Addressing the impact of the WebView2 and Chromium addons

Hello ILLiad Users,



There have been several reports surrounding the ILLiad Client crashing. After further investigation, we have found Microsoft released an update on Microsoft WebView2 to version 121.0.2277.83. The update seems to be affecting Chromium and WebView2 addons by causing the Client to crash.

This is because the update no longer allows users to run both Chromium and WebView2 browsers at the same time. As a result, ILLiad 9.1 users may not experience this issue since WebView2 is not supported until ILLiad v9.2 allowing for Chromium addons to run by themselves without any issues.


What we’re doing to resolve the issue

Both Atlas Systems and Project IDS are working to update any remaining client addons that have not been converted from Chromium to allow support for WebView2. We will post updates as the addons become available. Note: If you are running any addons that have support for WebView2 with Chromium as a backup, these addons will be fine to leave in place.

In the meantime, I recommend verifying you’re using the latest version of the addon and turning off the affected addons. We do not recommend rolling back to the previous version of WebView2.


If you have any custom addons, affected by the update and need assistance, please contact





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