I have a folder C:\shared that contains the executable QtWebEngineProcess.exe and the necessary dlls (see sharedFolder.PNG)

I have created a network unit pointing to C:\shared named V:

I use your example "minimal" in webenginewidgets to test this issue (see main.cpp).

If I set QTWEBENGINEPROCESS_PATH to "C:\shared\QtWebEngineProcess.exe" the result is the result is as expected. (See localFolder.PNG)

If I set QTWEBENGINEPROCESS_PATH to "V:\QtWebEngineProcess.exe" the result is the error in networkDrive.PNG.

(See commands.PNG)

Using ProcMon I capture the error in ProcMonCapture1.png and ProcMonCapture2.png.

The permissions on the shared folder are read and write. In fact, other applications if they are launched on the same network drive have no problem loading the dll.

There is no antivirus action.