0-rc.2.24473.5 11 03/29/2025
9.0.0-rc.1.24431.7 12 03/29/2025
9.0.0-preview.7.24405.7 11 03/29/2025
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8.0.0-rc.1.23419.4 12 03/29/2025
8.0.0-preview.7.23375.6 11 03/29/2025
8.0.0-preview.6.23329.7 11 03/29/2025
8.0.0-preview.5.23280.8 11 03/29/2025
8.0.0-preview.4.23259.5 14 02/21/2025
8.0.0-preview.3.23174.8 11 03/29/2025
8.0.0-preview.2.23128.3 9 03/29/2025
8.0.0-preview.1.23110.8 11 03/29/2025
7.0.0 16 02/21/2025
7.0.0-rc.2.22472.3 12 03/29/2025
7.0.0-rc.1.22426.10 12 03/29/2025
7.0.0-preview.7.22375.6 11 03/29/2025
7.0.0-preview.6.22324.4 11 03/29/2025
7.0.0-preview.5.22301.12 11 03/29/2025
7.0.0-preview.4.22229.4 12 03/29/2025
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6.0.1 15 02/21/2025
6.0.0 13 02/21/2025
6.0.0-rc.2.21480.5 12 03/29/2025
6.0.0-rc.1.21451.13 12 03/29/2025
6.0.0-preview.7.21377.19 12 03/29/2025
6.0.0-preview.6.21352.12 12 03/29/2025
6.0.0-preview.5.21301.5 11 03/29/2025
6.0.0-preview.4.21253.7 10 03/29/2025
6.0.0-preview.3.21201.4 11 03/29/2025
6.0.0-preview.2.21154.6 11 03/29/2025
6.0.0-preview.1.21102.12 12 02/21/2025
5.0.0 13 02/21/2025
5.0.0-rc.2.20475.5 12 03/29/2025
5.0.0-rc.1.20451.14 12 03/29/2025
5.0.0-preview.8.20407.11 12 03/29/2025
5.0.0-preview.7.20364.11 12 03/29/2025
5.0.0-preview.6.20305.6 12 02/22/2025
5.0.0-preview.5.20278.1 11 03/29/2025
5.0.0-preview.4.20251.6 11 03/29/2025
5.0.0-preview.3.20214.6 11 03/29/2025
5.0.0-preview.2.20160.6 11 03/29/2025
5.0.0-preview.1.20120.5 12 02/21/2025
4.7.2 13 02/21/2025
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4.6.0 13 02/21/2025
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4.6.0-preview7.19362.9 12 03/29/2025
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4.6.0-preview5.19224.8 12 03/29/2025
4.6.0-preview4.19212.13 12 03/29/2025
4.6.0-preview3.19128.7 12 03/29/2025
4.6.0-preview.19073.11 12 03/29/2025
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4.5.4 14 02/21/2025
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4.5.0-rc1 12 02/21/2025
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4.5.0-preview1-26216-02 11 03/29/2025
4.4.0 66 09/16/2024
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4.3.3 13 02/21/2025
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4.3.0 14 02/21/2025
4.3.0-preview1-24530-04 14 02/21/2025
4.0.4 14 02/21/2025
4.0.3 12 02/21/2025
4.0.2 14 02/21/2025
4.0.1 14 02/21/2025
4.0.0 13 02/21/2025
4.0.0-rc2-24027 12 03/29/2025
4.0.0-beta-23516 12 03/29/2025
4.0.0-beta-23409 13 03/29/2025
4.0.0-beta-23225 13 03/29/2025
4.0.0-beta-23123 14 03/29/2025
4.0.0-beta-23109 13 03/29/2025
4.0.0-beta-23019 13 03/29/2025
4.0.0-beta-22816 11 03/29/2025
4.0.0-beta-22605 13 03/29/2025
4.0.0-beta-22416 13 03/29/2025
4.0.0-beta-22231 14 03/29/2025