javascript error on main process Forticlient VPN latest version

[youngluoyang]

question description：

C:\Program Files\Fortinet\FortiClient>FortiClient.exe

C:\Program Files\Fortinet\FortiClient>
Error: Cannot open C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\guimessenger64.node: Error: A dynamic link library (DLL) initialization routine failed.
C:\Program Files\Fortinet\FortiClient\resources\app.asar.unpacked\assets\js\guimessenger64.node
at ./node_modules/guimessenger/guimessenger64.node (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:22:189)
at __webpack_require__ (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:38601:42)
at ./src/main/loader.js (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:23284:18)
at __webpack_require__ (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:38601:42)
at ./src/main/logger/logger.js (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:24107:19) at __webpack_require__ (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:38601:42)
at ./src/main/main-window.js (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:24142:72)
at __webpack_require__ (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:38601:42)
at ./src/main/window-manager/window-manager.js (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:29202:70)
at __webpack_require__ (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:38601:42)
Error: Cannot open C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\guimessenger32.node: Error: The specified module could not be found.
C:\Program Files\Fortinet\FortiClient\resources\app.asar.unpacked\assets\js\guimessenger32.node
at ./node_modules/guimessenger/guimessenger32.node (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:11:189)
at __webpack_require__ (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:38601:42)
at ./src/main/loader.js (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:23292:20)
at __webpack_require__ (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:38601:42)
at ./src/main/logger/logger.js (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:24107:19) at __webpack_require__ (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:38601:42)
at ./src/main/main-window.js (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:24142:72)
at __webpack_require__ (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:38601:42)
at ./src/main/window-manager/window-manager.js (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:29202:70)
at __webpack_require__ (C:\Program Files\Fortinet\FortiClient\resources\app.asar\assets\js\main.js:38601:42)

forticlientvpn version：

FortiClientVPNSetup_7.0.5.0238_x64.exe

OS version:

Version Windows 10 Enterprise

Version 22H2

Installation Date ‎2024/‎10/‎30

OS Build 19045.5487

Experience Windows Feature Experience Pack 1000.19061.1000.0

c++ redistributable version:

Try To fix the issue(not OK):

1) Uninstall FortiClient.

2) Uninstall Microsoft Visual C++.

3) Reboot PC.

4) Reinstall FortiClient.

5) Reinstall Microsoft Visual C++ 2015-2022.

Try install the latest forticlientVPN7.4, still not ok.

[MZBZ]

Use the FCremove.exe to wipe clean FortiClient

https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-download-FortiClient-and-FCRemove-e...

[youngluoyang]

3.Environment variable debug, not ok.

4.Uninstall recently installed tools, not ok.

5.Repair OS, not ok.

On windows10 22H2, default have ' Microsoft Visual C++ 2015-2022'.

'FCCryptDLL.dll' missing(not x86 folder one). Seek another computer, install same FortiClient, copy 'FCCryptDLL.dll', solved.

[youngluoyang]

This dll missing, when I update OS.

[joofa]

We encountered the same issue but didn’t need to remove anything. We simply had to repair Microsoft Visual C++ 2015-2022. After the repair, FortiClient started working again.
 
Microsoft Visual C++ 2015-2022 has been the cause of many issues this week, affecting applications like Teams and others.