environment-variable - Dave's Blog

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Changing System Environment Variables on Windows

2012 Mar 16, 3:13

Is this really the right way to do this? Feels icky:

To programmatically add or modify system environment variables, add them to the HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment registry key, then broadcast a WM_SETTINGCHANGE message with lParam set to the string “Environment”.

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