Windows 11 Developed a keyboard layout DLL from source but is never activated

[Thierry-Lelégard]

Hi, I try to develop, build and install a keyboard layout DLL for Windows 10 and 11 but it is never activated. I start from the examples in https://github.com/microsoft/Windows-driver-samples/tree/main/input/layout/kbdusI tried on an x64 Windows 10 system with Visual Studio 17.5.4. I installed the rebuilt sample kbdus.dll as C:\Windows\System32\kbdaatest.dll. Based on existing entries in the registry, I declare it as follow:[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layouts\a0080409]"Layout File"="kbdaatest.dll""Layout Text"="US AA Test"Arguably, the entry "a0080409" was arb

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