Windows path

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About the path

The Windows path is an environment variable that specifies the search path for finding installed programs. It is particularly useful for command-line programs, so the programs may be run by typing only the program name, without having to specify the installation directory of the program.

Viewing the path

Control Panel

Open the System Control Panel by searching for 'System' in the search box of the Windows task bar.

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From Control Panel, click on Advanced System Settings

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From System Properties, click on Environment Variables

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From Environment Variables, in the System Variables section, highlight Path, then click Edit

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The Windows path is now displayed. Each line holds a location that will be searched for an installed program.

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If you install a new command line program, you must add the path of the program to the path, so it can be found.

In this example we have installed dcm4che3 into a directory named C:\imaging\dcm4che-3.3.8. The actual programs are in a subdirectory named bin, so the full path to the programs is C:\imaging\dcm4che-3.3.8\bin

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To add a new path, click New and fill in the path to the newly-installed programs. Click OK to save.

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Powershell

To display the path in Powershell, type $env:path

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Command Prompt

To display the path in Command Prompt, type path

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