This directory contains utilities for use under DOS. Although not part of Syslinux per se, they might be useful with MEMDISK. eltorito.sys - Generic El Torito CD-ROM driver Written by Gary Tong and Bart Lagerweij. Ported to NASM by H. Peter Anvin. mdiskchk.com - Simple program to query for the existence of a MEMDISK and display parameters.