Hi Richard, Ah, I remember paging through that book about it, "Developing your own 32-bit Operating System". I'll never forget. I think that was the first book I had ever seen that discussed developing an operating system from the ground up and as a 12-year-old or whatever, I was intrigued. I don't own the title (yet?) and I've never tried to build or run MMURTL... you've probably seen the below URL but just in case: https://github.com/bproctor/MMURTL Best, Sean On Mon, Mar 30, 2015 at 9:50 PM, Richard Cini <rich.cini at verizon.net> wrote: