Windows App SDK Archives

Winsage

May 13, 2026

Microsoft aims to speed Windows with ‘leap forward’ in WinUI 3 perf

Microsoft has announced a 25 percent improvement in the performance of WinUI 3, specifically in File Explorer components. There has been a 41 percent reduction in memory allocations and a 45 percent decrease in function calls. Some optimizations may involve breaking changes, which will initially be optional for developers. The enhancements are intended to become the default in future iterations of WinUI and the Windows App SDK. Despite these improvements, developers have expressed concerns about WinUI 3's performance, noting it is slower than WPF and UWP. The reliance on WinRT interop for component actions is seen as a significant factor hindering speed. Additionally, there are historical tensions regarding the adoption of Microsoft's frameworks within the Windows and Office teams, leading to skepticism about their reliability.

Winsage

May 7, 2026

Microsoft admits Windows 11 is still built on 90s-era Win32, and no one saw it coming

Users engage with the Win32 API when right-clicking files or launching desktop applications in Windows 11, a technology that has persisted since Windows 95. Microsoft’s Chief Technology Officer, Mark Russinovich, noted that the longevity of Win32 was unexpected, as it was not part of the company's original vision for the future. Despite attempts to replace Win32 over the past two decades, many users still have more Win32 applications than modern alternatives. Microsoft has introduced several frameworks to replace Win32, including MFC, WinForms, WPF, WinRT, and UWP, but none have fully succeeded. Developers have shown a preference for RAM-intensive web applications over native ones due to concerns about the stability of Microsoft's frameworks. Microsoft has introduced WebView2 to embed web technologies in desktop applications, leading to increased memory usage. In response to user needs, Microsoft is shifting back to native applications with WinUI 3, aiming to modernize Windows 11 while retaining access to Win32 infrastructure. The company is gradually replacing legacy Win32 UI elements with WinUI 3 components, improving performance and user experience.

Winsage

April 26, 2026

Microsoft explains why Windows 11 File Explorer scrolls smoothly in some places, but not everywhere

Users have reported an inconsistent scrolling experience in Microsoft’s File Explorer, with smooth scrolling in the Gallery and Home views but jagged scrolling in standard folders. This discrepancy is due to the Gallery and Home views utilizing the WinUI 3 framework, while standard folders rely on legacy Win32 code. Microsoft is modernizing aspects of File Explorer but has not yet rewritten its foundational elements, leading to different rendering paths. The traditional folder views retain essential functionalities but sacrifice some modern UI features. Touch support issues are acknowledged, with current interactions prioritizing mouse and keyboard over touch gestures. Microsoft is addressing performance and reliability issues, with improvements in folder view consistency and reduced crashes noted in recent preview builds. These updates are expected in the May 2026 update, while smooth scrolling enhancements are planned for the future.

Winsage

March 27, 2026

Microsoft Introduces WinApp CLI to Unify Windows App Development Workflows

In January 2026, Microsoft launched the public preview of the WinApp CLI, a command-line tool for Windows application development that is open source and supports various frameworks including .NET, C++, Electron, and Rust. The tool aims to simplify the complexities of Windows development by providing a unified entry point for environment setup, configuration, and packaging. Key features include the winapp init command for environment initialization, the winapp create-debug-identity command for attaching package identities without full MSIX packaging, and automation capabilities for manifests, certificates, and signing processes. The CLI also supports Electron and Node.js scenarios, allowing developers to inject package identity into running Electron processes. The WinApp CLI is currently in public preview, with potential changes before general availability, and an updated version 0.2.0 was released in late February 2026. It can be accessed via WinGet, npm, and as a GitHub project for community contributions.

Winsage

March 4, 2026

Windows App Development CLI Updated with .NET Project Support, More

Microsoft has released version 0.2 of its Windows App Development CLI (winapp), incorporating several new features based on community feedback. Key updates include first-class support for .NET projects, allowing integration of WinUI 3, WPF, Windows Forms, and .NET console applications. Developers can initialize projects with winapp init, which aligns them with the appropriate Windows SDK version and generates necessary folders. The update also introduces manifest placeholders for easier app packaging, integrates Microsoft Store CLI commands into winapp, and enhances the help and error messaging system for better usability. Additional improvements include new commands for external catalogs and package identity, updates to winapp pack and manifest update-assets, and a Flutter guide with a sample project for using Windows App SDK APIs.

Winsage

December 5, 2025

Decline of Native Windows Apps: Electron’s Rise and Hybrid Future

Native Windows apps, once central to the desktop experience, are declining in favor of web-based technologies like Electron and Chromium. Developers are shifting towards web wrappers for cross-platform compatibility and efficiency, despite performance drawbacks. WhatsApp has transitioned from a native app to a web wrapper, prioritizing maintenance over performance. This trend is evident across various software categories, with applications like Spotify and Slack adopting web frameworks, leading to increased resource consumption and slower performance. Microsoft’s focus on cloud services and AI has influenced this shift, as has the demand for cross-platform solutions. Native apps are being overshadowed by web technologies, which often lack deep integration with Windows features. Performance trade-offs are significant, with web wrappers consuming more memory than native apps. The rise of progressive web apps (PWAs) and AI integration further complicates the landscape, suggesting a future where the definition of "native" may evolve. The tech community is divided on these changes, with some advocating for a balance between web and native solutions.

Winsage

November 7, 2025

Microsoft admits Windows 11’s right-click menu is cluttered, confirms fix with a new UI feature

Windows 11 is set to introduce a "Split Context Menu" update for WinUI 3-based applications, aimed at reducing menu clutter and improving usability. This update will implement context-aware nested menus that adapt based on file types, allowing for a more streamlined right-click experience. The new API, SplitMenuFlyoutItem, will enable a single menu entry to display both primary actions and secondary options in a smaller adjacent flyout. This redesign could reduce menu length by up to 38% in some cases. Currently, the Split Context Menu is intended for WinUI applications, with no confirmation on whether it will extend to the entire Windows shell. The update is still in early development and not available for public testing.

Winsage

September 29, 2025

Microsoft Releases Windows ML: Simplifying AI Integration for Apps

Microsoft has launched Windows ML, an AI framework designed to integrate AI models into Windows applications, allowing local inferences on various hardware, including CPUs, GPUs, and NPUs. It abstracts hardware complexities to optimize performance across devices and supports AI formats like ONNX for compatibility with multiple vendors. Windows ML integrates with the Windows App SDK and offers APIs in languages such as C#, C++, and Python, facilitating the development of AI-enhanced applications. Performance benchmarks indicate up to 4x faster inference on NPUs compared to CPUs. The framework aims to create a hybrid AI ecosystem, balancing local and cloud processing. Windows 11’s 24H2 update requires NPU support in Copilot+ PCs, aligning with edge computing trends. Microsoft’s strategy emphasizes cross-hardware compatibility, potentially benefiting enterprise environments. Challenges remain in model training and security, and Microsoft plans to enhance Windows ML with future updates.

Winsage

October 24, 2024

Microsoft’s official Windows 11 virtual machines are no longer available

Microsoft's official virtual machines for the Windows 11 Development Environment are currently unavailable for download as of October 23, 2024, due to expiration and activation issues. Users with operational environments will face activation problems, as these virtual machines do not support activation via product keys, resulting in a black desktop background and shutdown every hour for expired versions. The last update for these virtual machines was in July 2024, based on Windows 11 build 22621.3880. The Windows 11 Development Environment was offered in four configurations: Hyper-V, Parallels for Mac, VirtualBox, and VMware, and included tools such as Visual Studio 2022 Community Edition, .NET Desktop, Azure, Windows App SDK for C#, Windows Subsystem for Linux 2 with Ubuntu, Windows Terminal, and Developer mode.

Winsage

October 8, 2024

Third-party tool “Rebound 11” aims to improve the Windows 11 UI, while keeping system files intact

A new tool named Rebound 11 enhances the user interface of Windows 11 using the Windows App SDK and WinUI 3 API, aiming for greater consistency and a secure user experience. It does not alter critical system files and offers applications such as WordPad-style text editors, a modernized file explorer, and a revamped Control Panel. Rebound 11 integrates with both Win32 and Microsoft Store applications and is designed to be safe and reversible. Minimum hardware requirements include a 2 GHz CPU, 4 GB of RAM, 2 GB of free storage, and a DirectX 12-compatible GPU. It is open-source and does not interfere with Windows Update processes.