adding a directory to the PATH env var

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Posts: 1
Joined: Fri Feb 26, 2021 1:07 am

Apologies if this has been addressed before, I couldn't find it:

I want to add my app's directory (my app is a set of command line tools) to the PATH environment variable, i.e. concatenate the
directory name to the end of the existing value "Path" of the registry key "Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment".
Ideally also, not adding it if it is already there, and removing it during uninstall.

I can see how to add new values, but I am not sure how to concatenate a string to the end of an existing value.

Thanks for your help!
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