Maximizing Conventional Memory in MS-DOS 5.0–6.22 with HIMEM.SYS and EMM386.EXE
Step-by-step guide to freeing conventional memory in MS-DOS 5.0–6.22 by loading the DOS kernel into the HMA and moving drivers/TSRs into UMBs using HIMEM.SYS and EMM386.EXE. Includes CONFIG.SYS and AUTOEXEC.BAT examples, MEM verification commands, and recovery procedures for boot failures.