legacy applications

Winsage
September 21, 2026
Microsoft has announced the impending cessation of support for IE Mode in the Edge browser, urging organizations to begin their migration strategies. Initially set to be supported until the end of 2029, Microsoft is emphasizing proactive planning for transitioning away from legacy systems. A communication from Microsoft highlighted the importance of providing a year’s notice before the end of support for IE Mode, which is crucial for IT administrators managing legacy applications. IE Mode uses the Chromium engine while allowing access to web pages through Internet Explorer 11's Trident engine. Organizations still dependent on IE Mode need to evaluate their IT infrastructure and identify critical applications that require updates or replacements. Microsoft is offering its App Assure service to help eligible customers improve compatibility with modern Windows platforms. Early planning is essential to reduce migration risks and maintain operational efficiency.
Tech Optimizer
September 12, 2026
If you hold Microsoft 365 E5, you already have access to Microsoft Defender for Endpoint, which provides enterprise-grade endpoint protection at no additional cost. For organizations without a dedicated security specialist, Sophos is recommended. CrowdStrike is suitable for those with a mature Security Operations Center (SOC) and sufficient budget. Other options include SentinelOne for mid-sized organizations needing automation, ESET for older hardware and virtual desktops, Avast Business for very small businesses without IT staff, VIPRE for budget-conscious organizations, and Expel for tool-agnostic managed detection and response. It is essential to assess your organization's current situation honestly when evaluating endpoint protection options. Antivirus and EDR are now essentially the same agent, and organizations should inquire about update staging processes and review independent tests for protection rates. Coverage for servers and Linux environments is often overlooked but crucial, as Linux servers are prime targets for ransomware. Key recommendations include: - Microsoft Defender for Endpoint for organizations already on Microsoft 365 E5. - Sophos for organizations with 25-500 staff relying on IT generalists. - CrowdStrike for enterprises with a well-funded security operations function. - SentinelOne for mid-sized organizations needing autonomous operation. - ESET for organizations with older hardware or virtual desktop infrastructure. - Avast Business for micro and small businesses. - VIPRE for budget-conscious organizations. - Expel for those seeking managed detection across various environments. During deployment, avoid running two real-time agents simultaneously, ensure prevention features are activated, and test on line-of-business applications first. Verify update staging and rollback procedures with vendors, and confirm whether Microsoft licensing covers your needs to avoid unnecessary purchases.
Tech Optimizer
September 10, 2026
If you hold Microsoft 365 E5, you have access to Microsoft Defender for Endpoint, which provides enterprise-grade endpoint protection at no additional cost. For organizations without a dedicated security specialist, Sophos is recommended for its user-friendly platform. CrowdStrike is suggested for those with a mature Security Operations Center (SOC) and sufficient budget. Other options include SentinelOne for mid-sized organizations needing automation, ESET for older hardware and virtual desktops, Avast Business for very small businesses, VIPRE for budget-conscious mixed estates, and Expel for tool-agnostic managed detection and response. Antivirus and EDR are now unified under a single agent, and organizations should inquire about update staging processes to avoid issues like those experienced in July 2024 with a major vendor's faulty content update. Independent tests from organizations like AV-Comparatives and AV-TEST are crucial for evaluating protection rates and false positives. Linux servers require attention as they are often targeted by ransomware. When deploying endpoint protection, avoid running two real-time agents simultaneously, activate prevention features promptly, and test deployments on critical applications first. Organizations should confirm their Microsoft licensing covers necessary features and ensure there is a plan for responding to alerts. Common pitfalls include neglecting identity management and failing to test response workflows before incidents occur.
Winsage
September 6, 2026
Microsoft has released a quick-start guide for developers to create native WinUI 3 applications for Windows 11 in about 30 minutes, using tools like VS Code, .NET 10, GitHub Copilot's free tier, and Microsoft's winapp CLI, without requiring Visual Studio. The guide details project scaffolding, AI integration for features, testing, and packaging as an MSIX installer. The AI agent, winui-dev, is a specialized plugin for WinUI tasks, and developers are encouraged to connect it to the Learn MCP server for updated documentation. This initiative aims to move developers away from web wrappers and Electron-style applications, which use more RAM. Microsoft announced at the Build 2026 conference that "3" will be removed from WinUI's name, reinforcing its long-term stability. WinUI 3 is being integrated into Windows 11 components, although some apps still use WebView2 technology, which consumes more RAM than native options.
Winsage
August 24, 2026
Microsoft released its monthly Patch Tuesday security updates, which included dynamic updates and new .NET Framework versions. Users of Windows 11, Windows 10, and Windows Server are experiencing printing issues after installing the August 2026 .NET Framework cumulative updates, particularly with Windows Presentation Foundation (WPF) applications that fail during printing tasks or when generating PDF or XPS documents. The problems are linked to specific fonts, notably Calibri, and may result in a System.IO.FileFormatException. Microsoft has provided a temporary workaround involving an AppContext switch, but enabling this switch disables certain security protections from the August 2026 update, potentially exposing applications to vulnerabilities. No permanent fix or timeline for one has been provided.
Winsage
August 24, 2026
Microsoft is re-optimizing Windows memory performance for devices with 8GB or more RAM, moving away from its previous approach that treated 8GB as entry-level. The company is recognizing that hardware growth can no longer mask systemic inefficiencies, particularly with the rise of AI requiring substantial resources. Windows has accumulated background services and frameworks without a cohesive resource management strategy, leading to inefficiencies. Compatibility with legacy systems has complicated resource management, while commercial pressures have contributed to system bloat. The reliance on web technologies, particularly WebView2, has further increased memory consumption. Microsoft aims for Windows to achieve integration similar to macOS but faces challenges due to its diverse ecosystem. The demand for memory driven by AI has made system-level optimization a pressing issue, prompting Microsoft to adjust its guidance on memory requirements. The company must balance modernization with maintaining compatibility with older applications and drivers as it adapts to new computing demands.
Winsage
August 21, 2026
Windows 11's right-click context menu has received mixed reviews since its launch, with users finding it cluttered and slower than the Windows 10 version. Microsoft has acknowledged these issues and is working on updates to improve the menu's performance and customization options. The legacy context menu from Windows 10 remains accessible through the “Show more options” feature, although it will not appear by default. Microsoft is providing guidance to developers to help transition their applications to the new context menu format while ensuring that users who prefer the classic menu can still access it.
Winsage
August 16, 2026
Microsoft has acknowledged a bug in Windows 11 that disrupts the functionality of Internet Explorer mode within Microsoft Edge for certain users, affecting the loading of legacy websites and applications. This issue primarily impacts organizations that rely on IE mode for older internal web applications. Microsoft is investigating the matter and developing a fix, but no timeline for resolution has been provided. Organizations are advised to identify affected internal websites, monitor the Windows release health dashboard for updates, avoid altering IE mode configurations, and report issues through Microsoft support if they impact critical applications.
Winsage
August 4, 2026
Marcus Ash, Corporate Vice President of Design and Research at Microsoft, discussed the stagnation in UI updates for Windows 11 tools like Control Panel, File Explorer, and Registry Editor, emphasizing the importance of maintaining functionality and compatibility with legacy systems. He noted that changing the Control Panel is challenging due to the need to avoid disrupting existing functionalities that users rely on. Microsoft is focused on modernizing these applications while ensuring core functionalities remain intact, using user behavior, telemetry data, and feedback to guide updates. Ash mentioned that the Registry Editor is also set for modernization without compromising its essential functions. Additionally, Pavan Davuluri, President of Windows and Devices, stated that Windows 11 would be optimized for devices with 8GB of RAM.
Winsage
June 19, 2026
Microsoft released Patch Tuesday updates for Windows 11, specifically KB5094126 and KB5093998, along with dynamic updates KB5094149, KB5095971, and KB5094156. Two issues have been acknowledged: malfunctioning Office applications and complications with the Recycle Bin. In July 2025, Microsoft changed the default settings of Windows 11 to JScript9Legacy in versions 24H2 and later, continuing with version 25H2 in October 2025. This change aimed to enhance security by addressing vulnerabilities related to legacy scripting, particularly cross-site scripting (XSS). A support article details a compatibility issue arising from the transition from jscript9.dll to jscript9legacy.dll, which affects how JScript manages execution context. Functions and definitions established by one script are no longer accessible to subsequent scripts, leading to failures in legacy applications. To address this, Microsoft released the KB5077241 update, which requires manual activation of persistent JScript execution context through a Registry setting. The steps to implement this solution involve creating a feature control registry key and configuring a DWORD value for specific processes or all processes.
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