ShellEx.info
Updated for Windows 11 24H2

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Shell Extensions

Debug, develop, and optimize shellex.dll and other context menu handlers. The comprehensive resource for power users and developers.

Most Popular

Remove shellex.dll Safely

The ultimate guide to troubleshooting and removing problematic shell extensions preventing your system from fast boot.

Review

Best Shell Managers 2026

We compared ShellExView, Autoruns, and Process Hacker. See which tool is best for your needs.

Technical

Developer Documentation

Learn how to write high-performance Shell Extensions in C++ and debug them with x64dbg.

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Latest Articles

Expert guides, security advisories, and developer tutorials for Windows Shell Extensions.

Guide

Should You Disable All Unnecessary Shell Extensions in 2026?

A data-driven cybersecurity and performance analysis of whether disabling shell extensions actually improves Windows 11 speed, complete with benchmarks and PowerShell scripts.

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Tool

How to Disable Specific Context Menu Items Without Breaking the App

A complete power user guide to surgically removing annoying right-click menu items via the Windows Registry without uninstalling the parent software.

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Guide

Explorer.exe High Memory Usage? How Shell Extensions Cause Memory Leaks and How to Fix Them (2026)

Diagnose and fix high memory usage in explorer.exe caused by leaking shell extensions. Step-by-step guide using Process Explorer, Performance Monitor, and ShellExView on Windows 11.

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Developer

Writing Windows Shell Extensions in C++: A 2026 Developer Guide

A masterclass for C++ developers on writing modern, stable, memory-leak-free Windows Shell Extensions. Learn IShellExtInit, IExplorerCommand, and advanced WinDbg debugging.

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Guide

Windows 11 Context Menu vs Legacy Shell Extensions: A Complete Guide

Everything developers and power users need to know about Windows 11's modern IExplorerCommand context menu, legacy IContextMenu handlers, and performance optimization.

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Guide

Dropbox and Google Drive Icon Overlays Missing? Fix Cloud Sync Icon Conflicts in Windows (2026)

Fix missing Dropbox, Google Drive, and OneDrive sync status icons caused by the Windows icon overlay limit. Learn how to prioritize overlays and resolve conflicts between cloud storage services.

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Guide

How to Safely Remove or Disable shellex.dll Issues (2026 Guide)

Fix slow right-click menus, explorer.exe crashes, and high CPU usage caused by faulty shell extensions. Complete guide for Windows 11 and 10.

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Developer

The Best Open-Source Shell Extension Examples on GitHub (2026)

A curated list of the best open-source Windows Shell Extension repositories on GitHub. Learn to build context menus, icon overlays, and preview handlers in C++, C#, and Rust.

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Tool

The Best ShellExView Alternatives in 2026: Glary, Winaero & More

NirSoft's ShellExView is legendary, but it's showing its age. Discover the best modern alternatives in 2026 to manage your Windows 11 context menus.

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Tool

Best Free Shell Extension Managers for Windows (2026 Review)

A comprehensive deep-dive comparison of the best tools to manage, clean, and secure your Windows right-click context menu, featuring ShellExView, Autoruns, and more.

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