System.Runtime.InteropServices.WindowsRuntime 4.0.0
Provides classes that support interoperation between managed code and the Windows Runtime, and that enable the creation of Windows Runtime types with managed code.
Commonly Used Types:
System.Runtime.InteropServices.WindowsRuntime.WindowsRuntimeMarshal
System.Runtime.InteropServices.WindowsRuntime.ReadOnlyArrayAttribute
System.Runtime.InteropServices.WindowsRuntime.WriteOnlyArrayAttribute
System.Runtime.InteropServices.WindowsRuntime.ReturnValueNameAttribute
Showing the top 20 packages that depend on System.Runtime.InteropServices.WindowsRuntime.
| Packages | Downloads |
|---|---|
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Microsoft.NETCore.UniversalWindowsPlatform
Provides a set of packages that can be used when building Universal Windows applications on .NET.
5.3.0 contains .NET Native 1.6 with lots of great improvements, including addressing over 100 customer reported issues since .NET Native 1.4.
When using Visual Studio this package requires Visual Studio 2017 or later.
When using NuGet 3.x this package requires at least version 3.4.
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2 |
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Microsoft.NETCore.UniversalWindowsPlatform
Provides a set of packages that can be used when building Universal Windows applications on .NETCore.
4a86d78425de41ee21f6b83b1625db768b6b2db6
When using NuGet 3.x this package requires at least version 3.4.
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2 |
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Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 1903. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
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Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 22523. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
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2 |
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Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 22572. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
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3 |
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Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 22621. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
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2 |
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Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 23456. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
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3 |
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Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 23526. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
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2 |
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Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 25131. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
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2 |
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Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 25231. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
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3 |
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Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 25284. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
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2 |
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Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 25295. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
|
3 |
|
Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 25314. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
|
3 |
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Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 25330. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
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3 |
|
Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 25905. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
|
3 |
|
Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 25926. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
|
3 |
|
Microsoft.Windows.SDK.Contracts
The Windows WinRT API Pack enables you to add the latest Windows Runtime APIs support to your .NET Framework 4.6+ and .NET Core 3.0+ libraries and apps.
This package includes all the supported Windows Runtime APIs up to Windows version 26100. If you are targeting earlier platforms, consider only offering functionality available on the detected platform version. For further details, see:
https://docs.microsoft.com/en-us/windows/uwp/debug-test-perf/version-adaptive-code
Supported platforms:
- .NET Framework 4.6+
- .NET Core 3.0+
Requires default package management format set to PackageReference, and NuGet 4.0 or higher.
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3 |
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System.Net.WebSockets.Client
Provides the System.Net.WebSockets.ClientWebSocket class, which implements the client role of the WebSockets protocol (RFC 6455).
Commonly Used Types:
System.Net.WebSockets.ClientWebSocket
When using NuGet 3.x this package requires at least version 3.4.
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2 |
.NET Framework 4.5
- No dependencies.
Windows 8.0
- No dependencies.
WindowsPhone 8.0
- No dependencies.
WindowsPhoneApp 8.1
- No dependencies.
.NETPlatform 5.0
- System.Runtime (>= 4.0.0)
| Version | Downloads | Last updated |
|---|---|---|
| 4.3.0 | 2 | 04/17/2026 |
| 4.3.0-preview1-24530-04 | 1 | 04/19/2026 |
| 4.0.1 | 2 | 04/18/2026 |
| 4.0.1-rc2-24027 | 2 | 04/18/2026 |
| 4.0.1-beta-23516 | 2 | 04/19/2026 |
| 4.0.1-beta-23409 | 2 | 04/19/2026 |
| 4.0.1-beta-23225 | 2 | 04/19/2026 |
| 4.0.0 | 1 | 04/18/2026 |
| 4.0.0-beta-23109 | 2 | 04/19/2026 |
| 4.0.0-beta-23019 | 2 | 04/19/2026 |
| 4.0.0-beta-22816 | 2 | 04/18/2026 |