MS-DOS Backup Err Msg: Unable to Open Component File (91664)
The information in this article applies to:
- Microsoft MS-DOS operating system 6.0
- Microsoft MS-DOS operating system 6.2
- Microsoft MS-DOS operating system 6.21
- Microsoft MS-DOS operating system 6.22
This article was previously published under Q91664 SYMPTOMS
If you back up to a network drive, and someone moves your files, you
cannot restore them until they are moved back. When you try to restore
your files, you receive the following error message:
Unable to open component file
<drive:path:filename>
CAUSE
If you back up to a fixed (not floppy) drive, Microsoft Backup creates
a .001 file in a .FUL directory. For example, if you back up to
F:\TEMP on your fixed drive or a network drive, Backup creates
f:\TEMP\DEFAULT\xxxxxxxx.FUL\xxxxxxxx.001
where xxxxxxxx are numbers and letters generated from the date. Moving
the .001 file causes the restore option in Backup to fail and
generates the error message.
WORKAROUND
To work around this problem, re-create your original directory
structure and move the .001 file back to its original location. If
you cannot remember the original directory structure, attempt to
restore your files again. The error message displayed by Backup tells
you the directory and filename for which it is looking.
How the Backup Filename in Generated
The backup file for DEFAULT\CCYMMDDA.FUL is calculated as follows:
default = name of backup set
y = last number of year
mm = month of backup
dd = day of backup
a = A - Z, depending on the number backups that day
| Modification Type: | Major | Last Reviewed: | 11/26/1999 |
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| Keywords: | KB91664 |
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