1990, Byte (volume 15, issues 11-13, page 256)Phar Lap executables ... provide a protected-mode selector, 34h, that maps to the first megabyte of physical memory.
1995, Lary L. Myers, ‎Keith Weiskamp, Amazing 3-D games adventure set (page 235)You will only have to be concerned with DPMI, selectors, and such, if you use Borland C++ in DOS.