Differences Between IBM PC-DOS 5.0 and MS-DOS 5 Upgrades (75169)
The information in this article applies to:
• Microsoft MS-DOS operating system 5.0
This article was previously published under Q75169
IBM is shipping their own version of the Microsoft MS-DOS 5 Upgrade
called PC-DOS 5.0 Upgrade. It is currently available from software
retailers. This is quite different from the Microsoft MS-DOS 5 Upgrade
released by Microsoft.
Some of the major differences are as follows:
• Setup: IBM's Setup works basically the same, with some exceptions to
the options available. You cannot install to floppy disks, and you
must have IBM PC-DOS installed on the hard drive. Only IBM PC-DOS
versions 2.1 to 5.0 are supported. You also must boot from the
Upgrade to install.
• IBM PC-DOS 5.0 Upgrade has 122-key keyboard support.
• IBM PC-DOS 5.0 Upgrade has Icelandic code page support.
• IBM PC-DOS 5.0 Upgrade ships with Microsoft Mouse Driver version
• IBM PC-DOS 5.0 Upgrade includes a utility to convert version 4.0
DOS Shell .MEU files into the current DOSSHELL.INI file.
• IBM PC-DOS 5.0 Upgrade does not include DEBUG.EXE and EXE2BIN.EXE.
These programs must be purchased separately as part of the IBM
• Date and Time of IBM PC-DOS files are 05-09-91 at 12:00p.
• The "IBM PC-DOS Getting Started" manual recommends using
SMARTDRV.SYS as opposed to IBMCACHE.
• IBM PC-DOS 5.0 Upgrade includes AUTOCONF.EXE, which will make your
original CONFIG.SYS and AUTOEXEC.BAT files compatible with DOS 5.0.
The product included here (IBM PC-DOS) is manufactured by vendors
independent of Microsoft; we make no warranty, implied or otherwise,
regarding this product's performance or reliability.
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