How do I enable/disable command extensions?

John Savill

January 8, 2000

1 Min Read
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A. A. When you use CMD.EXE, there are various extensions which are enabled by default. To enable/disable perform the following

  1. Start the registry editor (regedit.exe)

  2. Move to HKEY_CURRENT_USERSoftwareMicrosoftCommand Processor

  3. Double click on EnableExtensions

  4. Set to 1 for them to be enabled, or set to 0 for extensions to be disabled

  5. Click OK

You can also enable/disable them for a specific command session by using the appropriate qualifier to cmd.exe

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

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