DELOLDOS Command and OLD_DOS Directory Creation Limit (70753)
The information in this article applies to:
- Microsoft MS-DOS operating system 5.0
- Microsoft MS-DOS operating system 5.0a
- 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 Q70753 SUMMARY
In the Microsoft MS-DOS Upgrade for versions 5.0 and later, DELOLDOS
command deletes all OLD_DOS.x directories residing in the root directory of
the boot drive. Upon deletion of the these directories, DELOLDOS.EXE itself
is also deleted from the directory it resides in.
The MS-DOS Upgrade installation process can create a total of 99 old DOS
directories named OLD_DOS.<x>:
The <x> value is based upon the integer extensions of any previous OLD_DOS
directories residing in the root directory of the boot drive, so that <x>
is the next integer available in order starting at 1. When the installation
process attempts to create the 100th OLD_DOS directory, it instead replaces
the last OLD_DOS directory made, creating a directory with the same name.
MORE INFORMATION
If the current DOS directory in use is deleted prior to installation or not
detected when installing, an OLD_DOS.x directory is still created when
installing; however, it contains only the README.NOW file. Also, any non-
DOS files put into the DOS directory aren't saved in the OLD_DOS.x during
installation. Those files are put into the new installed DOS directory
instead.
| Modification Type: | Major | Last Reviewed: | 5/12/2003 |
|---|
| Keywords: | KB70753 |
|---|
|