Prevent windows library unloading at process termination.

[Kerilk]

DLL unloading at process de-initialization should be avoided:

Similarly, the entry-point function must not call the FreeLibrary function (or a function that calls FreeLibrary) during process termination, because this can result in a DLL being used after the system has executed its termination code.

https://learn.microsoft.com/en-us/windows/win32/dlls/dllmain