System.Net.Http.WinHttpHandler 9.0.15

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.

Showing the top 20 packages that depend on System.Net.Http.WinHttpHandler.

Packages Downloads
Grpc.Net.Client
.NET client for gRPC
1,128
Grpc.Net.Client
.NET client for gRPC
49
Grpc.Net.Client
.NET client for gRPC
25
Grpc.Net.Client
.NET client for gRPC
24
Grpc.Net.Client
.NET client for gRPC
23
Grpc.Net.Client
.NET client for gRPC
22
Grpc.Net.Client
.NET client for gRPC
21
Microsoft.AspNet.Authentication.OAuth
ASP.NET 5 middleware that enables an application to support any standard OAuth 2.0 authentication workflow.
20
Grpc.Net.Client
.NET client for gRPC
20
Grpc.Net.Client
.NET client for gRPC
19
Grpc.Net.Client
.NET client for gRPC
18
Grpc.Net.Client
.NET client for gRPC
16
System.Private.ServiceModel
Internal implementation package not meant for direct consumption. Please do not reference directly. Provides implementation of System.ServiceModel packages. \r\n TFS ID: 1599443, GitHub SHA: https://github.com/dotnet/corefx/tree/eede273a4dfabcea608621f5e1bbf8ad00584cfb
16

.NET Framework 4.6.2

.NET 8.0

  • No dependencies.

.NET 9.0

  • No dependencies.

.NET Standard 2.0

  • No dependencies.

Version Downloads Last updated
11.0.0-preview.3.26207.106 6 04/15/2026
11.0.0-preview.2.26159.112 12 03/11/2026
11.0.0-preview.1.26104.118 13 02/14/2026
10.0.7 5 04/22/2026
10.0.6 5 04/15/2026
10.0.5 9 03/13/2026
10.0.4 11 03/11/2026
10.0.3 15 02/14/2026
10.0.2 22 01/15/2026
10.0.1 21 12/10/2025
10.0.0 16 12/12/2025
10.0.0-rc.2.25502.107 14 12/12/2025
10.0.0-rc.1.25451.107 19 12/12/2025
10.0.0-preview.7.25380.108 15 12/20/2025
10.0.0-preview.6.25358.103 12 12/20/2025
10.0.0-preview.5.25277.114 15 12/11/2025
10.0.0-preview.4.25258.110 18 12/11/2025
10.0.0-preview.3.25171.5 15 12/18/2025
10.0.0-preview.2.25163.2 11 12/15/2025
10.0.0-preview.1.25080.5 15 12/18/2025
9.0.15 6 04/15/2026
9.0.14 12 03/11/2026
9.0.13 14 02/14/2026
9.0.12 16 01/15/2026
9.0.11 14 12/13/2025
9.0.10 19 12/10/2025
9.0.9 17 12/13/2025
9.0.8 14 12/11/2025
9.0.7 15 12/10/2025
9.0.6 13 12/10/2025
9.0.5 12 12/18/2025
9.0.4 14 12/18/2025
9.0.3 11 12/14/2025
9.0.2 14 12/18/2025
9.0.1 11 12/20/2025
9.0.0 17 12/13/2025
9.0.0-rc.2.24473.5 16 12/10/2025
9.0.0-rc.1.24431.7 18 12/10/2025
9.0.0-preview.7.24405.7 20 12/10/2025
9.0.0-preview.6.24327.7 20 12/10/2025
9.0.0-preview.5.24306.7 20 12/10/2025
9.0.0-preview.4.24266.19 17 12/13/2025
9.0.0-preview.3.24172.9 15 12/10/2025
9.0.0-preview.2.24128.5 14 12/10/2025
9.0.0-preview.1.24080.9 12 12/10/2025
8.0.3 17 12/10/2025
8.0.2 13 12/12/2025
8.0.1 18 12/12/2025
8.0.0 14 12/12/2025
8.0.0-rc.2.23479.6 12 12/10/2025
8.0.0-rc.1.23419.4 19 12/10/2025
8.0.0-preview.7.23375.6 17 12/10/2025
8.0.0-preview.6.23329.7 12 12/10/2025
8.0.0-preview.5.23280.8 16 12/10/2025
8.0.0-preview.4.23259.5 17 12/10/2025
8.0.0-preview.3.23174.8 18 12/10/2025
8.0.0-preview.2.23128.3 18 12/10/2025
8.0.0-preview.1.23110.8 18 12/10/2025
7.0.0 13 12/12/2025
7.0.0-rc.2.22472.3 15 12/10/2025
7.0.0-rc.1.22426.10 17 12/12/2025
7.0.0-preview.7.22375.6 15 12/10/2025
7.0.0-preview.6.22324.4 12 12/10/2025
7.0.0-preview.5.22301.12 15 12/10/2025
7.0.0-preview.4.22229.4 18 12/10/2025
7.0.0-preview.3.22175.4 15 12/10/2025
7.0.0-preview.2.22152.2 15 12/10/2025
7.0.0-preview.1.22076.8 19 12/09/2025
6.0.2-mauipre.1.22102.15 16 12/12/2025
6.0.2-mauipre.1.22054.8 16 12/12/2025
6.0.1 15 12/12/2025
6.0.0 15 12/12/2025
6.0.0-rc.2.21480.5 18 12/10/2025
6.0.0-rc.1.21451.13 17 12/12/2025
6.0.0-preview.7.21377.19 17 12/12/2025
6.0.0-preview.6.21352.12 15 12/10/2025
6.0.0-preview.5.21301.5 19 12/10/2025
6.0.0-preview.4.21253.7 16 12/12/2025
6.0.0-preview.3.21201.4 14 12/10/2025
6.0.0-preview.2.21154.6 17 12/10/2025
6.0.0-preview.1.21102.12 18 12/12/2025
5.0.0 12 12/12/2025
5.0.0-rc.2.20475.5 21 12/10/2025
5.0.0-rc.1.20451.14 16 12/12/2025
5.0.0-preview.8.20407.11 18 12/12/2025
5.0.0-preview.7.20364.11 17 12/12/2025
5.0.0-preview.6.20305.6 16 12/10/2025
5.0.0-preview.5.20278.1 19 12/10/2025
5.0.0-preview.4.20251.6 17 12/10/2025
5.0.0-preview.3.20214.6 16 12/10/2025
5.0.0-preview.2.20160.6 16 12/10/2025
5.0.0-preview.1.20120.5 14 12/10/2025
4.7.2 16 12/12/2025
4.7.0 18 12/12/2025
4.7.0-preview3.19551.4 16 12/12/2025
4.7.0-preview2.19523.17 14 12/12/2025
4.7.0-preview1.19504.10 15 12/12/2025
4.6.0 20 12/12/2025
4.6.0-rc1.19456.4 20 12/12/2025
4.6.0-preview9.19421.4 14 12/12/2025
4.6.0-preview9.19416.11 13 12/12/2025
4.6.0-preview8.19405.3 13 12/10/2025
4.6.0-preview7.19362.9 17 12/10/2025
4.6.0-preview6.19303.8 15 12/12/2025
4.6.0-preview6.19264.9 10 12/10/2025
4.6.0-preview5.19224.8 14 12/10/2025
4.6.0-preview4.19212.13 14 12/12/2025
4.6.0-preview3.19128.7 14 12/12/2025
4.6.0-preview.19073.11 12 12/12/2025
4.6.0-preview.18571.3 16 12/10/2025
4.5.4 14 12/12/2025
4.5.3 17 12/10/2025
4.5.2 18 12/12/2025
4.5.2-servicing-27114-05 18 12/12/2025
4.5.1 12 12/12/2025
4.5.0 17 12/12/2025
4.5.0-rc1 16 12/09/2025
4.5.0-preview2-26406-04 16 12/12/2025
4.5.0-preview1-26216-02 14 12/12/2025
4.4.0 13 12/12/2025
4.4.0-preview2-25405-01 12 12/12/2025
4.4.0-preview1-25305-02 16 12/12/2025
4.3.3 16 12/12/2025
4.3.2 15 12/12/2025
4.3.1 17 12/12/2025
4.3.0 18 12/12/2025
4.3.0-preview1-24530-04 15 12/12/2025
4.0.4 17 12/12/2025
4.0.3 14 12/12/2025
4.0.2 15 12/12/2025
4.0.1 16 12/12/2025
4.0.0 19 12/12/2025
4.0.0-rc2-24027 17 12/10/2025
4.0.0-beta-23516 17 12/10/2025
4.0.0-beta-23409 13 12/10/2025
4.0.0-beta-23225 18 12/10/2025
4.0.0-beta-23123 14 12/10/2025
4.0.0-beta-23109 10 12/10/2025
4.0.0-beta-23019 14 12/10/2025
4.0.0-beta-22816 16 12/12/2025
4.0.0-beta-22605 11 12/10/2025
4.0.0-beta-22416 16 12/10/2025
4.0.0-beta-22231 16 12/10/2025