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Asked: 2026-05-17T02:54:22+00:00

I’m writing a dos-batch in which I need to change the PATH . I’m

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I’m writing a dos-batch in which I need to change the PATH.

I’m using the SET command.

The batch is run from the command line (cmd.exe).

The problem : the changes are only available for the cmd window, and I soon as this window is closed, the changes are dismissed.

How can I change the PATH from a batch and make sure the change will affect the whole system ?

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1 Answer

  1. Editorial Team

    There is a tool setx.exe provided in the Windows XP Service Pack 2 Support Tools that can be used to permanently change an environment variable from the command line:

    setx path "%PATH%;C:\New Folder"

    Source: http://vlaurie.com/computers2/Articles/environment.htm

    The above link also gives the location of the registry keys that store the system / user environment variables – if you are feeling adventurous you could also try setting those.

    User environment variables:

    HKEY_CURRENT_USER\Environment

    System environment variables:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment
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