> Long mode (the 64-bit mode) has a "compatibility mode" that supports > 32-bit and 16-bit code (I have no idea if it is real/protected mode > 16-bit code...) which should be able to run the code. (See page 7 > here: http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/24592.pdf > ) It seems that the only reason Win64 does not run Win16 / DOS program > is the lack of a updated version of NTVDM and WOW. > Only 16-bit protected mode applications are supported. Which I believe means 16 bit windows programs work but most dos applications will not work unless they run under a dos extender. John
