Request for Explanation – WebView2Loader_x86.dll Initialization Erro

FNC TMS FNC UI Pack
1

Dear FNC Team,

When running my application after installation via the setup package, an error message appears immediately after the program starts:

"Could not initialize Edge Chromium! Please check if WebView2Loader_x86.dll is correctly distributed and accessible."

This issue occurs on some computers, while on my development machine the application runs without any problem. After closing the message several times, the program eventually works, but the warning reappears each time the program is launched.

Could you please clarify:

  1. Root Cause – Why does this happen only on certain systems and not on my development PC?
  2. Deployment Requirements – Are there specific runtime files, redistributables, or installation steps needed to ensure WebView2Loader_x86.dll works correctly in all environments?
  3. Permanent Fix – What should be added to my setup script or installation package so that this issue never occurs for users?

I appreciate your guidance so that I can ensure reliable installation for all users.

Best regards,
Wakim Bishara

2

You need the runtime, Microsoft Edge WebView2 | Microsoft Edge Developer

which automatically comes with Windows Updates, but might be missing on systems without updates or older Windows versions. Aside from that, the DLL needs to be placed in the same folder as the executable. The DLLs can be found in the FNC installation directory.