Damaged CVFs and Third-Party Repair Software (96880)

The information in this article applies to:
    Microsoft MS-DOS operating system 6.0

This article was previously published under Q96880


The later versions of most third-party disk repair programs, such as Norton Disk Doctor, should work properly with DoubleSpace-compressed drives. However, CHKDSK.EXE (which calls DBLSPACE/CHKDSK on DoubleSpace drives) is aware of more details about the internal workings of a compressed volume file (CVF) and can diagnose and repair problems other software may not find.

WARNING: Before you run any third-party disk repair program on your MS-DOS 6.0 system, you should verify that the program is compatible with MS-DOS 6.0 and with DoubleSpace-compressed drives.


In general, third-party utility software works correctly with DoubleSpace drives. For example, Norton Disk Doctor (NDD.EXE) performs its functions exactly as it should. However, there are problems that may occur in a DoubleSpace drive that most third-party software cannot to detect; these problems can are best corrected by running CHKDSK.EXE.

Modification Type: Major Last Reviewed: 11/19/1999
Keywords: KB96880