On Github, the pharo-vm has only one place for GetFileAttributesEx and that's in

platforms/win32/vm/sqWin32Directory.c l366-368

It is GetFileAttributesExW by the way and inside:

int dir_EntryLookup(char *pathString, int pathLength, char* nameString, int nameStringLength,

/* outputs: */ char *name, int *nameLength, int *creationDate, int *modificationDate,

� � � � � � � � � � int *isDirectory, squeakFileOffsetType *sizeIfFile, sqInt *posixPermissions, sqInt *isSymlink)

...

� � if(!GetFileAttributesExW(win32Path, 0, &winAttrs)) {

� � � � return NO_MORE_ENTRIES;

� �}

Don't know about the other flavors.

Phil