Microsoft KB Archive/105612

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PSS ID Number: 105612

Article Last Modified on 11/18/1999



The information in this article applies to:

  • Microsoft MS-DOS operating system 6.2



This article was previously published under Q105612

SUMMARY

The following information was taken from the MS-DOS 6.2 README.TXT file.

NOTE: The MS-DOS 6.2 Upgrade and MS-DOS 6.2 Step-Up (both downloadable and disk versions) include the same README.TXT file.

NOTES ON MS-DOS 6.2

This file provides important information not included in the MICROSOFT MS-DOS 6 USER'S GUIDE or in MS-DOS Help.

This file is divided into the following major sections:

  1. Setup
  2. MemMaker, EMM386, and Memory Management
  3. Windows
  4. Hardware Compatibility with MS-DOS 6.2
  5. Microsoft Programs
  6. Third-Party Programs
  7. DoubleSpace

If the subject you need information about doesn't appear in this file, you might find it in one of the following text files included with MS-DOS:

  • OS2.TXT, which describes how to remove and save data on your computer when you replace OS/2 with MS-DOS 6.2.
  • NETWORKS.TXT, which describes how to update your network software for use with MS-DOS 6.2.

For information about features new to MS-DOS 6.2, type HELP WHATSNEW at the command prompt.

This file contains the following topics:

  1. Setup


1.1 SpeedStor
1.2 Incompatible Hard Disk or Device Driver
1.3 AT&T 6300 Computer
1.4 Toshiba with a Hard RAM Disk
1.5 Tandy with ROM DOS
1.6 Setup displays the "Your computer uses a disk-compression program that is incompatible with Setup" message. 1.7 You deleted files from the directory that Setup needs to install the optional Windows programs.
1.8 Running Setup if Your Computer Uses Windows NT
1.9 Setup detects that your computer has a non-MS-DOS partition or non-MS-DOS files, and your computer uses Windows NT.
1.10 Setup displays the "Your computer uses password protection" screen.
1.11 Setup displays the "Your computer is using an incompatible delete-protection program" screen.
1.12 Setup detects that your computer uses DR DOS.
1.13 Installing MS-DOS on a Drive Other Than C
1.14 Bypassing the Uninstall Disk and Using Default Setup Options
1.15 Installing MS-DOS 6.2 on a System with a CorelSCSI UNI_ASP.SYS Driver
1.16 Installing MS-DOS 6.2 if you have DrivePro or EZ-Drive
1.17 Additional Keyboard and Codepage Support
1.18 Switching Between Modes on Dual-Mode Keyboards

  1. MemMaker, EMM386, and Memory Management


2.1 Intel Expanded-Memory Driver (EMM.SYS)
2.2 Running MemMaker on a Computer with PC-NFS
2.3 You have a Super VGA display and want to conserve memory.
2.4 Using MemMaker with IBM LAN
2.5 MemMaker and Adaptec SCSI devices
2.6 Running MemMaker on a computer with PC Tools RAMBoost
2.7 EMM386 detects an error in an application
2.8 MemMaker no longer aggressively scans upper memory by default

  1. Windows


3.1 Your computer uses a Windows 3.0 permanent swap file.
3.2 Using compressed floppy disks with Windows File Manager

  1. Hardware Compatibility with MS-DOS 6.2


4.1 Compaq EXTDISK.SYS Driver
4.2 Hardcard
4.3 Toshiba

  1. Microsoft Programs


5.1 Microsoft Anti-Virus
5.2 Running Microsoft Backup for MS-DOS under Windows
5.3 Backup for Windows stops running at the end of the compatibility test
5.4 Running Microsoft Backup with TI4000 and Gateway NOMAD computers
5.5 Microsoft Defragmenter

  1. Third-party Programs


6.1 4DOS and NDOS
6.2 Above Board 286 and Above Board Plus Installation Programs
6.3 CodeView
6.4 Colorado Tape Backup
6.5 Fastback Plus
6.6 Norton Desktop for Windows 2.0
6.7 Norton Utilities
6.8 PC Tools
6.9 QEMM's Stealth DoubleSpace Feature
6.10 Johnson Computer Systems PC-Vault and PC-Vault Plus
6.11 AddStor DoubleTools

  1. DoubleSpace


7.1 Converting Your XtraDrive Disk-Compression Software to DoubleSpace
7.2 Converting Stacker 2.x or 3.0 Software to DoubleSpace
7.3 Converting Stacker 3.1 Software to DoubleSpace
7.4 Converting Other Disk-Compression Software to DoubleSpace
7.5 DoubleSpace Setup indicates that your computer is running an incompatible disk-caching program. 7.6 Your compressed drive runs out of disk space.
7.7 Your uncompressed (host) drive runs out of disk space.
7.8 DoubleSpace did not compress all of your files because the drive ran out of disk space.
7.9 Windows displays the message "The permanent swap file is corrupt."
7.10 EXTDISK.SYS displays a warning about drive letters.
7.11 You need a special device driver to use your startup drive.
7.12 Defragmenting uncompressed drives after changing file attributes
7.13 Files DoubleSpace cannot compress
7.14 Microsoft Defragmenter runs out of memory while you are compressing a drive.
7.15 DoubleSpace and PC-Vault
7.16 Maximum size of a compressed drive
7.17 DoubleSpace could not mount a drive due to problems with the drive
7.18 DoubleSpace finishes installation, but you cannot access your Hardcard.
7.19 You receive a DoubleGuard Alarm message
7.20 A compressed drive is currently too fragmented to mount
7.21 DoubleSpace displays the message "Your computer is running with an incompatible version of DBLSPACE.BIN"
7.22 Using the DBLSPACE command after bypassing DBLSPACE.BIN
7.23 Removing the write-protection from a compressed floppy disk
7.24 Automounting and Norton Disk Cache
7.25 Undelete utilities and DoubleSpace

1. SETUP

1.1 SpeedStor

If Setup referred you to this section and your computer has an OS/2 partition created by using the FDISKPM utility in OS/2 2.1, run MS-DOS Setup by typing SETUP /U at the command prompt.

If Setup referred you to this section and you have neither OS/2 nor a SpeedStor partition on your computer, see the section "Setup displays the Incompatible Hard Disk or Device Driver screen" in the "Diagnosing and Solving Problems" chapter of the MS-DOS 6 User's Guide.

If you do have a SpeedStor partition on your computer, Setup probably referred you to this section for one of the following reasons:

  • Setup could not find in your CONFIG.SYS file a command for the device driver that supports your SpeedStor partition. If this is the case, add the command line to your CONFIG.SYS file, restart your computer, and run Setup. For more information about adding the command line to your CONFIG.SYS file, see your SpeedStor documentation.
  • Your CONFIG.SYS file has a DEVICE=HARDRIVE.SYS line in it. If this is the case, carry out the following procedure:


    1. Use the EXPAND command to expand and copy the SSTOR.SYS file to your hard disk. Make sure you copy the SSTOR.SYS file to the same path as the HARDRIVE.SYS file.


See the PACKING.LST file on Setup Disk 1 for the location of the SSTOR.SYS file on the Setup disks and for instructions on how to expand and copy it to your hard disk.?

    1. Replace the DEVICE=HARDRIVE.SYS command with a DEVICE=SSTOR.SYS command. For example, if the command that loaded the HARDRIVE.SYS file was DEVICE=C:\SSTOR\HARDRIVE.SYS, you would replace it with DEVICE=C:\SSTOR\SSTOR.SYS.
    2. Restart your computer.
    3. Make sure you can access your hard disk.
    4. Run Setup.

1.2 Incompatible Hard Disk or Device Driver

If Setup referred you to this section, and no other section in this file is relevant to your system, you have a partition that is incompatible with MS-DOS 6.2. You must delete the partition from your hard disk. See "Using Fdisk to Configure Your Hard Disk" in the chapter "Diagnosing and Solving Problems" in the MICROSOFT MS-DOS 6 USER'S GUIDE.

1.3 AT&T 6300 Computer

If you use an AT&T 6300 computer and your ROM BIOS is version 1.21, contact your vendor for a ROM BIOS upgrade. The ROM BIOS version number is displayed when you start your computer.

1.4 Toshiba with a Hard RAM Disk

These instructions apply to Toshiba models T1200, T1600, T1200XE and T1000LE.

To use the hard RAM disk, carry out the following procedure before you install MS-DOS 6.2:

  1. Back up your hard RAM disk.
  2. Using the Toshiba Setup program, delete the hard RAM disk by allocating zero kilobytes (KB) to it. All data on the hard RAM disk will be lost.
  3. Restart your computer
  4. Run MS-DOS 6.2 Setup.
  5. After Setup is complete, run the Toshiba Setup program to reinstall the hard RAM disk.
  6. Run FDISK, change to drive 2, and create a primary DOS partition. Quit FDISK.
  7. Use the FORMAT command to format drive D.

1.5 Tandy with ROM DOS

Contact your hardware manufacturer for information about upgrading a Tandy computer with ROM DOS to MS-DOS 6.2. This applies to the following models: 1000EX, 1000HX, 1000SL, 1000SL2, 1000TL, 1000TL2, 1000TL3, 1000RL, 1000RLX, 1000RL-HD, 1000RLX-HD, 1100FD, 2500XL, 2500XL2.

1.6 Setup displays the "Your computer uses a disk-compression program that is incompatible with Setup" message.

If Setup indicated that your computer has an incompatible disk-compression program, you must remove it manually before you can install MS-DOS 6.2. Carry out the following procedure.

NOTE This procedure will replace your current disk-compression software with DoubleSpace. As an alternative, contact your disk- compression vendor for an updated version of your software. In most cases, current versions of disk-compression software are compatible with MS-DOS 6.2.

  1. Back up all the files on your compressed drive. In step 3, you will format your uncompressed drive, which destroys all the files on your compressed and uncompressed drives.
  2. If your Setup disks are compatible with drive A, insert Setup Disk 1 in drive A, and restart your computer. After Setup displays the first screen, quit Setup by pressing F3 twice.


If your Setup disks are not compatible with drive A, create a startup floppy disk for drive A. To do this, insert Setup Disk 1 in drive B, and a blank floppy disk in drive A. Then type B:SETUP /F at the command prompt.

When prompted, choose to install MS-DOS on the floppy disk in drive A. After Setup is finished, leave the disk in drive A, and restart your computer.

  1. At the command prompt, type FORMAT C: /S to reformat your startup drive and transfer MS-DOS 6.2 system files to it.
  2. Remove the disk from drive A, and restart your computer.
  3. Insert Setup Disk 1 in drive A or B, and type A:SETUP or B:SETUP at the command prompt.
  4. After Setup is complete, type DBLSPACE at the command prompt, and follow the instructions on your screen.


For more information about DoubleSpace, see the chapter "Freeing Disk Space" in the MICROSOFT MS-DOS 6 USER'S GUIDE.

  1. After you have installed DoubleSpace, restore the files you backed up. Do not restore older versions of MS-DOS files.

1.7 You deleted files from the directory that Setup needs to install the optional Windows programs.

If you typed BUSETUP /E at the command prompt, the "Setup did not find the files it needs in the directory specified" message appeared, and you think you deleted the files from your hard disk, insert Setup Disk 1 in drive A or B, and start Setup by typing A:SETUP /E or B:SETUP /E at the command prompt.

1.8 Running Setup if Your Computer Uses Windows NT

If your computer has Windows NT installed, but does not have MS-DOS installed on it, carry out Procedure 1. If your computer has Windows NT and MS-DOS installed on it, carry out Procedure 2.

Procedure 1

  1. Run Setup by inserting Setup Disk 1 in drive A and restarting your computer. Complete Setup by following the instructions on the screen. When Setup is complete, Windows NT will be disabled.


If Windows NT was installed on a FAT partition, complete steps 2 and 3 of this procedure to reenable Windows NT so that you can use both the Windows NT and MS-DOS operating systems.

If Windows NT was installed on a non-FAT partition, see section 1.9.

  1. Insert your Windows NT Setup disk in drive A or drive B, and then restart your computer.
  2. When the Windows NT Setup screen appears, choose Repair, and then insert your Windows NT Emergency Repair Disk (which you created when you installed Windows NT) to repair the Windows NT system files.

Procedure 2

  1. When you start your computer, choose MS-DOS as your operating system.?
  2. Run Setup by inserting Setup Disk 1 in drive A or B, and typing A:SETUP or B:SETUP at the command prompt.

1.9 Setup detects that your computer has a non-MS-DOS partition or non-MS-DOS files, and your computer uses Windows NT

The procedure you use depends on whether you want to preserve the partition and its files. Find the section below that describes the configuration you want.

You Don't Want to Preserve the Partition or its Files

If you don't want to preserve the partition or its files, choose to remove the partition or files if Setup prompts you to do so. If Setup doesn't offer you that choice, remove the partition manually after Setup is complete. For instructions on removing a non-MS-DOS partition manually, see "Using Fdisk to Configure Your Hard Disk" in the chapter "Diagnosing and Solving Problems" in the MICROSOFT MS-DOS 6 USER'S GUIDE.

You Don't Want to Preserve the Partition but Want to Save its Files

If you want to save the data files, but don't want to preserve the partition, back up the files, run Setup again, and then choose to remove the partition or files if Setup prompts you to do so. If Setup doesn't offer you this choice, remove the partition manually after Setup is complete. For instructions on removing the partition manually, see "Using Fdisk to Configure Your Hard Disk" in the chapter "Diagnosing and Solving Problems" in the MICROSOFT MS-DOS 6 USER'S GUIDE.

You Want to Preserve the Partition and Its Files

Carry out the following procedure.

NOTE If the non-MS-DOS partition takes up all the space on your hard disk, you must reconfigure your hard disk. You can either let Setup do it for you, as described in the preceding section, or reconfigure it yourself manually. For instructions on reconfiguring your hard disk manually, see your Windows NT documentation.

To install MS-DOS 6.2 and preserve your partition or files:

  1. Run MS-DOS Setup.
  2. When prompted, choose to continue Setup without removing the partition or files.
  3. After Setup is complete, insert your Windows NT Setup disk in drive A or drive B, and then restart your computer.
  4. When the Windows NT Setup screen appears, choose Repair, and then insert your Windows NT Emergency Repair Disk (which you created when you installed Windows NT) to repair the Windows NT system files.



Additional query words: msbackup ndw defrag 6.20 dblguard bbsstepup stepup

Keywords: KB105612
Technology: kbMSDOS620 kbMSDOSSearch