DOCUMENT:Q64977 19-NOV-1999 [msdos] TITLE :Using MS-DOS 5.0 Setup Rather Than MS-DOS 5 Upgrade Setup PRODUCT :Microsoft Disk Operating System PROD/VER:MS-DOS:5.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft MS-DOS operating system version 5.0 ------------------------------------------------------------------------------- SUMMARY ======= When the Microsoft MS-DOS version 5.0 installation program is run on a machine that had a previous system present, the program copies the CONFIG.SYS and AUTOEXEC.BAT files to CONFIG.OLD and AUTOEXEC.OLD, replacing them with new ones of its own. The Microsoft MS-DOS 5 Upgrade's Setup, however, simply modifies the current files. This can cause problems because the MS-DOS installation program changes system settings such as the "files=" and "buffers=" settings to values that may cause programs already installed on the machine to fail. One situation in which this is a problem is if Windows is present on the system. The installation program sets "files=" to 10, a value that is too low for Windows to run. Additional query words: 5.00 ====================================================================== Keywords : Technology : kbMSDOSSearch kbMSDOS500 Version : MS-DOS:5.0 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 1999.