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Q104733: ScanDisk /CHECKONLY Mode on Third-Party Compressed Disks

Article: Q104733
Product(s): Microsoft Disk Operating System
Version(s): MS-DOS:6.2,6.21,6.22
Operating System(s): 
Keyword(s): 
Last Modified: 18-NOV-1999

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The information in this article applies to:

- Microsoft MS-DOS operating system versions 6.2, 6.21, 6.22 
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SUMMARY
=======

If ScanDisk detects Stacker, XtraDrive, SuperStor, or DoubleDisk drivers in
memory, it runs in CHECKONLY mode.

MORE INFORMATION
================

If you run ScanDisk on a system using third-party disk-compression software
without specifying any command-line parameters (or with command-line parameters
that are incompatible with /CHECKONLY), ScanDisk displays the following message

  You cannot use the /<SWITCH_NAME> while <COMPR_SW_NAME> is
  running.
  To check for disk problems without fixing them, type SCANDISK /CHECKONLY at
  the command prompt.

where <SWITCH_NAME> is AUTOFIX or CUSTOM and <COMPR_SW_NAME> is
Stacker, SuperStor, DoubleDisk, or XtraDrive.

Erroneous Error Message with Third-Party Device Drivers
-------------------------------------------------------

The following third-party device drivers cause ScanDisk to erroneously report
that third-party disk-compression software is running:

  Device Driver      Third-Party Product
  -------------      -------------------
  BRIDGE.DRV         SYSGEN external floppy drive
  DISCTEC.SYS        DISCTEC removable hard drive


If you run ScanDisk on a system using third-party disk-compression software and
use command-line parameters that are compatible with /CHECKONLY, no message is
displayed.

To repair problems with your third-party disk-compression software, use the disk
repair utility provided with the product.

ScanDisk also refuses to scan uncompressed disks on systems using third- party
disk-compression software because it detects the disk-compression software by
scanning memory, rather than attempting to detect which drive is compressed.


Additional query words: 6.22 6.20 addstor adstor

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Keywords          :  
Technology        : kbMSDOSSearch kbMSDOS621 kbMSDOS622 kbMSDOS620
Version           : MS-DOS:6.2,6.21,6.22

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