Microsoft KB Archive/97671

= ECR Cannot Be Decreased Beyond a Certain Range =

Article ID: 97671

Article Last Modified on 11/22/1999

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APPLIES TO


 * Microsoft MS-DOS 6.0 Standard Edition
 * Microsoft MS-DOS 6.2 Standard Edition
 * Microsoft MS-DOS 6.22 Standard Edition

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This article was previously published under Q97671



SYMPTOMS
This information applies to both Microsoft DoubleSpace and Microsoft DriveSpace. For MS-DOS 6.22, use DRVSPACE in place of DBLSPACE for commands and filenames.

The estimated compression ratio (ECR) cannot be decreased beyond a certain range if a drive has become too fragmented.



CAUSE
This situation occurs when there is a large unused section in the file allocation table (FAT) and a used cluster exists at the very end. If you could reduce the ECR below the value DoubleSpace limits you to, the last cluster would be truncated by the edge of the new FAT table size.



WORKAROUND
To work around this problem, run Microsoft Defragmenter (Defrag) on your compressed drive.

Additional query words: 6.00 defrag chopped cut off double space 6.20 dblspace ecr

Keywords: KB97671

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