App
The Microsoft Lync Web App plugin download gives you offline access to video calls, file sharing, and presence tools that browsers can’t handle.
If your company still uses Lync, you’ve probably hit the wall where browser-based features just don’t cut it—no video, no screen sharing, and constant login prompts. The plugin fixes all that, but finding the right installer can be a headache.
Below, I’ll walk you through the official 2024 download links, system checks, and a step-by-step install to get you up and running in under 10 minutes.
Where to download the official Microsoft Lync Web App plugin (2024 offline installer)
The Microsoft Lync Web App Plugin bridges the gap between browser limitations and full desktop features. While Lync Web App runs in browsers, the offline plugin adds video conferencing, file transfers, and presence controls without relying on Chrome or Edge.
Microsoft no longer hosts direct downloads, but I’ve verified the most reliable sources below for Windows 10/11 and Windows Server environments.
How to install and configure the Lync Web App plugin for full features
The Lync Web App Plugin transforms your browser-based experience into a full-featured client with video calls, screen sharing, and desktop notifications. Unlike the web-only version, this offline installer requires careful setup—especially if you’re running Windows 10/11 or Microsoft Edge.
Below, I’ll walk you through the installation, configuration, and troubleshooting steps to ensure you unlock all features without errors.
Before diving in, verify your system meets the minimum requirements: Windows 7+, Internet Explorer 11 (or Edge Legacy), and admin privileges. If you’re on macOS or Linux, the plugin won’t work—Microsoft discontinued support for those platforms in 2021.
For corporate environments, check with your IT team, as some organizations block the installer via Group Policy.
The Lync Web App Plugin is not compatible with modern browsers like Chrome or Firefox. If you’re using Edge Chromium, you’ll need to run it in IE Mode or use the legacy Edge 44+ version. Microsoft has deprecated this plugin in favor of Microsoft Teams, so expect limited updates moving forward.
Start by downloading the official installer from Microsoft’s archive (direct link: Microsoft Lync Web App Plugin). Save the .exe file to your Downloads folder or a dedicated installers directory. Right-click the file and select Run as administrator—this bypasses User Account Control (UAC) prompts and ensures full installation permissions.
During installation, you’ll see a setup wizard with three key steps: license agreement, installation location, and feature selection. Leave all options at their defaults unless your organization requires custom proxy settings or SSL certificate configurations.
The installer will automatically detect your default browser (IE or Edge Legacy) and integrate the plugin. If prompted, restart your browser immediately after installation.
To enable video calls and screen sharing, open Lync Web App in your browser and sign in with your credentials. Navigate to Options > Personal and ensure Video and Desktop Sharing are toggled on.
For desktop integration, right-click the Lync icon in your system tray and select Show System Tray Icon. This adds a presence indicator and quick-access buttons for calls and chats.
If the plugin fails to load, clear your browser’s cache and cookies, then reinstall it. For Edge Chromium users, enable IE Mode via Settings > Default Browser > Internet Explorer Mode.
If you encounter error code 80070005 (access denied), run Command Prompt as admin and execute: icacls "%ProgramFiles%\Microsoft Office\Office16\LyncWebApp.exe" /grant Everyone:(RX) This grants necessary permissions to the executable.