At a time when the consensus is that corporations do not know what to do with AI, MS has a plan to use it to bring more native WinUI apps to the MS Store.

The company has published a new quick-start guide that helps developers go from an empty folder to a published WinUI 3 app using AI, VS Code, and the winapp CLI. MS says the entire process takes about 30 minutes, does not require Visual Studio, and relies on free tools, including the GitHub Copilot free tier.

The accessible 30-minute guide is essentially a way to encourage beginner developers to create Windows 11 apps without undertaking the more difficult parts of coding. That is a welcome development because the MS Store could use more WinUI apps.

Anyone can now create a WinUI app with AI, ask an agent to add features, test the result, package it as MSIX, and submit it to the MS Store—all for free and with minimal effort. However, the accompanying AI-assisted migration guides for existing WPF and UWP apps are even more interesting.

This appears to be MS’s answer to Windows’ long-standing native app problem: make WinUI apps easier to build, simplify the migration of older apps, and let AI handle the tedious work involved in both processes.

MS Is Using AI to Simplify WinUI App Development and Migration

The new-app workflow uses VS Code, .NET 10, MS’s Windows App Development CLI, WinUI project templates, GitHub Copilot, and the WinUI agent plugin.

This approach should not be confused with the way MS promoted its general-purpose Copilot chatbot. The WinUI agent includes specialized capabilities for WinUI design, code review, UI testing, packaging, and framework migration.

MS also recommends connecting the agent to its Learn MCP server so that it can retrieve current WinUI API documentation when processing queries. Given WinUI 3’s lower popularity, it is reasonable to assume that AI models have access to significantly more training material about WPF and UWP.

The WPF migration guide does not present the process as a simple find-and-replace task. For example, System.Windows.* becomes MS.UI.Xaml.*. MS provides the AI agent with a comprehensive substitution table covering controls, threading, window management, DPI handling, and data binding, along with a starter prompt that explains what the agent should flag.

MS’s migration guide from UWP to WinUI 3 begins by noting that UWP is no longer under active development and that WinUI 3 and the Windows App SDK are its successors. Notably, the guide warns that AI models trained on years of UWP examples will continue reproducing those patterns unless the migration capability provides explicit substitutions for them to follow.

MS is essentially trying to reduce the cost of moving its enormous existing library of WPF and UWP software to the new native framework.

MS Also Wants WinUI to Replace the Web-App Mess

Windows continues to receive web apps instead of native applications because cross-platform web frameworks are less expensive to develop with. They allow developers to reuse code across platforms rather than write for a Windows framework that might change in the future, as MS’s frameworks have several times before.

At Build 2026, MS made a strong commitment to changing that perception by calling WinUI the “production platform for Windows apps” and removing the “3” from its name. The change was intended to reassure the developer community that MS would not replace the framework again.

MS also committed to lower memory usage, DataGrid and charting support, improved WPF interoperability, and greater open-source participation. In fact, WinUI is now fully open source.

WinUI is not limited to app development. MS has been replacing parts of Windows 11’s legacy interface with WinUI 3, most recently including AutoPlay and Print Management, with more updates in development. It would be unreasonable to ask developers to adopt a technology stack that MS itself does not use.

However, MS Needs These Guides More Than Developers Do

MS’s argument for native apps is not that WebView2 or Electron are inherently bad technologies, although that view is debatable. The company’s documentation describes WebView2 as a legitimate option for building hybrid apps and argues that resource usage depends on how effectively developers optimize their web content.

Ironically, the Windows 11 Weather app, which is built with WebView2, uses 1.2GB of RAM while idle—about five times as much as Apple’s native macOS Weather app—and runs nine Chromium subprocesses.

Despite its enterprise-first approach, MS Teams added an Efficiency Mode only after years of complaints.

Popular third-party apps have faced similar problems. WhatsApp’s Windows app has struggled with loading times while consuming substantial amounts of RAM. Discord acknowledged that its Windows app was a resource hog and tested automatically restarting it when RAM usage exceeded 4GB.

MS is asking third-party developers to build leaner native apps while some of its own applications and parts of the Windows interface remain based on WebView2.

Is AI-Generated Code for Windows Apps Good or Bad?

David Fowler, a MS Distinguished Engineer working on Aspire, recently said that “typing code is absolutely over.” The WinUI tooling includes agents that can generate code, understand a project, run tests, and fix failures instead of requiring a developer to type every line manually.

However, making code less expensive to produce is not the same as making it good. MS recognizes this distinction, which is why the WinUI agent includes dedicated code-review and UI-testing capabilities.

If MS wants AI to generate more Windows software, that software must still be efficient. Otherwise, making native apps easier to build will simply result in more poorly optimized native applications.

MS Is Rebuilding the Windows Developer Ecosystem Around AI

Understanding MS’s plan to bring more native apps to Windows 11 reveals how much the development landscape has changed. Years ago, MS needed Steve Ballmer to chant “developers, developers, developers” on stage. Today, many developers prefer Linux environments, while a substantial group of AI-focused app developers choose MacBooks because of their powerful hardware.

Redmond is trying to preserve its position by making Windows development happen within a Windows environment designed around AI agents.

If the strategy succeeds, Windows could gain more native apps without requiring developers to rewrite everything manually. However, MS must still prove that AI-built WinUI apps will be faster and lighter than the web apps they are intended to replace.

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