WindowsAppSDK
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microsoft
The Windows App SDK empowers all Windows desktop apps with modern Windows UI, APIs, and platform features, including back-compat support, shipped via NuGet.
### Describe the bug When clicking a notification that a MSIX-packaged app creates, it opens a second instance instead of behaving like unpackaged apps and bringing the app window in...
General issue. Some docs haven't been touched in 2, 3, or even 5 years. Come on guys, have you forgotten?
### Describe the bug After upgrading from 1.7 to 1.8 I've encountered significant app distribution increase in size. Digging into Release notes I've got that I need to use separate...
### Describe the bug We are currently implementing a xaml island app similar to the sample [here](https://github.com/microsoft/WindowsAppSDK-Samples/tree/main/Samples/Islands/SimpleIslandApp/cpp-win32-unpackaged), which has a WinUI navigation view embedded in an MFC window. The issue...
### Describe the bug I traced every RoGetActivationFactory being made when Xaml starts up and I see a lot of calls that can be avoided if the factories were cached...
### Describe the bug lately. NET10 and VS2026 have finally been officially released, and I can't wait to upgrade. But it was found that xaml hot reload is completely ineffective....
### Describe the bug I added support for background tasks as described in the documentation: https://learn.microsoft.com/en-us/windows/apps/windows-app-sdk/applifecycle/background-tasks It works for most users, but I am seeing **a lot** of crash reports...
### Describe the bug I refer to https://learn.microsoft.com/en-us/uwp/schemas/appxpackage/uapmanifestschema/element-desktop3-cloudfiles I am not sure where to log this, if its not here, please tell me where There are new properties related to...
### Describe the bug WinAppSDK applications which use C# registration free WinRT set the environment variable `MICROSOFT_WINDOWSAPPRUNTIME_BASE_DIRECTORY`. https://github.com/microsoft/WindowsAppSDK/blob/bd8e2c16f1e15185ff31beb15cdadd550883f27e/dev/UndockedRegFreeWinRT/UndockedRegFreeWinRT-AutoInitializer.cs#L24-L27 This environment variable is used by MRTCore to locate resources. https://github.com/microsoft/WindowsAppSDK/blob/bd8e2c16f1e15185ff31beb15cdadd550883f27e/dev/MRTCore/mrt/Core/src/MRM.cpp#L999 When...
# Proposal: Modern System Tray Icon ## Summary After a feature proposal to the WinUI team to make system tray icons with WInUI microsoft/microsoft-ui-xaml#2020 and to have followed this discussion...
