ShellEx.info
Updated for Windows 11 24H2

Master Your Windows
Shell Extensions

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

ShellExView
Most Popular

ShellExView Download & Tutorial

Download ShellExView free. Step-by-step guide to fix slow right-click menu & Explorer crashes in 5 minutes.

Performance
New

Top 10 Slow Shell Extensions

Speed test results revealing which shell extensions slow Windows 11 most. See exact delays & disable instructions.

Code
Guide

Disable Shell Extensions

Complete guide to disabling shell extensions on Windows 11/10. Registry, PowerShell & ShellExView methods.

Error
Fix

Fix Explorer Not Responding

Windows Explorer freezes on right-click? 7 causes & solutions including registry fixes & DLL repairs.

Security
Security

Is shellex.dll a Virus?

Learn how to identify if shellex.dll is malware. Check file location, digital signatures & remove threats safely.

Tools
Review

Best Context Menu Cleaners

7 best free tools tested & ranked. Compare ShellExView, CCleaner, Autoruns & more. Speed up your PC.

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Latest Articles

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

Developer

Migrating Shell Extensions from Windows 10 to Windows 11: Complete Developer Guide (2026)

The definitive guide to porting legacy IContextMenu shell extensions to Windows 11's IExplorerCommand API. Covers the new context menu architecture, MSIX packaging, backward compatibility, and Win32 App Isolation.

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Developer

The Ultimate Guide to Debugging Windows Shell Extensions

A deep dive for developers and power users on how to debug Windows Explorer crashes. Learn to use Event Viewer, Process Explorer, WinDbg, and Procdump to catch bad shell extensions.

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Developer

Why Your Shell Extension Isn’t Showing Up in Windows 11: The Complete Developer & User Guide

A deep dive into Windows 11 context menus, IExplorerCommand, sparse packages, and why classic IContextMenu handlers are hidden under 'Show more options'. Learn to diagnose and fix missing shell extensions.

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Guide

Explorer Not Responding Right Click? Complete Windows 11/10 Fix (2026)

Fix Windows Explorer not responding when right clicking. Step-by-step solutions for freezes, crashes & slow context menu. Works on Windows 11 24H2 & 10.

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Guide

10 Shell Extensions Slowing Down Windows 11 | Speed Test Results 2026

Speed test results: 10 shell extensions slowing Windows 11 right-click menu. See exact delays (0.3s to 3s) and how to disable them for instant speed boost.

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Security

Shell Extension DLL Hijacking: How Attackers Exploit Windows Explorer and How to Defend Against It (2026)

Learn how DLL hijacking attacks target Windows shell extensions to gain persistence, real-world CVE examples, detection techniques using Autoruns and Process Monitor, and hardening strategies.

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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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Security

How to Verify If a Shell Extension DLL Is Digitally Signed (Windows Security Guide 2026)

Learn how to check if a DLL file is digitally signed using sigcheck, PowerShell, and File Properties. Identify unsigned and tampered shell extensions before they compromise your system.

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Security

How Hackers Use Windows Shell Extensions for Spyware & Persistence

A deep dive into the cybersecurity risks of Windows Shell Extensions. Learn how bad actors use COM DLLs and context menus to inject keyloggers and malware into explorer.exe.

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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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