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Win32 app isolation overview

  • Article
  • 02/26/2025

The Win32 app isolation security feature for Windows provides a sandbox environment that can be integrated into Win32 apps, providing an additional layer of security. This enhancement requires little to no change to your code.

For the latest updates and enhancements, please refer to the Release notes.

If you have a feature request or wish to report a bug, file an issue in our GitHub repo.

Important

This feature is in preview: Some information relates to a prerelease product which may be substantially modified before it's commercially released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Target application types

Minimum requirements

The following are the minimum requirements to create a Win32 app isolation app:

Creating a Win32 app isolation app

These are the steps to consider when creating a Win32 app isolation app:

Application Capability Profiler

Microsoft.Windows.Win32Isolation.ApplicationCapabilityProfiler Module

Understanding how packaged desktop apps run on Windows

Additional resources

Training

Module

Deploy applications by using MSIX app attach for Azure Virtual Desktop - Training

Learn how to deliver applications by using MSIX app attach. MSIX app attach is an application delivery technology that separates applications and their state from the operating system and assigns applications to users dynamically.

Certification

Microsoft Certified: Information Security Administrator Associate - Certifications

As an Information Security Administrator, you plan and implement information security of sensitive data by using Microsoft Purview and related services. You’re responsible for mitigating risks by protecting data inside collaboration environments that are managed by Microsoft 365 from internal and external threats and protecting data used by AI services. You also implement information protection, data loss prevention, retention, insider risk management, and manage information security alerts and activities.