I was worried about the MSVC command line build but I now realise that this does do a FAT build (at least I don't think it does). I have translated fat_entry.asm for YASM (an interesting exercise!) but I am not sure it is useful since some of the symbols it uses are alien to Windows (WIndows doesn't have a Global Symbol Table) I assume that someone has faked them in the mingw64 build. Unless special measures are taken, it is illegal to write to the code segment in Windows and I don't see the required calls in fat_entry.asm to make the changes to the pointers in the tables legal. Maybe mingw64 turns the page protection off globally (bad practice)? Brian
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