DOSSHELL.INI and Password Encryption (74449)
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
This article was previously published under Q74449
MS-DOS Shell allows you to create program items and groups with
password protection. The password can be entered either through Shell
when the program/group item is created, or manually by adding the
appropriate lines under the [programstarter] section in the
Adding a program/group item through Shell with a password containing
lowercase letters results in the rewritten DOSSHELL.INI file to remap
the lowercase letters of the password to uppercase, six alphabetic
characters away from the original letter. For example, if you enter
it will be written to the DOSSHELL.INI password section as
Thus, a = G
b = H
c = I
d = J
e = K
f = L
g = M, and so on.
If you manually edit the DOSSHELL.INI file and enter a password with
any lowercase letters, the program/group item will not be accessible
when prompted for the password, even if you type it exactly as it was
entered. If you manually edit DOSSHELL.INI and change the password to
all capital letters, the password will not be encrypted.
• In the MS-DOS Shell main window, highlight Command Prompt.
• From the File menu, choose Properties. In the Password text box,
To run the command prompt from now on, you must enter the password
• Open DOSSHELL.INI in MS-DOS Editor.
• Note that the password for Command Prompt is encrypted as GHIJ.
• Change the password to ZZZZ and save the file.
The password to start the command prompt is now ZZZZ.
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