Enable / Disable Command prompt extensions

by Wayne Maples [Published on 20 April 2004 / Last Updated on 20 April 2004]

If the Windows 2000 / Windows XP Command Extensions are enabled the PROMPT command supports the following additional formatting characters:
  $+   zero or more plus sign (+) characters depending upon the
       depth of the PUSHD directory stack, one character for each
       level pushed.

  $M   Displays the remote name associated with the current drive
       letter or the empty string if current drive is not a network
To enable or disable the command prompt extension in Windows 2000 or Windows XP, use the following registry hack:

Key: Software\Microsoft\Command Processor
Name: EnableExtensions
Value: 1 enable
Value: 0 disable

You can enable/disable the extensions for the command shell you are in by issuing the following commands:

cmd /y disables command extensions for this cmd session
cmd /x enables command extensions for this cmd session

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