Windows 3.x will require the long filename support (LFN) to be disabled, otherwise Windows 3.x can crash.For some systems, the EMS/UMB memory driver, EMM386.EXE, may also be required.Windows 3.x requires the XMS/HMA memory driver, HIMEM.SYS to be loaded in CONFIG.SYS.Installing MS-DOS 7.1 DOS Long Filename (LFN) Support Enable/Disable Disable DOS Long Filename Supportīecause if it’s proper DOS, it is gonna need Windows 3.1. The MS-DOS 7.1 installation CD includes a number of DOS add-ons, such as: MS Backup, MS Anti-Virus, Norton Utilities 2002 for DOS, many ISA/PCI sound card drivers, QuickView Pro, MPXPLAY, and Volkov Commander. MS-DOS 7.0 (Windows 95 RTM), MS-DOS 7.1 (Windows 95 OSR2.x and 98), and the crippled MS-DOS 8.0 (Windows ME) were never released by Microsoft as standalone products. MS-DOS 7.1 (CDU) is a custom compilation, by the China DOS Union of MS-DOS 7.1 from Windows 95 OSR2.x and 98, combined with various utities.

Being curious of this MS-DOS 7.1 beast, I took it for a spin.

Back in the day, Windows 95 and 98 could make great floppy boot disks that would support CD-ROM drives and vfat filesystems, while still being DOS. However to my absolute surprise I discovered a team of people have put together an unofficial MS-DOS 7 distribution. Windows 95 and 98, being the spiritual successors of MS-DOS 6, are not unfamiliar to me. So is looking to get an MS-DOS 6 system setup for running masm. I was looking to do some Assembly language programming using masm, the assembly language tool I learned on in College.

Dos 7.1 boot disk